期刊
RUSSIAN JOURNAL OF MARINE BIOLOGY
卷 35, 期 4, 页码 288-295出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1063074009040038
关键词
Strongylocentrotus droebachiensis; Paralithodes camtschaticus; reconstruction; foraging
A new method for the estimation of foraging on the sea urchin Strongylocentrotus droebachiensis (O.F. Muller, 1776) by the red king crab Paralithodes camtschaticus (Tilesius, 1815) is proposed. This method uses the reconstruction of the size, number, and biomass of eaten sea urchins, based on fragments of their teeth and tests from the crab's digestive tract. Data obtained by this method suggest that in shallow waters of the Barents Sea (Kola Bay, Dal'nezelenetskaya Bay) adult, most often, female and immature crabs predominantly consume juvenile sea urchins. The weight of sea urchins daily eaten by one adult red king crab was 0.2-8.0% of its body weight for sexually mature crabs and 3.0-28.0% for immature specimens. Damage inflicted to the S. droebachiensis population as a result of the crab feeding activity was estimated to be at least 10% of the sea urchin biomass in Dal'nezelenetskaya Inlet and at least 30% in Kola Bay.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据