Consulta: subjectFacets:"Bivalvia"
Registros recuperados: 149
Data/hora: 14/06/2024 16:18:42

CHILEAN MARINE MOLLUSCA OF NORTHERN PATAGONIA COLLECTED DURING THE CIMAR-10 FJORDS CRUISE
Provedor de dados: 72
Autores: Cárdenas,Javiera; Aldea,Cristian; Valdovinos,Claudio.
The tip of the South American cone is one of the most interesting Subantarctic areas, both biogeographically and ecologically. Nonetheless, knowledge of the area's biodiversity, in particular that of the subtidal marine habitats, remains poor. Therefore, in 2004, a biodiversity research project was carried out as a part of the cruise Cimar-10 Fjords, organized and supported by the Chilean National Oceanographic Committee (CONA). The results of the subtidal marine mollusk surveys are presented herein. The samples were collected aboard the Agor 60 "Vidal Gormaz" in winter 2004. The study area covered the northern Chilean Patagonia from Seno de Relocanví (41°31'S) to Boca del Guafo (43°49'S), on the continental shelf from 22 to 353 m depth. The Mollusca were...
Tipo: Journal article
Palavras-chave: Biodiversity; Taxonomy; South America; Fjords; Polyplacophora; Gastropoda; Bivalvia; Scaphopoda.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382008000200010

Морфология жаберного аппарата двустворчатых моллюсков в связи с загрязнением донных осадков
Provedor de dados: 13
Autores: Копытов, Ю. П.; Тимофеев, В. А.; Самышев, Э. З.
Исследована морфологическая структура жаберного аппарата Mytilus galloprovincialis, Chamellea gallina, Cerastoderma glaucum  из прибрежных акваторий Крыма с разным уровнем загрязнения донных осадков. Выявлено существование компенсаторного механизма, позволяющего увеличивать интенсивность работы дыхательного аппарата в пессимальных условиях за счёт увеличения показателя приведённой удельной поверхности (S0). Ингибирование физиологического состояния моллюсков компенсируется повышением степени рассеченности жабр, что способствует выравниванию интенсивных обменных процессов.
Tipo: Journal Contribution
Palavras-chave: Двустворчатые моллюски; Загрязнение среды; Адаптация; Bivalvia; Environmental pollution; Adaptation.
Ano: 2009
URL: http://repository.ibss.org.ua/dspace/handle/99011/1084

Распределение двустворчатых моллюсков рода Hypanis Pander in Ménétriés, 1832 (Bivalvia, Cardioidea: Limnocardiidae) в Таганрогском заливе (Азовское море).
Provedor de dados: 13
Autores: Набоженко, М. В.
В статье рассматривается морфология, распределение, количественные характеристики популяций и роль в донных сообществах видов рода Hypanis в Таганрогском заливе Азовского моря. Вопрос о видовом составе рода в Таганрогском заливе является спорным. Различными авторами указывалось от 1 до 3 различных видов этого рода, в том числе и эндемиков лиманов и озер Северо-Западного Причерноморья. В заливе представлены два вида Hypanis: H. vitrea glabra и H. colorata. Виды четко отличаются строением лигаментов, створок раковин, мантийной и сифональной мускулатуры. Первый вид является вселенцем из Северного Каспия. Включение его в экосистему Таганрогского залива происходило, вероятно, неоднократно. Однако окончательное освоение вида в заливе произошло, видимо в конце 20...
Tipo: Journal Contribution
Palavras-chave: Bivalvia; Hypanis; Таганрогский залив; Морфология; Распределение; Биомасса; Донные сообщества.
Ano: 2005
URL: http://repository.ibss.org.ua/dspace/handle/99011/908

Accumulation and depuration of hydrocarbons in the mangrove oyster Crassostrea rhizophorae
Provedor de dados: 5
Autores: Delcastillo, C; Corredor, J; Morell, J.
Adult specimens of Crassostrea rhizophorae were exposed to diesel oil dispersed in seawater. The experiment consisted of a 10 days contamination period and 15 days depuration period. Oyster samples were extracted, and analysed by gas chromatography and UV fluorescence spectroscopy. The concentrations of n-alkanes, branched alkanes, unresolved complex mixture (UCM) and aromatic hydrocarbons were determined. The oysters accumulated the hydrocarbons rapidly, reaching a maximum concentration of 387.5 ug/g (wet weight). After exposure to uncontaminated seawater, the oysters were able to reduce their hydrocarbon load to 5.6 ug/g. The data indicates that C. rhizophorae is capable of preferential accumulation and depuration of hydrocarbons. Apparently, the oysters...
Tipo: Text
Palavras-chave: Crassostrea rhizophorae; Bivalvia; Fluorescence spectroscopy; Gas chromatography; Oyster culture; Hydrocarbons; Marine pollution; Accumulation; Self purification.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1602.pdf

Depuration of copper nitrate and chloride in the Indian brown mussel Perna indica
Provedor de dados: 5
Autores: Kondajii, N; Menon, N.
It is understood that the rate of bioaccumulation and subsequent depuration of heavy metals in marine animals is influenced by the chemical state, as well as the kinetics of transformation between different species of chemical salts dissolved in water. The Indian Brown mussel, Perna indica, was exposed to copper nitrate and chloride, individually, to analyse the rate of accumulation, depuration, oxygen uptake and filtration rates. When supplied in very low quantities, environmentally realistic concentrations, the rate of accumulation of copper nitrate and chlorides showed variations. When the animals were transferred to sea water, these two salts did not show any clear cut differences in the depuration rate. Irrespective of the previous accumulation...
Tipo: Text
Palavras-chave: Perna indica; Bivalvia; Chlorides; Copper; Mussel culture; Heavy metals; Marine pollution; Accumulation; Self purification.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1603.pdf

Ecosystemes benthiques profonds et chimiosynthese bacterienne: Sources hydrothermales et suintements
Provedor de dados: 5
Autores: Laubier, Lucien.
Hydrothermal communities of various species compositions have been described from the eastern and western Pacific and Atlantic. Brine and cold seeps and hydrocarbon seepages have been found off Florida, off the Oregon and Japanese subduction systems, on the Laurentian Fan, near Barbados, and off Louisiana. Biomasses range from 10 to 70 kg/m super(2), fresh weight. Basic microdistribution of species groups in aureoles centered around hydrothermal vents reveals different levels of adaptation to harsh physico-chemical conditions. Two groups of primary producers can be recognized: a highly efficient cool water group with large vestimentiferan tube worms and bivalves, and alvinellid polychaetes adapted to hot waters. Both groups are exploited by specific...
Tipo: Text
Palavras-chave: Bivalvia; Polychaeta; Bacteria; Symbionts; Biosynthesis; Chemosynthesis; Food webs; Biomass; Hydrocarbons; Ecosystems; Hydrothermal springs; Seepages; Brines; Benthic environment; Benthos.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/1990/acte-1171.pdf

Etude histoensymologique de la digestion chez Ruditapes philippinarum
Provedor de dados: 5
Autores: Hily, A.
Examinations of alimentary tract and digestive tubules after feeding give evidence of continuous digestive process in juveniles of Ruditapes philippinarum . Histoenzymologic study of digestive tract suggests important intracellular enzymatic activities in stomacal epithelium, digestive gland and intestinal cells. Main part of intracellular digestion occurred in digestive cells by lysosyme associated with vacuolar system.
Tipo: Text
Palavras-chave: Ruditapes philippinarum; Bivalvia; Digestive system; Enzymatic activity; Histology; Digestive glands; Digestion; Enzymes digestives; Digestion; Bivalve.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1180.pdf

Etude experimentale preliminaire sur les echanges gazeux chez Pinna nobilis
Provedor de dados: 5
Autores: Vicente, N; Riva, A; Butler, A.
Breathing exchanges of Pinna nobilis L. are studied in situ and in the laboratory with two methods. First method consist in introducing samples of Pinna under a 40l plexiglass bell equipped with haps. The bell is positionned by diving. The consumption of oxygen is observed with water samples and the oxygen concentration is measured with an electronic oxymeter. Experiments which are carried out during nycthemeral cycles are reproduced in the laboratory with the same type of bell. A second method carry into effect an apparatus more sophisticated, who put into circulation a current of water in an airtight thermostated cellule, where a specimen of young Pinna is introduced. This sample is gradually adaptated to the conditions of the medium. Breathing...
Tipo: Text
Palavras-chave: Pinna nobilis; Bivalvia; Temperature; Metabolism; Oxygen consumption; Experimental research; Breathing mixtures; Marine molluscs.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1761.pdf

Diagnostic quantitatif de Perkinsus atlanticus (Apicomplexa, Perkinsea) chez les palourdes Ruditapes decussatus et Ruditapes philippinarum
Provedor de dados: 5
Autores: Almeida, Manuela.
Le protozoaire parasite Perkinsus atlanticus (Azevedo, 1989) est une des causes des chutes de production de palourdes Ruditapes decussatus et R. philippinarum cultivées au Portugal, en Espagne et en Italie. Des modèles d'infection de Perkinsus ont été réalisés, par reproduction expérimentale de la maladie, pour étudier le rôle de la densité des palourdes, de la température et de la salinité sur le déroulement de la Perkinsiose. L'objectif de ce travail a été de développer une technique de diagnostic quantitative pour optimiser l'évaluation de l'intensité d'infection et détecter de faibles infections des palourdes par P. atlanticus. Le principe de cette technique consiste à cultiver tous les tissus de la palourde en milieu thioglycolate, suivi d'une lyse à...
Tipo: Text
Palavras-chave: Pathologie; Protozoaire; Parasite; Perkinsus atlanticus; Bivalvia; Ruditapes decussatus; Ruditapes philippinarum; Diagnostic.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00033/14416/11710.pdf

Ennemis et maladies des huîtres
Provedor de dados: 5
Autores: Nedelec, Claude.
Une huître d'un an produit environ 100.000 larves; une de 2 ans près de 250.000 larves; une de 3 ans entre 700.000 et 800.000 et une huître de plus de 3 ans : un million en moyenne. Le nombre de larves libérées chaque année par un seul banc d'huîtres se chiffre ainsi par milliards (R. Ph. Dollfus). Mais beaucoup, parmi ces jeunes larves nageuses, sont la proie d'animaux planctoniques; un grand nombre d'entre elles sont entraînées au large, sont tuées et ne se fixent pas.
Tipo: Text
Palavras-chave: Huîtres; Bivalvia; Maladies; Remède; Ennemis.
Ano: 1953
URL: http://archimer.ifremer.fr/doc/00003/11471/8030.pdf

Mortalités d'huîtres japonaises sur le Banc de Ronce Les Bains : rapport provisoire au 4/8/88
Provedor de dados: 5
Autores: Bodoy, Alain; Garnier, Jacqueline; Geairon, Philippe; Chagot, Dominique; Grizel, Henri; Comps, Michel; Razet, Daniel.
Depuis le mois de juin 1988, les ostréiculteurs ont fait part de la présence de mortalités importantes sur le banc de Ronce (bassin de Marennes-Oléron), d'abord auprès de l'Ifremer et des Affaires Maritimes, puis des pouvoirs publics. Ces problèmes ont été évoqués lors d'une réunion en Préfecture de Charente-Maritime, le 4 juillet 1988. Il s'est alors avéré nécessaire de réaliser un constat de la situation notamment sur le banc de Ronce, et de faire le point sur les causes pouvant être à l'origine de la situation sur les mortalités survenues dans cette zone. Cette décision a été confirmée le 12 juillet, lors d'une réunion à la Sous-Préfecture de Rochefort. Le présent rapport présente les résultats scientifiques actuellement disponibles, ainsi que les...
Tipo: Text
Palavras-chave: Mortalité; Météorolgie; Paramètres hydrologiques; Physiologie; Croissance; Bivalvia; Crassostrea gigas; Bassin de Marennes Oléron.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/00086/19765/17406.pdf

Phytoplancton des zones myticoles de la baie de Vilaine et intoxication par les coquillages.
Provedor de dados: 5
Autores: Andresen Leitao, Maria Da Paz; Lassus, Patrick; Maggi, Pierre; Le Baut, Claire; Chauvin, Jacky; Truouet, Philippe.
Following 1978 and 1981 human poisoning by mussels in Vilaine Bay (France) a survey of potentially toxic dinoflagellates was conducted in that area in 1982. At the same time paralytic shellfish poison (PSP) analyses were made, the authors studied the dinoflagellates encountered in the intestinal guts of mussels from January to August 1982. Results failed to demonstrate an occurrence of PSP producing species, either by toxicological analysis or dinoflagellate persistency in the mussel guts.
Tipo: Text
Palavras-chave: Mytilus edulis; Bivalvia; Marine mollusks; Stomach content; Toxicity; Phytoplankton; Biological poisons; Mussel culture.
Ano: 1982
URL: http://archimer.ifremer.fr/doc/1982/publication-1853.pdf

La mytiliculture dans le "Pertuis Breton": synthèse des travaux réalises de 1980 a 1992
Provedor de dados: 5
Autores: Dardignac, Marie-jose.
The studies carried out between 1980 and 1992 in the "Pertuis Breton" showed that mussels growth was systematically reduced near the coastline for an identical immersion time. No relationship was established between current pattern, stocking biomass and growth results. In contrast, poor growth was strongly correlated to seawater quality and especially to high seston load. The author suggests further studies which could confirm and complement these results: a better environment understanding through data acquisition, inclusion of additional parameters, studies on factors affecting shellfish quality. Furthermore, specific studies are proposed which are aimed at optimising mussel production in the Pertuis Breton. This includes a constant spat recruitment...
Tipo: Text
Palavras-chave: Bivalvia; Recruitment; Spat; Mussel culture; Growth; Bouchot; Mytilus edulis; Pertuis Breton; Moule; Growth; Bouchot; Mytilus edulis; Pertuis Breton.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-1911.pdf

Les peuplements benthiques du plateau insulaire de la Martinique et des zones bathyales adjacentes. Cas particulier de la malacofaune
Provedor de dados: 5
Autores: Paulmier, Gerard; Durand, Francoise.
Several oceanographic surveys in Martinique waters with, as main objectives, either geological mapping and evaluating marine aggregate resources of research into deep water carcinologie resources, nafe produced interesting informtion on benthic pppulations situated from the infralittoral to the bathyal shelf, for the wole of faunistic groups and more specifically for the malacofauna. The distribution of the various faunistic group has been analysed in function to the bathymetric, edaphic and possibly, thermic factors. The infralittoral zones, up to the 20 metres isobath, and circalittoral, between 60  and 80 metres, are known to have the richest populations. Corals, sponges, polychaete annelida and molluscs are the best represented, numerically as well as...
Tipo: Text
Palavras-chave: Ecologie; Sédimentologie; Bathymétrie; Peuplements; Benthos; Invertebrés; Communautés; Bivalves; Gastéropodes; Ecology; Sedimentology; Bathymetry; Settelment; Benthos; Invertebrates; Molluscs; Communities; Bivalvia; Gastropoda.
Ano: 1997
URL: https://archimer.ifremer.fr/doc/00480/59191/61880.pdf

Dynamique et enzymologie de la digestion chez l'huitre Crassostrea gigas
Provedor de dados: 5
Autores: Boucaud, C; Lebesnerais, C; Lubet, P; Lihrmann, I.
Feeding experiments carried out on Crassostrea gigas allowed the authors to set up the stages and the timing of the movement of food throughout the digestive tract. Various activities involved in digestion (glycosidases, esterases, and peptidases) were investigated histochemically in the digestive tract in order to localize the sites of absorption and the sites of protein and carbohydrate digestion. An explicative model of the different stages of digestion is proposed.
Tipo: Text
Palavras-chave: Crassostrea gigas; Bivalvia; Cytology; Histochemistry; Histology; Digestive system; Enzymatic activity; Digestive glands; Digestion; Enzymes; Transit digestif; Digestion; Huitre; Crassostrea gigas.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1179.pdf

Implantation et survie de Campylobacter jejuni/coli chez la moule Mytilus edulis
Provedor de dados: 5
Autores: Minet, Jacques; Sauvager, F; Cormier, M.
Illnesses due to marine bivalvia consumption are mostly associated with viruses as causative agents. In more than the half of cases, this agent remains unidentifies, nevertheless. So far as bacteria are concerned, Salmonella are found firstly. Campylobacters represent a major cause of gastrointestinal disease, with Salmonella, among humans. Whether campylobacteriosis may be acquired from shellfishes remains unclear. We undertook to comparatively appreciate the survival of Campylobacter jejuni/coli and Salmonella typhimurium in seawater and contaminated mussels. Bacterial enumerations where performes using microbial cultures and specific (with immunofluorescence) direct viable counts (of substrate responsive bacteria). During laboratory contamination...
Tipo: Text
Palavras-chave: Campylobacter coli; Campylobacter jejuni; Mytilus edulis; Bivalvia; Pathogenic bacteria; Seafood; Microbial contamination; Pollution effects; Bacteria; Sea water; Survival.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1606.pdf

Development of a reverse transcription-PCR-DNA enzyme immunoassay for detection of "Norwalk-like" viruses and hepatitis A virus in stool and shellfish
Provedor de dados: 5
Autores: Schwab, Kellogg; Neill, Frederick; Le Guyader, Soizick; Estes, Mary; Atmar, Robert.
Outbreaks of food- and waterborne gastroenteritis are being increasingly reported throughout the world. The analysis of environmental samples by ne,ver diagnostic techniques such as reverse transcription-PCR (RT-PCR) amplification of nucleic acid has begun to identify human enteric viruses (predominantly "Norwalklike" viruses [NLVs]) as the cause of many of these outbreaks. To streamline NLV detection from environmental samples such as shellfish, we have developed an RT-PCR-oligoprobe amplification and detection method using several new procedures that enable confirmed RT-PCR amplification and product detection in 1 day. The new steps include replacing reverse transcriptase and Tag polymerase with rTth polymerase, a heat-stable enzyme that functions as...
Tipo: Text
Palavras-chave: Bivalvia; Immuoessay; DNA enzyme; Reverse transcription PCR; Detection  method; Enteric virus.
Ano: 2001
URL: https://archimer.ifremer.fr/doc/2001/publication-1267.pdf

