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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

Citation

Martinez, L and Purser, GJ, Effect of stocking density and photoperiod on growth and survival in cultured early juvenile pot-bellied seahorses Hippocampus abdominalis Lesson, 1827, Aquaculture Research, 2011, (September) EJ ISSN 1355-557X (2011) [Refereed Article]


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The definitive published version is available online at: http://www3.interscience.wiley.com/

DOI: doi:10.1111/j.1365-2109.2011.02958.x

Abstract

The effect of stocking density and photoperiod on Hippocampus abdominalis was examined in this study. Stocking densities of 45, 30, 15 and 5 seahorses 3 L 1 were 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. abdominalis can 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.

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Aquaculture
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - Aquaculture
Objective Field:Aquaculture Crustaceans (excl. Rock Lobster and Prawns)
Author:Martinez, L (Mr Leonardo Martinez)
Author:Purser, GJ (Associate Professor John Purser)
ID Code:75388
Year Published:2011
Web of Science® Times Cited:2
Deposited By:NC Marine Conservation and Resource Sustainability
Deposited On:2012-01-30
Last Modified:2012-04-30
Downloads:1 View Download Statistics

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