The potential of Hoplias malabaricus(Characiformes:Erythrinidae),a Neotropical carnivore,for aquaculture  

作　　者：Marcos Daniel Renó Faria Aderbal Cavalcante-Neto Ivan Bezerra Allaman Aline Dal’Olio Gomes Renata Guimarães Moreira Eric M.Hallerman Alexandre Wagner Silva Hilsdorf 

机构地区：[1]Unit of Biotechnology,University of Mogi das Cruzes,Mogi das Cruzes,SP,08780-970,Brazil [2]Department of Exact Sciences and Technology,State University of Santa Cruz,Ilhéus,BA,45662-900,Brazil [3]Department of Physiology,Bioscience Institute,University of São Paulo,São Paulo,SP,05508-020,Brazil [4]Department of Fish and Wildlife Conservation,Virginia Polytechnic Institute and State University,Blacksburg,VA 23061-0321,USA

出　　处：《Aquaculture and Fisheries》2019年第3期89-97,共9页渔业学报（英文）

基　　金：We gratefully acknowledge the support of Department of Water and Electric Energy staff for their help during the development of this work.Also,we thank the Foundation for Supporting Teaching and Research for funding this work,Funding for Eric Hallerman's participation in this work was provided in part by the Virginia Agricultural Experiment Station and the Hatch Program of the National Institute of Food and Agriculture,U.S.Department of Agriculture.

摘　　要：We describe key production-related traits of trahira(Hoplias malabaricus),an aquaculture candidate species,in a semi-intensive fish farming system.We quantified growth from hatch through grow-out at two stocking densities and evaluated fillet protein,lipids and fatty-acid content.We made 2430 observations of growth and morphometrics on 270 juvenile fish allocated to four fish ponds,two at 5 fish/m^(2)(90 animals)and two at 10 fish/m^(2)(180 animals)through 11 months.The fish reached an average length of 27.5 cm(±0.38)and 27.0 cm(±0.24),and weight of 263.0 g(±10.54)and 246.7 g(±6.89),respectively,at the low and high densities.There was no significant difference in weight(P>0.05)between the densities for any of the parameters assessed,and hence the same growth curve applied to both densities(A=292.9;B=28.1;and K=0.65).Standard length,however,differed significantly(P<0.05)between densities,with K=0.35 at the low and K=0.29 at the high density.At both stocking densities,total lipids increased throughout the trial,while protein content decreased.Oleic acid(C18:0)increased throughout the experimental period,while docosahexaenoic acid and the n3/n6 profile decreased,with no differences among stocking densities.Hoplias malabaricus may prove a viable aquaculture species in Neotropical regions,where development of native species may contribute to sustainable aquaculture production.

关 键 词：FARMING Growth models Native species Trahira Fatty acids 

分 类 号：R73[医药卫生—肿瘤]