Comparative karyological study of cupped oyster species
Provedor de dados: 5
Autores: Leitao, Alexandra; Boudry, Pierre; Labat, Jean-philippe; Thiriot-quievreux, Catherine.
Chromosomes of six cupped oyster species were studied using karyometric analysis alter conventional Giemsa staining, and silver staining, Karyotypes of Crassotrea angulata (nine metacentric and one submetacentric chromosome pairs), C. sikamea (nine metacentric and one submetacentric chromosome pairs), C. virginica (eight metacentric and two submetacentric chromosome pairs), C, ariakensis (eight metacentric and two submetacentric chromosome pairs), C, gasar (six metacentric and four submetacentric chromosome pairs), and Saccostrea commercialis (eight metacentric and two submetacentric chromosome pairs) are distinguishable by the number and position of the submetacentric chromosome pair and by the location of nucleolus organizer regions, Comparative...
Tipo: Text
Palavras-chave: Bivalvia; Cytotaxonomy; Karyotype; Chromosome; Cupped oyster.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/publication-2737.pdf

Bilan d'étude sur la croissance de la moule (Mytilus edulis) sur bouchots et filières dans les Pertuis Charentais entre 2000 et 2005 (Réseau REMOULA)
Provedor de dados: 5
Autores: Robert, Stephane; Soletchnik, Patrick; Le Moine, Olivier; Zanker, Sebastien.
En France, dans les pertuis Charentais plusieurs travaux de recherche ont été réalisés sur la moule (Mytilus edulis) dans les années 80 et 90 (1), (2), (3) 1. Ce n’est qu’en 1999 et 2000 que le programme européen Essence(2) a permis une comparaison entre l'élevage sur filières et l'élevage sur bouchots. Cette comparaison a mis en évidence une différence de croissance en partie liée au temps d'émersion des moules élevées sur bouchot (4), (5). Suite à ces résultats, la profession, représentée par les SRC de Ré Centre Ouest, et la Section Régionale Conchylicole Poitou- Charentes demande à Ifremer de mettre en place un réseau de suivi "biologique" dans les Pertuis Charentais.
Tipo: Text
Palavras-chave: Bivalvia; Mytilus edulis; Croissance; Pertuis Charentais; Technique élevage; Bouchot.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/00084/19487/17108.pdf

Calcein staining of calcified structures in pearl oyster Pinctada margaritifera and the effect of food resource level on shell growth
Provedor de dados: 5
Autores: Linard, Clementine; Gueguen, Yannick; Moriceau, Jacques; Soyez, Claude; Hui, Belinda; Raoux, Aurore; Cuif, Jean Pierre; Cochard, Jean-claude; Le Pennec, Marcel; Le Moullac, Gilles.
Marine mollusc shell growth has been widely measured using fluorochrome marking. In order to test the efficiency and reliability of calcein staining on P. margaritifera shells and pearls, the present study examined two administration methods, different concentrations and several immersion times.Immersion in a 150 mg.L-1 calcein solution for 12 h to 24 h appeared to be the best method for marking P. margaritifera shells. For pearl marking, injection of a 200 mg.L-1 calcein solution into the pearl pouch was the optimal method. Calcein marking was then used to measure the influence of food resource levels on the shell growth. Groups of 23-month-old P. margaritifera were fed at three trophic levels for two months. The two highest food levels tested (6 000...
Tipo: Text
Palavras-chave: Bivalvia; Pearl; Shell; Growth; Scanning electron microscope.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00028/13907/11195.pdf

Impact on non target organisms of anti-marine wood-borer treatments. Evaluation of stress imposed by treatments on organisms from test sites
Provedor de dados: 5
Autores: Goulletquer, Philippe; Geairon, Philippe; Faury, Nicole; Razet, Daniel; Soletchnik, Patrick; Gras, Paul; Adessi, L.
In European waters, significant economic damages to wooden structures are caused by bivalves molluscs and crustaceans. Treatments like copper-chrome-arsenic mixtures (CCA) were designed to prevent settlement of these wood borer species. However, limited and conflicting evidence regarding the toxicity to non-target organisms are available in the literature. This report aims to provide insights regarding the CCA leachates' toxicity to an important aquaculture species, the blue mussel Mytilus edulis for which much information on normal and stressed physiology is available for purposes of comparisons. The mussels are usually considered as a particularly suitable species for biological monitoring (Smaal and Widdows, 1994). To address the CCA leachate issue, two...
Tipo: Text
Palavras-chave: Bivalvia; Mussel; Mytilus edulis; Copper-chrome-arsenic (CCA); Treatment; Feeding; Absorption.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00043/15437/12788.pdf

Trophic relationships between benthic or planktonic microphytes and infaunal bivalve molluscs
Provedor de dados: 5
Autores: Plantecuny, M; Bodoy, Alain.
In order to estimate energetic relationship, microphytic and benthic bivalve levels of a shallow (1.5 m), sandy ecosystem near Marseille (Gulf of Fos, Southern France) were sampled monthly during 1.5 year, in two sites differing by their wave exposure. In the sheltered area, the bivalve Ruditapes decussatus was the dominant species, while another bivalve, Donax trunculus , was found in the open, wave exposed site. Chlorophyll a and primary production of the phytoplankton and the microphytobenthos, as well as population dynamic, growth and biochemical composition of bivalves (lipids, proteins and carbohydrates) were monitored.
Tipo: Text
Palavras-chave: Ruditapes decussatus; Bivalvia; Periphyton; Phytoplankton; Biochemical composition; Growth; Marine molluscs; Hydrodynamics; Seasonal variations; Primary production; Trophic relationships.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/acte-1528.pdf

Etude ecophysiologique de quelques mollusques bivalves
Provedor de dados: 5
Autores: Riva, A; Masse, H.
Using an experimental flowing system, the filtration rate of Mytilus galloprovincialis, Ostrea edulis, Ruditapes decussatus and Ruditapes aureus has been measured by an indirect technique under Mediterranean thermal conditions in coastal open sea. The oxygen consumption and excretion rate of ammonia have been estimated and influence of temperature and salinity tested for M. galloprovincialis . The results are discussed and compared to literature data.
Tipo: Text
Palavras-chave: Ruditapes decussatus; Ostrea edulis; Mytilus galloprovincialis; Bivalvia; Respiration; Excretion; Oxygen consumption; Water filtration; Ecophysiology; Méditerranéee; Excrétion; Respiration; Filtration; Bivalves.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1177.pdf

Microarray-Based Identification of Gonad Transcripts Differentially Expressed Between Lines of Pacific Oyster Selected to Be Resistant or Susceptible to Summer Mortality
Provedor de dados: 5
Autores: Fleury, Elodie; Moal, Jeanne; Boulo, Viviane; Daniel, Jean-yves; Mazurais, David; Henaut, Alain; Corporeau, Charlotte; Boudry, Pierre; Favrel, Pascal; Huvet, Arnaud.
Summer mortality of the Pacific oyster Crassostrea gigas is the result of a complex interaction between oysters, their environment, and pathogens. Heredity appears to be a major factor determining the sensitivity of oysters to summer mortality, allowing resistant (R) and susceptible (S) lines to be produced. We conducted genome-wide expression profiling of R and S gonads during the 3-month period preceding a summer mortality event, using a cDNA microarray that we designed. ANOVA analysis revealed that 34 genes were differentially expressed between R and S lines on four dates preceding the mortality event. Annotation of some of these genes highlights reproduction and its allocation and antioxidant defenses as the main pathways that operate differentially...
Tipo: Text
Palavras-chave: Mollusca; Bivalvia; Gene expression; CDNA microarrays; Reproduction; Oxidative stress; Energy metabolism.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00005/11590/8258.pdf

Croissance de l'huitre japonaise Crassostrea gigas en cylindre rotatif Stanway. Premiers resultats en France
Provedor de dados: 5
Autores: Robert, Rene; Maurer, Daniele.
A new method of oyster cultivation, the Stanway oyster cylinder, has been experimented in the basin of Arcachon since the autumn of 1989. The first observations on three species of juvenile bivalves showed that this system could be successfully used with the Japanese oyster Crassostrea gigas . A comparative study of the growth of this last species, reared in cylinders and oyster bags, has been carried out since spring 1990. The first results showed that the growth of juveniles and 18 months old oysters in cylinders is not as good as in bags. On the other hand, mortality did not differ between both techniques: less than 3%. This new system seems to be less efficient than the traditional French way of rearing oysters. However, an improvement in the quality...
Tipo: Text
Palavras-chave: Crassostrea gigas; Bivalvia; Juveniles; Oyster culture; Growth; Rearing.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-917.pdf

L'unite d'ecophysiologie et de molysmologie larvaire des bivalves d'interet commercial du laboratoire I.S.T.P.M. d'Arcachon.
Provedor de dados: 5
Autores: Robert, René; His, Edouard; Maurer, Danièle.
An experimental hatchery for bivalves and the different techniques used in Arcachon are described: sea water treatment, phytoplankton culture, conditionning of oysters for spawning and larval culture. This experimental unit has been organised to study the reasons why natural reproduction is disturbed in the bay. The quality of the oysters and the sea water was analysed to ascertain their capacity to acquire normal oyster development. Also, the influence of different micropollutants which may disturb the environment were studied. Observations during larval stage at various concentrations of chemicals include: percentages of fertilized eggs; percentage of D larvae former; percentages of normal and surviving larvae, larval growth, establishing growth curves...
Tipo: Text
Palavras-chave: Bivalvia; Experimental research; Hatcheries; Larval development; Sexual reproduction; Oyster culture; Research programs.
Ano: 1981
URL: http://archimer.ifremer.fr/doc/1981/publication-1894.pdf

Campagne d'évaluation du stock de palourdes du bassin d'Arcachon - Année 2006
Provedor de dados: 5
Autores: Caill-milly, Nathalie; Duclercq, Benoit; Morandeau, Gilles.
Between 1980 and 1986, some Arcachon oyster farmers took up breeding the Japanese clam on the foreshore (Robert et Deltreil, 1990). This production was short lived. The steep fall in prices due to economic competition from Spain, Portugal, Italy and Tunisia, predator action such as the trigger fish (Popovsky et al., 1999), added to the significant amount of mortality that occurred in the summer and autumn of 1992 that affected two-thirds of the total stock, led to clam farming being abandoned at the end of the 1980s.  In the Arcachon basin, the Japanese clam (Ruditapes philippinarum) population, now natural to the area, has found favourable conditions for development and is expanding rapidly there. This species has been supplanting the local species...
Tipo: Text
Palavras-chave: Ruditapes philippinarum; Veneridae; Popluation structure; Biomass; Stock assessment; Arcachon Bassin; Veneridae; Ruditapes Philippinarum; Bivalvia; Mollusca; Structure Population; Biomasse; Abondance; Evaluation Stock.
Ano: 2006
URL: https://archimer.ifremer.fr/doc/2006/rapport-2218.pdf

Mesure de la retention de Skeletonema costatum par Ruditapes philippinarum (Mollusque, Bivalve) en fonction de la longueur des colonies algales: Principes methodologiques
Provedor de dados: 5
Autores: Sauriau, P; Baud, Jean-pierre.
Based on Coulter Counter data, a new method is proposed to study the influence of the polymorphous variability in size as well as in shape of the diatom species Skeletonema costatum on the physiological performances of the Manila clam Ruditapes philippinarum . Three conditions are required in order to convert volumetric data determined with the Coulter Counter into metric data, i.e. (1) stability of the pervalvar diameter of the diatom chains, (2) statistical independence between length and pervalvar diameter of the diatom chains, and (3) negligible level of coincident passages through the aperture orifice. Under these three conditions, the mean length (l) of a S. costatum chain can be related to the mean pervalvar diameter (d) of diatom chains and to the...
Tipo: Text
Palavras-chave: Bivalvia; Skeletonema costatum; Bacillariophyceae; Algae; Physiology; Biopolymorphism; Counters; Size; Size distribution; Feeding; Nutrition.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1670.pdf

Toward reference intervals for shellfish: An illustrative case of feeding and respiratory activities in the Pacific cupped oyster,   Crassostrea gigas
Provedor de dados: 5
Autores: François, Cyrille; Haure, Joel; Billy, Jean-christophe; Renault, Tristan.
Background The Quality Assurance and Laboratory Standards Committee of the American Society for Veterinary Clinical Pathology and the guidelines of the Clinical and Laboratory Standards Institute provide a framework for establishing reference intervals of physiological parameters in reputedly healthy individuals, humans, and terrestrial animals, respectively. This framework was applied for the first time to the Pacific cupped oyster, Crassostrea gigas. Reference intervals (RIs) would, first, be of interest for research purposes, including pathophysiology studies. RI determination is the first step before considering the use of RIs for field applications by farmers and marine shellfish health services. Objectives The purpose of this study was to propose...
Tipo: Text
Palavras-chave: Bivalvia; Clearance rate; Health; Ostreidae; Oxygen consumption rate; Reference values.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00627/73913/73286.pdf

Effects of temperature abuse on survival ofVibrio vulnificus in oysters
Provedor de dados: 5
Autores: Murphy, S; Oliver, J.
Of the several bacterial diseases which may result from consumption of shellfish, those caused by marine bacteria of the genus Vibrio are the most abundant. In the United States, up to 10,000 non-fatal cases per year are estimated to be caused by the various members of this genus. More than 95% of all deaths in the United States which result from seafood consumption are caused by a single bacterium, Vibrio vulnificus. The bacterium is a normal inhabitant of estuarine waters, and occurs naturally in especially high numbers in molluscan shellfish. Infections following consuption of raw or undercooked shellfish, especially oysters, result in fatality rates of over 60%. Because most oysters in the United States are transported large distances before marketing,...
Tipo: Text
Palavras-chave: USA Coasts; Vibrio cholerae; Vibrio vulnificus; Crassostrea virginica; Bivalvia; Bacteria; Temperature effects; Food technology; Fish poisoning; Oyster culture.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1622.pdf

Some aspects of the abnormal mortalities of the pearl oysters, Pinctada margaritifera in the Tuamotu Archipelago, (French Polynesia)
Provedor de dados: 5
Autores: Cabral, P.
The black-lip pearl oyster Pinctada margaritifera lives and reproduces with high performance in most of Tuamotu Lagoons. Technics to collect spats, to culture juveniles and to operate oysters were quickly found and applicated. Nevertheless, the sudden rise of this activity has been correlated with an anarchic development. For instance, large occupation of areas in the lagoons, cultivation of numerous oysters in confined areas, lack of knowledge on the basis culture technics in many farms. In 1985, mass mortalities have appeared in some lagoons and 50 to 80% of cultured stock died. Some investigations have been done but no explanation was found. In 1988, the mortalities are still very high. An analysis of cooperative production results from 1979 to 1988...
Tipo: Text
Palavras-chave: Pinctada margaritifera; Bivalvia; Spat; Juveniles; Oyster culture; Reproduction; Pearl culture; Pearl oysters; Mortality.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1484.pdf

Developpement des veligeres de Crassostrea gigas dans le bassin d'Arcachon. Etudes sur les mortalites larvaires.
Provedor de dados: 5
Autores: His, Edouard; Robert, Rene.
Experiments in the hatchery rearing of C. gigas larvae showed that: the antifouling paints represent a real danger for spatting areas; the larvae of Arcachon breeding stocks grown in the seawater taken from the Bay develop normally in the laboratory; and, the growth of the larvae, collected from the Bay of Arcachon and reared in hatchery at 18 degree C, confirms that the last summer temperature regimes could not explain the abnormalities. It also confirms the good quality of the seawater of the bay for C. gigas reproduction.
Tipo: Text
Palavras-chave: Crassostrea gigas; Bivalvia; Environmental effects; Veligers; Oyster culture.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/publication-1835.pdf

Fine cytochemical localization of lysosomal organelles in phagocytic cells of bivalve molluscs.
Provedor de dados: 5
Autores: Auffret, Mathieu; Diouris, M; Herry, A.
Bivalve molluscs possess several types of hemolymph cells (hemocytes), involved in internal defense and other physiological functions. Studies in pathological and experimental conditions have shown their micro- and macrophagic ability. However, the mechanisms of intracellular digestion are incompletely known in these organisms. The lysosomal apparatus of hemocytes was therefore investigated in several species by hydrolase localization with the electron microscope. The cytoplasmic granules of granulocytes displayed a strong acid beta -glycerophosphatase activity. Previous observations had shown that these granules may contain phagocytized material. This indicates that intracellular digestion is achieved in these organelles. Acid beta -glycerophosphatase...
Tipo: Text
Palavras-chave: Bivalvia; Phagocytosis; Cells; Ultrastructure; Haemolymph.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1631.pdf

Presence of Salmonella in shellfish in the Thau lagoon
Provedor de dados: 5
Autores: Angeli, J.
After a general presentation of the Thau lagoon together with its geographic location, socio-economic activities linked to shellfish culture and fishing, this paper investigates the health conditions of the shellfish harvesting areas. I he influence of heavy rainfall following a prolonged drought period is underlined as a determining factor of the momentary bacterial pollution in the harvesting areas, leading to a suspension of sales based on analyses relying solely on the detection of faecal coliforms. As of 1989, bacteriological monitoring was reorganized in the form of a data collection network taking into consideration environmental assessments of water quality as well as shellfish hygiene in order to protect consumer health. Its extension to the...
Tipo: Text
Palavras-chave: Salmonella; Bivalvia; Surveillance and enforcement; Mollusc culture; Health and safety; Epidemiology.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1589.pdf

Depuration: An administrative overview
Provedor de dados: 5
Autores: Somerset, I.
At the 1964 National Shellfish Sanitation Workshop, Mr. Eugene Jensen presented a thought-provoking paper outlining the rationale for the depuration of shellfish. Mr. Jensen noted that "we are committed to the principal that shellfish must be as safe to eat as other ordinary food" and that "the problems of assuring the sanitary quality of coastal areas will increase rather than diminish. This is not the same as saying that pollution will increase" (Jensen, 1964). It is recognised that additional use of the waters and shore areas will have adverse impacts on the water quality and shellfish resource quantity and quality. If we are to maintain a program which will permit the consumer to eat shellfish in any form they choose, we must develop the means to...
Tipo: Text
Palavras-chave: France; Bivalvia; Shellfish; Water quality; Legislation; Pollution control; Self purification; Public health.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1590.pdf

Trophic relationships gonad-intestinal loop in Pecten maximus .
Provedor de dados: 5
Autores: Lepennec, M; Dorange, G; Beninger, P; Donval, A; Widowati, I.
Histological, histochemical and ultrastructural studies were performed on the region of the gonad traversed by the intestine in Pecten maximus . The results indicate a digestive and absorptive function of intestine epithelial cells and a transfer of metabolites to the surrounding gonad tissue. Several possible mechanisms of translocation are presented, including diffusion into the haemolymph and transfer via vacuolated cells of the gonad interstitial connective tissue.
Tipo: Text
Palavras-chave: Pecten maximus; Bivalvia; Histology; Haemolymph; Histochemistry; Cells; Metabolites; Epithelia; Intestines; Ultrastructure; Animal reproductive organs.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1668.pdf

