Effects of stocking density on growth and survival of young Gulf killifish in recirculating aquaculture systems

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dc.contributor.author Ofori-Mensah, S.
dc.contributor.author Nunoo, F.K.E.
dc.contributor.author Atsu, D.K.
dc.date.accessioned 2019-06-21T09:37:23Z
dc.date.available 2019-06-21T09:37:23Z
dc.date.issued 2018-05
dc.identifier.citation Samuel Ofori-Mensah, Francis K. E. Nunoo & Dzidzornu K. Atsu (2018) Effects of stocking density on growth and survival of young Gulf killifish in recirculating aquaculture systems, Journal of Applied Aquaculture, 30:4, 297-311, DOI: 10.1080/10454438.2018.1468295 en_US
dc.identifier.other https://doi.org/10.1080/10454438.2018.1468295
dc.identifier.uri http://ugspace.ug.edu.gh/handle/123456789/31017
dc.description.abstract Gulf killifish, Fundulus grandis, is a hardy marine baitfish with established rearing techniques in ponds and static pools, but there is little information about the use of recirculating aquaculture systems (RAS) for growing killifish.The current trial investigated the effects of stocking density on growth and survival of young killifish in RAS. Young fish (28-day posthatch) of 51.6 ± 0.9 mg (mean ± SE) were stocked at 2, 5, 8, and 11 fish/L in 31 L tanks in RAS with triplicate groups for 16 weeks. Cannibalism was a major problem in the study, which increased with increasing initial stocking density, affecting survival negatively. Survival decreased (P < 0.03) with increasing initial stocking density and culture period. At the end of the trial, the 2, 5, 8 and 11 fish/L initial stocking density reduced to 1.66, 1.42, 0.86, and 0.74 fish/L respectively. A significant linear relationship existed between the initial stocking density and weight (y = 0.077x + 2.3; R2 = 0.8; P = 0.003), whereas an inverse relationship occurred between initial stocking density and survival parameters (y = −9.43x + 97.4; R2 = 0.89; P < 0.001). From the trial, the optimum density for culturing young of Gulf killifish in RAS appears to be around two fish/L. en_US
dc.language.iso en en_US
dc.publisher Journal of Applied Aquaculture en_US
dc.subject Baitfish en_US
dc.subject Cannibalism en_US
dc.subject Optimum density en_US
dc.subject Pond studies en_US
dc.subject Recirculating technology en_US
dc.subject Techniques en_US
dc.title Effects of stocking density on growth and survival of young Gulf killifish in recirculating aquaculture systems en_US
dc.type Article en_US


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