Dietary-morphological relationships of fishes in Liangzi Lake, China

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	Dietary-morphological relationships of fishes in Liangzi Lake, China
	Xie, S; Cui, Y; Li, Z
刊名	JOURNAL OF FISH BIOLOGY
	2001
卷号	58 期号:6 页码:1714-1729
关键词	Feeding Relationships Ecomorphology Assemblages Patterns Ecology Community Overlap Regions
ISSN号	0022-1112
英文摘要	Species in Liangzi Lake were clustered into four trophic groups: Hemiramphus kurumeus and Hemiculter bleekeri bleekeri fed predominantly on terrestrial insects; Carassius auratus auratus and Abbottina rivularis on non-animal food; Hypseleotris swinhonis, Ctenogobius giurinus, Pseudorasbora parva and Toxabramis swinhonis on cladocerans or copepods; Culterichthys erythropterus on decapod shrimps. Gut length, mouth width, mouth height, gill raker length and gill raker spacing, varied widely among species. With the exception of three species pairs (H. swinhonis, C. glurinus; C. erythropterus, H. kurumeus; T. swinhonis, H. bleekeri bleekeri), principal components analysis of morphological variables revealed over-dispersion of species. Canonical correspondence analysis of dietary and morphological data revealed five significant dietary-morphological correlations. The first three roots explained > 85% of the total variance. The first root reflected mainly the relationship of gut length to non-animal feud, with an increase in gut length associated with an increase in non-animal food. The second root was influenced strongly by the relationship of the gill raker spacing to consumption of copepods, with an increase in gill raker spacing associated positively with copepods in the diet. The third root was influenced by the relationship of mouth gape to consumption of fish and decapod shrimps, with an increase in mouth gape associated with more fish and decapod shrimps in the diet. These significant dietary-morphological relationships supported the eco-morphological hypotheses that fish morphology influence food use, and morphological variation is important in determining ecological segregation of co-existing fish species. (C) 2001 The Fisheries Society of the British Isles.
学科主题	Fisheries ; Marine & Freshwater Biology
URL标识	查看原文
公开日期	2010-12-22
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/3329]
专题	海洋研究所_实验海洋生物学重点实验室
推荐引用方式 GB/T 7714	Xie, S,Cui, Y,Li, Z. Dietary-morphological relationships of fishes in Liangzi Lake, China[J]. JOURNAL OF FISH BIOLOGY,2001,58(6):1714-1729.
APA	Xie, S,Cui, Y,&Li, Z.(2001).Dietary-morphological relationships of fishes in Liangzi Lake, China.JOURNAL OF FISH BIOLOGY,58(6),1714-1729.
MLA	Xie, S,et al."Dietary-morphological relationships of fishes in Liangzi Lake, China".JOURNAL OF FISH BIOLOGY 58.6(2001):1714-1729.