Impact de la dissémination accidentelle d'huîtres tétraploïdes : potentiel de dispersion et succès reproducteur
Provedor de dados: 5
Autores: Lapegue, Sylvie; Heurtebise, Serge; Cornette, Florence; Brizard, Raphael; Sharbel, Tim; Boudry, Pierre.
L'ostréiculture française réalise une production très largement extensive, basée sur le recrutement de juvéniles dans le milieu naturel et la production sur des sites côtiers. Ainsi, l’huître est l’une des rares espèces cultivées à être encore considéré par le consommateur comme un produit alimentaire totalement « naturel ». L'utilisation de la polyploïdisation a permis d'ouvrir une nouvelle voie dans cette filière, en permettant d'obtenir des animaux à croissance plus rapide, plus homogènes et stériles. Cette dernière caractéristique est un gage de qualité gustative et permet aussi de positionner ce produit en priorité sur les mois en "r" traditionnellement bannis à cause de la présence de laitance. Le but principal de la triploïdisation a été atteint:...
Tipo: Text
Palavras-chave: Génétique; Triploïdisation; Tétraploïde; Impact; Environnement; Bivalvia; Crassostrea gigas.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/00043/15460/12835.pdf

Evolution de la biomasse de mollusques en elevage dans l'etang de Thau de 1980 a 1984.
Provedor de dados: 5
Autores: Hamon, Pierre-yves; Tournier, Henri.
Since 1980, the IFREMER research laboratory "Resources Aquacoles", Sete (France), follows during the summer period, the evolution of the commercial stocks of molluscs (mussels and oysters) reared in Thau Lagoon. The data for this estimation are collected, on one hand, by surface observations and, on the other hand, by diving observations. During the years 1980 to 1984, the authors noticed an increase of oyster biomass, during the same period the mussel biomass decreased. The different simulations used to know the total filtration and the biodeposit, have shown that the impact of the increase of the total biomass is not so important as it could be feared.
Tipo: Text
Palavras-chave: Bivalvia; Marine mollusks; Stock assessment; Population density; Biomass.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/publication-1787.pdf

Localisation immunohisto chimique de peptides apparentes aux hormones de vertebres chez Pecten maximus
Provedor de dados: 5
Autores: Donval, A.
Substances related to vertebrate peptidic hormones have been searched by immunohistochemical methods in Pecten maximus . Neurosecretory cells have been detected in the nervous ganglia with antisera raised against vertebrate hormones, gastrin/CCK like, glucagon like, insuline like, somatostatine like. Other gastro-intestinal hormones like are localized in some cells of the gut epithelium: bombesine and vasoactive intestinal peptide.
Tipo: Text
Palavras-chave: Pecten maximus; Bivalvia; Immunology; Histochemistry; Cells; Neurosecretory system; Juveniles; Hormones.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1724.pdf

Viral depuration of Mytilus galloprovincialis in ozone treated water
Provedor de dados: 5
Autores: Croci, L; Demedici, D; Franco, E; Gabrielli, R; Dipasquale, S; Toti, L.
The depuration effectiveness of Poliovirus 1 and HAV contamined mussels, when subjected to flowing ozonized water, was evaluated. Mussels were experimentally contamined and then depurated up to 72 hours using a pilot depuration system with ozone treated and untreated water. The results showed that viral infectivity titter decreased more rapidly in mussels subjected to ozonized water (from 10 super(4) TCID50 to 10 super(1.5) TCID50 per ml of Poliovirus 1 but in the following period it remained unchanged. Also HAV was detected in the mussels after 72 h of depuration.
Tipo: Text
Palavras-chave: Mytilus galloprovincialis; Bivalvia; Ozonation; Ozone; Viral diseases; Marine molluscs; Self purification.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1610.pdf

Innovative rapid solid-phase immunobead assay for the detection of okadaic acid and related DSP toxins in shellfish
Provedor de dados: 5
Autores: Park, D; Fremy, J; Marcaillou, L; Gamboa, P; Gleizes, E; Masselin, P; Goldsmith, C.
The solid-phase immunobead assay (Ciguatect super(TM)) has been optimized to detect toxins associated with diarrheic shellfish poisoning (DSP). The Ciguatect super(TM) test kit utilizes a membrane to bind the toxins and a monoclonal antibody-latex bead solution as the determination step. The presence or absence of okadaic acid (OA) and related toxins is determined by binding the toxins to a membrane attached to a plastic strip and exposing the toxins ladened membrane to a monoclonal antibody-colored latex bead complex which has a high specificity for OA and related polyether compounds. The intensity of the color on the membrane denotes the presence of the toxins. A rapid extraction method (REM super(TM)) has been developed to allow for confirmation of...
Tipo: Text
Palavras-chave: Dinophysis; Bivalvia; Algae; Marine molluscs; Immunology; Bioassays; Disease detection; Biological poisons; Shellfish.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1604.pdf

Relations trophiques entre huitre et milieu; influence de la concentration et de la taille des particules
Provedor de dados: 5
Autores: Filia, M; Copello, M; Colomines, J.
At 15 degree C, different concentrations of Phaeodactylum tricornutum are given to Crassostrea gigas . Ingestion, filtration, respiration, ammonia excretion have been measured. All ecophysiological response, except dissolved excretion, are dependent of food concentration. Energy balances have been determined and selectivity of particle size observed.
Tipo: Text
Palavras-chave: Crassostrea gigas; Bivalvia; Phaeodactylum tricornutum; Algae; Diets; Excretion; Respiration; Water filtration; Ingestion; Particle size; Energy balance; Food availability; Ecophysiology; Bilan énergétique; Ecophysiologie; Huître.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1178.pdf

Resultats d'une intervention sur une parasitose a Proctoeces maculatus (Trematoda, Digenea) affectant la mytiliculture de l'ouest Cotentin
Provedor de dados: 5
Autores: Lebreton, J; Lubert, P.
In 1983, the parasitism of Mytilus edulis L. by Proctoeces maculatus (Loose, 1901) Odhner, 1911 (Trematoda, Digenea, Fellodistomatidae), was recorded for the first time by the authors from mussels farming on stakes (Western Cotentin). After analysing the distribution of the prevalence on the shore and bibliographical data, it was suggested that this parasite must follow a biological cycle that had never been observed on the French coasts and that the most probable host of eggs producer - adult or progenetic metacercaria - would not be a fish but the Prosobranch Gasteropod Nucella lapillus . This was confirmed in 1987. This discovery enabled the authors to support a campaign of eradication of this mussels predatory mollusc. In 1990, the parasitism has...
Tipo: Text
Palavras-chave: Proctoeces maculatus; Trematoda; Mytilus edulis; Bivalvia; Parasitology; Parasitism; Parasitic diseases; Mussel culture.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-922.pdf

Etudes pathologiques et epidemiologiques des lesions parasitaires chez Ostrea edulis : Premiers resultats d'un recherche prospective comparative chez les principales especes de mollusques des zones ostreicoles de Bretagne nord
Provedor de dados: 5
Autores: Poder, M; Auffret, Mathieu; Balouet, G.
This paper is a contribution to the study of the Bonamia ostreae epizooty in french european oyster Ostrea edulis : parasite process (hemocytic parasitosis); experimental contaminations on parks and in tanks. First results of an epidemiological watch conducted in oyster culture sites show in molluks mytilidae, pectinidae, cardiidae, veneridae: the absence of Bonamia ostreae forms; the existence of different types of parasitism or commensalisus of inequal pathological importance and especially a parasite of the Marteilia genus in Tapes sp . digestive epithelium. Additionally, a new example of hemocytosercoma is observed in Cerastoderma edule .
Tipo: Text
Palavras-chave: Ruditapes philippinarum; Tapes rhomboides; Tapes pullastra; Mytilus edulis; Cerastoderma edule; Ostrea edulis; Bivalvia; Marteilia; Bonamia ostreae; Comparative studies; Parasitic diseases; Commensalism; Parasitology; Marine mollusks; Epidemiology; Pathology; Pathologie; Mollusques; Bonamia ostreae; Epizootie; Ostrea edulis.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1182.pdf

Etude cytologique de la gamétogenèse, de la sex-ratio et du cycle de reproduction chez l'huître perlière Pinctada margaritifera (L) var. cumingii (Jameson), (mollusques, bivalves). Comparaison avec le cycle de Pinctada maculata (Gould)
Provedor de dados: 5
Autores: Thielley, Maryse.
The population of Pinctada margaritifera and Pinctada maculata lay eggs throughout the year. Temperature variations induce huge but asynchronous laying. Preferential periods of gonad maturity correspond to the season changings in both species. However. some differences between the two specics are noticed. Both species are protandric hermaphrodites. Female condition is unstable: a reversion to the male condition may be observed and is probably linked with stress. The average size for the first sexual maturation as weil as for sexual conversion are specified in P. margaritifera. The breeding conditions induce modifications in some reproductive cycle processes (maturation, sex-ratio). Some conditions suitable for reproduction may become unfavorable to...
Tipo: Text
Palavras-chave: Gamétogenèse; Cycle de reproduction; Sex-ratio; Pinctad margaritifera; Mollusque; Bivalve; Huître perlière; Gametogenesis; Reproductive cycle; Sex-ratio; Pinctada margaritifera; Mollusca; Bivalvia; Pearl oyster.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00440/55208/56677.pdf

Impact on non target organisms of anti-marine wood-borer treatments. Evaluation of stress imposed by treatments on organisms form test sites - Final Report
Provedor de dados: 5
Autores: Goulletquer, Philippe; Geairon, Philippe; Faury, Nicole; Razet, Daniel; Soletchnik, Patrick; Adessi, L.; Gras, Paul.
Experiments were canied out to assess the copper-chrome-arsenic (CCA) trealment effeets on the Blue mussel Mytilus edulis physiology. Experimental design included two complementary approaches: 1) scope for growth esrimates based upon the energy balance between respiration energy loss and energy gained from feeding processes. 2) a biological early waming system for valve behavior monitoring under CCA exposures. Various temperature range (seasonal effeet). physiological status (mature &amp; immature mussels) as weil as CCA concentrations (from 0 to 48kg/m3) and rime exposure were tested. Significant monality rates for the experimental mussel populations were recorded in alI experimental modalities but the 2kg/m3 CCA treatment concentration. Overall results...
Tipo: Text
Palavras-chave: Bivalvia; Mussel; Mytilus edulis; Copper-Chrome-Arsenic (CCA); Treatment; Feeding; Absorption.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00077/18795/16372.pdf

Reproduction de l'huître creuse dans le bassin d'Arcachon, Année 2006
Provedor de dados: 5
Autores: Auby, Isabelle; Maurer, Daniele; Cassam Chenai, Yoann; Tournaire, Marie-pierre; Neaud-masson, Nadine; Rumebe, Myriam; Cantin, Christian; Debort, Henriette; Germain, Jean-marie; Navarro, Romuald.
Introduction: During each summer season, the IFREMER laboratory of Arcachon monitors, within the framework of the agreement with the Arcachon- Aquitaine Shellfish Farming Regional Section (SRC), the reproduction of cup oysters in the Arcachon basin.  This monitoring has as its goal to furnish oyster farmers with the information needed to implement spat catches: - dates and size of egg clutches, - larvae development rate, - presence in the environment of more evolved stages (close to fixation).  Reproduction was monitored between mid-June and mid-September, plankton was fished four times per week at the various sites representative of the basin. Oyster larvae at various stages are enumerated there.  At the end of the reproductive season (September to...
Tipo: Text
Palavras-chave: Crassostrea gigas; Larvae collection; Spat oyster; Larvae development; Reproduction; Arcachon Bassin; Ostreidae; Crassostrea Gigas; Bivalvia; Mollusca; Aquaculture; Naissain; Captage Larve; Developpement Larvaire; Maturation; Reproduction.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/rapport-2216.pdf

Évaluation des potentialités de l'IRM pour la recherche sur la Physiologie des Bivalves Premiers résultats anatomiques et perspectives
Provedor de dados: 5
Autores: Pouvreau, Stephane; Davenel, A; Quellec, S; Rambeau, M.
Nuclear Magnetic Resonance (NMR) is increasingly used in biology and the appearance of imaging and structural and/or metabolic spectroscopy (MRI/MSR) platforms (Rennes, Strasbourg, Marseille...) devoted to this small animal shows the recent keen interest in these research techniques. However, to this day and to our knowledge, no approach of this style has been developed for sea molluscs and even less so for the cup oyster, Crassostrea gigas. Because of its economic importance, this bivalve mollusc is the subject of much research in physiology, to the point of becoming, at IFREMER, a biological model for marine invertebrates. Nonetheless, most of the methodologies developed for studying it are destructive, which (1) prevents individual follow-up, (2)...
Tipo: Text
Palavras-chave: Nuclear Magnetic Resonance; Anatomy; Biometry; Physiology; Bivalvia.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/rapport-1560.pdf

Valeur Nutritive et Valeur Thérapeutique de l'Huître
Provedor de dados: 5
Autores: Le Gall, Jean Victor.
Tipo: Text
Palavras-chave: Ostreidae; Nutritive value; Biology; Ostreidae; Ostrea; Bivalvia; Therapie; Biologie; Nutrition.
Ano: 1948
URL: http://archimer.ifremer.fr/doc/1948/publication-2204.pdf

Herpèsvirus infectant les bivalves marins : détection, génome et transmission
Provedor de dados: 5
Autores: Arzul, Isabelle.
Since 1991, high mortality rates of larvae and juveniles of different bivalve mollusc species associated with herpesvirus infections have been reported in different countries. The aim of this study was to determine if more than one helpesvirus species was responsible for these infections or just one species exhibiting polymorphism. The investigations concentrated on the analysis of the virus genome, studies of virus transmission in different mollusc species and on the potential role of bivalve adults in the occurrence of infections. The analysis of various target sequences within the virus genome present in infected larvae samples demonstrated the presence of polymorphism. More notably a variant of the virus was identified and the variation appears...
Tipo: Text
Palavras-chave: Herpèsvirus; Bivalves; Transmission; Polymorphisme; OsHV-1; Diagnostic; Herpesviruses; Bivalvia; Transmission; Polymorphism; OsHV-1; Diagnostic.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00105/21675/19253.pdf

Caracterisation des hemocytes d''un mollusque bivalve marin, la nacre, Pinna nobilis L. 1758
Provedor de dados: 5
Autores: Henry, M; Vicente, N; Houache, N.
The study of tinctorial affinities, in vitro behaviour and ultrastructure of the hemocytes of Pinna nobilis allows us to group them into two main families: basophilic, neutrophilic and acidophilic granulocytes; hyalinocytes, three categories can be distinguished among these cells: small hyalinocytes, hyalinocytes containing smooth endoplasmic reticulum and the macrophage population. The hemocytes participate in the regulation of metabolism by the storage and degradation of glycogen. They contribute to the detoxification process by the sequestration of mineral elements in their lysosomes. Their role in antibacterial defense is suggested by their bacterian phagocytic activity.
Tipo: Text
Palavras-chave: Pinna nobilis; Bivalvia; Haemolymph; Animal metabolism; Marine molluscs; Ultrastructure.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1711.pdf

Reproduction et recrutement de la coque Cerastoderma edule L. a Saint-Pol-de-Leon (Bretagne Nord)
Provedor de dados: 5
Autores: Guillou, Jean-louis; Tartu, C.
Investigation on the recruitment of Cerastoderma edule was carried out at St-Pol-de-Leon over three years. This approach is intended to disclose in the fluctuations of recruitment the part of variability linked with reproduction and spawning. Stages of sexual maturity are used together with a condition index. The reproductive activity spread out over the most part of the year, ripe individuals being observed even in winter. Main spawning took place in summer and autumn. Seasonal and interannual fluctuations of recruitment are associated with the variations of the condition index. An increase of the reproductive activity could be observed between 1987 and 1989 related with temperature. It is shown that this factor is the main responsible of the variations...
Tipo: Text
Palavras-chave: Cerastoderma edule; Bivalvia; Marine molluscs; Temperature effects; Recruitment; Seasonal variations; Sexual maturity; Reproductive cycle; Spawning; Sexual reproduction.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1719.pdf

Bilan energetique d'une population naturelle de Crepidula fornicata dans le bassin de Marennes-Oleron
Provedor de dados: 5
Autores: Deslous-paoli, Jean-marc; Heral, Maurice; Masse, H.
An energy budget has been evaluated for a natural population of Crepidula fornicata living at low water of spring tides in the oyster farming basin of Marennes-Oleron. This budget of production was estimated according to the position along the chain. The average biomass for an individual representative of the population was equivalent to 1.87 Kjoules, and the annual consumption C was 20.08 Kjoules/year. The energy budget expressed in percent of energy consummates was: C = Pg + Pr + Ps + R + F; 100 = 4.6 + 1.6 + 0.8 + 48 + 45. This budget is compared with literature data on other herbivorous gastropods and with those calculated for Crassostrea gigas in the same locality.
Tipo: Text
Palavras-chave: Bivalvia; Crepidula fornicata; Seasonal variations; Population structure; Energy budget; Bassin de Marennes Oléron; Bilan énergétique; Crepidula fornicata.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1181.pdf

Vibrio aestuarianus subsp. cardii subsp. nov., pathogenic to the edible cockles Cerastoderma edule in France, and establishment of Vibrio aestuarianus subsp. aestuarianus subsp. nov. and Vibrio aestuarianus subsp. francensis subsp. nov.
Provedor de dados: 5
Autores: Garcia, Celine; Mesnil, Aurelie; Tourbiez, Delphine; Moussa Pouly, Mirna; Dubreuil, Christine; Gonçalves De Sa, Amélie; Chollet, Bruno; Godfrin, Yoann; Dégremont, Lionel; Serpin, Delphine; Travers, Marie-agnes.
Cockle mortality events have been reported in northern France since 2012. In the present study, we describe and investigate the implication of a potential bacterial causative agent in cockle mortality. Bacteria isolated from five different cockle mortality events were characterized and studied. Using phenotypic analysis combined with DNA–DNA hybridization (DDH) and whole genome sequencing, the isolates were shown to belong to Vibrio aestuarianus , a species regularly detected in France during oyster mortality events. Comparison of the strains from cockles with strains from French oysters and the type strain showed that the strains from cockles were genetically different to those from oysters and also different to the V. aestuarianus type strain. Moreover,...
Tipo: Text
Palavras-chave: Bacterial pathogen; Bivalvia; Cockle; Mortality; Shellfish; Vibrio aestuarianus.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00677/78893/81195.pdf

