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Salinity Tolerance and Growth Response of Juvenile Oreochromis mossambicus at Different Salinity Levels

作者:KhalidJamil; MuhammadShoaib; FaisalAme...盐分生长海洋环境河口幼鱼

摘要:Juveniles of Oreochromis mossambicus with initial wet weights of 0.0382±0.0859 g and initial total lengths of 0.735±1.425 cm were tested for their salinity tolerance. The juveniles were subjected to five salinity levels for a period of seventy-five days. These salinity levels correspond to the salinities found along the creek and in estuarine regions. Each set of experiments was conducted at a fifteen day intervals. The weight, length and survival rate were calculated. No mortality was observed at salinity levels 0, 5, 10 and 15, while the juveniles faced slight mortality at 20 in the same environmental conditions, including the diet. There was no significant difference in specific growth rate at all salinity levels. The juveniles of O.mossambicus could survive up to 20 salinity. These results suggest that this species can grow and be exploited commercially in brackish waters, rivers and estuarine regions.

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中国海洋大学学报·自然科学版

《中国海洋大学学报·自然科学版》(CN:37-1414/P)是一本有较高学术价值的大型月刊,自创刊以来,选题新奇而不失报道广度,服务大众而不失理论高度。颇受业界和广大读者的关注和好评。 《中国海洋大学学报·自然科学版》主要刊登理、工、农(水产)、医(药)等涉海相关领域中具有原创性的科技论文。坚持为理论研究、高技术开发、成果转化等专家学者、科技工作者服务,以理论研究和知识创新为主导,兼顾应用于开发等国内、国际的最新研究成果。

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