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首页> 外文期刊>Turkish Journal of Fisheries & Aquatic Sciences >Ichthyofauna composition and population parameters of fish species from the special nature reserve 'Koviljsko-Petrovaradinski Rit' (Vojvodina, Serbia).
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Ichthyofauna composition and population parameters of fish species from the special nature reserve 'Koviljsko-Petrovaradinski Rit' (Vojvodina, Serbia).

机译：特殊自然保护区“ Koviljsko-Petrovaradinski Rit”（塞尔维亚伏伊伏丁那）鱼类的鱼腥藻成分和种群参数。

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摘要

Qualitative and quantitative ichthyofauna composition, morphometric characteristics, sex ratio, age and growth for fish species from Koviljsko-Petrovaradinski Rit were examined. A total of 1715 individuals which were classified into 18 species, from 7 families, were caught between August 2006 and October 2008. The greatest proportional contribution in total number of fish had Rutilus rutilus, while the greatest mass contribution had Carassius gibelio. Diversity and richness indices showed the highest values in the Dunavac locality. Female:male sex ratio varied from 1:0.33 in Sander lucioperca to 1:3.67 in Leuciscus idus and could not be observed in Aspius aspius, Neogobius fluviatilis and Cobitis taenia due to presence of only juvenile individuals. According to the scale readings, age distribution varied from I to VII year. The von Bertalanffy equation and growth performance index were determined by FiSAT II software in Esox lucius, Perca fluviatilis, Lepomis gibbosus, R. rutilus, L. idus, C. gibelio and Alburnus alburnus. Finally, distribution and population parameters of an invasive C. gibelio were discussed. Slightly poorer ichthyofauna diversity, low presence of economically significant species and reduced presence of individuals from higher age categories can point to irrational fishing, degradation of habitat, destruction of spawning areas and pronounced anthropogenic influence.
机译：研究了Koviljsko-Petrovaradinski Rit鱼类的定性和定量鱼鳞鱼组成，形态特征，性别比，年龄和生长。在2006年8月至2008年10月之间，共捕获了来自7个科的1815种动物，共1715个。在鱼类总数中比例最大的是had鱼，而最大的鱼类是Car鱼。多样性和丰富度指数显示了Dunavac地区的最高值。男女比例从Sander lucioperca的1：0.33到内隐白蜡虫的1：3.67不等，在Aspius aspius，Neogobius fluviatilis和Tabia taenia中均未观察到，这是因为仅存在幼年个体。根据量表的读数，年龄分布从一年到七年不等。 von Bertalanffy方程和生长性能指标由FiSAT II软件确定，在Esox lucius，Perca fluviatilis，Lepomis gibbosus，R。rutilus，L。idus，C。gibelio和Alburnus alburnus中进行。最后，讨论了侵入性长臂梭菌的分布和种群参数。鱼鳞鱼类的多样性稍差，具有经济意义的物种的稀少和年龄较大的个体的数量减少，可能表明捕鱼不合理，栖息地退化，产卵区遭到破坏以及明显的人为影响。

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