Eelgrass Detritus as a Food Source for the Sea Cucumber Apostichopus japonicus Selenka (Echinidermata: Holothuroidea) in Coastal Waters of North China: An Experimental Study in Flow-Through Systems

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	Eelgrass Detritus as a Food Source for the Sea Cucumber Apostichopus japonicus Selenka (Echinidermata: Holothuroidea) in Coastal Waters of North China: An Experimental Study in Flow-Through Systems
	Liu, Xujia 1,2; Zhou, Yi1 ; Yang, Hongsheng1 ; Ru, Shaoguo 3; Zhou, Y
刊名	PLOS ONE
	2013-03-07
卷号	8 期号:3 页码:e58293
ISSN号	1932-6203
通讯作者	Zhou, Y
中文摘要	Eelgrass ecosystems have a wide variety of ecological functions in which living tissues and detritus may be a food source for many marine animals. In this study, we conducted a laboratory simulating experiment to understand the trophic relationship between the eelgrass Zostera marina L and the sea cucumber Apostichopus japonicus. A mixture of decaying eelgrass debris and seafloor surface muddy sediments was used as food to feed A. japonicus, and then specific growth rates (SGR) and fecal production rates (FPR) were measured. According to the proportion of eelgrass debris, we designed five treatment diets, i.e., ES0, ES10, ES20, ES40, and ES100, with eelgrass debris accounting for 0%, 10%, 20%, 40%, and 100% in dry weight, respectively. Results showed that diet composition had a great influence on the growth of A. japonicus. Sea cucumbers could use decaying eelgrass debris as their food source; and when the organic content of a mixture of eelgrass debris and sediment was 19.6% (ES40), a relatively high SGR (1.54%.d(-1)) and FPR (1.31 g.ind.(-1) d(-1)) of A. japonicus were obtained. It is suggested that eelgrass beds can not only provide habitat for the sea cucumber A. japonicus but can also provide an indirect food source for the deposit feeder. This means that the restoration and reconstruction of eelgrass beds, especially in coastal waters of China, would be a potential and effective measure for sea-cucumber fisheries, in respect to both resource restoration and aquaculture of this valuable species.
英文摘要	Eelgrass ecosystems have a wide variety of ecological functions in which living tissues and detritus may be a food source for many marine animals. In this study, we conducted a laboratory simulating experiment to understand the trophic relationship between the eelgrass Zostera marina L and the sea cucumber Apostichopus japonicus. A mixture of decaying eelgrass debris and seafloor surface muddy sediments was used as food to feed A. japonicus, and then specific growth rates (SGR) and fecal production rates (FPR) were measured. According to the proportion of eelgrass debris, we designed five treatment diets, i.e., ES0, ES10, ES20, ES40, and ES100, with eelgrass debris accounting for 0%, 10%, 20%, 40%, and 100% in dry weight, respectively. Results showed that diet composition had a great influence on the growth of A. japonicus. Sea cucumbers could use decaying eelgrass debris as their food source; and when the organic content of a mixture of eelgrass debris and sediment was 19.6% (ES40), a relatively high SGR (1.54%.d(-1)) and FPR (1.31 g.ind.(-1) d(-1)) of A. japonicus were obtained. It is suggested that eelgrass beds can not only provide habitat for the sea cucumber A. japonicus but can also provide an indirect food source for the deposit feeder. This means that the restoration and reconstruction of eelgrass beds, especially in coastal waters of China, would be a potential and effective measure for sea-cucumber fisheries, in respect to both resource restoration and aquaculture of this valuable species.
学科主题	Science & Technology - Other Topics
WOS标题词	Science & Technology
类目[WOS]	Multidisciplinary Sciences
研究领域[WOS]	Science & Technology - Other Topics
关键词[WOS]	STICHOPUS-JAPONICUS ; ECOSYSTEM SERVICES ; SEAGRASS MEADOWS ; GROWTH ; ESTABLISHMENT ; TREMULUS ; HABITAT
收录类别	SCI
原文出处	10.1371/journal.pone.0058293
语种	英语
WOS记录号	WOS:000318334500064
公开日期	2014-07-17
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/16468]
专题	海洋研究所_海洋生态与环境科学重点实验室
通讯作者	Zhou, Y
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 2.Guangxi Inst Oceanol, Beihai, Peoples R China 3.Ocean Univ China, Sch Marine Life Sci, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xujia,Zhou, Yi,Yang, Hongsheng,et al. Eelgrass Detritus as a Food Source for the Sea Cucumber Apostichopus japonicus Selenka (Echinidermata: Holothuroidea) in Coastal Waters of North China: An Experimental Study in Flow-Through Systems[J]. PLOS ONE,2013,8(3):e58293.
APA	Liu, Xujia,Zhou, Yi,Yang, Hongsheng,Ru, Shaoguo,&Zhou, Y.(2013).Eelgrass Detritus as a Food Source for the Sea Cucumber Apostichopus japonicus Selenka (Echinidermata: Holothuroidea) in Coastal Waters of North China: An Experimental Study in Flow-Through Systems.PLOS ONE,8(3),e58293.
MLA	Liu, Xujia,et al."Eelgrass Detritus as a Food Source for the Sea Cucumber Apostichopus japonicus Selenka (Echinidermata: Holothuroidea) in Coastal Waters of North China: An Experimental Study in Flow-Through Systems".PLOS ONE 8.3(2013):e58293.