Trophic niche differences between two congeneric goby species: evidence for ontogenetic diet shift and habitat use

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 热带海洋环境国家重点实验室(LTO)

	Trophic niche differences between two congeneric goby species: evidence for ontogenetic diet shift and habitat use
	Guo, ZQ ; Liu, JS ; Lek, S ; Li, ZJ ; Zhu, FY ; Tang, JF ; Cucherousset, J
刊名	AQUATIC BIOLOGY
	2014
卷号	20 期号:1 页码:23-33
关键词	Species co-occurrence Niche differentiation Ontogenetic niche shift Stable isotope analyses Rhinogobius Gut content analysis
ISSN号	1864-7790
通讯作者	jsliu@ihb.ac.cn
中文摘要	Food partitioning is one of the primary mechanisms facilitating the stable co-occurrence of competing species, but very few studies have investigated how food resource use of competing and closely related species varies with life-history stages and habitats. In Lake Erhai (China), the trophic niche of 2 congeneric and co-occurring invasive goby species (Rhinogobius cliffordpopei and R. giurinus) was examined to test the existence of an ontogenetic diet shift and to determine potential differences in trophic niche between species within a habitat and between habitats (i.e. littoral and profundal) within species. Results obtained from gut content and stable isotope analyses revealed a strong trophic niche shift during ontogeny, whereby juveniles mainly consumed macrozooplankton while sub-adults and adults increasingly consumed aquatic insects and Tubificidae. The trophic niche of juveniles was similar between species in each of the 2 habitats but significantly different for sub-adults and adults, notably in littoral habitat. Moreover, the trophic niche was similar between habitats for juveniles of each species, whereas it differed significantly between habitats for sub-adults and adults. This study demonstrates the importance of ontogeny and shows that habitat use can significantly affect food resource use and trophic relationships between 2 co-occurring fish species.
收录类别	SCI
资助信息	National Natural Science Foundation of China [31172387]; Major Science and Technology Program for Water Pollution Control and Treatment of China [2012ZX07105-004]; National S&T Supporting Program [2012BAD25B08]; European Union [PERG08-GA-2010-276969]
原文出处	INTER-RESEARCH
WOS记录号	WOS:000330614600003
公开日期	2014-12-11
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/10590]
专题	南海海洋研究所_热带海洋环境国家重点实验室(LTO)
推荐引用方式 GB/T 7714	Guo, ZQ,Liu, JS,Lek, S,et al. Trophic niche differences between two congeneric goby species: evidence for ontogenetic diet shift and habitat use[J]. AQUATIC BIOLOGY,2014,20(1):23-33.
APA	Guo, ZQ.,Liu, JS.,Lek, S.,Li, ZJ.,Zhu, FY.,...&Cucherousset, J.(2014).Trophic niche differences between two congeneric goby species: evidence for ontogenetic diet shift and habitat use.AQUATIC BIOLOGY,20(1),23-33.
MLA	Guo, ZQ,et al."Trophic niche differences between two congeneric goby species: evidence for ontogenetic diet shift and habitat use".AQUATIC BIOLOGY 20.1(2014):23-33.