DIET OF SPINY DOGFISH, SQUALUS-ACANTHIAS LINNAEUS, ON THE EAST-COAST, SOUTH-ISLAND, NEW-ZEALAND
DIET OF SPINY DOGFISH, SQUALUS-ACANTHIAS LINNAEUS, ON THE EAST-COAST, SOUTH-ISLAND, NEW-ZEALAND
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DOI：
10.1111/j.1095-8649.1991.tb04365.x
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发表时间：
1991-09-01
影响因子：
2
通讯作者：
HANCHET, S
中科院分区：
文献类型：
--
作者：
HANCHET, S
本文介绍了新西兰南岛东海岸7283条角鱼的胃内容物数据。根据出现的情况，主要的食物成分是60%的甲壳类和15%的鱼。主要的食物项目是蹲式龙虾幼体后阶段(30%)和真龙虾(20%)。商业鱼类品种在饮食中所占比例不到5%。角鱼的饮食因角鱼的大小和性别而不同。与北半球的研究相比，该研究地区的刺角鱼具有(1)在其饮食中甲壳类动物的比例较高，(2)相对较低的空腹比例，(3)相对较高的食人率。
Stomach content data from 7283 spiny dogfish,Squalus ucunthiusLinnaeus, from east coast South Island of New Zealand are presented. The major dietary components based on occurrence were 60% crustaceans and 15% fish. The principal food items were the post‐larval phase of the squat lobster,Munida greguriaFabricius (30%), and the euphausiid,Nyctiphanes australisSars (20%). Commercial fish species contributed to less than 5% of the diet. Diet of dogfish varied with dogfish size and sex. Compared to northern hemisphere studies, spiny dogfish in this study area had (1) a high proportion of crustaceans in their diet, (2) a relatively low percentage of empty stomachs, (3) a relatively high incidence of cannibalism.