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Analysis on the Effects of Morphological Traits of Lutraria sieboldii on Its Body Mass Trait

Agricultural Biotechnology 2021年第4期10卷 71-76,103页

作者： Dan GUO Jian CHEN Ziqin ZHAI Tongtong REN Jijin WANG Lirong BAI Dahui YU Animal Science and Technology co.lege Guangxi UniversityNanning 530004China Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity co.servation College of OceanographyBeibu Gulf UniversityQinzhou 535011China beihai jinbuhuan aquatic products co. Ltd.Beihai 536007China

[Objectives]This study was co.ducted to explore the relationship between morphological traits and body mass trait of Lutraria sieboldii.[Methods]110 were randomly selected from 120 2^(nd)-instar *** co.lected from the Tieshangang area of beihai,Guangxi,and 132 were randomly selected from 150 shellfish at the instar of *** morphological traits were measured:shell length(SL),shell height(SH),shell width(SW),anterior length(AL),posterior length(PL),nose length(NL)in closed shell state,and maximum open shell width(OS)between two shells in closed shell state,and the body mass trait BM was also *** methods such as path analysis and multiple regression were used for data analysis,and the effects of these seven morphological traits on the body mass trait were studied,*** co.relation between the tested seven quantitative traits and one body mass trait was all positive,all reaching an extremely significant level(Pco.relation co.fficient with shell length(0.922),that is,shell length had the greatest direct impact on the body mass trait;the path co.fficient was 0.700;and the final multiple regression equation established was BM=-124.882+1.189 SL+1.551 SH+1.035 SW+0.119 NL,and the total determination co.fficient(R^(2))on body mass was *** body mass trait of the shellfish at the instar of 0.6 had the highest co.relation co.fficient with shell length(0.859),that is,shell length had the greatest direct impact on the body mass trait;the path co.fficient was 0.494;and the final multiple regression equation established was BM=-1.917+0.111 SL+0.021 NL+0.078 SW+0.032 OS,and the total determination co.fficient(R~2)on body mass was *** multivariate regression variance analysis showed that the regression between the morphological traits and body mass trait of the *** at the instars of 2 and 0.6 reached an extremely significant level(P<0.01)

关键词： Lutraria sieboldi Morphological traits co.relation analysis Multiple regression Path analysis

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