| Aquaculture Research |
| Volume 43, Number 10 (September 2012) |
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Effect of stocking density and photoperiod on growth and survival in cultured early juvenile pot-bellied seahorses Hippocampus abdominalis Lesson, 1827 |
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Authors: |
Leonardo Martinez-Cardenas, Gary John Purser |
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Author Affiliations: |
| no affiliations available |
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Source: |
Aquaculture Research, Volume 43, Number 10 (September 2012) |
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Page Numbers: |
1536 – 1549 |
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Available Full Text: |
| Full Text: |
Subscription Required to view full text |
| Format: |
PDF |
| Size: |
unknown |
| Location: |
Publisher’s Site |
| Authentication: |
EBSCOhost EJS |
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Abstract: |
The effect of stocking density and photoperiod on Hippocampus abdominaliswas examined in this study. Stocking densities of 45, 30, 15 and 5 seahorses 3 L-1were tested on newborns. Growth and survival were independent of stocking density. A second stocking-density experiment aimed to remove the effect of an early mortality experienced in experiment 1 using older juveniles at 25, 15 and 5 seahorses 3 L-1. There were no differences in the parameters measured. Also, the effect of photoperiod was investigated on seahorses cultured under 24:00, 16:08 and 08:16 (L:D) photoperiods. A single Artemia meal was delivered at 10:00 hours. Survival and body growth in 16:08 and 08:16 hours were higher than in 24:00 hours. In a second experiment, seahorses were cultured in the photoperiods and conditions described for experiment 1, except they were fed twice the amount in two meals delivered at 10:00 and 16:30 hours. The seahorses in 16:08 hours showed better growth than the other treatments, but there were no differences in survival. These results suggest that early juvenile H. abdominaliscan be cultured at higher stocking densities than previously reported, without compromising growth and survival, and when feeding was not limiting, grew better in an extended photoperiod (16:08) but not in 24:00 hours. |
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Citation: |
Leonardo Martinez-Cardenas, Gary John Purser . Effect of stocking density and photoperiod on growth and survival in cultured early juvenile pot-bellied seahorses Hippocampus abdominalis Lesson, 1827. Aquaculture Research, Volume 43, Number 10 (September 2012), pp. 1536-1549, ; |
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URL: |
http://ejournals.ebsco.com/direct.asp?ArticleID=4B24B765D5200D9066DA |
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