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Registros recuperados: 12 | |
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Robert, Rene; Deltreil, Jean-pierre. |
Farming of the Japanese clam Ruditapes philippinarum took place for the first time in 1980 in the Arcachon basin. After an experimentation period of about ten years, a farming strategy, taking into consideration the distinctive features found in the bay, was able to emerge. For example, in order to fight against clam predators, crabs such as Carcinus maenas, and balistes such as Balistes capriscus, vertical protection coupled with prior ground gravelling, and laying of nets over the beds during the summer months, have become necessary. The best raising technique seems to rest on early spring planting of middle size spats (T5), after checking that no brown rings are visible. If clam growth seems to be better in oceanic zones, it looks similar in other areas... |
Tipo: Text |
Palavras-chave: Basin of Arcachon; Culture methods; Growth; Predation; Balistes capriscus; Carcinus maenas; Ruditapes philippinarum; Bassin d'Arcachon; Stratégie d'élevage; Croissance; Prédation; Balistes capriscus; Carcinus maenas; Ruditapes philippinarum. |
Ano: 1990 |
URL: http://archimer.ifremer.fr/doc/1990/rapport-1652.pdf |
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Compere, P. |
The epicuticle of the crab Carcinus maenas consists in three distinct layers: the fibrous surface coat, the cuticulin layer and the inner epicuticle. Short segments of the cuticulin layer are first deposited at the top of dense plaques of the ectodermal cell membrane. Their assembling gives rise to a five-layered continuous structure of about 37 nm thick. Afterwards, the inner epicuticle is added inside close to the cuticulin layer but dense plaques are not concerned with the phenomenon. The deposition of the fibrous surface coat outside to the cuticulin layer takes place only during late postmolt stages (D2-D3). In mineralized cuticles, this typical epicuticle structure persists during all intermolt long. |
Tipo: Text |
Palavras-chave: Carcinus maenas; Malacostraca; Morphogenesis. |
Ano: 1987 |
URL: http://archimer.ifremer.fr/doc/1987/acte-1375.pdf |
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Bazin, F.; Monsarrat, P.; Bonami, Jean-robert; Croizier, G.; Meynadier, G.; Quiot, J.m.; Vago, C.. |
A new virus from the Crab Carcinus maenas has been found in the nuclei of conjunctive and blood cells. Its localization, morphology, size, morphogeny relate it to the Baculovirus group. By some aspects it appears to be related closer to the insect viruses from Oryctes rhinoceros, and to red mite viruses from Panonychus ulmi and P.citri than to the nuclear polyhedrosis of the pink shrimp Penaeus duorarum. |
Tipo: Text |
Palavras-chave: Penaeus duorarum; Panonychus citri; Panonychus ulmi; Oryctes rhinoceros; Carcinus maenas; Viruses; Viral diseases. |
Ano: 1974 |
URL: http://archimer.ifremer.fr/doc/1974/publication-2041.pdf |
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Torres, Gabriela; Charmantier, Guy; Wilcockson, David; Harzsch, Steffen; Giménez, Luis. |
Developing physiological mechanistic models to predict species’ responses to climate‐driven environmental variables remains a key endeavor in ecology. Such approaches are challenging, because they require linking physiological processes with fitness and contraction or expansion in species’ distributions. We explore those links for coastal marine species, occurring in regions of freshwater influence (ROFIs) and exposed to changes in temperature and salinity. First, we evaluated the effect of temperature on hemolymph osmolality and on the expression of genes relevant for osmoregulation in larvae of the shore crab Carcinus maenas. We then discuss and develop a hypothetical model linking osmoregulation, fitness, and species expansion/contraction toward or away... |
Tipo: Text |
Palavras-chave: Carcinus maenas; Climate change; Coastal zone; Larva; MRNA expression; Multiple stressors; Osmoregulation; Salinity; Temperature. |
Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00692/80408/83516.pdf |
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Lange, Sven. |
Ovisac secretion by the paired colleteric glands of Sacculina carcini and Heterosaccus dollfusi (Rhizocephala, Sacculinida) was documented and studied at the ultrastructural level. Preparatory to oviposition, the epithelium of each colleteric gland secretes one branched, elastic, transparent ovisac. The ovisac wall consists of a reticulated inner zone, secreted first, and a dense outer zone. After secretion, the ovisac detaches from most of the secretory epithelium but remains anchored proximally in the gland until oviposition ends. The exterior ovisac surface is predominantly smooth and impervious. Proximally, however, the surface is irregular and perforated. During oviposition the eggs enter the paired ovisacs, forcing the ovisacs through the ovipores... |
Tipo: Article / Letter to the editor |
Palavras-chave: Cirripedia; Rhizocephala; Sacculina carcini; Thoracica; Colleteric gland; Ovisac; Carcinus maenas. |
Ano: 2002 |
URL: http://www.repository.naturalis.nl/record/534314 |
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Registros recuperados: 12 | |
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