Osmotic stress resistance as a quality diagnostic for penaeid postlarvae
Rees, J.F.; Curé, K.; Piyatiratitivorakul, S.; Menasveta, P.; Sorgeloos, P. (1994). Osmotic stress resistance as a quality diagnostic for penaeid postlarvae, in: Chou, L.M. et al. (Ed.) The 3rd Asian Fisheries Forum. pp. 1025-1028
In: Chou, L.M. et al. (Ed.) (1994). The 3rd Asian Fisheries Forum. Asian Fisheries Society: Manila. , more
Penaeus monodon postlarvae (PL-5) were reared for 10 days on Artemia nauplii enriched with various levels (2.65, 5.30, 12.60, 22.35 and 31.20 mg/g DW) of (n-3) highly unsaturated fatty acids (HUFA). On day 5 and 10, their resistance to osmotic shocks (transfer from 30 ppt to 0, 5, and 10 ppt diluted seawater) was analyzed. After 5 days, postlarvae fed Artemia containing 12.6 mg/g (n-3)HUFA or more had a significantly higher resistance (p<0.05) than controls. Five days later, no significant difference could be detected among the treatments. A positive correlation was found between the stress resistance of PL-10 and the survival recorded five days later in each tank (p<0.02). It is concluded that the resistance to osmotic stress is a valuable quality indicator for penaeid postlarvae. On the other hand, neither growth rate, nor their size can be considered adequate quality criteria.
All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy
