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Combined effect of temperature and salinity on osmoregulation of juvenile and subadult Penaeus stylirostris ArchiMer
Lemaire, Pierrette; Bernard, Eric; Martinez-paz, J; Chim, Liet.
In New Caledonia, the "syndrome 93," which results in mass mortalities of farmed shrimp Penaeus stylirostris, occurs during the transitional and the cold seasons. The transitional season is characterized by an important fall in the average water temperature from 28 to 19 degreesC in 2 weeks. Besides this marked temperature fall, there are also nyctemeral temperature changes of up to 7 degreesC in 12 h. The cold season is characterized by an average water temperature of 19 degreesC with extreme lows of 14 degreesC. The objective of this study was to determine the effect of temperature and its variations on the osmoregulatory capacity of juvenile (7-10 g average weight) and subadult (25 g average weight) shrimps subjected to conditions of different salinity....
Tipo: Text Palavras-chave: Temperature; Salinity; Osmoregulatory capacity; Penaeus stylirostris; Shrimp.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/2002/publication-395.pdf
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Expériences sur l'influence des sédiments du bassin d'élevage sur la physiologie de Penaeus stylirostris. Rapport des travaux menés du 26 novembre au 7 décembre 1955 à la Station Saint Vincent ArchiMer
Cochard, Jean-claude; Goarant, Cyrille; Boglio, Eric; Lemonnier, Hugues.
The influence of the soil quality of culture pond on the physiological state of Penaeus stylirostris reared in earthen shrimp pond in New Caledonia was investigated by the measurement of the osmoregulatory capacity and magnesium hemolymph concentration of samples of 20 of these shrimp captured in the pond and maintained for 24 or 48h in cages laid on the bottom. A first experiment was affected by the occurrence of a pathology caused by Vibrio penaeicida probably due to initial handling stress. The second experiment showed that the osmoregulatory capacity is depresssed as a function of the soil quality : the more it is reduced the more the depression is important.
Tipo: Text Palavras-chave: Crevettes; Penaeus; P. stylirostris; Nouvelle Calédonie; Capacité osmorégulatrice; Stress; Sédiment; Shrimp culture; Penaeus; P. stylirostris; New Caledonia; Osmoregulatory capacity; Stess; Soil.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/00426/53779/54664.pdf
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