A Bias Estimator of the Environmental Resource Base in Diet Preference Studies with Fish
作者:
JosephW. Rachlin,
Antonios Pappantoniou,
BarbaraE. Warkentine,
期刊:
Journal of Freshwater Ecology
(Taylor Available online 1987)
卷期:
Volume 4,
issue 1
页码: 23-31
ISSN:0270-5060
年代: 1987
DOI:10.1080/02705060.1987.9665157
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
An assessment of the resource base for determining dietary preference is obtained by using the pooled stomach content data derived from all fish collected at a study site. The assessment provides a different bias than is obtained by using standard independent environmental sampling methods, in that all food taken by the fish community is included in the preference estimates. An important characteristic of a preference index is its conservativeness.
点击下载:
PDF (431KB)
返 回