La densite, un critere de qualite applicable en ecloserie aux embryos de Pecten maximus (mollusque bivalve)
Provedor de dados: 5
Autores: Faure, Catherine; Devauchelle, Nicole; Dorange, Germaine.
The quality of the scallop embryos is determined by the spawners characteristics as well as by the external factors they support during the maturation and the spawning phases. All these parameters are not still well controlled during the artificial conditioning in the hatcheries. As a consequence, the quality of the embryos is drastically variable and with them, the larvae performances in terms of survival and growth rates. It would be interesting to get a simple and quick test which would allow the estimation of the spawns quality. The embryos density, evaluated by isopycnic centrifugation of Percoll medium, is well adapted to this objective. Actually, a centrifugation of embryos two hours after fertilization separates them in 3 stratum with their density...
Tipo: Text
Palavras-chave: Pecten maximus; Bivalvia; Quality; Survival; Larvae; Growth; Sexual maturity; Spawning populations; Spawning; Embryos; Hatcheries.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-915.pdf

Center for Independent Experts (CIE) Review of the Status of the Eastern Oyster (Crassostrea virginica)
Provedor de dados: 5
Autores: Goulletquer, Philippe.
NOAA’s National Marine Fisheries Services (NMFS) received a petition to list the Eastern oyster (Crassostrea virginica) as either threatened or endangered under the Endangered Species Act (ESA). The Eastern oyster is an emblematic species in the US coastal states, playing a significant role at various levels: shaping coastal social communities, providing a commercial activity (public fishery &amp; aquaculture) and recreational - amenity benefits, and as a keystone species in highly diverse and sensitive ecosystems (estuaries). This petition is likely the result of concerns regarding the partial collapse of public fisheries in several states as well as from the resulting damages to this species induced by severe hurricanes. A Biological Review Team (BRT)...
Tipo: Text
Palavras-chave: Biology; Habitat threats; Predation; Disease; Bivalvia; Crassostrea virginica; Oyster; Recommendations.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/00043/15458/12833.pdf

Diseases of cultured molluscs in Australia
Provedor de dados: 5
Autores: Lester, R.
Three mollusc species are cultured commercially in Australian tropical and warm temperate waters: the Sydney rock oyster Saccostrea commercialis , the pearl rock oyster is susceptible to two protozoans: Marteilia sydneyi , which is the cause of QX Disease and infects oysters during the summer; and Mikrocytos roughleyi which is associated with winter mortality. It also harbours mudworm, Polydora websteri a parasite farmers try to avoid by growing oysters on racks. Transported pearl oysters Pinctada maxima die with heavy infections of Vibrio harveyi . Cultured giant clams Tridacna gigas are pestered by pyramidellid snails and some carry Perkinsus sp., a protozoan common in reef bivalves. Deaths in mollusc hatcheries have been associated with Vibrio tubiashi...
Tipo: Text
Palavras-chave: Protozoa; Alteromonas; Vibrio tubiashi; Perkinsus; Vibrio harveyi; Polydora websteri; Mikrocytos roughleyi; Saccostrea commercialis; Pinctada maxima; Tridacna gigas; Bivalvia; Parasites; Mortality; Pearl culture; Infectious diseases; Parasitic diseases.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1468.pdf

Essais de decontamination des huitres Crassostrea gigas en bassin par renouvellement et circulation de l''eau
Provedor de dados: 5
Autores: Faury, Nicole; Masson, Daniel; Ratiskol, Jacqueline.
The germs decreasing of artificially contaminated oysters Crassostrea gigas has been studied in experimental tanks similar to a shellfish depuration plant, without any chemical or physical water treatment. The oyster were treated by three different water management pattern, compared to a control tank and the germs decreasing studied by MPN method of fecal Coliforms and Streptococus. As a result: 1) it appaears somewhat difficult to conclude in this first attempt about the most efficient treatment. 2) the most important factor in shellfish depuration working is obviously the physiological activity (and stage) of the animals.
Tipo: Text
Palavras-chave: Crassostrea gigas; Bivalvia; Methodology; Raceway culture; Recirculating systems; Water management; Oyster fisheries; Marine molluscs; Shellfish; Tanks; Self purification.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1611.pdf

Viral contamination and depuration of oysters under field conditions
Provedor de dados: 5
Autores: Boher, S; Piclet, Guy; Beril-stien, S; Masson, Daniel; Delonce, R; Biziagos, E; Schwartzbrod, L.
Shellfish consumption is clearly associated with the transmission of enteric viruses. The channel of transmission of enteric viruses to human beings could be decreased particularly if the systems of depuration of shellfish were optimized, standardized and if their viral efficiency was controlled. The purpose of this work was to study the contamination of oysters and to assess the efficiency of several depuration processes. Our study have demonstrated that in some cases, 50% of oysters samples contain enteric viruses or H.A.V. antigen and the quantities of viruses range from 17 to 246 FF for the rotaviruses and from 124 to 200 for the enteroviruses per 100 g of tissue. According to our results, the exclusive use of a bacteriological criterium to determine...
Tipo: Text
Palavras-chave: Rotavirus; Hepatitis A virus; Enterovirus; Crassostrea gigas; Bivalvia; Seafood; Bioassays; Cell culture; Viruses; Self purification; Viral diseases; Shellfish.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1615.pdf

The behaviour of F specific bacteriophage in depurating shellfish with reference to their use as pollution indicator organisms
Provedor de dados: 5
Autores: Lees, D; Dore, W.
The behaviour of sex-pilli specific (F+) bacteriophage during the depuration process was investigated using Pacific oysters (Crassostrea gigas) and edible mussels (Mytilus edulis) naturally contaminated with untreated sewage. F+ bacteriophage was eliminated considerably slower than E. coli. This effect was most pronounced in oysters which showed average T90 bacteriophage values of 62.5 hours compared with 11 hours for E. coli. F+ bacteriophage in mussels was largely confined to the digestive tract. The majority of E. coli were similarly located but, in contrast, counts were also distributed throughout the other internal tissues. Investigation of ultra-violet (UV) dosage showed that the difference in depuration rate was unlikely to be due to the higher...
Tipo: Text
Palavras-chave: Escherichia coli; Mytilus edulis; Crassostrea gigas; Bivalvia; Indicator species; Marine molluscs; Bacteriophages; Pollution indicators; Marine pollution; Shellfish; Self purification.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1605.pdf

Étude prospective de l'exploitation des coquillages au large des côtes d'Aquitaine Volet : Ressources et première approche économique
Provedor de dados: 5
Autores: Caill-milly, Nathalie; Duclercq, Benoit; Morandeau, Gilles; De Casamajor, Marie-noelle.
Introduction: With the objective of diversifying current fishing and at the request of professionals in Aquitaine, the Regional Commission of Maritime Fishing and Marine Breeding (CRPMEM) of Aquitaine has started a discussion about the possibilities of opening a shellfishery. In the context of this course of action, and because of the absence of information on the presence and size of the resource, the CRPMEM of Aquitaine asked IFREMER's Halieutic Resources Laboratory of Aquitaine (LRHA) for assistance in acquiring information on the subject. At the same time, a prospective analysis study of the exploitation of shellfish off the coast of Aquitaine—regulation and business section—was performed by the CRPMEM of Aquitaine (Coiffec, 2006).  At that same time,...
Tipo: Text
Palavras-chave: France; North east atlantic; Aquitaine coasts; Fleet; Geographical zones; Sampling; Bivalvia; Shellfish fisheries.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/rapport-2217.pdf

Hazard analysis critical control points (HACCPs) and verification studies at shellfish depuration plants in the USA
Provedor de dados: 5
Autores: Furfari, S; Kelley-reitz, R; Dowgert, M.
This article describes the requirements of the Manual of Operations, Part 2 of the National Shellfish Sanitation Program, for conducting verification studies at depuration plants for molluscan shellfish. This article also describes the effect of the Hazard Analysis Critical Control Points (HACCPs) on such studies, and how to plan studies on new or existing plants. Methods are described for analyzing the various facets of the physical plant, such as sea water systems, tank construction, and other pertinent facilities. Of equal importance, methods are described for investigating and analyzing the various critical control points of the operation of the plant. Studies at a soft clam depuration plant are used as a model for this article. The most important...
Tipo: Text
Palavras-chave: Bivalvia; Pollution monitoring; Marine molluscs; Self purification; Shellfish.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1617.pdf

Development of a HACCP-based program for a private shellfish purification facility
Provedor de dados: 5
Autores: Howell, T; Jones, S; Nardi, G.
A HACCP-based program is developed for the Spinney Creek Oyster Company (SCOC) Shellfish Purification Facility under a pilot program funded and implemented by the New England Fisheries Development Association (NEFDA). The SCOC Facility, which includes a government approved in-house coliform laboratory, is fully licensed for oysters and clams under State of Maine and NSSP regulations. SCOC's business is producing value-added, quality-assured shellfish for premium, health conscious markets. To accomplish this, SCOC uses shellfish harvested from approved waters which is an important distinction from other purification plants which process shellfish originating from restricted waters. It was necessary to create a flow chart of the various steps involved in the...
Tipo: Text
Palavras-chave: Bivalvia; Pollution control; Public health; Methodology; Self purification; Shellfish; Marine molluscs.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1608.pdf

Influence de la densite et de l'age des huitres japonaises (Crassostrea gigas ) sur la croissance et la composition biochimique en bassins de terre
Provedor de dados: 5
Autores: Bodoy, A; Geiaron, P; Garnier, Jacqueline; Heurtebise, S.
Two different biomasses (100 g multiplied by m super(-2) and 1 kg multiplied by m super(-2)) of oysters were put in identical sea-water ponds, thus leading to different trophic conditions, corresponding to rearing techniques. Changes in growth, biochemical composition and sexual maturation were recorded for two age groups. The first one included 9 month-old oysters and the second one 21 month-old oysters, at the beginning of the experiment. For both age groups, significant differences were observed in growth and biochemical composition. Lipids were accumulated faster for the lower biomass. However, the only difference concerning glycogen was observed on the older oysters. They showed a peak at the lowest biomass and a decrease at the larger biomass. Sexual...
Tipo: Text
Palavras-chave: Crassostrea gigas; Bivalvia; Sea water; Oyster culture; Glycogen; Age; Chemical composition; Lipids; Biochemistry; Sexual maturity; Rearing; Pond culture; Biomass; Growth; Density.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-916.pdf

Alien species alert: Crassostrea gigas (Pacific oyster)
Provedor de dados: 5
Autores: Miossec, Laurence; Le Deuff, Rose-marie; Goulletquer, Philippe.
The Pacific oyster (Crassostrea gigas, Thunberg, 1793) is one of 20 species in the genus Crassostrea. Although native to the Japan/Korea region, C. gigas is a hardy species that has been introduced to a number of countries worldwide, including the US, Canada, the UK, France, Korea, China, New Zealand, Australia, South Africa, and South America, mainly for aquaculture purposes (Mann et al., 1991; Orensanz et al., 2002). As a result, C. gigas has become the leading species in world shellfish culture, with an estimated production of 4.6 million t in 2006 (FAO, 2008). Because C. gigas does not require additional food to sustain its growth, this species is relatively inexpensive and easy to produce. Its capacity to adapt to various environmental conditions and...
Tipo: Text
Palavras-chave: Transfer; Alien species; Distribution; Introduction; Bivalvia; Crassostrea gigas; Pacific oyster.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/rapport-6945.pdf

Adaptive features of a bacteriolytic enzyme from the style of the mussel Choromytilus meridionalis in response to environmental fluctuations.
Provedor de dados: 5
Autores: Seiderer, L; Robb, F.
The extracellular digestive apparatus of bivalve molluscs consists of a crystalline style containing diverse degradative enzymes which are released during rotation and dissolution of the style. This paper reviews the occurrence of a temperature-regulated bacteriolytic enzyme in the black mussel Choromytilus meridionalis , which is an inhabitant of coastal reefs on the south and south west coast of South Africa. This agent is unable to lyse Micrococcus luteus or Escherichia coli , both of which are susceptible to lysis by a true lysozyme. It appears to have a restricted spectrum of activity which includes both free-living and kelp-associated gram-negative bacteria. In addition, the level of activity varies dramatically according to the environmental water...
Tipo: Text
Palavras-chave: Choromytilus meridionalis; Bivalvia; Digestive system; Bacteria; Upwelling; Environmental effects; Adaptations; Bacteriocides; Marine molluscs; Enzymatic activity.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/acte-991.pdf

Caracteristiques ultrastructurales du spermatozoide de la coquille Saint-Jacques, Pecten maximus (Mollusque, Bivalve)
Provedor de dados: 5
Autores: Dorange, G; Lepennec, M.
The spermatozoon of Pecten maximus is of the primitive type usually associated with species having external fertilization or emitting the sperm in the water. The size of the nucleus is reduced. The middle piece is similar to that reported for several Bivalves. It contains glycogen. But the spermatozoon of P. maximus exhibits its own ultrastructural characteristics: the short acrosome differs in size, shape, position and ultrastructure or by a combination of these from that of many bivalves. No axial rods was observed in contrast to several species of Mytilidae, Veneridae and Ostreidae. These originalities could go to the genus level.
Tipo: Text
Palavras-chave: Pecten maximus; Bivalvia; Ultrastructure; Sperm.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1725.pdf

A rating system for oyster purification. Hazard analysis critical control point (HACCP) application to purification of live oysters
Provedor de dados: 5
Autores: Bird, P.
A Critical Hazard Analysis Rating (CHAR) based on the Hazard Analysis Critical Control Point (HACCP) concept is used to monitor oyster purification in New South Wales (N.S.W.), Australia. Critical areas for assessment include oyster condition, separation of raw and treated oysters, water quality (turbidity, salinity, temperature, aeration, circulation), purification period, flow rate, steriliser efficiency and tank hydraulics. Batch records and product identification are included. Purification supplements a total management program for producing safe oysters. The rating can also be used to endorse oysters produced under industry self-regulatory, quality assurance programs. The four main CHAR areas are operational standards, quality assurance, public health...
Tipo: Text
Palavras-chave: Saccostrea commercialis; Crassostrea gigas; Bivalvia; Marine molluscs; Safety regulations; Public health; Self purification.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1607.pdf

Digestibilité de l'algue Skeletonema costatum par la palourde japonaise Ruditapes philippinarum : éléments d'optimisation appliqués à la vénériculture intensive en marais
Provedor de dados: 5
Autores: Sauriau, Pierre-guy; IFREMER - Laboratoire Ecosystèmes Conchylicoles (LEC) La Tremblade; ECOCEAN - Environnement Littoral &amp; Marin La Rochelle.
Le présent rapport se scinde en trois volets. le premier expose la genèse de l'application à l'aquaculture intensive d'une technique employée en agriculture intensive. Le second volet s'attache à comparer les résultats des calculs de taux de digestibilité acquis, d'une part, in vitro sous des conditions de débit circulant et de type nourriture variables et, d'autre part, in situ par prélèvement des palourdes directement dans le système d'élevage. Enfin le dernier volet contient l'analyse des la distribution spatiales des colonies algales de Skeletonema costatum dans une claire ostréicole expérimentale.
Tipo: Text
Palavras-chave: Vénériculture; Marais; Algue; Skeletonema costatum; Digestion; Ruditapes philippinarum; Bivalvia.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00144/25476/23629.pdf

Aspects économiques et techniques de la perliculture en Polynésie Française. Contribution à l'étude de l'alimentation de l'huître perlière Pinctada margaritifera
Provedor de dados: 5
Autores: Hautefeuille, Fanny.
Cultured black pearls are now the tirst export value of French Polynesia. This fast growing activity encourage the retum of the islanders to their native islands and the revival of the economy of the archipelagoes. However, the importance of the development induced sorne technical and economical problems. New reglementations are needed to organize the market and stabilize the black pearl price, the quotation of which is falling since 1990. After the important mortalities which occured in 1985-1 986, the mother of pearl general investigation program was set up. Il aims at the study of the biology and the ecology of the mother of pearl Pinclada margaritifera. The study of the nutrition of this oyster is part of this program and will contribute to the...
Tipo: Text
Palavras-chave: Perliculture; Polynésie Française; Problèmes; Bivalve; Huître perlière; Pinctada margaritifera; Bilan énergétique; Contenu stomacal; Assimilation; Conover; Perliculture; French Polynesia; Problems; Bivalvia; Pearl oyster; Pinctada margaritifera; Energetic balance; Stomacal contents; Assimilation; Conover.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00424/53540/54397.pdf

Développement et utilisation des marqueurs génétiques hypervariables chez les espèces marines. Rapport de synthèse 1995-1998
Provedor de dados: 5
Autores: Bonhomme, Francois; Gerard, Andre.
L'objectif scientifique de l'Unité de Recherche Marine n0 16 est de partager les savoir faire conceptuels et méthodologiques des deux équipes, pour faire aboutir des programmes appliqués ou fondamentaux dans le domaine de la génétique des organismes marins. Ces programmes concernent plus particulièrement le développement et l'utilisation des marqueurs génétiques fournis par les techniques de biologie moléculaire dans les programmes suivants: Chez les huîtres des genres Ostrea et Crassostrea : Le modèle prioritaire de l'URM sera les huîtres Crassostrea et Ostrea. Pour des raisons historiques, les recherches sur Ostrea sont plus avancées et donneront des résultats plus rapidement. 1-Sélection assistée par marqueurs chez Ostrea edulis et Crassostrea gigas...
Tipo: Text
Palavras-chave: Génétique; Marqueur génétique; Biologie moléculaire; Sélection génétique; Ressource génétique; Recrutement; Bivalvia; Crassostrea; Ostrea; Pisces; Dicentrarchus labrax; Génotypage.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00043/15459/12834.pdf

Etude experimentale de la maturation ovocytaire chez Pecten maximus et Crassostrea gigas (Mollusca, Bivalvia)
Provedor de dados: 5
Autores: Widowati, L; Cochard, Jean-claude; Dorange, G; Le Pennec, M.
To date, it has been impossible to fertilize the oocytes of ripe Pecten maximus obtained by gonad stripping as it is routinely done in hatchery with Crassostrea gigas . The events occurring between artificial induction of spawning and normal fertilization were studied experimentally in order to explain this difference. Fertilization and rearing trials were performed on oocytes obtained from the gonads of both species by scarification, by aspiration from genital ducts (of P. maximus only) and after spawning. Every batch of oocytes was fixed for histological study. Serial sections of the gonad of a fixed spawning P. maximus were made to reveal modifications of the nucleus of the oocytes during their expulsion. In P. maximus the stripped oocytes can be...
Tipo: Text
Palavras-chave: Crassostrea gigas; Pecten maximus; Bivalvia; Marine molluscs; Animal reproductive organs; Larvae; Fecundity; Experimental research; Spawning; Sexual maturity.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1632.pdf

