Breeding and larval rearing of threatened, endemic fish stonesucker, Garra ceylonensis (Bleeker)
Autor: | T. V. Sundarabarathy, C.M.B. Dematawewa, U. Edirisinghe |
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Rok vydání: | 2005 |
Předmět: | |
Zdroj: | Aquaculture Research. 36:196-201 |
ISSN: | 1365-2109 1355-557X |
DOI: | 10.1111/j.1365-2109.2004.01212.x |
Popis: | This study was aimed to develop captive breeding and nurture the young of stonesucker (Garra ceylonensis, Bleeker), a small threatened freshwater fish species endemic to Sri Lanka. Breeding of stonesucker was possible under indoor conditions without hormonal stimulation. They were single spawners having a fecundity of 562±176 eggs per fish (total length of 7.9±0.6 cm) with an egg size of 770–1877 μm. Duration of development stages were, egg to hatchling 36–48 h, hatchling to postlarva stage 3–4 days, postlarva to juvenile stage 5–64 days and adult stage in 300–365 days at 26–28°C. Juveniles exhibited bottom dwelling habit in 70–75 days. Postlarva fed with formulated feed exhibited the highest growth (P |
Databáze: | OpenAIRE |
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