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Registros recuperados: 16
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An improvement of calcium determination technique in the shell of molluscs BABT
Soído,Cristiane; Vasconcellos,Maurício Carvalho; Diniz,Antônia Gonçalves; Pinheiro,Jairo.
The complexometric method is usually applied to quantitative calcium determination in different materials; however the application of this method to calcium determination in molluscs shells infers significant interferences to the results. The snail Bradybaena similaris, a terrestrial gastropod, was used as experimental model to the improvement of this method. The shells were calcinated and dissolved in nitric acid, the hydrogen peroxide was also used to clarify the medium after the acid addition. The calcination procedure and the use of nitric acid reduced the significantly the interferences, allowing a major degree of destruction of the organic substances of the shell. The improvement of the calcium determination technique usually employed showed calcium...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Snail; Bradybaena similaris; Shell; Calcium determination technique.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000100012
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Anomalies de croissance de la coquille de Crassostrea gigas dans le bassin de Marennes -Oléron. Bilan de toris années d'observation ArchiMer
Heral, Maurice; Berthome, Jean-paul; Polanco Torres, E.; Alzieu, Claude; Deslous-paoli, Jean-marc; Razet, Daniel; Garnier, Jacqueline.
The appearance and changes of the oyster shell's gelatinous bags have been monitored since 1979. The increase in thickness that causes the growth into a "ball" can be explained by an overproduction of gel. The various environmental factors that can intervene in the secretion of gel are successively examined.
Tipo: Text Palavras-chave: Oysters; Shell; Crassostrea gigas; Huîtres; Coquille; Crassostrea gigas.
Ano: 1981 URL: http://archimer.ifremer.fr/doc/1981/acte-2943.pdf
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Calcein staining of calcified structures in pearl oyster Pinctada margaritifera and the effect of food resource level on shell growth ArchiMer
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
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Chlorinated drinking water for lightweight laying hens Arq. Bras. Med. Vet. Zootec.
Schneider,A.F.; Almeida,D.S.; Moraes,A.N.; Picinin,L.C.A.; Oliveira,V.; Gewehr,C.E..
ABSTRACT The study aimed to evaluate the effect of different levels of chlorine in drinking water of laying hens on zootechnical performance, eggs shell quality, hemogasometry levels and calcium content in tibia. 144 Hy-Line laying hens, 61 weeks old, were used distributed in 24 metabolism cages. They were subjected to water diets, for a period of 28 days, using sodium hypochlorite as a chlorine source in order to obtain the following concentrations: 5ppm (control), 20ppm, 50ppm, and 100ppm. Their performance was evaluated through water consumption, feed intake, egg production and weight, egg mass, feed conversion. Shell quality was measured by specific gravity. At the end of the experiment, arterial blood was collected for blood gas level assessment and a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chlorine; Eggs; Hemogasometry; Posture; Shell.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000601690
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Clés de détermination des thecosomata (peropoda) (mollusca opisthobranchia holoplanctoniques) de méditerranée et de l'atlantique eurafricain ArchiMer
Rampal, Jeannine.
A double identification key is presented. The first one discusses all the Thecosomata of the Mediterranean sea and the Eurafrican Atlantic ocean. The second one discusses bilateral symetric Mediterranean Thecosomata without shells. Additionnaly, the main other Thecosomata groups from the rest of the World are presented.
Tipo: Text Palavras-chave: Mediterranean sea; Determination key; Shell; Pteropoda.
Ano: 1973 URL: http://archimer.ifremer.fr/doc/1973/publication-2149.pdf
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Conchological variation in Pomacea canaliculata and other South American Ampullariidae (Caenogastropoda, Architaenioglossa) Biocell
Estebenet,Alejandra L.; Martín,Pablo R.; Silvana,Burela.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Shell; Operculum; Periostracum; Banding pattern; Apple snail.
Ano: 2006 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452006000200010
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Dating of fossil human teeth and shells from Toca do Enoque site at Serra das Confusões National Park, Brazil Anais da ABC (AABC)
KINOSHITA,ANGELA; SULLASI,HENRY L.; ASFORA,VIVIANE K.; AZEVEDO,RENATA L.; GUZZO,PEDRO; GUIDON,NIEDE; FIGUEIREDO,ANA MARIA G.; KHOURY,HELEN; PESSIS,ANNE-MARIE; BAFFA,OSWALDO.
ABSTRACT This work reports the dating of a fossil human tooth and shell found at the archaeological site Toca do Enoque located in Serra das Confusões National Park (Piauí, Brazil). Many prehistoric paintings have been found at this site. An archaeological excavation unearthed three sepulchers with human skeletons and some shells. Two Brazilian laboratories, in Ribeirão Preto (USP) and Recife (UFPE), independently performed Electron Spin Resonance (ESR) measurements to date the tooth and the shell and obtain the equivalent dose received by each sample. The laboratories determined similar ages for the tooth and the shell (~4.8 kyBP). The results agreed with C-14 dating of the shell and other samples (charcoal) collected in the same sepulcher. Therefore,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dating; ESR; EPR; Shell; Tooth; Enamel..