Perspectives d'exploitation des petits bivalves
Provedor de dados: 5
Autores: Berthou, Patrick.
Tipo: Text
Palavras-chave: France; Brittany; Bivalvia; Economics; Trade; Conservation; Catching; Stock; Fisheries; Manche Occidentale; Bretagne Sud; Bivalvia; Valorisation; Methode Capture; Gestion Stock; Exploitation.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/1987/rapport-2208.pdf

Etude des facteurs environnementaux intervenant sur la production de la palourde japonaise d'élevage Ruditapes philippinarum
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Les populations d'élevage de Ruditapes philippinarum présentent des disparités de croissance et de mortalité en fonction des secteurs océaniques ou estuariens à Marennes-Oléron. Les mortalités hivernales sont associées à des productions somatiques négatives, en particulier en zone estuarienne, où les teneurs en seston minéral sont élevées (70 mg.1-1). L'étude écophysiologique montre une baisse de la digestibilité de la nourriture parallèlement à l'augmentation de sa teneur minérale. Les productions négatives résultent d'une nourriture assimilée en quantité inférieure au seuil de rendement nul de croissance (2.J.h- 1). Les productions somatiques et gamétiques de l'animal sont déterminées par le temps d'émersion. Une diminution de celui-ci induit une...
Tipo: Text
Palavras-chave: Estimation nourriture; Capacité trophique; Estimation production; Mortalité; Ecophysiologie; Relation trophique; Bivalvia; Ruditapes philippinarum; Facteurs environnementaux.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/00098/20926/18535.pdf

Action de l'acétate de tributyle-étain sur les oeufs et les larves D de deux mollusques d'intérêt commercial : Crassostrea gigas (Thunberg) et Mytilus galloprovincialis (Lmk)
Provedor de dados: 5
Autores: Robert, Rene; His, Edouard.
The Tributyl tin acetate, a component of certain antifouling paints, has deleterious effects on eggs and D shaped larvae from Crassostrea gigas at 5 p.p.b. (HIS &amp; ROBERT, 1980). Here we have tested concentrations as low as 1 p.p.b. on eggs and on 24 hours old larvae both from Crassostrea gigas and Mytilus galloprovincialis. The same results are got ; this product kills embryos and larvae in a few days ; it prevents growth of 24 hours old larvae exposed to this toxic. Mussels larvae seem to be less sensitive.
Tipo: Text
Palavras-chave: Antifouling; Larves; Pollution; Toxicité; Bivalvia; Crassostrea gigas; Mytilus galloprovincialis; Antifouling; Larvae; Pollution; Toxicity; Bivalvia; Crassostrea gigas; Mytilus galloprovincialis.
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00037/14862/12185.pdf

Updated developments in ultraviolet equipment for shellfish depuration
Provedor de dados: 5
Autores: Ellner, S.
A brief discussion of the physics involved in the destruction of micro organisms by exposure to 2537A of UV energy: UV dose required for destruction of various micro organisms in a dynamic UV reactor (Bio Assay). History of UV design for shellfish depuration: Kelly Purdy Overhead design, Closed channel reactore, Open channel horizontal reactors, Open channel vertical reactors. Factors which effect UV performance: Chemical make up of water-coefficient of absorption, Physical make up of water-turbidity and Color impact, Overall UV transmission limits for effective disinfection. Discussion of the U.S. Public Health Service: effects of color, turbidity, and bacterial densities on UV performance. Impact of temperature on UV lamp performance. Impact of coating...
Tipo: Text
Palavras-chave: USA Coasts; Bivalvia; Marine molluscs; Storage effects; Ultraviolet radiation; Shellfish culture.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1630.pdf

Effect du Vibrio P1, pathogene de Ruditapes philippinarum , sur d'autres especes de bivalves
Provedor de dados: 5
Autores: Maes, P; Paillard, C.
The symptom which characterizes the brown ring disease (BRD) in Manilla clam Ruditapes philippinarum has been observed in other Bivalvia species (Veneridae and Pectinidae). Vibrio P1, responsible of the BRD in R. philippinarum , has been detected in other Veneridae which were carrying the symptom. In mussel and oysters which are cultivated in Europe, the symptom has never been reported and Vibrio P1 has not been detected. Experimental contaminations of bivalves of commercial interest with the pathogen showed a clear Vibrio P1 sensitivity of European clam R. decussatus ; this latter seems however to be less sensitive than the Manilla clam.
Tipo: Text
Palavras-chave: Ruditapes philippinarum; Bivalvia; Diseases; Marine molluscs; Pathology; Vibriosis.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-926.pdf

Fixation d''un anticorps anti-lysozyme dans des cellules de mollusques bivalves
Provedor de dados: 5
Autores: Auffret, Mathieu; Diouris, M; Herry, A.
A polyclonal rabbit anti-human lysozyme (Dako) was applied on histological sections from bivalve mollusc and revealed with a mouse anti-rabbit IgG fluorescein conjugated antibody to localise cellular lysozyme in tissues where its activity had previously detected by enzymatic techniques. Labelling occurred in the cytoplasm of epithelial cells covering the body. This is in agreement with the intracellular distribution of this enzyme. In the Lucinid Lucinella divaricata gills, the cytoplasm of bacteriocytes was also labelled. This suggests that antibacterial activity occurred in these cells. Control sections indicate that fluorescence was a consequence of true primary antibody fixation. However, its specificity should be verified by electrophoretical...
Tipo: Text
Palavras-chave: Bivalvia; Immunology; Antibodies; Electrophoresis; Histology.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1723.pdf

Mantle histology, histochemistry and ultrastructure of the pearl oyster Pinctada margaritifera (L.)
Provedor de dados: 5
Autores: Jabbour-zahab, Roula; Chagot, Dominique; Blanc, François; Grizel, Henri.
The edge and isthmus of the mantle of Pinctada margaritifera (Mollusc, Bivalvia) were studied using light and electron microscopy from a morphological and histochemical point of view. Six areas with several subareas were differentiated in the mantle edge. One of these areas is similar to the epithelium isthmus, Trials to elucidate the nature of the pigment responsible for the black colour of the shell and pearl indicate a melanin-like material. Possible functions of the distinctive epithelial areas in Pinctada margartifera mantle are discussed according to available data on the secretion of organic matrix of the shell, protein sclerotization and deposition of crystals in some pearl-forming molluscs. Three different epithelial areas in the outer mantle edge...
Tipo: Text
Palavras-chave: Bivalvia; Mollusc; Pinctada margaritifera; Pigment; Ultrastructure; Structure; Mantle; Bivalves; Mollusques; Pinctada margaritifera; Pigment; Ultrastructure; Structure; Manteau.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/publication-2770.pdf

Microalgal production in oyster ponds: Nutrition and dissolved organic nitrogen
Provedor de dados: 5
Autores: Maestrini, S; Robert, J.
Microalgal population of oyster ponds is dominated by several tychobenthic diatoms which provide a very good food to grow oysters. The mechanisms which allow them to dominate have been put under research. H.P.L.C. analysis demonstrated 17 amino acids amounted 10-17% of total DON, i.e. 0.6-11.5 mu g-at/l nitrogen. Serin and glycin were the most abundant. None of the substances was related to the presence of oyster. Glutamic acid, alanin and ornithin concentrations showed the greatest variations; they are suspected to play the major role as nutrient source. Screening of nutritional capabilities of ten local isolates of micro-algae to use 42 organic substances as sole source of nitrogen, demonstrated urea, glutamic acid and hypoxanthin are assimilated by all...
Tipo: Text
Palavras-chave: Bacillariophyceae; Bivalvia; Biomass; Pond culture; Algal settlements; Oyster culture; Nutritive value; Dissolved organic nitrogen.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/acte-1531.pdf

Traitement de l''eau par ultraviolets, application a la purification des coquillages
Provedor de dados: 5
Autores: Cailleres, J.
The germicide properties of ultra-violet radiation in a wave length ranging from 100 to 400 mm were already discovered back in the late 19th century. These properties specific to UV-C radiation (200-280 mm) result from its action on the nucleic acids of the micro-organisms. Each micro-organism, depending on its composition, therefore presents a specific sensitivity to this radiation.
Tipo: Text
Palavras-chave: France; Escherichia coli; Crassostrea; Bivalvia; Bacteria; Ultraviolet radiation; Self purification; Shellfish culture.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1629.pdf

Infection of clams by Perkinsus olseni as an example of the new French Surveillance Programme
Provedor de dados: 5
Autores: Miossec, Laurence; Garcia, Celine; Arzul, Isabelle; Francois, Cyrille; Joly, Jean-pierre; Chollet, Bruno; Robert, Maeva; De Blas, Isabelle.
The French network for the surveillance and monitoring of mollusc health (REPAMO) was officially set up in 1992 to control the shellfish status along the French coasts according to the European directives 91/67/EEC and 95/70/EC. The objectives are 1) the surveillance of notifiable diseases present in France (Bonamiosis and Marteiliosis of flat oysters Ostrea edulis), 2) the surveillance of health status of cultured and wild populations of molluscs, 3) the study of abnormal mortality and 4) the control of exchanges from European and third countries. In this context, a new surveillance programme, called Active Targeted Survey, part of the REPAMO, was applied in 2004 in order to improve the monitoring of the health status of the French mollusc populations...
Tipo: Text
Palavras-chave: Surveillance; Bivalvia; Clams; Perkinsus olseni; Pathogen; Pathology.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/acte-6376.pdf

Effect of ionizing radiation onVibrio bacteria in Crassostrea virginica (American oyster)
Provedor de dados: 5
Autores: Eberiel, D; Dooley, K; Langton, L; Malleth, J.
The presence of Vibrio bacteria in raw shellfish poses a significant health hazard to the consuming public. These human pathogens are natural, seasonal components of the microbial flora of shellfish which can result in primary septicemic or diarrheal fatal infections. Existing shellfish depuration neither targets nor eliminates the Vibrio bacteria. For this reason, additional purification processes are necessary. In this study, the effect of low dose gamma radiation on the inactivation ofVibrio cholerae (01 and non 01) and vulnificus is investigated. Log decrement (D10) values ranging only to a high of 0.09 KGy in the Vibrio strains support the hypothesis that food irradiation technology can provide an additional effective and efficient shellfish...
Tipo: Text
Palavras-chave: USA Coasts; USA; Vibrio vulnificus; Vibrio cholerae; Crassostrea virginica; Bivalvia; Vibrio; Bacteria; Self purification; Marine molluscs; Irradiation; Gamma radiation; Ionizing radiation; Oyster culture.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1619.pdf

Caractérisation morphologique et fonctionnelle des hémocytes chez l'huître plate, Ostrea edulis
Provedor de dados: 5
Autores: Xue, Quiggang.
The mechanism that bivalve molluscs react to infectious agents are important research subjects in the fIeld of disease control studies for these animals. While the selection of disease resistant populations have made decisive progression in some species, the mechanism behinds these resistant phenomena is not yet clear so far. However, hemocytes must represent one of the key factors in the reaction process. Based on this hypothesis, the structure and function of European flat oyster, Ostrea edulis, hemocytes have been investigated in aid of different techniques in the present study. ln addition, Pacific oyster, Crassostrea gigas, hemocytes have been analysed in certain aspects so as to provide some results for comparison. European flat oyster and Pacific...
Tipo: Text
Palavras-chave: Bivalvia; Ostrea edulis; Crassostrea gigas; Mécanismes de défense; Hémocytes; Granulocytes; Hyalinocytes; Séparation; Anticorps monoclonaux; Enzymes; Cytométrie de flux; Bivalvia; Ostrea edulis; Crassostrea gigas; Defence mechanisms; Hemocytes; Granulocytes; Hyalinocytes; Separation; Monoclonal antibodies; Enzymes; Flow cytometry.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00107/21820/19406.pdf

Dix ans de production en ecloserie de mollusques bivalves
Provedor de dados: 5
Autores: Leborgne, Y.
SATMAR has developed techniques and methods allowing a production of over 100 million spat per year at a size from 2 to 10 millimetres. Among the 13 species concerned by this production, 3 of major importance are the oysters Crassostrea gigas, Ostrea edulis and the Japanese little neck clam, Ruditapes philippinarum . The hatchery production could easily be doubled if the market would increase. Current research tend to increase the quality of the products by means of genetics and to lower the costs by improving the nursery phase.
Tipo: Text
Palavras-chave: Ruditapes philippinarum; Ostrea edulis; Crassostrea gigas; Bivalvia; Costs; Marine aquaculture; Economics; Hatcheries; Aquaculture enterprises; Ecloserie; Production commerciale; Mollusques bivalves.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1184.pdf

Pectinoidea (Mollusca, Bivalvia, Propeamussiidae, Cyclochlamydidae n. fam., Entoliidae and Pectinidae) from the Vanuatu Archipelago
Provedor de dados: 16
Autores: Dijkstra, H.H.; Maestrati, P.
This paper documents the species of Pectinoidea Rafinesque, 1815 collected in Vanuatu during the SANTO 2006 expedition. A total of 49 species (13 Propeamussiidae Abbott, 1954, 4 Cyclochlamydidae n. fam., 1 Entoliidae Teppner, 1922, and 31 Pectinidae Rafinesque, 1815) are represented, of which 70% are new records for Vanuatu. A new family, Cyclochlamydidae n. fam., is established for the genera Cyclochlamys Finlay, 1926, Chlamydella Iredale, 1929 and Micropecten n. gen., formerly placed in Propeamussiidae, but differing by their sculptured prodissoconch (smooth in Propeamussiidae), an occasionally antimarginally sculptured right valve (smooth or weak commarginally sculptured in Propeamussiidae), a (common) simple outer prismatic layer of longitudinally...
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Vanuatu Archipelago; Littoral; Bathyal; New family; New genus; New species; New records; 42.73.
Ano: 2012
URL: http://www.repository.naturalis.nl/record/427942

Annotations to the figured scallops (Mollusca, Bivalvia, Pectinidae) in Gualtieri’s “Index Testarum Conchyliorum”, deposited in the Museo di Storia Naturale e del Territorio at Calci (Pisa, Italy)
Provedor de dados: 16
Autores: Dijkstra, H.H.
An overview is given of the Pectinidae types present in the Gualtieri collection. In Gualtieri (1742) 46 figures (pl. 73 - 15 figs, pl. 74 - 25 figs, pl. 98 – 2 figs, and pl. 99 – 4 figs) show specimens of Pectinidae. Linnaeus (1758) referred to 10 Pectinidae species figured by Gualtieri. Of these, 8 species (7 paralectotypes and one syntype, herein recognised) were traced in the Gualtieri collection, and 2 species (Ostrea peslutrae and Ostrea maxima) were not found. Subsequently, Gmelin (1791) referred to 33 Pectinidae species (12 described by Linnaeus in 1758, one species described by Müller in 1776), and 20 species (13 species were traced, all herein recognised as syntypes, and 7 species were not found) named by himself. No direct evidence was found of...
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Pectinidae; Types; Synonyms; Linnaeus; Gmelin; Gualtieri; Rumphius.
Ano: 2016
URL: http://www.repository.naturalis.nl/record/618099

Nieuwe Pectinoidea vondsten van Bonaire
Provedor de dados: 16
Autores: Dijkstra, H.H.; Moolenbeek, R.G.
In March 2004, eight pectinoidean species (7 Pectinidae and one Propeamussiidae) are collected by scuba-diving from Bonaire (Netherlands Antilles), of which five are new records (Pectinidae: Decatopecten antillarum, Euvola chazaliei, Laevichlamys multisquamata, Spathochlamys benedicti; Propeamussiidae: Similipecten nanus).
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Pectinoidea; Bonaire; Nieuwe soorten; Pectinidae; Propeamussiidae; New species; Netherlands Antilles; 42.73.
Ano: 2009
URL: http://www.repository.naturalis.nl/record/408533

A new species of living glass-scallop, genus Similipecten (Bivalvia, Propeamussiidae), from the Bahama Islands (West Indies)
Provedor de dados: 16
Autores: Dijkstra, H.H.
Introduction  Redfern described and figured a propeamussiid species (as Cyclopecten sp.) from the Bahama Islands, which he compared with Cyclopecten nanus Verril &amp; Bush in Verrill, 1897,known from the sub-tropical and tropical western Atlantic. In fact, both species are more morphologically related to Similipecten than to Cyclopecten and therefore both are here classified with Similipecten.
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Propeamussiidae; Similipecten; New species; Bahama Islands; West Indies; 42.73.
Ano: 2002
URL: http://www.repository.naturalis.nl/record/408470

Types and originals of fossil Porifera and Cnidaria of Indonesia in Naturalis
Provedor de dados: 16
Autores: Leloux, J.; Renema, W.
The collection of Naturalis contains a significant collection of fossil corals and sponges. Within the framework of the 'NWO Groot' digitalisation projects the typespecimens, mainly from Indonesia, of Gerth, Umbgrove and related researchers were catalogued. 3920 lots containing 3479 typespecimens related to 676 taxa are concerned.
Tipo: Article / Letter to the editor
Palavras-chave: Gerth; Martin; Umbgrove; Foraminifera; Hydrozoa; Scleractinia; Rugosa; Tabulata; Octocorallia; Bivalvia; Ammonoidea; Echinodermata; Rhodophyta; Tertiary; Permian; 38.22.
Ano: 2007
URL: http://www.repository.naturalis.nl/record/270361

The identity of Isocrassina, Laevastarte and Ashtarotha (Mollusca, Bivalvia, Astartidae) and their representatives from beaches and estuaries in The Netherlands and Pliocene strata in Belgium
Provedor de dados: 16
Autores: Pouwer, R.
The identity of the subgenera Isocrassina Chavan, 1950, Laevastarte Hinsch, 1952, and Ashtarotha Dall, 1903, of the genus Astarte Sowerby, 1816 in the family Astartidae (Mollusca, Bivalvia) is discussed. Isocrassina has been widely used for Pliocene species in the North Sea Basin. Here it is demonstrated, that this is based on a redefinition of this subgenus, which excludes its type-species. As the North Sea species differ considerably from the type-species of Isocrassina in aspects of ornament and details of the hinge, it is concluded that they should be placed in the genus Laevastarte. A slightly modified definition of Isocrassina and Laevastarte is given and both are raised to genus level. The morphological basis for Ashtarotha is quite weak and it is...
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Astartidae; Astarte; Isocrassina; Laevastarte; Ashtarotha; Pliocene; Miocene; North Sea Basin; Systematics; New taxa; Neotype designation; 42.73; 38.22.
Ano: 2009
URL: http://www.repository.naturalis.nl/record/347006

