用桁架网系统评价温度对尼罗罗非鱼幼鱼体型的影响

Q3 Agricultural and Biological Sciences
Mazaher Zamani-Faradonbe, Y. Keivany, Farhad Kermani, E. Ebrahimi
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引用次数: 0

摘要

在环境因素中,水温对鱼类生活的许多方面都有重要影响。采用桁架网系统研究了尼罗罗非鱼(Oreochromis niloticus)生命早期水温对其体型的影响。在22℃、28℃和34℃三种温度处理下饲养150尾新生鱼苗40 d。实验结束时,对标本左侧进行拍照。采用tpsDig2软件对13个地标点进行数字化处理,获得体型数据。提取的数据采用广义普鲁克斯氏分析进行验证,然后采用主成分分析(PCA)、典型变量分析(CVA)和聚类分析(CA)对组间体型差异进行分析。两组在体型上有显著差异。CVA和CA结果表明,水温是影响尼罗罗非鱼生长初期(幼虫期和幼鱼期)体型的重要因素之一。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Assessment of temperature effects on body shape in Nile tilapia, Oreochromis niloticus juveniles using the truss network system
Among the environmental factors, water temperature has a significant effect on many aspects of fish life. This study was carried out to examine effects of water temperature on body shape of Nile tilapia, Oreochromis niloticus during the early stages of life using truss network system. A total of 150 newly-born fry were reared in three temperature treatments (22, 28 and 34°C) for 40 days. At the end of experiment, the left side of the specimens was photographed. To achieve the body shape data, 13 landmark-points were digitized using tpsDig2 software. The extracted data were justified with generalized procrustes analysis, then the differences of body shape among groups were investigated using the principal component analysis (PCA), canonical variate analysis (CVA) and cluster analysis (CA). There were significant differences in body shape of the treatments. The results of CVA and CA indicated that one of the important factors in the aquatic habitats is water temperature that influences the body shape of the Nile tilapia during the first stages (larval and juvenile stages) of growth.
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来源期刊
caspian journal of environmental sciences
caspian journal of environmental sciences Environmental Science-Environmental Science (all)
CiteScore
2.30
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0.00%
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审稿时长
5 weeks
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