Settlement and metamorphosis of R apana venosa(Gastropoda: Muricidae) with implications for artificial culture  

作　　者：YU Zhenglin YANG Meijie SONG Hao HU Zhi ZHOU Cong WANG Xiaolong LI Haizhou ZHANG Tao 

机构地区：[1]Key Laboratory of Marine Ecology and Environmental Sciences,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China [2]Laboratory for Marine Ecology and Environmental Science,Qingdao National Laboratory for Marine Science and Technology,Qingdao 266237,China [3]University of Chinese Academy of Sciences,Beijing 100049,China [4]Center for Ocean Mega-Science,Chinese Academy of Sciences,Qingdao 266071,China [5]Shandong Fu Han Ocean Sci-Tech Co.Ltd.,Haiyang 265114,China

出　　处：《Journal of Oceanology and Limnology》2020年第1期249-259,共11页海洋湖沼学报（英文）

基　　金：Supported by the National Natural Science Foundation of China(No.31572636);the Natural Science Foundation of Shandong Province(No.ZR2019BD003);the China Postdoctoral Science Foundation(No.2019M652498);the Earmarked Fund for Modern Agro-industry Technology Research System(No.CARS-49);the Special Funds for Talent Project of Taishan Industry Leader;the ‘Double Hundred’ Blue Industry Leader Team of Yantai;the Creative Team Project of the Laboratory for Marine Ecology and Environmental Science,Qingdao National Laboratory for Marine Science and Technology(No.LMEES-CTSP-2018-1)

摘　　要：The rapa whelk Rapana venosa transforms from a phytophagous larva to a camivorous juvenile after settlement and metamorphosis.The high mortality rate and low metamorphosis rate(<1%)of larvae are among the key factors limiting the recovery of the resources ofR.venosa.We studied these two processes and showed that the larva has the ability to settle and metamorphose in the middle and late 4 spiral whorl period,and the use of substrates(scallop shells with oysters)can significantly improve the settlement and metamorphosis rate of larvae.The presence of darkness,juvenile bivalve shellfish,and oyster polysaccharide could effectively increase the rates of larval settlement and metamorphosis.Our findings broaden the understanding of settlement and metamorphosis in gastropods and can be used to improve population control,resource recovery and commercial breeding strategies for R.venosa.The rapa whelk Rapana venosa transforms from a phytophagous larva to a carnivorous juvenile after settlement and metamorphosis. The high mortality rate and low metamorphosis rate(<1%) of larvae are among the key factors limiting the recovery of the resources of R. venosa. We studied these two processes and showed that the larva has the ability to settle and metamorphose in the middle and late 4 spiral whorl period, and the use of substrates(scallop shells with oysters) can signi?cantly improve the settlement and metamorphosis rate of larvae. The presence of darkness, juvenile bivalve shell?sh, and oyster polysaccharide could ef fectively increase the rates of larval settlement and metamorphosis. Our ?ndings broaden the understanding of settlement and metamorphosis in gastropods and can be used to improve population control, resource recovery and commercial breeding strategies for R. venosa.

关 键 词：LARVAL development substrate OYSTER POLYSACCHARIDE commercial BREEDING 

分 类 号：S91[农业科学—水产科学]