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| Induced thermotolerance and stress resistance in larvae of the freshwater prawn, Macrobrachium rosenbergii (de Man, 1879) |
| Rahman, M.M.; Wille, M.; Cavalli, R.O.; Sorgeloos, P.; Clegg, J.S. (2005). Induced thermotolerance and stress resistance in larvae of the freshwater prawn, Macrobrachium rosenbergii (de Man, 1879), in: (2005). VLIZ Coll. Rep. 33-34(2003-2004). VLIZ Collected Reprints: Marine and Coastal Research in Flanders, 33-34: pp. chapter 85 [Subsequent publication] |
| In: (2005). VLIZ Coll. Rep. 33-34(2003-2004). VLIZ Collected Reprints: Marine and Coastal Research in Flanders, 33-34. Flanders Marine Institute (VLIZ): Oostende, meer |
| In: VLIZ Collected Reprints: Marine and Coastal Research in Flanders. Vlaams Instituut voor de Zee: Oostende. ISSN 1376-3822, meer |
| Ook gepubliceerd als |
- Rahman, M.M.; Wille, M.; Cavalli, R.O.; Sorgeloos, P.; Clegg, J.S. (2004). Induced thermotolerance and stress resistance in larvae of the freshwater prawn, Macrobrachium rosenbergii (de Man, 1879) Aquaculture 230(1-4): 569-579. dx.doi.org/10.1016/j.aquaculture.2003.10.010, meer
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| Trefwoorden |
Biologische stress; Heat shock; Temperature tolerance; Zoet water |
| Author keywords |
Macrobrachium; heat shock; induced thermotolerance; stress |
| Abstract |
Optimal conditions for heat shock (HS) were used to demonstrate induced thermotolerance (ITT) in larvae of the prawn, Macrobrachium rosenbergii. Larvae from three different broodstock nutritional regimes exhibited comparable degrees of ITT, which remained high for about 4 days. Survival and growth of larvae given the standard HS treatment (37 °C for 30 min) were not statistically different from those of controls, so the cost of mounting a heat shock response was not sufficient to reduce those parameters. However, the percentage of heat-shocked larvae undergoing metamorphosis appeared to be slightly lower than that of controls. Previously heat-shocked larvae withstood hypersalinity exposures much better than control larvae, but showed the same survival level when both were challenged with ammonia toxicity. We suggest that the use of induced thermotolerance might provide a means to improve the performance of larvae during transport and/or initial inoculation into grow-out ponds. The present paper provides the basis upon which that suggestion might be examined. |
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