Pectinoidea (Bivalvia: Propeamussiidae, Entoliidae and Pectinidae) from the Tarava Seamounts, Society Islands and the Tuamotu Archipelago (French Polynesia)
Provedor de dados: 16
Autores: Dijkstra, H.H.; Maestrati, P.
Eighteen species of Pectinoidea (six Propeamussiidae Abbott, 1954, one Entoliidae Teppner, 1922, eleven Pectinidae Rafinesque, 1815) are listed from the Tarava Seamounts, Society Islands and Tuamotu Archipelago, French Polynesia. Four Propeamussiidae species (Parvamussium lamellatum n. sp., Parvamussium scutulatum n. sp., Parvamussium vesiculosum n. sp., Cyclopecten comptulus n. sp.) are new to science.
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; French Polynesia; Littoral; Bathyal; New species; New records; 42.73.
Ano: 2013
URL: http://www.repository.naturalis.nl/record/460188

The family Pectinidae in South Africa and Mozambique (Mollusca: Bivalvia: Pectinoidea)
Provedor de dados: 16
Autores: Dijkstra, H.H.; Kilburn, R.N.
Of the 29 species of Pectinidae here recorded from South Africa and Mozambique, ca. 76% have Indo-West Pacific origins, 17% are of Mediterranean-West African origin and ca. 7% are probably of Southern  Ocean origin.  New species: Mirapecten tuberosus, Veprichlamys africana.  New subspecies: Aequipecten commutatus peripheralis.  New synonyms: Chlamys liltvedi Wagner, 1984 = Laevichlamys lemniscata(Reeve, 1853). Genus Karnekampia Wagner, 1988 = Pseudamussium Mörch, 1853, Somalipecten Waller, 1996 = Mirapecten Dall, Bartsch &amp; Rehder, 1938. Perapecten Wagner, 1985, and Lindapecten Petuch, 1995 = Aequipecten Fischer, 1886.  New records for South Africa: Delectopecten musorstomi Poutiers, 1981; Anguipecten picturatus Dijkstra, 1995; Decatopecten amiculum...
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Pectinoidea; Pectinidae; South Africa; Mozambique; 42.73.
Ano: 2001
URL: http://www.repository.naturalis.nl/record/410532

Note on the type series of Parvamussium liaoi and Scaeochlamys squamea (Bivalvia: Pectinoidea) from Taiwan
Provedor de dados: 16
Autores: Chang, C.; Cheng, S.; Dijkstra, H.H.
Pectinoidea is a superfamily of marine bivalve mollusks. Type series of the two new Pectinoidea species, Parvamussium liaoi (Propeamussiidae) and Scaeochlamys squamea (Pectinidae), collected during deep-sea cruises off south and northeastern Taiwan in 2000 and 2001, respectively, were relocated from the Muséum national d'Histoire naturelle, Paris, France and the National Museum of Natural Sciences, Taichung, Taiwan (NMNS) to the Mollusca collection of National Museum of Marine Biology and Aquarium, Pingtung, Taiwan (NMMBM). A catalog denoted of the original NMNS and the new registered NMMBM codes, scientific names in Chinese, and color plates of the type series are provided.
Tipo: Article / Letter to the editor
Palavras-chave: Deep-sea; Bivalvia; Taiwan; Type series; 42.73.
Ano: 2011
URL: http://www.repository.naturalis.nl/record/408535

A new species of living scallop of the genus Anguipecten (Bivalvia, Pectinidae) from the tropical Indo-Pacific
Provedor de dados: 16
Autores: Dijkstra, H.H.
Introduction  During the Indonesian-French Karubar cruise to eastern Indonesia a new scallop was found near the Kai Islands, which was provisionally identified by Dijkstra &amp; Kastoro(1997: 279, figs 156-159), based on a few dead specimens from the upper bathyal depths. Subsequently, more material was collected by the French Musorstom 9 cruise to the Marquesas Islands (French Polynesia), sufficient to describe it herein. All specimens (empty shells) were deposited in MNHN, with voucher specimens in the private pectinoid reference collection of the author.
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Pectinidae; Anguipecten; New species; Marquesas Islands; Indonesia; 42.73.
Ano: 2002
URL: http://www.repository.naturalis.nl/record/408276

New species and new records of living bathyal Pectinoidea (Bivalvia: Propeamussiidae: Pectinidae) from the Southwest Pacific
Provedor de dados: 16
Autores: Dijkstra, H.H.; Maestrati, P.
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Pectinoidea; Pectinidae; Southwest Pacific; 42.73.
Ano: 2013
URL: http://www.repository.naturalis.nl/record/461337

Bathyal and abyssal Pectinoidea from the Red Sea and Gulf of Aden (Bivalvia: Propeamussiidae, Entoliidae, Pectinidae)
Provedor de dados: 16
Autores: Dijkstra, H.H.; Janssen, R.
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Pectinoidea; Pectinidae; Gulf of Aden; 42.73.
Ano: 2013
URL: http://www.repository.naturalis.nl/record/461336

Pectinoidea (Mollusca, Bivalvia, Propeamussiidae, Entoliidae and Pectinidae) from the Austral Islands (French Polynesia)
Provedor de dados: 16
Autores: Dijkstra, H.H.; Maestrati, P.
Twenty-nine species of Pectinoidea (12 Propeamussiidae, 1 Entoliidae, 16 Pectinidae) are recorded from the Austral Islands, the southernmost archipelago of French Polynesia. One genus (Pectinidae: Lamellipecten n. gen.) and five species (Propeamussiidae: Parvamussium australanum n. sp., Cyclochlamys australensis n. sp., Cyclopecten ambiguus n. sp.; Pectinidae: Lamellipecten aduncus n. gen., n. sp., Mimachlamys erycina n. sp.) are new to science, and most others are new records for the archipelago. The near-shore fauna of Rapa has 12 species of Pectinidae, and half of these have narrow-range distributions. Such a remarkably high level of marine endemism is shared by other mollusc taxa on Rapa.
Tipo: Article / Letter to the editor
Palavras-chave: Mollusca; Bivalvia; Pectinoidea; Propeamussiidae; Entoliidae; Pectinidae; Austral Islands; Littoral; Bathyal; New genus; New species; 42.73.
Ano: 2010
URL: http://www.repository.naturalis.nl/record/408509

A synoptical classification of the Bivalvia (Mollusca)
Provedor de dados: 16
Autores: Carter, J.G.; Altaba, C.R.; Anderson, L.R.; Araujo, R.; Biakov, A.S.; Bogan, A.E.; Campbell, D.C.; Campbell, M.; Chen, J.; Cope, J.C.W.; Delvene, G.; Dijkstra, H.H.; Fang, Z.; Gardner, R.N.; Gavrilova, V.A.; Goncharova, I.A.; Harries, P.J.; Hartman, J.H.; Hautmann, M.; Hoeh, W.R.; Hylleberg, J.; Jiang, B.; Johnston, P.; Kirkendale, L.; Kleemann, K.; Koppka, J.; Kříž, J.; Machado, D.; Malchus, N.; Márquez-Aliaga, A.; Masse, J.-P.; McRoberts, C.A.; Middelfart, P.U.; Mitchell, S.; Nevesskaja, L.A.; Özer, S.; Pojeta Jr., J.; Inga V. Polubotko, Jose Maria Pons, Sergey Popov, Teresa Sánchez, André F. Sartori, Robert W. Scott, Irina I. Sey, Javier H. Signorelli, Vladimir V. Silantiev, Peter W. Skelton, Thomas Steuber, J. Bruce Waterhouse, G. Lynn Wingard, and Thomas Yancey1; Polubotko, I.V.; Pons, J.M.; Popov, S.; Sánchez, T.; Sartori, A.F.; Scott, R.W.; Sey, I.I.; Signorelli, J.H.; Silantiev, V.V.; Skelton, P.W.; Steuber, T.; Waterhouse, J.B.; Wingard, G.L.; Yancey, T.
Preface  This classification summarizes the suprageneric taxonomy of the Bivalvia for the upcoming revision of the Bivalvia volumes of the Treatise on Invertebrate Paleontology, Part N.
Tipo: Article / Letter to the editor
Palavras-chave: Synoptical classification; Bivalvia; Mollusca; 42.73.
Ano: 2011
URL: http://www.repository.naturalis.nl/record/408278

Results of the Rumphius Biohistorical Expedition to Ambon (1990). Part 13. Mollusca, Bivalvia, Cardiidae
Provedor de dados: 16
Autores: Poorten, J.J. ter.
31 Cardiidae species have been collected in Ambon, Indonesia by the Rumphius Biohistorical Expedition, comprising circa 40% of the known species of this family from the Indonesian archipelago. Seven of these could be traced to the figures given by Rumphius (1705) and an additional two, taking into account some reservations about the identity of Rumphius' depicted shells. This implies that all but one of Rumphius' species, viz. Tridacna (Tridacna) gigas (Linnaeus, 1758), have been reencountered by the present expedition. The expedition has yielded the first Indonesian published records of two species: Fulvia (Laevifulvia) lineonotata Vidal, 1994 and Acrosterigma dianthinum (Melvill &amp; Standen, 1899). For the latter this implies a considerable range...
Tipo: Article / Letter to the editor
Palavras-chave: Mollusca; Bivalvia; Cardiidae; Indonesia; Moluccas; Ambon; Rumphius; 42.73.
Ano: 2007
URL: http://www.repository.naturalis.nl/record/226661

New records of Fungiacava eilatensis Goreau et al., 1968 (Bivalvia, Mytilidae) boring into Indonesian mushroom corals (Scleractinia, Fungiidae)
Provedor de dados: 16
Autores: Hoeksema, B.W.; Kleemann, K.
New observations on endoparasites in mushroom corals at South Sulawesi and Bali resulted in eight coral host records of the  mytilid bivalve Fungiacava eilatensis Goreau et al., 1968, bringing the total to 14. The host corals were observed in various habitats, most frequently on sandy substrates. The largest numbers of parasitic bivalves (&gt;10 individuals) were found in large attached mushroom coral hosts of the genus Podabacia.
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Mytilidae; Fungiacava; Scleractinia; Fungiidae; Indonesia; South Sulawesi; Bali; Endoparasitism; 42.72; 42.73.
Ano: 2002
URL: http://www.repository.naturalis.nl/record/268894

First Indonesian record of Fungiacava eilatensis Goreau et al., 1968 (Bivalvia: Mytilidae), endosymbiont of Fungia spp. (Scleractinia: Fungiidae)
Provedor de dados: 16
Autores: Hoeksema, B.W.; Achituv, Y.
The mytilid bivalve Fungiacava eilatensis Goreau, Goreau, Neumann &amp; Yonge, 1968, previously mistakenly referred to as F. eilatensis Soot-Ryen, 1969, is reported for the first time from Indonesia. It lives as an obligate endosymbiont of mushroom corals, particulary Fungia spp., reef-dwelling corals restricted to the tropical Indo-Pacific. Notes are given on its association with different host species, its habitat, its biogeography, and its possible competition with endosymbiotic gastropods belonging to the genus Leptoconchus (Coralliophilidae).
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Mytilidae; Fungiacava; Lithophaga; Gastropoda; Prosobranchia; Coralliophilidae; Leptoconchus; Endosymbiosis; Host species; Anthozoa; Scleractinia; Fungiidae; Fungia; Ecology; Biogeography; Indonesia; 42.72; 72.73.
Ano: 1993
URL: http://www.repository.naturalis.nl/record/268735

A new living species of Cyclochlamys (Bivalvia, Pectinoidea, Cyclochlamydidae) from Wake Atoll (Pacific)
Provedor de dados: 16
Autores: Dijkstra, H.H.; Raines, B.K.
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Pectinoidea; Cyclochlamydidae; Cyclochlamys; New species; Wake Atoll; Pacific; 42.73.
Ano: 2013
URL: http://www.repository.naturalis.nl/record/461340

Mytilus antiquorum J. Sowerby, 1821 and other Pliocene mussels (Mollusca, Bivalvia) from the Southern North Sea Basin
Provedor de dados: 16
Autores: Vervoenen, M.; Wesselingh, F.P.; Nieulande, F.A.D. van.
Mytilus antiquorum J. Sowerby, 1821, is recorded from the Coralline Crag Formation of East Anglia (UK) and the Lillo Formation (Oorderen, Kruisschans and Merksem members) of the Antwerp area (Belgium). The species is diagnosed on the basis of newly collected material and differentiated from modern European mussel species. The presence of M. antiquorum in the southern North Sea Basin is restricted to the Middle (Piacenzian) and early Late Pliocene (Gelasian). A possible occurrence of the species in the latest Pliocene of northern Greenland is discussed. A second Middle- Late Pliocene North Sea Basin species, tentatively referred to as M. edulis forma giganteus Wood, 1874, is diagnosed and discussed. The systematic status of this species remains unsolved. In...
Tipo: Article / Letter to the editor
Palavras-chave: Pliocene; North Sea basin; Mollusca; Bivalvia; Mytilidae; 42.73; 38.22.
Ano: 2000
URL: http://www.repository.naturalis.nl/record/235200

A contribution to the knowledge of the pectinacean Mollusca (Bivalvia: Propeamussiidae, Entoliidae, Pectinidae) from the Indonesian Archipelago
Provedor de dados: 16
Autores: Dijkstra, H.H.
During the Indonesian-Dutch SNELLIUS -II Expedition (1984-1985) to the Indonesian Archipelago 46 pectinacean species were collected from the Flores Sea and Banda Sea (5°52'-9°57'S, 118°12'-123°58'E) at littoral to bathyal depth (835 m). One new pectinid genus, viz. Glorichlamys gen. nov., six new propeamussiids, viz. Parvamussium araneum spec. nov., Parvamussium carbaseum spec. nov., Parvamussium cassium spec. nov., Parvamussium undosum spec. nov., Parvamussium virgatum spec. nov., Cyclopecten cancellus spec. nov., and one new entoliid, viz. Pectinella aequoris spec. nov. are described. Twelve new records of Pectinacea for this region are mentioned. For Ostrea squamosa Gmelin, 1791 a lectotype is designated. In addition Pectinidae of the...
Tipo: Article / Letter to the editor
Palavras-chave: Mollusca; Bivalvia; Propeamussiidae; Entoliidae; Pectinidae; Taxonomy; Indonesia.; 42.73.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/317854

Two new species of Pectinoidea (Bivalvia, Propeamussiidae and Pectinidae) from the Philippines
Provedor de dados: 16
Autores: Dijkstra, H.H.
Introduction  Recently Mr AI Deynzer (Sanibel Island. Florida) sent me some unidentified pectinoid specimens from the Philippines for examination . Among these there are two new species.
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Propeamussiidae; Pectinidae; Panamussium; Veprichlamys; Taxonomy; Phhilippines; 42.73.
Ano: 2004
URL: http://www.repository.naturalis.nl/record/408471

Lioconcha lamprelli spec. nov. (Bivalvia: Veneridae) from Australia
Provedor de dados: 16
Autores: Moolenbeek, R.G.; Dekker, H.; Meij, S.E.T. van der.
A new venerid species of the genus Lioconcha is described from the coastal waters of eastern Queensland, Australia.
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Veneridae; New species; Lioconcha; Australia; Queensland; Great Barrier Reef; 42.73.
Ano: 2008
URL: http://www.repository.naturalis.nl/record/292112

Type specimens of Pectinidae (Bivalvia) described by Ignaz von Born
Provedor de dados: 16
Autores: Dijkstra, H.H.
Born described in two publications (1778, 1780) the molluscs in the collection of Empress Maria Theresa (1717-1780), now in the Natural History Museum at Vienna. In this paper the Pectinidae type material is described. Ten new species were introduced of which Argopecten  nucleus (Born, 1778) and Minnivola pyxidata (Born, 1778) are valid taxa. The remaining eight names are junior or senior synonyms and there is also a nomen inquirendum.
Tipo: Article / Letter to the editor
Palavras-chave: Born; Mollusca; Bivalvia; Pectinidae; Type species; Taxonomy; Nomenclature; 42.73.
Ano: 2009
URL: http://www.repository.naturalis.nl/record/408473

New species and new records of deep-water Pectinoidea (Bivalvia: Propeamussiidae, Entoliidae and Pectinidae) from the South Pacific
Provedor de dados: 16
Autores: Dijkstra, H.H.; Maestrati, P.
Fifty-two deep-water species of Pectinoidea (37 Propeamussiidae, 1 Entoliidae, 14 Pectinidae) are listed from Norfolk Ridge (11 species), Loyalty Islands (4 species), Fiji Islands (30 species), Tonga (26 species), Solomon Islands (26 species) and the Marquesas archipelago (8 species). All species from Fiji, Tonga and the Marquesas are new records and six species of Propeamussiidae are new to science: Propeamussium boucheti (Fiji and Tonga), Parvamussium biformatum (Solomons), Parvamussium lozoueti (Fiji and Tonga), Parvamussium marquesanum (Marquesas), Parvamussium polynesianum (Marquesas) and Similipecten herosae (Tonga). Two new combinations (Hyalopecten tydemani, Talochlamys gladysiae) are introduced.
Tipo: Article in monograph or in proceedings
Palavras-chave: Bivalvia; Pectinoidea; Propeamussiidae; Entoliidae; Pectinidae; South Pacific; New species; 42.73.
Ano: 2008
URL: http://www.repository.naturalis.nl/record/408514

Types of Cenozoic Mollusca from Java in the Martin Collection of Naturalis
Provedor de dados: 16
Autores: Leloux, J.; Wesselingh, F.P.
An updated type catalogue of the Martin Collection (fossil Mollusca, predominantly from the Cenozoic of Java, Indonesia) is presented. Type specimen data, updated locality data, and illustrations are given.
Tipo: Article / Letter to the editor
Palavras-chave: Type specimens; Bivalvia; Gastropoda; Scaphopoda; Indonesia; Martin; 38.22.
Ano: 2009
URL: http://www.repository.naturalis.nl/record/313781

New bathyal species and records of Pectinoidea (Bivalvia: Propeamussiidae and Pectinidae) from Taiwan
Provedor de dados: 16
Autores: Dijkstra, H.H.; Maestrati, P.
New species: Parvamussium liaoi n. sp., Scaeochlamys squamea n. sp. New records for Taiwan: Propeamussium siratama, Parvamussium aldeynzeri, Parvamussium cristatellum, Parvamussium undisonum, Parvamussium vesiculatum, Cic/opecten fluctuatus, Delectopecten musorstomi
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Propeamussiidae; Pectinidae; Taxonomy; Taiwan; 42.73.
Ano: 2009
URL: http://www.repository.naturalis.nl/record/408529

