Citation
Ostrowski B.F., . (1997) Aspects of the reproductive biology and aquaculture potential of mangrove red snapper Lutjanus argentimaculatus. [Proceedings Paper]
Abstract
Mangrove red snapper broodstock mean weight 4.4 kg were stocked in flow-through seawater tanks and spawned spontaneously after 11 days. Spawning continued during a period of six weeks from late August to mid-October producing 207 000 - 1 870 000 eggs per spawning event. Fertilisation rate of the eggs was in the range 64-99 with a mean hatching rate of 81. Survival to first feeding was in the range 18-99 mean 75. Subsequent larval mortality was high with 58 maximum survival to day 10 and less than 1 by day 20. Mouth gape of developing larvae was 99 mu m at first opening whilst the mean lorica width of cultured rotifers was 138 mu m. Smaller size initial feeds such as oyster eggs 50 mu m or commercial micro-particulate feeds 25-60 mu m are recommended for improved survival of first feeding larvae. Data collected in 1991 and 1992 when spawning was observed from April - May and August - October respectively indicate that mangrove red snapper on the west coast of Sabah have two spawning peaks during the year.
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Abstract
Mangrove red snapper broodstock mean weight 4.4 kg were stocked in flow-through seawater tanks and spawned spontaneously after 11 days. Spawning continued during a period of six weeks from late August to mid-October producing 207 000 - 1 870 000 eggs per spawning event. Fertilisation rate of the eggs was in the range 64-99 with a mean hatching rate of 81. Survival to first feeding was in the range 18-99 mean 75. Subsequent larval mortality was high with 58 maximum survival to day 10 and less than 1 by day 20. Mouth gape of developing larvae was 99 mu m at first opening whilst the mean lorica width of cultured rotifers was 138 mu m. Smaller size initial feeds such as oyster eggs 50 mu m or commercial micro-particulate feeds 25-60 mu m are recommended for improved survival of first feeding larvae. Data collected in 1991 and 1992 when spawning was observed from April - May and August - October respectively indicate that mangrove red snapper on the west coast of Sabah have two spawning peaks during the year.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| AGROVOC Term: | LUTJANUS |
| AGROVOC Term: | SNAPPERS |
| AGROVOC Term: | FERTILIZATION |
| AGROVOC Term: | EGG HATCHABILITY |
| AGROVOC Term: | FEEDING |
| AGROVOC Term: | OVIPOSITION |
| AGROVOC Term: | AQUACULTURE |
| AGROVOC Term: | SABAH |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Norfaezah Khomsan |
| Last Modified: | 24 Apr 2025 05:27 |
| URI: | http://webagris.upm.edu.my/id/eprint/16178 |
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