首页|期刊导航|中国海洋湖沼学报（英文版）|Trophic ecology of small yellow croaker (Larimichthys polyactis Bleeker): stable carbon and nitrogen isotope evidence
中国海洋湖沼学报（英文版）2011，Vol.29Issue(5)：1033-1040,8.DOI:10.1007/s00343-011-0188-2
Trophic ecology of small yellow croaker (Larimichthys polyactis Bleeker): stable carbon and nitrogen isotope evidence
Trophic ecology of small yellow croaker (Larimichthys polyactis Bleeker): stable carbon and nitrogen isotope evidence
摘要
Abstract
The trophic ecology of the small yellow croaker (Larimichthys polyactis) was studied using stable isotope analyses.Samples were collected from July to September 2009 and 34 individuals from eight sites were examined for stable carbon and nitrogen isotopes.Stable carbon isotope ratios (δ13C)ranged from -20.67 to -15.43,while stable nitrogen isotope ratios (δ15N) ranged 9.18-12.23.The relationship between δ13C and δ15N suggested high resource partitioning in the sampling area.Significant differences in stable isotope values among the eight sampling sites may be linked to environmental diversities involving various physical processes (such as ocean current,wind and tide) and different carbon sources.Furthermore,the stable isotope ratios may also explain the ontogenetic variability in diet and feeding,because δ13C and δ15N varied significantly with increasing body size.The findings are consistent with other studies on diet analyses in small yellow croaker.It was also demonstrated that stable isotope analysis could be used to estimate the trophic characters of small yellow croaker in feeding patterns and migrating habits.关键词
small yellow croaker/stable isotope analysis/trophic strategy/East China SeaKey words
small yellow croaker/stable isotope analysis/trophic strategy/East China Sea引用本文复制引用
JI Weiwei,CHEN Xuezhong,JIANG Yazhou,LI Shengfa..Trophic ecology of small yellow croaker (Larimichthys polyactis Bleeker): stable carbon and nitrogen isotope evidence[J].中国海洋湖沼学报（英文版）,2011,29(5):1033-1040,8.基金项目
Supported by the Special Research Fund for the National Non-profit in East China Sea Fisheries Research Institute (No.2009M01) （No.2009M01）
