Effects of dietary essential fatty acids on reproduction rates of a subtropical calanoid copepod, Acartia erythraea

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	Effects of dietary essential fatty acids on reproduction rates of a subtropical calanoid copepod, Acartia erythraea
	Chen, Mianrun ; Liu, Hongbin ; Chen, Bingzhang ; Chen BZ(陈炳章)
刊名	http://dx.doi.org/10.3354/meps09685
	2012
关键词	MARINE PLANKTONIC COPEPOD EGG-PRODUCTION FOOD QUALITY TEMORA-LONGICORNIS HATCHING SUCCESS TONSA DANA POPULATION-GROWTH COASTAL WATERS NORTH-SEA ZOOPLANKTON
英文摘要	University Grants Committee of Hong Kong's AoE [AoE/P-04/04]; Hong Kong Research Grants Council's (RGC) GRF [661809, 661610]; TUYF Charitable Trust [TUYF10SC08]; Xiamen University [2011121007]; To understand the role of food quality in planktonic trophic interactions and marine copepod reproduction, we conducted laboratory experiments to investigate the effect of different prey with specific fatty acid profiles on the reproduction of Acartia erythraea. Copepod egg production rates and hatching success were assessed using a mixed diet combining Dunaliella sp. (containing no long-chain polyunsaturated fatty acids, PUFAs) with the diatom Thalassiosira weissflogii (high eicosapentaenoic acid, EPA), the dinoflagellate Prorocentrum dentatum (high docosahexaenoic acid, DHA), the cryptophyte Rhodomonas sp. (moderate EPA and DHA) or the ciliate Strombidium sulcatum (high nitrogen), respectively. Copepods fed a mono-diet of Dunaliella sp. were used as controls. The results showed that a food mixture with dinoflagellates provided the highest egg production rate and hatching success. The bacterivorous ciliate was not a good prey for copepod reproduction because of the deficit in fatty acid composition, despite its low C:N ratio. Generalized additive models indicated that food quality (ingested PUFAs) was important for egg production in addition to food quantity. Among PUFAs, DHA was the most important specific fatty acid based on its high partial correlation coefficient for egg production rate. Egg hatching success was significantly correlated with the percentage of the 3 major omega 3 unsaturated fatty acids (alpha-linolenic acid ALA, EPA and DHA) in diets.
语种	英语
出版者	MAR ECOL PROG SER
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/87845]
专题	海洋环境－已发表论文
推荐引用方式 GB/T 7714	Chen, Mianrun,Liu, Hongbin,Chen, Bingzhang,et al. Effects of dietary essential fatty acids on reproduction rates of a subtropical calanoid copepod, Acartia erythraea[J]. http://dx.doi.org/10.3354/meps09685,2012.
APA	Chen, Mianrun,Liu, Hongbin,Chen, Bingzhang,&陈炳章.(2012).Effects of dietary essential fatty acids on reproduction rates of a subtropical calanoid copepod, Acartia erythraea.http://dx.doi.org/10.3354/meps09685.
MLA	Chen, Mianrun,et al."Effects of dietary essential fatty acids on reproduction rates of a subtropical calanoid copepod, Acartia erythraea".http://dx.doi.org/10.3354/meps09685 (2012).