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000300847
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Dr Margaretha Brongersma-Sanders (1905-1996), Dutch scientist: an annotated bibliography of her work to celebrate 100 years since her birth Naturalis
Turner, S.; Cadée, G.C..
Dr Margaretha Brongersma-Sanders, palaeontologist, pioneer geochemist, geobiologist and oceanographer, Officer of the Order of Oranje Nassau was born 100 years ago (February 20th, 1905) in Kampen in The Netherlands. The fields of research that she covered during her lifetime include taxonomy of recent and fossil, principally freshwater fish; “fish kills” and mass mortality in the sea (especially of fish); taphonomy and preservation of fish; upwelling; anoxic conditions, linked to fish mortality and the origin of bituminous black shales and oil; red tides and harmful algal blooms; trace metal enrichment in recent and fossil sediments, especially the Kupferschiefer; the origin of evaporites; algal mats and stromatolites. She was the first to categorise fish...
Tipo: Article / Letter to the editor Palavras-chave: History; Biography; Bibliography; M. Brongersma-Sanders; Mass mortality research; Upwelling; Shell; 01.30; 42.81.
Ano: 2006 URL: http://www.repository.naturalis.nl/record/209643
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Microescultura da concha de Rectartemon (Rectartemon) depressus (Heynemann) (Gastropoda, Stylomatophora, Streptaxidae) Zoologia
Picoral,Mônica; Lopes-Pitoni,Vera Lúcia.
The microsculpture of Rectartemon depressus (Heynemann, 1868) shell is described on scanning electron microscope. The generics characteristics are proposed: shell's dorsal sculture formed for ribs striae radial; nuclear whorls smooth; ventral surface of the shell smooth or slightly striate; and as specifics characteristics: the number of ribs striae radial on the last world. The R. (R.) depressus presented seven or eight ribs striae radial for millimeter.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Stylommatophora; Streptaxidae; Rectartemon (Rectartemon) depressus; Photomicrography; Shell.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000100009
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Problemas de casca de ovos: identificando as causas. Infoteca-e
MAZZUCO, H.; ROSA, P. S.; JAENISCH, F. R. F..
Fatores responsaveis pelo aparecimento de ma qualidade da casca; Genotipo; Idade; Alimentacao; Nutrientes relacionados com a formacao da casca; Minerais; Vitamina D3; Agua; Sanidade; Principais enfermidades infecciosas que compromentem a qualidade da casca dos ovos; Sindrome da queda de postura (EDS); Bronquite infecciosa (BI); Bacteremias; Manejo; Controlee do peso das aves; Calculo da uniformidade; No. de aves por gaiola; Programas de luz; Temperatura ambiente.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Ovo; Casca; Qualidade; Egg; Shell; Quality.
Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/433727
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Re-characterization of the Red-lip Megalobulimus (Gastropoda: Strophocheilidae) from Peru with description of a new species Rev. Bras. Zool.
Borda,Victor; Ramírez,Rina.
Megalobulimus K. Miller, 1878 is a genus of land snails that includes the largest living snails in the Neotropics. The main goal of this paper was to review all species of Megalobulimus that have a red lip, and which are distributed in Peru. We carried out a detailed description of their shells and soft parts, and conducted a multivariate analysis on their shells and geographic distribution. There are two species reported from Peru, Megalobulimus capillaceus (Pfeiffer, 1855) and Megalobulimus separabilis (Fulton, 1903). Megalobulimus capillaceus is known to occur in three regions - San Martín, Huánuco and Cusco - but the Cusco population is undoubtedly different from all remaining populations, and is recognized herein as a new species, Megalobulimus...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anatomy; Genitalia; Land snails; Pallial complex; Shell.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000600013
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Shell of the Great Scallop Pecten maximus as a high-frequency archive of paleoenvironmental changes - art. no. Q08001 ArchiMer
Chauvaud, Laurent; Lorrain, Anne; Dunbar, Robert; Paulet, Yves; Thouzeau, Gérard; Jean, Frédéric; Guarini, Jean-marc; Mucciarone, David.
We investigate the environmental and biological controls on oxygen isotope ratios in the shells of modern Pecten maximus bivalves collected alive in the Bay of Brest (France). Seasonal delta(18)O profiles, obtained by drilling the daily calcite ridges deposited at the surface of the left valve, were compared with in situ measurements of temperature and salinity. We show that P. maximus delta(18)O values accurately track seasonal variations in bottom water temperature. Shell growth rate has no significant effect on shell delta(18)O values. Our study demonstrates that daily variations in water temperature can be reconstructed within about 0.5 degrees C. Temperatures estimated with the paleotemperature equation established in this study were compared with...
