COMPARATIVE FORE-GUT MORPHOLOGY OF ANTARCTIC AMPHIPODA (CRUSTACEA) ADAPTED TO DIFFERENT FOOD SOURCES

被引：43

作者：

COLEMAN, CO

机构：

[1] Universität Oldenburg, Oldenburg, D-2900, Fachbereich 7, Arbeitsgruppe Zoomorphologie

来源：

HYDROBIOLOGIA | 1991年 / 223卷

关键词：

ANTARCTIC; CRUSTACEA; AMPHIPODA; FORE-GUT MORPHOLOGY; FOOD PREFERENCE;

D O I：

10.1007/BF00047623

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

The fore-gut morphology of ten species of Antarctic amphipods utilizing different food sources was investigated. There are considerable differences in shape, relative lengths of the stomachs and their structures. Relative lengths of the stomachs range from more than 30% to 2% compared to the total body lengths. The relative length of the anterior rough filter corresponds in general with the relative stomach length. Stomachs with long rough filter share in general a small fine filter area. Interspecific differences of stomach lateralia might be used for phylogenetic analysis, but are apparently not related to different food sources. Different speculative selective pressures that might have had influence on the evolution of fore-guts are discussed.

引用

页码：1 / 9

页数：9

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