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冬季大别山不同生境的绿太阳鱼肌肉营养组成对比
引用本文:彭芳珍,李玉呈,张晓可,王广军,李志斐,谢骏,万安.冬季大别山不同生境的绿太阳鱼肌肉营养组成对比[J].淡水渔业,2018(1):55-61.
作者姓名:彭芳珍  李玉呈  张晓可  王广军  李志斐  谢骏  万安
作者单位:1. 中国水产科学研究院珠江水产研究所,农业部热带亚热带水产资源利用与养殖重点实验室,广州510380;2. 安庆师范大学,水生生物保护与水生态修复安徽省高校工程技术研究中心,安徽安庆,246011
基金项目:安徽省高校自然科学研究重点项目,农业部热带亚热带水产资源利用与养殖重点实验室开放基金,安徽省高等教育振兴计划重大教学改革研究项目
摘    要:为了解冬季绿太阳鱼(Lepomis cyanellus)肌肉营养成分的空间差异,分析并比较了2016年12月采集的大别山区三个样地的绿太阳鱼肌肉营养成分。利用相似性百分比(SIMPER)分析、非参数多变量排序(NMS)和聚类分析(Cluster analysis),结果显示:大别山区栖息环境(水库、溪流)对绿太阳鱼肌肉营养成分影响较大;随后t-test的结果显示同一样地溪流环境中的绿太阳鱼丰满度K,肌肉氨基酸组成中的脯氨酸Pro、甘氨酸Gly、蛋氨酸Met、组氨酸His、精氨酸Arg、总脂肪,以及脂肪酸酸组成中棕榈酸(C_(16∶0))、硬脂酸(C_(18∶0))、油酸(C_(18∶1))均高于水库中绿太阳鱼的含量;同时水库环境中绿太阳鱼肌肉中的花生一烯酸(C_(20∶1))、二十二碳二烯酸(C_(22∶2))、二十二碳六烯酸(C_(22∶6))、十七碳一烯酸(C_(22∶6))、花生二烯酸(C_(20∶2))、花生三烯酸(C_(20∶3))、花生四烯酸(C_(20∶4))、二十二碳四烯酸(C_(22∶4))、二十二碳五烯酸(C_(22∶5))等不饱和脂肪酸高于下游溪流绿太阳鱼肌肉中的水平。

关 键 词:绿太阳鱼(Lepomis  cyanellus)  越冬  营养成分

Comparative analysis of the nutritional composition in the muscles of Lepomis cyanellus in different habitats of the Dabie mountain in winter
PENG Fang-zhen,LI Yu-cheng,ZHANG Xiao-ke,WANG Guang-jun,LI Zhi-fei,XIE Jun,WAN An.Comparative analysis of the nutritional composition in the muscles of Lepomis cyanellus in different habitats of the Dabie mountain in winter[J].Freshwater Fisheries,2018(1):55-61.
Authors:PENG Fang-zhen  LI Yu-cheng  ZHANG Xiao-ke  WANG Guang-jun  LI Zhi-fei  XIE Jun  WAN An
Abstract:Analysis and comparison were conducted on nutritional composition in the muscles of Lepomis cyanellus to as-certain the spatial differences of it.The researchers collected L.cyanellus samples from three different sites of the Dabie Mountain in December 2016 to detect the nutritional composition in the muscles.The results showed that local habitats(res-ervoirs,streams) had greater effects on nutritional composition of L.cyanellus muscle, which were obtained by different an-alytical methods including Similarity Percentage(SIMPER), Non-parametric Multivariate Sorting(NMS)and Cluster Analy-sis.The results of t-test certified that the condition factor K, the amino acids including proline(Pro), glycine(Gly), me-thionine(Met), histidine(His), arginine(Arg)and the total fat, the fatty acids including palmitic acid(C16:0), stearic acid(C18:0) and Oleic acid(C18:1), in the muscle of L.cyanellus in streams were higher than those in reservoirs of the same sampling site.Meanwhile, the unsaturated fatty acids including eicosenoic acid(C20:1), docosadienoic acid(C22:2), docosahexaenoic acid(C22:6), heptadecenoic acid(C17:1), eicosadienoic acid(C20:2), eicosatrienoic acid(C20:3), arachidonic acid(C20:4), docosatetraenoic acid(C22:4) and docosapentenoic acid(C22:5) in the muscle of L.cyanellus in reservoirs were higher than those in downstream streams.In view of this, it could be speculated that streams may be a more suitable habitat for L.cyanellus to store their energy and live through the winter.Furthermore, L.cyanellus might adapt to the low-temperature environment of the Dabie Mountain through their fatty acid metabolism in winter.
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