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| Registros recuperados: 164 | |
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| Bonami, Jean-robert. |
| The trembling of legs followed by increasing paralysis and eventual death, were recorded on specimens of the above sp from Sete region. EM studies of tissue showed paraspherical bodies measuring approx 61 nm with a size range of 58-65 nm. By experimentally infecting specimens with a purified viral suspension the following pathogenesis was observed: in greater than 60 per cent of the specimens, trembling of the legs began within 6 days, growing very pronounced on the 8th day, leading to a general paralysis and 9 days after the infection a mortality rate of 70-80 per cent was recorded. The following characteristics of the virus are noted: its cytoplasmic localisation, paraspherical form, size ranging from 60-70 nm and the absence of an envelope. Considering... |
| Tipo: Text |
Palavras-chave: Paralysis; Virus; Decapoda. |
| Ano: 1973 |
URL: http://archimer.ifremer.fr/doc/1973/publication-2151.pdf |
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| Lagardere, Jean-paul. |
| In the present study, the feeding habits of the bathypelagic shrimps Sergestes arcticus, S. robustus, Pasiphaea sivado, P. tarda, P. multidentata and Psathyrocaris infirma), occurring on the continental slope of the Bay of Biscay, were examined. It was concluded through the present observations that these shrimps use the pelagic resources from the environment. On the other hand, their spatial distribution in different layers prevents any trophic competition between them. The nature of the prey organisms is widely determined by the size, the efficiency of the catching techniques, but also by the possibility of special detection (the hypothesis of ocular detection of euphausiids by P. sivado). The absorption of sediment, during the rest hours, is supposed to... |
| Tipo: Text |
Palavras-chave: Decapoda; ANE Europe Biscay Bay Psathyrocaris infirma Pasiphaea multidentata Pasiphaea tarda Pasiphaea sivado Sergestes robustus Sergestes arcticus Continental slope Bathypelagic zone Ecology Predation Feeding behaviour. |
| Ano: 1975 |
URL: http://archimer.ifremer.fr/doc/1975/publication-2014.pdf |
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| Manning, R.B.; Holthuis, L.B.. |
| The West African marine brachyuran crab fauna, comprising 218 named species in 120 genera and 26 familes, is surveyed. Sixteen new genera and 24 new species are recognized. Synonymies are updated for the tropical species, and all 300 + Eastern Atlantic species are listed. Original references and synonymies are provided for all 146 Eastern Atlantic genera. Synonymies have been compiled for all 36 currently recognized families of marine crabs. Twenty-nine families are represented in the Eastern Atlantic fauna. One family, Hexapodidae Miers, 1886, and one subfamily, Camptandriinae Stimpson, 1858 (Ocypodidae) are revised at the generic level. The genera Liocarcinus Stimpson, 1871 (Portunidae), Machaerus Leach, 1818 (Goneplacidae), and Lambdophallus Alcock,... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Crustacea; Decapoda; West Arica; 42.74. |
| Ano: 1981 |
URL: http://www.repository.naturalis.nl/record/330033 |
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| Ceccaldi, H. |
| The digestive tract of crustacea is complex. It is composed of a shor t oesophagum, a stomach with two bags, and internal wall with appendags specialized in grinding of feeds. These hard mastication pieces represent the gastric mill. Setae, filters included in the stomach structure allow the separation between food particles and liquid compounds. Those one are coming over through filters and more on to the digestive gland tubules or mid gut gland. In this organ, several types of cells play specialized functions: absorption, enzyme secretion, stocking function. Some cells of a new type, with undefined function, may be neurosecretions function, have been described recently. The end of tubules of digestive gland exhibits cells with embryonic characteristics.... |
| Tipo: Text |
Palavras-chave: Decapoda; Neurosecretion; Feed; Rearing; Digestive glands; Enzymes; Stomach; Crustacean culture. |
| Ano: 1989 |
URL: http://archimer.ifremer.fr/doc/1989/acte-1486.pdf |
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| Registros recuperados: 164 | |
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