Vertical distribution of fish eggs and larvae in the Irish Sea and southern North Sea
Vertical distribution of fish eggs and larvae in the Irish Sea and southern North Sea
复制标题
爱尔兰海和北海南部鱼卵和幼鱼的垂直分布
DOI:
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发表时间:
1997
期刊:
影响因子:
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通讯作者:
Carl Smith
中科院分区:
文献类型:
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作者:
D. Conway;S. Coombs;Carl Smith
Fish eggs and larvae were analysed from 63 vertically stratified plankton hauls in the Irish Sea and southern North Sea. The dominant species were sprat (Sprattus sprattus), dragonet (Callionymus spp.), dab (Limanda limanda) and to a lesser extent rockling species, sandeel (Ammodytes spp.), whiting (Merlangius merlangus) and flounder (Platichthys flesus). There was little diVerence between species in the vertical distribution of either eggs or larvae. Most were concentrated in the upper 50 m of the water column, eggs in progressively increasing numbers towards the surface and larvae with a sub-surface peak at a depth of 10‐15 m. The vertical distribution of eggs extended deeper in the water column than larvae, possibly due to some combination of eggs being spawned deeper and their passive susceptibility to turbulent mixing. There were no significant diVerences between day and night distributions and under mixed or isothermal conditions. ? 1997 International Council for the Exploration of the Sea