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首页> 外文期刊>Turkish Journal of Fisheries & Aquatic Sciences >Stocking of Common Carp (Cyprinus carpio) into Some Newly-Estab Reservoirs of North-West Anatolia May Enhance the Spread of Non-Native Fish
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Stocking of Common Carp (Cyprinus carpio) into Some Newly-Estab Reservoirs of North-West Anatolia May Enhance the Spread of Non-Native Fish

机译：在西北安纳托利亚的一些新近建立的水库中放养鲤鱼（Cyprinus carpio）可能会增强非本地鱼类的传播

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Stocking of water bodies with non-native fish species for fisheries enhancement is a common practice worldwide. However, overall limited benefits in terms of revenues for local communities have so far been reported in some countries, whilst accidental introductions of several non-native fish species have occurred. To evaluate the benefits vs. costs associated with common carp Cyprinus carpio stocking practices, a three-year sampling study (2009–2011) was carried out across twelve adjacent artificial reservoirs of the Kocaeli Peninsula (north-west Anatolia, Turkey). Apart from common carp, 18 fish species in total were recorded, of which 12 native and six non-native, the latter comprising more than half of the total catch and dominated by gibel carp Carassius gibelio. Even though the abundance of common carp, natives and non-natives increased over the study period, common carp was always comparatively less abundant relative to most of the other species. Overall, the present findings indicate that stocking of common carp into the studied reservoirs has not fully met with the proposed objectives, likely a result of less-than-optimal age-0 fish release strategies and limited availability of spawning grounds. On the other hand, invasion especially by gibel carp is thought to be under way and this may ultimately impact on the abundance of the native fish fauna.
机译：在世界范围内普遍将非本地鱼类放到水体中以增强渔业。但是，到目前为止，在一些国家中，据报当地社区在收益方面的总体利益有限，而偶然引进了几种非本地鱼类。为了评估鲤鱼鲤鱼放养方式的收益与成本，我们对科卡埃利半岛的十二个相邻人工水库（土耳其西北安纳托利亚）进行了为期三年的抽样研究（2009-2011年）。除鲤鱼外，总共记录了18种鱼类，其中12种为本地鱼类，6种为非本地鱼类，后者占总捕获量的一半以上，由吉贝尔bel鱼Carassius gibelio占主导。尽管在研究期间，鲤鱼，本地人和非本地人的丰度增加，但相对于大多数其他物种而言，鲤鱼的丰度始终相对较低。总的来说，目前的发现表明，将鲤鱼放养到所研究的水库中还不能完全满足拟议的目标，这可能是由于-0岁以下鱼类的放鱼策略不理想以及产卵场有限所致。另一方面，据认为特别是长鳍金枪鱼的入侵正在进行中，这可能最终影响当地鱼类的数量。

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