THE DIET OF RED-BREASTED MERGANSERS (MERGUS-SERRATOR) DURING THE SMOLT RUN IN NE SCOTLAND - THE IMPORTANCE OF SALMON (SALMO-SALAR) SMOLTS AND PARR

被引：39

作者：

FELTHAM, MJ

机构：

[1] Institute of Terrestrial Ecology, Banchory, Kincardineshire, Hill of Brathens

来源：

JOURNAL OF ZOOLOGY | 1990年 / 222卷

关键词：

D O I：

10.1111/j.1469-7998.1990.tb05677.x

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Salmon (Salmo salar) formed the largest proportion by mass offish found in the stomachs of red‐breasted mergansers (Mergus serrator) shot during the smolt run in north‐east Scotland. Salmon parr represented approximately two‐thirds by mass of juvenile salmon eaten, whilst smolts were present in a smaller proportion than previously predicted. The median lengths of parr and smolts eaten were 70 and 115 mm, respectively; the latter being significantly smaller than the smolt population sampled during annual production estimates on the river. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：285 / 292

页数：8

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