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Effects of added shelter and stocking density on growth of sleepy cod Oxyeleotris lineolatus in ponds

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Herbert, B.W., Graham, P.A. and Foster, S.D. (2003) Effects of added shelter and stocking density on growth of sleepy cod Oxyeleotris lineolatus in ponds. Journal of the World Aquaculture Society, 34 (4). pp. 433-440.


Publisher URL: http://www.was.org/main/Default.asp


Sleepy cod Oxyeleotris lineolatus is a species of freshwater goby in demand in Australian markets by consumers of Asian origin. It is related to marble goby Oxyeleotris marmoratus, the most expensive freshwater food fish in Asia, which is cultured throughout southeast Asia in ponds and cages. The performance of sleepy cod in culture conditions was investigated to assess the viability of farming them in northern Australia. Sleepy cod fingerlings (62.8 +/- 0.8 mm total length and 2.56 +/- 0.095 g) were stocked into experimental ponds at 32,857 fish/ha, and grown out for 8 mo.

Shelter was provided in each of three replicate ponds and was absent in three control ponds. The provision of shelter in juvenile growout was found to be of no benefit, although fish in ponds provided with shelter weighed slightly more per unit length than fish in ponds without shelter. Cannibalism was not a problem in growout, and survival was close to 100%. After the shelter trial was completed, fish were graded into large and small classes (three replicates of each), and grown out without shelter at the same density for 158 d. Following that, fish were again graded, and the largest 30% retained from growout at a density of 8,857 fish/ha (large, 198 +/-6.44 g) or 10,000 fish/ha (small, 48.9 +/-1.27 g). These were grown out for 188 d.

Growth of selected stock at low densities was slower than earlier growth rates, although smaller fish gained weight more rapidly than larger fish. Growth rates were better than the only published data for marble goby. Further investigation into high density culture and different genotypes of sleepy cod needs to be undertaken to determine the viability of pond culture.

Item Type:Article
Additional Information:Reproduced with permission from The World Aquaculture Society, 143 J. M. Parker Coliseum, LSU Baton Rouge, LA 70806 USA Phone: +1-225-578-3137 Email: wasmas@aol.com
Keywords:Freshwater fish; Pond culture.
Subjects:Aquaculture and Fisheries > Aquaculture
Aquaculture and Fisheries > Aquaculture > Mariculture
Aquaculture and Fisheries > Aquaculture > Fish culture
Live Archive:09 Jul 2004
Last Modified:03 Sep 2021 16:47

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