FEEDING BIOLOGY OF STICHOPUS-TREMULUS, A DEPOSIT-FEEDING HOLOTHURIAN

被引：81

作者：

HAUKSSON, E ^{[1
]}

机构：

[1] UNIV BERGEN,INST MARINE BIOL,N-5065 BLOMSTERDALEN,NORWAY

来源：

SARSIA | 1979年 / 64卷 / 03期

关键词：

D O I：

10.1080/00364827.1979.10411376

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Aquarium experiments in the laboratory and a cage experiment on the sea bottom have shown S. tremulus (Gunnerus) to be selective in its feeding habits, selecting faecal pellets from benthic animals and other sediment aggregates, which are richer in organic content than the general surface sediment. Assimilation efficiency of organic material is close to 30 % but lower (17 %) during the spawning period. The species utilizes as nutriment about 2 % of the sediment consumed. An average animal consumes, annually, about 0.6 kg of sediment (dry weight) and the S. tremulus population at about 250 m depth in Raunefjorden, western Norway, reworks at least about 20 g of sediment per m2 per year. © 1979 Taylor & Francis Group, LLC.

引用

页码：155 / 160

页数：6