|
|
|
| Registros recuperados: 991 | |
|
| |
|
|
| 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 |
| |
|
|
| Walling, Emilie; Vourey, Elodie; Ansquer, Dominique; Beliaeff, Benoit; Goarant, C.. |
| Aims: A description of bacterial pathogens in shrimp ponds is necessary to understand their pathogenesis. Vibrio nigripulchritudo was shown to contain saprophytic and pathogenic strains among New Caledonian isolates. We established a method to map the development of V. nigripulchritudo in pond sediments at three different genetic levels: the species level, then at the pathogenic cluster level and finally at the plasmid level, present only in all highly pathogenic isolates. Methods and Results: PCR methods were applied to shrimp pond sediments both before and after a mortality outbreak. Using crude samples, the species V. nigripulchritudo is not detected at first (0/42 samples at day 56 post stocking) but appears frequently in the sediments after the... |
| Tipo: Text |
Palavras-chave: Detection; Diagnosis; Diseases; Ecology; PCR; Plasmids; Soil; Virulence. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00004/11484/8177.pdf |
| |
|
| |
|
|
| Alayse, Anne-marie. |
| With the advent of deep submergence research vessels (DSRVs) biological and ecological studies of ocean deeps have made great strides. Especially these submersibles allowed to conduct physiological and biochemical experiments on benthic fauna directly on the bottom or on board with alive retrieved animals. A second great interest is the possibility to work in chaotic areas and on microenvironments. Without DSRVs most of measurements and observations obtained on hydrothermals vents would had been impossible. We will present the different equipment designed for the two French DSRVs used during the cruises conducted by the Departement "Environnement Profond" de l'IFREMER to study hydrothermal and "normal" deep-sea ecosystems. We will discuss the new devices... |
| Tipo: Text |
Palavras-chave: Oceanography; Hydrothermal springs; Ecosystems; Abyssal zone; Cruises; Ecology; Biology; Deep water; Unmanned vehicles; Manned vehicles. |
| Ano: 1990 |
URL: http://archimer.ifremer.fr/doc/1990/acte-1146.pdf |
| |
|
| |
|
|
| Maillard-quistoudt, C.; Degros, N.; Janquin, Marie-andree; Delesmont, E; Delesmont, Régis; Grossel, Hubert; Le Fevre-lehoerff, Geneviève; Woehrling, Daniel; Martin, Jocelyne; Tetard, Alain; Dewarumez, Jean-marie; Menu, D.. |
| La nouvelle stratégie mise en place au cours de la 9ème période de surveillance de Gravelines consiste à abandonner l'étude temporelle caractérisée par un grand nombre de campagnes pour privilégier les variations spatiales, pour trois situations annuelles printanière, estivale et automnale, afin de comparer l'ensemble des paramètres aux quatre stations entrée de centrale, rejet, point impacté à T = + 3°C et point de référence T = O°C (hors impact). Les domaines d'études sont: la climatologie, le fonctionnement de la centrale, l'hydrologie, la microbiologie, le plancton, l'halieutique, le benthos. Dans tous les domaines l'effort est mis sur les estimations de déficit de biomasses au rejet d'une part et les compétitions intréspécifiques quand le milieu... |
| Tipo: Text |
Palavras-chave: Gravelines; Centrale nucléaire; Ecologie; Milieu marin; Gravelines; Nuclear power plant; Ecology; Marine environment. |
| Ano: 1988 |
URL: http://archimer.ifremer.fr/doc/00005/11585/8211.pdf |
| |
|
| |
|
|
| Chomerat, Nicolas; Garnier, Robert; Bertrand, Céline; Cazaubon, Arlette. |
| The Bolmon lagoon (South of France) is an oligo-mesohaline coastal lagoon that has undergone intense eutrophication in the past decades, resulting from a strong concentration of human activities in its drainage basin. Consequently, it exhibits some characteristics typical of an advanced trophic state; namely, the disappearance of submerged vegetation, the permanently intense phytoplankton growth and the recurrence of cyanoprokaryote blooms. As cyanoprokaryote dominance in south-temperate saline lagoons is little reported, we carried out this study in order to understand the seasonal variations in the phytoplankton composition and biomass, and to analyse the influence of environmental parameters such as salinity, nutrients and climate on the seasonal... |
| Tipo: Text |
Palavras-chave: Turbid state; Pseudanabaena limnetica; Planktothrix agardhii; Phytoplankton; Mediterranean area; Cyanoprokaryotes; Ecology; Lagoon; Brackish water. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2593.pdf |
