fish–macrofauna interactions in a kelp (laminaria hyperborea) forest
fish–macrofauna interactions in a kelp (laminaria hyperborea) forest
复制标题
海带森林中鱼类与大型动物的相互作用
DOI：
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发表时间：
2005
影响因子：
1.2
通讯作者：
S. Fredriksen
中科院分区：
文献类型：
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作者：
K. M. Norderhaug;H. Christie;J. Fosså;S. Fredriksen
对海带（海带）森林中鱼类和大型动物之间的捕食者-猎物相互作用进行了研究。在两个地点的整个昼夜循环中，都用刺网和鱼夹捕获了鱼。对他们的胃内容物进行了分析。除绿鳕鱼外，最丰富的鱼类在夜间捕获的数量比白天多。经检查，在整个昼夜周期中进食的鱼类和与海带相关的动物群被发现是重要的猎物。 pollachius virens 在整个昼夜周期中捕获的数量相同，主要是中上层猎物，白天的数量多于夜间。小型拉布拉鱼是专家，主要以两种数量占优势的海带相关腹足动物 rissoa parva 和 lacuna vincta 为食。体型较大的拉布拉斯·伯吉尔塔（labrus bergylta）、鳕鱼（gadus morhua）和天蝎座鲫鱼（myoxocephalus scorpius）都是多面手，以大量与海带相关的无脊椎动物为食。一些鱼类在海带森林中进食时表现出对特定垂直高度的偏好。最易移动和/或最大的无脊椎动物遭到最严重的捕食。
predator–prey interactions between fish and macrofauna in kelp (laminaria hyperboea) forest were examined. fish were caught in gill-nets and fish traps at two sites and throughout the diurnal cycle. their stomach contents were analysed. the most abundant fish species, except pollachius virens, were caught in larger numbers at night than during daytime. the examined fish fed throughout the diurnal cycle and kelp-associated fauna were found to be important prey. pollachius virens was caught in the same numbers throughout the diurnal cycle and contained mainly pelagic prey, in larger numbers during the day than at night. small labrids were specialists, feeding mainly on the two numerically dominant kelp-associated gastropods rissoa parva and lacuna vincta. the larger labrus bergylta, gadus morhua and myoxocephalus scorpius were generalists, feeding on a large range of kelp-associated invertebrates. some fish species showed preference for particular vertical levels when feeding in the kelp forest. the most mobile and/or the largest invertebrates were most heavily preyed upon.