Results of the Rumphius Biohistorical Expedition to Ambon : Part 6. Mollusca, Bivalvia, Pectinidae
Provedor de dados: 16
Autores: Dijkstra, H.H.
During the Rumphius Biohistorical Expedition (1990) to Ambon 17 Pectinidae species were collected, nine of which were described by Rumphius (1705) and five illustrated by Rumphius. One species, viz. Decatopecten plica (Linnaeus, 1758), illustrated in Rumphius (1705: pl. 44, fig. O), has not been refound. No decisive evidence is found of Rumphius' pectinids kept in either the Gualtieri collection at Calci, or in the Naturhistorisches Museum at Vienna.
Tipo: Article / Letter to the editor
Palavras-chave: Rumphius Biohistorical Expedition; Indonesia; Ambon; Mollusca; Bivalvia; Pectinidae; 42.01; 42.73.
Ano: 1997
URL: http://www.repository.naturalis.nl/record/318558

Late Devonian (Frasnian) bivalves from the Nocedo Formation: the results of Wilhelm Kegel’s 1927 field trip to northern Spain
Provedor de dados: 16
Autores: Amler, M.R.W.
During a field trip to the Peña-Corada Unit of the southernmost Esla region of the Cantabrian Mountains in 1927, the German stratigrapher Wilhelm Kegel sampled brachiopods and bivalves from a section in the Laoz valley near La Ercina. The stratigraphic position is believed to be part of the Nocedo Formation of Frasnian age. This fauna includes poorly preserved steinkerns of a near-shore bivalve fauna that was prepared for publication including labels and proposed names, but never published. The fauna represents only a very small and random part of the former community. But as information on Frasnian bivalves is scarce, the few specimens add important information on the distribution and palaeogeographic occurrence of near-shore, that is, Rhenish Facies...
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Rhenish Facies; Nocedo Formation; Frasnian; Cantabrian Mountains; Iberia; Wilhelm Kegel; 38.22.
Ano: 2010
URL: http://www.repository.naturalis.nl/record/361952

Pectinoidea (Bivalvia: Propeamussiidae and Pectinidae) from the Panglao region, Philippine Islands
Provedor de dados: 16
Autores: Dijkstra, H.H.
Sixty one Pectinoidea species (11 Propeamussiidae and 50 Pectinidae) collected by the 2004 Panglao Marine Biodiversity Project (PMBP) to Panglao, Philippines, and the PANGLAO 2005 Deep-Sea Cruise are described. One Propeamussiidae species is new to science: Parvamussium largoi spec. nov. Three pectinoidean species (1 Propeamus-siidae, 2 Pectinidae) are new records for the Philippines: Similipecten eous (Melvill in Melvill &amp; Standen, 1907), "Mimachlamys" kauaiensis (Dall, Bartsch &amp; Rehder, 1938) and Haumea rehderi (Grau, 1960). Records of species in the ZMA collection (now Naturalis Biodiversity Center) from the Philippines, not sampled by PMBP 2004 and PANGLAO 2005, are given. Amussium electrum Pelseneer, 1911 is newly synonymised with...
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Pectinoidea; Propeamussiidae; Pactinidae; Panglao; Philippines; Recent; Taxonomy; Nomenclature; New species; Distribution; 42.73.
Ano: 2013
URL: http://www.repository.naturalis.nl/record/460183

An annotated catalogue of Recent Pectinoidea (Mollusca, Pectinidae and Propeamussiidae) type material in the Museum of Natural History, Humboldt University, Berlin
Provedor de dados: 16
Autores: Dijkstra, H.H.; Köhler, F.
This paper lists 22 pectinoid types (21 primary and one secondary) and three potential syntypes in the Museum of Natural History (ZMB) in Berlin. Eight lectotypes are designated herein for the stabilization of taxonomic names: Pecten aequatorialis, Pecten australis, Pecten clathratus, Camptonectes gaussianus, Pecten nigromaculatus, Pecten puncticulatus, Pecten pycnolepis and Pecten vesiculosus. Nomenclatural notes on the types and further specimens are provided and the current systematic positions of the covered taxa are reported.
Tipo: Article / Letter to the editor
Palavras-chave: ZMB; Bivalvia; Nomenclature; Taxonomy; Lectotype designation; 42.73.
Ano: 2008
URL: http://www.repository.naturalis.nl/record/408511

First record of a pontoniine shrimp (Caridea, Palaemonidae) in association with a boring bivalve of the genus Spengleria (Bivalvia, Euheterodonta, Gastrochaenidae)
Provedor de dados: 16
Autores: Fransen, C.H.J.M.; Meij, S.E.T. van der.
During fieldwork in Raja Ampat, West Papua, Indonesia, in 2007, a pontoniine shrimp, most likely belonging to the genus Anchistus, was collected from a coral boring bivalve of the genus Spengleria. This is the first record of a pontoniine shrimp living in association with a boring bivalve. As it probably concerns a juvenile shrimp, its identity remains unclear. Its affinities with the Indo-West Pacific mollusc-associated genera and with congenerics are discussed.
Tipo: Article / Letter to the editor
Palavras-chave: Shrimps; Caridea; Palaemonidae; Bivalves; Bivalvia; Euheterodonta; Gastrochaenidae; West Papua; Indonesia.
Ano: 2010
URL: http://www.repository.naturalis.nl/record/409048

Type specimens of Maastrichtian fossils in the National Museum of Natural History, Leiden
Provedor de dados: 16
Autores: Leloux, J.
The type specimens of Maastrichtian invertebrate fossils from Limburg, The Netherlands, present in the National Museum of Natural History, Leiden, are listed. The Upper Cretaceous plant type specimens from Limburg of Miquel that were once part of the Staring collection present in the Palaeobotanical Museum of the Utrecht University are also included. Specimens of species described by Bosquet are also listed, since they possibly include type material. Short biographies of some of the important collectors and investigators are presented.
Tipo: Article / Letter to the editor
Palavras-chave: Foraminifera; Scleractinia; Bivalvia; Ammonoidea; Nautiloidea; Asterozoa; Fossil plants; Ostracoda; Brachiopoda; Cirripedia; Staring Collection; 38.22.
Ano: 2002
URL: http://www.repository.naturalis.nl/record/216192

Fossil predation: did some clavilithine fasciolariid gastropods employ valve-wedging to feed on bivalves?
Provedor de dados: 16
Autores: Vermeij, Geerat J.
Several gastropods, including members of the  Busyconinae, wedge or chip bivalve prey by inserting the  outer lip between the valves. This habit, which is associated  with an abapically downwardly convex outer lip, often results  in breakage and subsequent repair of the lip. I tested the  hypothesis that convex-lipped clavilithines from the Eocene  of France and the Neogene of Indonesia had higher frequencies  of repair than their straight-lipped counterparts. Although  this prediction was verified, frequencies of repair are low (0  to 0.19) compared to those of busyconines, indicating either  that prey bivalves were small or that the predators are smaller  than most busyconines.
Tipo: Article / Letter to the editor
Palavras-chave: Gastropoda; Clavilithes; Bivalvia; Predation; Outer lip.
Ano: 2015
URL: http://www.repository.naturalis.nl/record/588037

Copepoda (Crustacea) associated with commercial and non-commercial Bivalvia in the East Scheldt, The Netherlands
Provedor de dados: 16
Autores: Stock, Jan H.
Six species of Copepoda Poecilostomatoida of the families Myicolidae, Sabelliphilidae, Lichomolgidae, and Mytilicolidae are recorded from six different species of intertidal bivalves in the East Scheldt (The Netherlands), a branch of the southern bight of the North Sea. One bivalve species may harbour more than one species of copepod, and one copepod species may use more than one species of bivalves as host. Mytilicola orientalis and Myicola ostreae are new to the North Sea, both being undoubtedly carried in accidentally with oriental oysters, successfully introduced for mariculture. In the light of the damage that was caused by Mytilicola intestinalis to Dutch mussel cultures in the past, the acclimatization of M. orientalis is a matter of concern, the...
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Parasitic Copepoda; Netherlands.
Ano: 1993
URL: http://www.repository.naturalis.nl/record/504221

Lithophaga (Bivalvia, Mytilidae), including a new species, boring into mushroom corals (Scleractinia, Fungiidae) of South Sulawesi, Indonesia
Provedor de dados: 16
Autores: Kleemann, K.; Hoeksema, B.W.
Bivalve species of the mytilid genus Lithophaga, including a new one, are recorded from Indonesian mushroom corals (Scleractinia, Fungiidae). True associations with live hosts including L. laevigata, L. lessepsiana, L. lima, L. punctata spec. nov., and L. simplex, while specimens of L. malaccana and L. mucronata have been found in bore holes in encrusted or dead parts of infested corals.
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; Mytilidae; Lithophaga; Scleractinia; Fungiidae; Indonesia; South Sulawesi; Endoparasitism; 42.72; 72.73.
Ano: 2002
URL: http://www.repository.naturalis.nl/record/268876

Onshore nursery rearing of bivalve molluscs in Belgium
Provedor de dados: 27
Autores: Claus, C.; Maeckelberghe, H.; De Pauw, N.
From October to April the growth of spat of &lt;i&gt;Ostrea edulis, Crassostrea gigas&lt;/i&gt; and &lt;i&gt;Venerupis semidecussata&lt;/i&gt; in an onshore nursery was recorded as a function of water temperature and food level. The results of this study indicate that even very eutrophic water, such as that of the Sluice Dock at Ostend, Belgium, does not provide enough microalgae to sustain growth of bivalve spat during winter, irrespective of whether the water is heated or not. It is necessary to supply additional food (cultured live algae). Food shortage for three months at higher temperature induced a stress situation resulting in high mortality rates, even after transferring all the spat into an optimal combination of temperature and food availability.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Rearing; Bivalvia; Molluscs; Belgium.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3369

Nursery culturing of bivalve spat in heated seawater
Provedor de dados: 27
Autores: Claus, C.; Van Holderbeke, L.; Maeckelberghe, H.; Persoone, G.
The controlled nursery culturing of mollusc spat produced to date by millions in commercial hatcheries is an intermediate step in mollusc farming which is receiving more and more attention. Different technologies for nursery culturing indoors as well as outdoors have been developed at different places.The principles are always basically the same and consist of culturing postlarvae of a few millimeters to a size of a few centimeters in densities as high as possible in specific devices containing seawater which is eventually enriched with live unicellular algae or inert foods. This paper reports on the first results obtained in Belgium in an indoor experimental nursery with spat of &lt;i&gt;Ostrea edulis, Crassostrea gigas&lt;/i&gt; and &lt;i&gt;Venerupis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mollusc culture; Spat; Bivalvia.
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3402

Mercury in the bivalve &lt;i&gt;Anadara (Senilia) senilis&lt;/i&gt; from Ghana and Nigeria
Provedor de dados: 27
Autores: Joiris, C.R.; Azokwu, M.I.; Otchere, F.A.; Ali, I.B.
Samples of the bivalve Anadara (Senilia) senilis collected from a closed lagoon (Sakumo) and two open lagoons in Ghana (Benya and Ningo; n=550), and the Bonny river estuary in Nigeria (n=620), were analyzed for their total and organic mercury content. Total mercury concentration showed significant spatial differences, with median values of 0.1 µg/g dry wt. in the closed lagoon, 0.2 in the estuary and 0.3 in the open lagoons. Concentration tended to be higher during the dry season in the lagoons, but lower in the estuary. The median relative organic concentration varied between 20 and 60% methyl Hg, depending on location and season. Age effects were detected in the lagoons, total Hg concentration decreasing with length.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bivalvia.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6843

Trends in nursery rearing of bivalve molluscs
Provedor de dados: 27
Autores: Claus, C.
Nursery rearing of bivalve molluscs, as the intermediate step between the controlled production of larvae in commercial hatcheries and the growout in the wild, is a practice which is receiving more and more attention in mollusc farming. The purpose of nursery rearing of bivalves is to culture cultchless spat of a few millimeters in size, up to 1-2 cm, in a minimum of time, in densities as high as possible, and at minimal costs and risks. In the last decade various technologies for nursery culturing, indoors as well as outdoors, have been developed at different places, ranging from suspended culture in the open sea to controlled onshore culture in upwelling cylinders. This paper reviews the different systems developed until now, with special emphasis on one...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Experimental rearing; Mollusc culture; Bivalvia.
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3401

Use and production of microalgae as food for nursery bivalves
Provedor de dados: 27
Autores: De Pauw, N.
The nutritional value of various foods and diets for juvenile bivalves is reviewed and commented. From all foods tested specific microalgues seem to be the most suited for young bivalves. Presently, serious alternatives for replacing living algae by inert, artificial feeds are practically inexistent, though research efforts are made in this direction. The various microalgae production-systems used for feeding juvenile bivalves are also reviewed. A literature survey and the COST inquiry held in 1979 by our laboratory revealed that nearly all commercial enterprises involved in nursery rearing of bivalve molluscs in Europe utilize natural phytoplankton as food. Culturing of the postlarvae is performed either &lt;i&gt;in situ&lt;/i&gt; (in the sea) or in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algae culture; Food; Mollusc culture; Bivalvia.
Ano: 1981
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3406

Mollusk bycatch in trawl fisheries targeting the Atlantic seabob shrimp Xiphopenaeus kroyeri on the coast of Sergipe, northeastern Brazil
Provedor de dados: 84
Autores: Mendonça,Luana Marina de Castro; Guimarães,Carmen Regina Parisotto; Lima,Silvio Felipe Barbosa.
Abstract The malacofauna bycatch of sea-bob shrimp Xiphopenaeus kroyeri (Heller, 1862) trawl fisheries on the coast of Sergipe was studied for 5 years. The malacofauna bycatch considered was obtained in nine oceanographic sampling campaigns carried out between May 1999 and June 2003 in 18 stations distributed in six transects along depths of 10, 20 and 30 m. A total of 2,669 individuals of mollusk belonging to 54 species were captured on the 18 sea-bob shrimp trawl stations carried out along the coast of Sergipe. The considerable richness of mollusks was composed by 19 families and 31 species of gastropods, 12 families and 19 species of bivalves and 2 families and 4 species of cephalopods. The highest abundance were observed at stations 13 (373...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Megafauna; Mollusks; Gastropoda; Bivalvia; Cephalopoda.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492019000100233

Comparative morphology among representatives of main taxa of Scaphopoda and basal protobranch Bivalvia (Mollusca)
Provedor de dados: 84
Autores: Simone,Luiz Ricardo L.
This study deals with detailed morphology and anatomy of 4 species of Scaphopoda and 5 species of protobranch Bivalvia. Both classes are traditionally grouped in the taxon Diasoma, which has been questioned by different methodologies, such as molecular and developmental. This study is developed under a phylogenetic methodology with the main concern in performing it in an intelligible and testable methodology. The analyzed Scaphopoda species came from the Brazilian coast and belong to the family Dentaliidae [(1) Coccodentalium carduus; (2) Paradentalium disparile] and Gadiliidae; [(3) Polyschides noronhensis, n. sp. from Fernando de Noronha Archipelago; (4) Gadila braziliensis]. These species represent the main branches of the class Scaphopoda. From...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Scaphopoda; Bivalvia; Diasoma; Phylogeny; Morphology.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492009003200001

Isognomon bicolor (C.B. Adams) (Bivalvia, Isognomonidae): primeiro registro para o Brasil, redescrição da espécie e considerações sobre a ocorrência e distribuição de Isognomon na costa brasileira
Provedor de dados: 104
Autores: Domaneschi,Osmar; Martins,Claudio Mantovani.
The bivalve family Isognomonidae is represented in the Western Atlantic by the living genera Crenatula Lamarck, 1804 and Isognomon Solander, 1786. I. alatus (Gmelin, 1791) and I. radiatus (Anton, 1839) are the only Isognomonidae referred to the Brazilian malacofauna. The present work refers to the first record and geographic distribution of I. bicolor along the Brazilian littoral, and presents a re-description of the species based on shell characters, which include those of the prodissoconch. The occurrence of I. alatus and I. radiatus along the Brazilian littoral could not be confirmed, despite the intensive search for these Isognomonidae from Rio Grande do Norte through Rio Grande do Sul.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bivalvia; Isognomonidae; Isognomon bicolor; Re-description; Geographic distribution; Brazil.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000200017

Ultraestrutura do espermatozóide de Protothaca pectorina (Lamarck) (Mollusca, Bivalvia) do litoral norte do Brasil
Provedor de dados: 104
Autores: Matos,Edilson; Matos,Patricia; Casal,Graça; Azevedo,Carlos.
The ultrastructure of spermatozoa of the Protothaca pectorina (Lamarck, 1818) is described. The most significam differences were found in the structure and arreangement of the acrosomes, with contains two types of material, one fibrilar, the other electrondense granular. It is concluded that sperm ultrastructure is of the primitive type.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mollusca; Bivalvia; Protothaca peclorina; Ultrastructure; Spermatozoa.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751997000400002

Distribuição sazonal e reprodução de Neocorbicula limosa (Maton) (Bivalvia, Corbiculidae) no Lago Guaíba, Rio Grande do Sul, Brasil
Provedor de dados: 104
Autores: Focht,Teimo; Veitenheimer-Mendes,Inga L.
Neocorbicula limosa (Maton, 1811) is the only species of that South American genus that occurs in the hydrographic basins of Rio Grande do Sul State, Brazil. Seasonal quantitative collections between 1995 and 1996 in the lake Guaiba were accomplished, with the aim to know the reproductive dynamics and environmental preferences of populations of N. limosa. A substratum constituted by medium to coarse sands at an 'average depth around 2m shown to be favorable to installation of population of N. limosa. The largest population density (2.496 ind./m²) was registered in summer. Embryos at various development phases were registered inside individuals. The shell sizes of these individuals started from 8mm in length. The embryo's size could reach ¼ of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bivalvia; Corbiculidae; Neocorbicula limosa; Guaíba Lake; Southern Brazil; Seasonal Observation.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000100002

Bivalves Antárticos e Subantárticos coletados durante as Expedições Científicas Brasileiras à Antártica I a IX (1982-1991)
Provedor de dados: 104
Autores: Narchi,Walter; Domaneschi,Osmar; Passos,Flávio Dias.
The bivalves collected in the Western Antarctic and Subantarctic waters by scientists of the Instituto Oceanográfico - USP during the Scientific Brazilian Expeditions to Antarctical-IX are characterised through its conchiliological features, illustrated and their occurrence plotted in maps. A species of bivalve collected by scuba divers of the IO-USP on the Napier Rock, Admiralty Bay, King George Island during the Expeditions XV and XVI is also considered in this work. The material identified is representative of 25 species distributed among three families and four genera of Protobranchia, three farnilies and five genera of Pteriornorpha, five families and six genera of Heterodonta, and four families and four genera of Anomalo desmata. The main scope of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bivalvia; Mollusca; Antarctic; Subantarctic; Taxonomy.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000300003

