SEAFDEC, Southeast Asian Fisheries Development Center (2001) AQD Research publications reprints of papers listed here may be requested directly from AQD authors or from the AQD library. SEAFDEC Asian Aquaculture, Vol.23 (1-2). p. 9. ISSN 0115-4974
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The activity of the enzyme Na+, K+, ATPase and morphological changes of gill chloride cells in grouper, Epinephelus coioides larvae and juveniles were determined 6-48 h after abrupt transfer from ambient rearing conditions (30-32 ppt, 26.5-30o C) to different salinity (8, 18, 32, 40 ppt) and temperature (25, 30o C) combinations. Na+, K+, ATPase activity in day 20 larvae did not change at salinities 8-32 ppt. Activity decreased significantly after exposure to 40 ppt at 25- 30o C, which was accompanied by an increase in density and fractional area of chloride cells. Enzyme activity in 40 ppt did not reach a stable level and larvae failed to recover from an osmotic imbalance that produced a low survival at 25o C and death of all larvae at 30o C. Enzyme activity and chloride cell morphology in day 40 groupers did not change in 8-40 ppt at 25o C and 8-32 ppt at 30o C.
| Item Type: | Articles |
|---|---|
| Keywords: | Juveniles, Abalone, Spawning, Brood Stocks |
| Subjects: | Right to Resources |
| Depositing User: | Users 4 not found. |
| Date Deposited: | 03 Jun 2022 06:14 |
| Last Modified: | 03 Jun 2022 06:14 |
| URI: | http://icsfarchives.net/id/eprint/12453 |
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