| |
|
|
| Thebault, Anne; Cochennec, Nathalie; Arzul, Isabelle; Renault, Tristan. |
| In marine molluscan aqauculture, infectious agents are regularly cited in literature associated with mass mortalities as emergin diseases, but the causal link is often based on very few argumeents. 24 ways to demonstrate causal links from epidemiolgical, ecological and marine pathology literature feasible for marine molluscs are given. Those criteria were applied to the ewample of Bonamia ostreae for Ostrea edulis and Herpesvirus for spats and larvae of Crassostrea gigas. Three principles could be applied in marine field for choosing criteria wich should be taken in priority : the demonstration must be given at three levels of organization, organ individual, population, the demonstration must keeps maximum epidemiological criterias, and then mixes... |
| Tipo: Text |
Palavras-chave: Herpesvirus; Bonamia ostrea; Crassostrea gigas; Ostrea edulis; Marine pathology; Ecology; Epidemiology; Infectious agents; Molluscan aquaculture. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/2003/acte-3341.pdf |
| |
|
| |
|
| |
|
|
| Kulbicki, Michel; Beets, James; Chabanet, Pascale; Cure, Katherine; Darling, Emily; Floeter, Sergio R.; Galzin, Rene; Green, Alison; Harmelin-vivien, Mireille; Hixon, Mark; Letourneur, Yves; De Loma, Thierry Lison; Mcclanahan, Tim; Mcilwain, Jennifer; Moutham, Gerard; Myers, Robert; O'Leary, Jennifer K.; Planes, Serge; Vigliola, Laurent; Wantiez, Laurent. |
| Lionfish (Pterois volitans and P. miles) have become a major concern in the western Attantie and Caribbean since their introduction in the 1980s. Invasive lionfish can reach very high population densities on coral reefs in their invaded range, yet there are few data from their native range in the Indo-Pacific for comparison. We compiled data on the geographical distribution and density of Indo-Pacific lionfishes in their native ranges from published and unpublished underwater visual censuses and field collections. We found that lionfish in their native Indo-Pacific range are unevenly distributed, with higher densities in the Indian Ocean than in the Pacific. Lionfish densities increase significantly with increasing latitude, and are significantly higher in... |
| Tipo: Text |
Palavras-chave: Pterois; Indo-Pacific; Ecology; Visual census; Larvae; Invasive species. |
| Ano: 2012 |
URL: https://archimer.ifremer.fr/doc/00207/31781/30193.pdf |
| |
|
|
| Färber Lorda, Jaime; Ceccaldi, Hubert J.. |
| Morphological differences associated with sex or stage, together with total lipids and carotenoids, were studied in Euphausia superba as possible indicators of physiological condition. E. superba displays sexual dimorphism during growth. A group of mature males, called Males II herein, has a greater abdominal length, suggesting that they are faster swimmers, a feature implying higher metabolic rates and a higher demand for protecting pigments like carotenoids. Mature Males II have proportionally lower lipids but higher total lipid-soluble carotenoids, a counterintuitive finding. Males II also have bigger eyes. Significant regressions with carotenoids were found for wet weight, abdominal length, and eye diameter. On a spatial analysis, population... |
| Tipo: Text |
Palavras-chave: Developmental biology; Ecology. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00643/75471/76296.pdf |
| |
|
|
| Girard, Fanny; Sarrazin, Jozee; Arnaubec, Aurelien; Cannat, Mathilde; Sarradin, Pierre-marie; Wheeler, Benjamin; Matabos, Marjolaine. |
| The deep sea is characterized by a wide range of landscapes, including complex features where topography and currents interact to form highly heterogeneous habitats. In addition to a complex topography, hydrothermal vent environments are characterized by strong environmental gradients that structure the spatial distribution of biological communities. The role of vent fluid temperature and chemical composition on species distribution is now well understood, but investigations on the effects of the complex sulfide edifice topography are scarce. Here, we used a novel approach combining 3D photogrammetric reconstruction, in situ environmental measurements and modeling to characterize assemblage distribution on the active edifice Eiffel Tower (Lucky Strike,... |
| Tipo: Text |
Palavras-chave: Mid-Atlantic Ridge; Eiffel Tower; EMSO-Azores; Ecology; Imagery; 3D photogrammetry; Deep-sea observatories; Topographic effects. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00640/75211/75349.pdf |
| |
|
| |
|
|
| Vann, Cd; Cronin, Tm; Dwyer, Gs. |
| Population ecology and shell chemistry were studied in the phytal ostracode Loxoconcha matagordensis (Swain 1955) collected from Zostera marina seagrass beds in the Chesapeake Bay to provide seasonal constraints on shell secretion time for paleothermometry. Population density and age structure were defined by two main breeding cycles that occurred between 01 to 15 June and 02 to 16 August 2001. The time interval between breeding cycles was similar to2 months and total juvenile standing crop increased almost three-fold between the first and second breeding cycles. Dark brown over-wintered adults comprised the majority of the population between March and April 2001, while newly secreted translucent adults were predominant between June and September. Seasonal... |
| Tipo: Text |
Palavras-chave: Ostracoda; Paleoclimatology; Ecology; Minor elements; Holocene; Seagrass. |
| Ano: 2004 |
URL: https://archimer.ifremer.fr/doc/00229/33995/32356.pdf |
| |
|
|
| Gõni, R; Latrouite, Daniel. |
| Palinurus elephas and Palinurus mauritanicus are the only species of the family Palinuridae that occur in the Northeast Atlantic and Mediterranean. Of the two, Palinurus elephas is the most abundant and accessible and has traditionally been the preferred target of lobster fisheries throughout its range. Palinurus mauritanicus has a deeper distribution and has been an important target of fisheries mainly in the Central Eastern Atlantic. The high unit value and the relative scarcity of these species have been important obstacles to research and knowledge of their biology, ecology and fisheries is limited. Nevertheless, over time a considerable number of studies has been conducted, though most of these are contained in university theses or in publications of... |
| Tipo: Text |
Palavras-chave: Fisheries; Ecology; Biology; European waters; Spiny lobsters; Review. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-3625.pdf |
| |
|
|
| We are pleased to welcome you to at the first Symposium on Metabolic organization in Brest, 19-22 April, 2009. This conference is being organized jointly by Ifremer (French Institute for the Research and Exploitation of the Sea), the Department of Theoretical Biology at Vrije Universiteit Amsterdam, the Universities of Brest (UBO), Marseille (LMGEM-UMR CNRS 6117), Caen (UMRPE2M, LBBM) and Lisbon (Instituto Superior Técnico), the IRD (French Research Institute for Development), the INRA (French National Institute for Agricultural Research), the NIOZ (RoyalNetherlands Institute for Sea Research), the IMARES Wageningen (Institute for Marine Resources and Ecosystem Studies), as all these research teams are involved in research on DEB theory. You are 81 persons... |
| Tipo: Text |
Palavras-chave: Ecology; Bivalve; Chemistry; Ecotoxicology; Physiology; Dynamic energy budget; Biology. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/acte-6790.pdf |
| |
|
|
| Jacq, E; Moal, Jeanne; Samain, Jean-francois; Corre, S; Daniel, J; Nicolas, Jean-louis; Cochard, Jean-claude; Fera, P. |
| Larval rearings were performed with seawater either freshly pumped or after storage in a pond. Concerning bacterial populations these waters were characterized by a high diversity, little sized bacteria whose few of them (1%) were cultivable on Zobell medium. In the tanks, the bacterial ecosystem was modified by the presence of antibiotics, larvae and algae: the diversity was lowered, the cellular volume was increased by a factor 2 to 5, 100% bacteria were cultivable and chloramphenicol resistant, and their metabolism changed. Taxonomic screening showed no differences among the two waters neither at the beginning nor at the end of the rearings. However, depending on the water (stored or not) differences were identified for bacterial physiology and... |
| Tipo: Text |
Palavras-chave: Marine aquaculture; Pond culture; Scallop culture; Ecology; Antibiotics; Organic matter; Grazing; Carbohydrates; Mathematical models; Modelling; Growth; Bacterial diseases; Biological production; Culture tanks; Larvae; Rearing. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/1992/acte-914.pdf |
| |
| Registros recuperados: 991 | |
|
|
|