Tipo: Text Palavras-chave: Pecten Maximus; Brittany; Paleoenvironment; Estimation; Daily varition; Water temperature; Isotope; Calcite; Shell; Ëecten maximus; Paleotempérature; Variation saisonnière; Température eau; Strie croissance; Isotope; Coquille.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/publication-643.pdf
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Shell utilization pattern of the hermit crab Clibanarius vittatus (Crustacea, Anomura) in an estuary at São Vicente, State of São Paulo, Brazil Iheringia, Sér. Zool.
Sant'Anna,Bruno S.; Zangrande,Cilene M.; Reigada,Alvaro L. D.; Pinheiro,Marcelo A. A..
We evaluated the gastropod shell utilization pattern of the hermit crab Clibanarius vittatus (Bosc, 1802) at Pescadores Beach in São Vicente, State of São Paulo, Brazil. Specimens were collected monthly from May 2001 through April 2003, in the intertidal zone at low tide. The crabs were weighed and their carapace shield length measured. All gastropod shells were identified and had their shell biometric parameters (total length and aperture length) measured (mm) and weighed (g). A total of 2,344 hermit crabs (644 males, 1,594 females, 45 ovigerous females and 61 individuals in intersex), using 13 species of gastropod shells, were collected. Stramonita haemastoma (Linnaeus, 1767), Cymatium parthenopeum (Von Salis, 1793) and Achatina fulica (Bowdich, 1822)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hermit crab; Shell; Anomura; Clibanarius; Gastropoda.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212006000200018
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Sur une tumeur du manteau de Crassostrea gigas (Thunberg) ArchiMer
Comps, Michel; Quiros-ramos, Hernando; Razet, Daniel.
A tumor of the mantle has been found in Crassostrea gigas coming from oyster-bed of Marennes-Oleron basin. Near the tumor, the shells show a malformation. Microscopic examination shows the connective nature of this tumor, it was covered with an epithelium and consisted of several sinuses filled with leucocytes.
Tipo: Text Palavras-chave: Shell; Tumor; Mantle; Crassostrea gigas.
Ano: 1973 URL: http://archimer.ifremer.fr/doc/1973/publication-2150.pdf
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The shell organic content in the energy budget of Mytilus trossulus from the South Baltic ArchiMer
Wolowicz, Macciek; Goulletquer, Philippe.
La quantité de matière organique et sa valeur énergétique ont été évaluées pour les coquilles de Cerastoderma glaucum, Macoma balthica et Mytilus trossulus de la baie de Gdansk, par extraction chimique et microcalorimétrie. Le contenu moyen en matière organique varie de 0,54% chez C.glaucum, à 5,21 % chez M. balthica et 5,92% chez M. trossulus. La valeur énergétique de la matière organique de la coquille varie entre 15,15 (± 1.41) j .mg-1 chez M. balthica, 20,17 (± 1,60) j.mg-1 chez M. trossulus et 23,88 (± l ,56) j.mg-1 chez C. glaucum. Le contenu en matière organique de la coquille et sa valeur énergétique sont spécifiques, et corrélés avec la microdistribution géographique (facteurs de l'environnement) de la population, ou avec le type de sédiment. Des...
Tipo: Text Palavras-chave: Matière organique; Valeur énergétique; Coquille; Mytilus trossulus; Organic matter; Energy values; Shell; Mytilus trossulus.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/00065/17594/15118.pdf
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Аллометрия раковины двустворчатых моллюсков IBSS Repository
Заика, В. Е..
Для представителей девяти родов двустворчатых моллюсков (морских и пресноводных) приведены значения показателя степени в аллометрических уравнениях, связывающих массу раковины с общей сырой массой животного. Все исследованные случаи соответствуют положительной либо слабо отрицательной аллометрии, граничащей с изометрией. Приведенные данные расширяют фактическую основу, на которой базируется известное заключение о положительной аллометрии скелетных структур (как внутренних, так и наружных). В связи с этим, более общее значение получает и концепция автора о том, что положительная аллометрия скелета (и других опорных структур) является основной причиной отрицательной метаболической аллометрии (энергетического обмена).
Tipo: Journal Contribution Palavras-chave: Двустворчатые моллюски; Раковина; Аллометрия; Bivalve mollusks; Shell; Allometry Allometry Shells Allometry http://aims.fao.org/aos/agrovoc/c_24962.
Ano: 2004 URL: http://repository.ibss.org.ua/dspace/handle/99011/67
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