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首页> 外文期刊>Archiv fur Hydrobiologie >Diet of great cormorants Phalacrocorax carbo sinensis wintering in Malause (South-West France)
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Diet of great cormorants Phalacrocorax carbo sinensis wintering in Malause (South-West France)

机译:Malause(法国西南)越冬的cor的饮食

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摘要

The diet of cormorants roosting at Malause on the Garonne River (South-West France) was studied by analyzing pellets collected during the winter 2001-2002. This roost held a mean of 550 cormorants between October 2001 and March 2002, making it one of the most important winter roosts in France. The diet contained 14 fish species, including 10 cyprinids. Cyprinids were the most abundant prey, representing 90 % of individual fish. Bream Abramis brama between 100 and 150 mm in length were the most abundant food items, while large bream (> 300 mm total length) were also consumed. The proportion of pellets containing bream increased from 26 % in October-November to 69 % in February-March. There was no significant change in the size of the bream over time. The next most abundant species was pikeperch Sander lucioperca present in 15.4 % of the pellets from December-January but only 2.6 % in February-March.
机译:通过分析2001-2002年冬季收集的颗粒,研究了在加龙河(法国西南部)的Malause栖息的cor的饮食。在2001年10月至2002年3月期间,该栖息地平均容纳550只cor,使其成为法国最重要的冬季栖息地之一。饮食中包含14种鱼类,其中包括10种鲤鱼。鲤鱼是最丰富的猎物,占单个鱼类的90%。长度在100到150毫米之间的A鲷是最丰富的食物,同时还食用大(总长> 300毫米)。含鲷鱼的颗粒比例从10月至11月的26%增加到2月至3月的69%。随着时间的推移,的大小没有明显变化。其次是最丰富的物种,从12月至1月,斑马鱼的Sand粉占15.4%,而在2月至3月,仅占2.6%。

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