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首页> 外文期刊>Turkish Journal of Fisheries & Aquatic Sciences >First report on the abnormality among body component ratios in the caught caspian sea mahisefid (Rutilus frissi kutum, Kamensky, 1901).
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First report on the abnormality among body component ratios in the caught caspian sea mahisefid (Rutilus frissi kutum, Kamensky, 1901).

机译：关于捕获的里海mahisefid（Rutilus frissi kutum，Kamensky，1901年）中身体成分比例异常的首次报道。

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摘要

To study anomaly among body components in the Mahisefid population situated in one of the spawning rivers, the abnormal fishes were sampled (n=10). Twenty six morphological properties were measured to be statistically (P<0.05) compared with normally caught fishes. The mentioned characters were standardized based on the total length. Eight ratios including standard length (SL), snout length (SNL), dorsal fin height (DFH), distance between pelvic fin to ventral fin (PV), distance between snout to anterior part of dorsal fin (PRB), distance between posterior part of dorsal fin to anterior part of caudal fin (POB), upper part of caudal fin length (UCFL) and mid part of caudal fin Length (CCFL) of abnormal fishes differed significantly (P<0.05) from those of healthy fishes. The morphological characters were classified at three components. Discriminant analysis showed the ratios of fork length and standard length were the significantly (P<0.05) variables to screen samples. Draining diverse pollutants and heavy metals to the receiving rivers, inbreeding and technical errors during propagation were the most important reasons threating the life cycle of Mahisefid populations.
机译：为了研究位于其中一条产卵河中的Mahisefid种群的身体成分之间的异常，对异常鱼进行了采样（n = 10）。与正常捕捞的鱼类相比，有26种形态学特征被统计为具有统计学意义（P <0.05）。提到的字符是根据总长度标准化的。八个比率，包括标准长度（SL），鼻子长度（SNL），背鳍高度（DFH），骨盆鳍与腹鳍之间的距离（PV），鼻子与背鳍前部之间的距离（PRB），后部之间的距离异常鱼的背鳍至尾鳍前部（POB），尾鳍长（UCFL）的上部和尾鳍长（CCFL）的中部与健康鱼相比有显着差异（P <0.05）。形态特征分为三个部分。判别分析表明，货叉长度与标准长度之比是筛选样品的显着变量（P <0.05）。将各种污染物和重金属排放到接收河流中，繁殖过程中的近亲繁殖和技术错误是威胁马希菲德种群生命周期的最重要原因。

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