{"title":"Optimum Salinity for Growth of Tropical Eel Anguilla marmorata Quoy & Gaimard, 1824 in Nursery Culture","authors":"R. Cadiz","doi":"10.33997/j.afs.2020.33.4.002","DOIUrl":null,"url":null,"abstract":"Due to the reduced supply of commercially important temperate eels, tropical species including Anguilla marmorata Quoy & Gaimard, 1824 are being targeted as an alternative to satisfy the high demand for eel products. However, optimum ecological conditions for its aquaculture remained understudied. The present study evaluated the salinity conditions optimum for the growth of A. marmorata in the nursery culture. Growth performances of elvers were assessed after 90 days of culture at 0, 10, 15, 20 and 25 ppt salinity. Results showed that survival and feed conversion ratio were not influenced by the culture salinity. Significant improvement in per cent weight gain, specific growth rate and daily length increase were observed at 15 and 20 ppt. Polynomial quadratic regression analysis indicates that salinity of 18.14 ppt is optimum for the growth of this eel in nursery culture. These findings can serve as a basis for developing brackish water nursery culture of the tropical eel A. marmorata .","PeriodicalId":37296,"journal":{"name":"Asian Fisheries Science","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Asian Fisheries Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.33997/j.afs.2020.33.4.002","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Environmental Science","Score":null,"Total":0}
引用次数: 2
Abstract
Due to the reduced supply of commercially important temperate eels, tropical species including Anguilla marmorata Quoy & Gaimard, 1824 are being targeted as an alternative to satisfy the high demand for eel products. However, optimum ecological conditions for its aquaculture remained understudied. The present study evaluated the salinity conditions optimum for the growth of A. marmorata in the nursery culture. Growth performances of elvers were assessed after 90 days of culture at 0, 10, 15, 20 and 25 ppt salinity. Results showed that survival and feed conversion ratio were not influenced by the culture salinity. Significant improvement in per cent weight gain, specific growth rate and daily length increase were observed at 15 and 20 ppt. Polynomial quadratic regression analysis indicates that salinity of 18.14 ppt is optimum for the growth of this eel in nursery culture. These findings can serve as a basis for developing brackish water nursery culture of the tropical eel A. marmorata .
期刊介绍：
The Asian Fisheries Science (AFS) was first published in 1987. It is an open access SCOPUS indexed publication of the Asian Fisheries Society. Four regular issues are published annually in March, June, September and December. In addition, special issues are published on specific topics. Full texts of the articles are available for free download and there is no publication fee. The journal promotes fisheries science which has an international appeal with special focus on Asian interests.
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