Anatomia funcional de Protothaca (Leukoma) pectorina (Lamarck) (Bivalvia, Veneridae)
Provedor de dados: 104
Autores: Guerón,Cordélia de Oliveira Castro; Narchi,Walter.
Protothaca (Leukoma) pectorina (Lamarck, 1818) lives from the West Indies to Santa Catarina State, Brazil, in soft muddy beaches in quiet waters of protected bays with little amounts of suspended material. A study of the functional anatomy of P. pectorina and its ecological aspects were undertaken. The anatomy and functioning of the stomach and the mechanisms for selection of particles were observed. The siphons, ctenidia, labial palps and stomach were analised and related to the animal's natural environment. The siphons belong to type B (Yonge 1948), the ctenidia to type C (1a) (Atkins 1937). The ctenidia are homorhabdic (Ridewood 1903) and the stomach belongs to type V (Purchon 1960).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bivalvia; Veneridae; Protothaca pectorina; Functional anatomy; Brazilian littoral.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000400011

Gloquídio de Diplodon martensi (lhering) (Mollusca, Bivalvia, Hyriidae) e seu ciclo parasitário
Provedor de dados: 104
Autores: Mansur,Maria Cristina Dreher.
Conchological and anatomical studies of the glochidium of Diplodon martensi (lhering, 1893) were performed on samples collected in a small river, tributary from the Caí River, that belong to the Jacuí River sub-basin in south-eastern Brazil. The parasitic development of the glochidium was observed in laboratory on a small cichlid fish Gymnogeophagus gymnogenys (Hensel, 1870).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mollusca; Bivalvia; Unionoida; Hyriidae; Diplodon martensi; Glochidium parasitic cicle.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000600019

Gametogênese e dinâmica da reprodução de Anodontites trapesialis (Lamarck) (Unionoida, Mycetopodidae) no lago Baía do Poço, planície de inundação do rio Cuiabá, Mato Grosso, Brasil
Provedor de dados: 104
Autores: Callil,Cláudia T.; Mansur,Maria C. D.
O ciclo reprodutivo de Anodontites trapesialis foi estudado entre os meses de maio de 1998 a abril de 1999. Análises quantitativas dos elementos celulares revelaram que a espécie é exclusivamente hermafrodita com folículos masculinos e femininos separados. A gametogênese é contínua com picos de maturação e eliminação de gametas durante a estação seca. A ovogênese tem seu período de maturação máxima em abril e maio, momento em que óvulos maduros são observados preenchendo os folículos e gonoductos. A espermatogênese foi reconhecida por uma fase proliferativa com células em desenvolvimento e apresentou seu período de maturação entre abril e julho. Estas células se diferenciaram dando origem às mórulas espermáticas e espermatozóides livres, organizando a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bivalvia; Espermatozeugmatas; Mórulas espermáticas; Hermafroditismo; Pantanal.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752007000300033

Anatomia funcional de Perna perna (Linné) (bivalvia, Mytilidae)
Provedor de dados: 104
Autores: Narchi,Walter; Galvão-Bueno,Mario Sérgio.
Perna perna (Linné, 1758) occurs on the Atlantic littoral from Venezuela to Uruguay. The main organ systems were studied in the living animais, particular attention being paid to the ciliary feeding and cleansing mechanisms in the mantle cavity. The anatomy, functioning of the stomach and the ciliary sorting mechanisms are described. The siphons belong to type A (Yongf. 1948b), the ctenidia to type B( 1) (Atkins 1936c) and the stomach is of type III (Purchon 1957) or Section I (Dinamani 1967) with sorting mecanisms of type A and B (Reid 1965). A general comparison was made between the genera of the Mytilidae known and some features of Mytella Soot-Ryen, 1955.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bivalvia; Mytilidae; Perna perna; Functional anatomy; Brazilian littoral.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751997000100014

Estrutura fina do espermatozóide de Tagelus plebeius (Lightfoot) (Mollusca, Bivalvia) do litoral norte do Brasil
Provedor de dados: 104
Autores: Matos,Edilson; Matos,Patrícia; Casal,Graça; Azevedo,Carlos.
It is described the sperm ultraestructure differentiation during spermiogenesis of Tagelus plebeius (Lightfoot, 1786). The spermatozoon is an uniflagellated cell of the primitive type. The head region contains a rounded or conical nucleus surrounded by acrosome. The middle piece contains four mitochondria which are arranged around the axoneme. The flagellum contains the usual microtubular axoneme.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mollusca; Bivalvia; Tagelus plebeius; Ultrastructure; Spermatozoa.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751997000300010

PARÁMETROS ESTRUCTURALES DE DOS POBLACIONES DE Crassostrea rhizophorae (OSTREIDAE) EN BAHÍA CISPATÁ, CARIBE COLOMBIANO
Provedor de dados: 37
Autores: LÓPEZ-SÁNCHEZ,Clara Marcela; MANCERA-PINEDA,José Ernesto.
RESUMEN La ostra del mangle es una especie de gran importancia ecológica y comercial en muchos lugares del Caribe. En Bahía de Cispatá, Colombia, no obstante, representa el sustento económico de un importante grupo de pescadores se carece de planes de manejo que regulen su extracción. El objetivo del presente estudio fue el de establecer la estructura poblacional de Crassostrea rhizophorae en Bahía Cispatá, como insumo básico para la formulación futura de planes de manejo de la especie. Debido a las diferencias fenotípicas observadas entre los individuos de los lugares muestreados, se obtuvieron secuencias del gen COI, concluyendo que todos los individuos corresponden a la especie Crassostrea rhizophorae. Con base en las características morfológicas se...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bivalvia; Ciénagas; Ecosistemas costeros; Lagunas costeras; Mollusca; Valor ambiental.
Ano: 2019
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2019000200361

Alterações na dieta de Pterodoras granulosus (Valenciennes, 1833) (Osteichthyes, Doradidae) devido a variação na abundância de uma espécie invasora de bivalve no reservatório de Itaipu, Brasil
Provedor de dados: 3
Autores: Luz, Karla Danielle Gaspar da; UEM; Fugi, Rosemara; UEM; Abujanra, Fabiane; UEM; Agostinho, Angelo Antonio; UEM.
Foram avaliadas as alterações na dieta de Pterodoras granulosus (Osteichthyes, Doradidae), no reservatório de Itaipu, no período de 1994 a 1998, associadas às alterações na abundância de um bivalve invasor, Corbicula fluminea, considerando-se dois eventos: (i) a explosão de C. fluminea no reservatório a partir de 1994, e (ii) a mortandade desse bivalvia em função das flutuações do nível de água a partir de julho/96. Os conteúdos estomacais, foram analisados pelos métodos de ocorrência e volumétrico, combinados no Índice Alimentar. A análise mostrou que C. fluminea foi o principal alimento nos anos de 94/95/96, representando aproximadamente 90% da dieta. Em 1997, houve uma queda no consumo de C. fluminea (39% da dieta), concomitante a um incremento no...
Palavras-chave: 2.00.00.00-6 Ciências Biológicas dieta; Pterodoras granulosus; Bivalvia; Reservatório de Itaipu 2.00.00.00-6 Ciências Biológicas.
Ano: 2002
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2315

El Género Nodipecten Dall (Bivalvia, Pectinidae) en el Neógeno de la Patagonia (Argentina)
Provedor de dados: 41
Autores: del Río,Claudia J.
El registro más antiguo del género Nodipecten Dall corresponde al Mioceno temprano alto, momento durante el cual tuvo, de acuerdo al registro fosilífero conocido hasta el momento, una distribución discontinua sobre el litoral atlántico occidental, registrándoselo en Patagonia y en la región caribeña. A fines del Mioceno medio se extinguió en Patagonia y desde entonces permaneció restringido a las latitudes tropicales del continente americano hasta hoy, expandiéndose al área tropical del Pacífico oriental en el Mioceno tardío. Su asociación a taxones paratropicales en Patagonia indica el desarrollo de aguas cálido-templadas en la región, reflejando el Óptimo Climático del Neógeno y su extinción en la región y su retracción a latitudes tropicales coincidió...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Terciario; Mioceno; Mollusca; Bivalvia; Pectinidae; Nodipecten; Lyropecten; Patagonia.
Ano: 2006
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142006000400009

Molluscan assemblages from the marine Holocene of Uruguay: composition, geochronology, and paleoenvironmental signals
Provedor de dados: 41
Autores: Martínez,Sergio; Rojas,Alejandra; Ubilla,Martín; Verde,Mariano; Perea,Daniel; Piñeiro,Graciela.
Dates of marine Holocene molluscs from Uruguay (Villa Soriano Formation) range from 6849 to 1858 cal. years BP. There are no significative gaps among the different ages obtained, with the exception of the interval 2276-2830 calculated years BP. Two kinds of concentrations are distinguished: autochthonous, for which a low energy depositional environment is inferred, and parautochthonous, deposited in foreshore and nearshore high-energy environments. Results of different types of multivariate analyses on presence-absence and abundance data show that only three localities are clearly differentiated from the others. The discrimination of two of them (Arazatí, Las Cañas) is explained by the presence of only one or two species, but the third (Punta Rasa) is the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Uruguay; Holocene; Paleoecology; Shell-beds; Mollusca; Bivalvia; Gastropoda.
Ano: 2006
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142006000200009

Bivalves from the Triassic-Jurassic transition in northern Spain (Asturias and western Basque-Cantabrian Basin)
Provedor de dados: 41
Autores: Márquez-Aliaga,Ana; Damborenea,Susana; Gómez,Juan José; Goy,Antonio.
Bivalve mollusks from the Triassic-Jurassic transition collected in eight localities in Asturias and the western Basque-Cantabrian Basin (Palencia province) are systematically revised. Preservation is poor at all localities. The dominant Rhaetian bivalves are Isocyprina concentrica (Moore) and Bakevellia (Bakevelloides) praecursor (Quenstedt). These species, together with Isocyprina cf. ewaldi (Bornemann), Pteromya cf. crowcombeia (Moore), Pseudoplacunopsis alpina (Winkler), and Modiolus? sp. (cf. minimus J. Sowerby), with a specimen of Arcestidae (?), belong to an assemblage similar to that found in the Westbury and Lilstock formations (Penarth Group) in the late Rhaetian of southern England. The most abundant Hettangian species is Isocyprina...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Triassic-Jurassic boundary; Rhaetian; Hettangian; Bivalvia; Asturias; Palencia; Spain.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142010000200004

Late Maastrichtian-Danian Mytilids and Pinnids (Mollusca: Bivalvia) from Northern Patagonia, Argentina
Provedor de dados: 41
Autores: Griffin,Miguel; Parras,Ana; Casadío,Silvio.
The Upper Cretaceous - lower Paleogene rocks from northern Patagonia yield a rich fauna of marine mollusks that may be useful in elucidating paleobiogeographic and paleoenvironmental changes taking place across the K/P boundary in the region. Most of the mollusk faunas remain poorly understood, as the preservation is generally deficient. This paper describes three new species of mytilids (Septifer mayai n. sp., Mytilaster ? edseli n. sp. and Gregariella amara n. sp.), and records four species of pinnids, one of which is new (Plesiopinna pampeana n. sp.). All the material comes from the Maastrichtian Jagüel Formation, and the Maastrichtian/Danian Roca Formation, exposed in the provinces of Río Negro, Mendoza and La Pampa (Argentina). A survey of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bivalvia; Mytilids; Pinnids; Cretaceous/Paleogene boundary; Argentina.
Ano: 2008
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142008000100009

Freshwater mussels from South America: state of the art of Unionida, specially Rhipidodontini
Provedor de dados: 49
Autores: Miyahira,Igor Christo; Santos,Sonia Barbosa dos; Mansur,Maria Cristina Dreher.
Abstract Unionida is the most diverse clade of freshwater bivalves. Among the groups occurring in South America, one with the highest number of species is Rhipidodontini (Hyriidae, Unionida, Paleoheterodonta, Bivalvia). However several issues remains on taxonomy and systematic of this group, leading to problems on species identification, description, as also as a limiting factor to other type of studies (e.g., ecology, conservation,…). In this paper is presented a synthesis of available knowledge about Diplodon Spix in Wagner, 1827 and Rhipidodonta Mörch, 1853 in South America, as a first step in order to a better understating of Rhipidodontini. The evaluation of different authors exposes the little agreement between them that resulted in a sort of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diplodon; Rhipidodonta; Hyriidae; Bivalvia; Freshwater bivalve.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000400601

Inventory of mollusks from the estuary of the Paraíba River in northeastern Brazil
Provedor de dados: 49
Autores: Lima,Silvio Felipe Barbosa; Lucena,Rudá Amorim; Santos,Galdênia Menezes; Souza,José Weverton; Christoffersen,Martin Lindsey; Guimarães,Carmen Regina; Oliveira,Geraldo Semer.
Abstract: Coastal ecosystems of northeastern Brazil have important biodiversity with regard to marine mollusks, which are insufficiently studied. Here we provide an inventory of mollusks from two sites in the estuary of the Paraíba River. Mollusks were collected in 2014 and 2016 on the coast and sandbanks located on the properties of Treze de Maio and Costinha de Santo Antônio. The malacofaunal survey identified 12 families, 20 genera and 21 species of bivalves, 17 families, 19 genera and 20 species of gastropods and one species of cephalopod. Bivalves of the family Veneridae Rafinesque, 1815 were the most representative, with a total of five species. Gastropods of the family Littorinidae Children, 1834 had the greatest species richness. The most abundant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity; Mollusca; Gastropoda; Bivalvia; Cephalopoda; Tropical coastal ecosystems.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000100302

Veneridae (Mollusca, Bivalvia) da costa norte do Estado de São Paulo, Brasil
Provedor de dados: 49
Autores: Denadai,Márcia Regina; Arruda,Eliane P.; Domaneschi,Osmar; Amaral,A. Cecília Z.
Coletas intensivas da fauna bentônica marinha da costa norte do Estado de São Paulo, realizadas pelos programas de pesquisa "Fauna de Praia/UNICAMP" de agosto de 1995 a julho de 1997 e "Biota/FAPESP" de março de 2001 a dezembro de 2002 recolheram 2769 exemplares pertencentes a dezesseis espécies, doze gêneros e sete subfamílias. A caracterização de cada espécie foi ampliada com redescrição e ilustrações detalhadas, baseadas nos caracteres da concha. Tabelas comparativas dessas características e uma chave dicotômica de identificação das subfamílias são apresentadas neste estudo.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Veneridae; Bivalvia; Litoral do Estado de São Paulo; Biodiversidade; Taxonomia.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032006000300011

Chave pictórica para identificação dos bivalves do baixo Rio Aripuanã, Amazonas, Brasil (Sphaeriidae, Hyriidae e Mycetopodidae)
Provedor de dados: 49
Autores: Pimpão,Daniel Mansur; Mansur,Maria Cristina Dreher.
A partir de moluscos bivalves coletados principalmente nos períodos de seca de 2004 e 2007, no curso inferior do Rio Aripuanã, afluente do Madeira na região amazônica, foi elaborada uma chave pictórica para identificação das espécies. Foram identificados 11 táxons, sendo dez até o nível específico.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chave pictórica; Mollusca; Bivalvia; Rio Aripuanã; Amazônia.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000300032

New records of Bentharca asperula (Dall, 1881) (Mollusca, Bivalvia, Arcidae) from Brazil
Provedor de dados: 49
Autores: Passos,Flávio Dias; Birman,Adolpho.
Specimens of Bentharca asperula (Dall, 1881) were obtained from deep waters of the coasts of the Rio de Janeiro and São Paulo States, and their shells described, illustrated and compared with descriptions and illustrations obtained from the literature. This species has a small strongly inequilateral shell, trapezoidal in outline and expanded ventro-posteriorly; their umbos are placed at about 1/3 of the anterior length of their straight hinge line. The external sculpture consists of irregular spaced concentric ridges, intercepted by fine radiating striae; the periostracum is hairy, forming a cover as a thatch. Hinge teeth are small, disposed in two series interrupted by the ligament. With this finding of living specimens from the Bacia de Campos, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bentharca asperula; Brazil; Arcidae; Bivalvia; Mollusca.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000400032

First inventory of benthic mollusks associated with the reef ecosystems of Morro de São Paulo on Tinharé Island in northeastern Brazil
Provedor de dados: 49
Autores: Lima,Silvio Felipe Barbosa; Lima,Bianca Vieira; Abreu,Evandro Cosmo; Oliveira,Geraldo Semer Pomponet; Lucena,Rudá Amorim; Mendonça,Luana Marina de Castro; Prata,Jéssica; Souza,J. Weverton S. de.
Abstract: The reef ecosystems of Morro de São Paulo are located in the Tinharé-Boipeba Environmental Preservation Area which was established in 1992 in the state of Bahia, Brazil. Despite this area has been created more than two decades ago, no study has provided knowledge on the invertebrate biodiversity associated with such reef ecosystems. The present investigation provides the first inventory of benthic mollusks associated with the reef ecosystems of Morro de São Paulo based on the collection of living specimens and fresh empty as well as some worn shells. Mollusks were sampled in January 2015 and August 2016 through intensive searches from the intertidal to shallow subtidal habitats of the reefs on three beaches of Morro de São Paulo. Taxonomic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alpha diversity; Malacofaunal composition; Gastropoda; Bivalvia; Polyplacophora.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000400312

Freshwater mollusks and environmental assessment of Guandu River, Rio de Janeiro, Brazil
Provedor de dados: 49
Autores: Miyahira,Igor Christo; Carneiro,Jéssica Beck; Gonçalves,Isabela Cristina Brito; Lacerda,Luiz Eduardo Macedo de; Oliveira,Jaqueline Lopes de; Vasconcelos,Mariana Castro de; Santos,Sonia Barbosa dos.
Abstract The Guandu River Basin is extremely important to state of Rio de Janeiro, as a water supplier of several municipalities. However, the malacological knowledge and environmental status is not well known to this basin. The aim of this paper is to present an inventory of freshwater mollusks, as well as an environmental assessment through a Rapid Assessment Protocol, of ten sampling sites at Guandu River basin in six municipalities (Piraí, Paracambi, Japeri, Seropédica, Queimados and Nova Iguaçu). Thirteen species of molusks were found, eight native (Pomacea maculata, Biomphalaria tenagophila, Gundlachia ticaga, Gundlachia radiata, Omalonyx matheroni, Diplodon ellipticus, Anodontites trapesialis and Eupera bahiensis) and five exotics (Melanoides...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gastropoda; Bivalvia; Mollusca; Exotic species; RAP.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000300305