Results
author = "His Edouard"
Observations relatives à l'infestation de Crassostrea gigas Thunberg par le copépode parasite Mytilicola orientalis Mori dans le Bassin d'Arcachon
Author(s) :
His, Edouard
Description :
Le copépode parasite Mytilicola orientalis Mori (1935) a été rencontré pour la première fois dans le tractus digestif des C. gigas du Bassin d'Arcachon en mars1977. Au printemps, les taux d'infestation variaient de 10 à 40% sur l'ensemble de la baie. Tous les individus de tous âges (y compris le nai...
Repository :
Archimer, Archive Institutionnelle de l'Ifremer
Language(s) :
French
Déterminisme du recrutement : données préliminaires sur le développement et la survie larvaire de Crassostrea gigas
Author(s) :
His, Edouard
Description :
Hormis les facteurs anthropiques (voir références bibliographiques HIS et al .), l es facteurs nutritionnels jouent un rôle prépondérant dans le déroulement de la vie pélagique des larves de bivalves ; un déficit nutritionnel peut, à lui seul, hypothéquer les chances de captage (PERSOONE et al, 1980...
Repository :
Archimer, Archive Institutionnelle de l'Ifremer
Language(s) :
French
Croissance et spectre de tailles de six algues utilisees pour la nutrition de larves de bivalves en ecloserie, en culture non renouvelee Growth and size frequency distribution of six marine unicellular algae in batch cultures used as food for larvae of bivalve molluscs.
Description :
The growth and the size-frequency distribution of six unicellular marine algae, Isochrysis aff. galbana "Tahiti" nom. prov., Pavlova lutheri (Droop) Green, Pseudoisochrysis paradoxa nom. prov., Tetraselmis tetrathele (G.S. West) Butcher, Chaetoceros calcitrans (Paulsen) Takano et Chaetoceros gracili...
Repository :
Archimer, Archive Institutionnelle de l'Ifremer
Language(s) :
French
Developpement des veligeres de Crassostrea gigas dans le bassin d'Arcachon. Etudes sur les mortalites larvaires. Development of Crassostrea gigas larvae in the Bay of Arcachon. Study on the larval mortality.
Description :
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...
Repository :
Archimer, Archive Institutionnelle de l'Ifremer
Language(s) :
French
Le Danger des Traitements par le Sulfate de Cuivre en Zone Conchylicole : Toxicite vis-a-vis des Oeufs et des Jeunes Larves de Crassostrea gigas. The Danger of the Use of Copper Sulphate in Oyster Grounds: Toxicity to the Embryos and the Larvae of Crassostrea gigas.
Description :
Oyster farmers use a solution of copper sulphate to kill competitors and seaweeds on their oyster grounds. Experiments describe the influence of this product on embryos and D larvae of Crassostrea gigas. Concentrations above 25 g/l are toxic for embryos, and above 100 g/l disturb growth of more resi...
Repository :
Archimer, Archive Institutionnelle de l'Ifremer
Language(s) :
French
Sur un abces du manteau de Crassostrea gigas (Thunberg) On an abscess of the mantle in Crassostrea gigas (Thunberg)
Description :
An unusual abscess of the mantle is described. Microscopic examinations revealed an invasive infiltration of the vesicular connective tissue by leucocytes, and a typical pseudo-stratified epithelium.
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Un abcès du manteau est décrit chez une huître Crassostrea gigas élevée dans le bassin d'Arcachon. L...
Repository :
Archimer, Archive Institutionnelle de l'Ifremer
Language(s) :
French
Utilisation des élevages larvaires de Crassostrea gigas en écotoxicologie marine Use of larval rearing of Crassostrea gigas in marine ecotoxicology
Description :
The study of the anomalies occurring in the reproduction of Crassostrea gigas in the Arcachon Bay has been addressed through the development of some experimental protocols aimed at highlighting the action of a number of alteragenes on veligeres. The techniques used are described. They are based on t...
Repository :
Archimer, Archive Institutionnelle de l'Ifremer
Language(s) :
French
Croissance des larves de Crassostrea gigas et de Mytilus galloprovincialis en présence d'algues monocellulaires isolées du tractus digestif des véligères du milieu naturel The growth of Crassostrea gigas and Mytilus galloprovincialis larvae in relation to unicellular marine algae isolated from the gut of field veligers
Description :
The collection of Crassostrea gigas veligeres in their natural environment and the homogenate technique (HIS et al., 1985) enable the monospecific culture of nine algae which larvae feed on. Four of them could be mass-produced: Nannochloris atomus, Stichococcus bacillaris, Chlamidomonas bullosa and ...
Repository :
Archimer, Archive Institutionnelle de l'Ifremer
Language(s) :
French
Croissance et spectre de taille de trois algues en cultures non renouvelées, utilisées pour la nutrition de larves de bivalves en écloserie The growth and the size frequency of three marine unicellular algae, in batch cultures, used as food for larvae of bivalve molluscs
Description :
The different growth stages of three marine unicellular algae used in aquaculture, Isochrysis galbana, Chaetoceros calcitrans forma pumilum and tetraselmis suecica have been studied for 50 days under controlled culture conditions using a particle meter. At the same time, the size spectrum of the cel...
Repository :
Archimer, Archive Institutionnelle de l'Ifremer
Language(s) :
French
Contribution à l'étude de la qualité des eaux de rejet agricoles dans les marais charentais Contribution to the study of the quality of agricultural water discharge in charentais marshes (France)
Description :
The agricultural fresh water swamp of Moëze-Brouage, in Charente-Maritime, witnesses the replacement of cattle rearing in the grasslands by intensive farming affecting the quality of waste waters flowing into the ocean. The proximity of the oyster culture basin of Marennes-Oléron and of the ponds le...
Repository :
Archimer, Archive Institutionnelle de l'Ifremer
Language(s) :
French