蛤蜊岗不同贝龄四角蛤蜊数量性状的通径分析  

Path Analysis of Quantitative Characters for Mactra veneriformis with Different Ages in Geligang

作　　者：李昂[1,2,3] 冯加岭 李加琦 唐玉泽[1,2] 薛素燕 朱玲 张秀梅[3] 毛玉泽 LI Ang;FENG Jialing;LI Jiaqi;TANG Yuze;XUE Suyan;ZHU Ling;ZHANG Xiumei;MAO Yuze(Yellow Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Qingdao 266071,China;Laboratory for Marine Ecology and Environmental Science,Laoshan Laboratory,Qingdao 266071,China;School of Fishery,Zhejiang Ocean University,Zhoushan 316022,China;Panjin Guanghe Crab Industry Co.,Ltd,Panjin 124200,China)

机构地区：[1]中国水产科学研究院黄海水产研究所,山东青岛266071 [2]崂山实验室海洋生态与环境科学功能实验室,山东青岛266071 [3]浙江海洋大学水产学院,浙江舟山316022 [4]盘锦光合蟹业有限公司,辽宁盘锦124200

出　　处：《渔业科学进展》2024年第1期185-193,共9页Progress in Fishery Sciences

基　　金：青岛海洋科学与技术试点国家实验室山东省专项经费(2021QNLM050103-3,2022QNLM040003-4);辽宁省海洋经济发展项目(20224722);中国水产科学研究院基本科研业务费(2020TD50)共同资助。

摘　　要：为研究蛤蜊岗不同贝龄四角蛤蜊(Mactra veneriformis)形态性状与质量性状之间的相关性,采用相关分析、通径分析和多元回归分析等方法,对1~3龄四角蛤蜊的壳长(SL)、壳宽(SW)、壳高(SH)、活体湿重(BW)和软组织湿重(RW)等参数进行分析,建立形态性状与质量性状之间的回归方程。结果显示,不同生长阶段四角蛤蜊形态性状对质量性状的贡献存在极显著差异(P<0.01)。与1~3龄四角蛤蜊活体湿重最相关的形态性状均为壳宽。对软组织湿重影响最大的形态性状,在1龄贝为壳宽,在2龄和3龄贝为壳长。壳高对2龄四角蛤蜊活体湿重和软组织湿重的直接通径系数均未达到显著水平(P>0.05)。以活体湿重为目标性状时,1~3龄贝均应以壳宽为主要选择性状,并以壳长作为辅助选择性状;以软组织湿重为目标性状时,1龄贝应以壳宽为主要选择性状,同时辅以壳长;2龄和3龄贝均应以壳长为主要选择性状,并分别以壳宽和壳高作为2龄贝和3龄贝的辅助选择性状。研究结果可为蛤蜊岗四角蛤蜊良种选育提供基础数据。Mactra veneriformis is a common economic benthic shellfish with high nutritional value and is widely distributed in the Shandong and Liaoning provinces.Geligang is located in the northern part of Liaodong Bay.It is formed by the water impact of Shuangtaizi and Liaohe River.It has an area of approximately 10000 hm2 with a fertile substrate.It is an important habitat of beach shellfish,such as M.veneriformis.Studies on the influencing factors of wild population quality traits and their correlation with morphological traits are helpful for developing genetic breeding of marine shellfish.To analyze the effects of morphological traits on quality traits of M.veneriformis at different ages in Geligang,the shell length(SL),shell width(SW),shell height(SH),body weight(BW),and soft tissue wet weight(RW)of 1-3 years old M.veneriformis were analyzed using correlation analysis,path analysis,and multiple regression analysis.The M.veneriformis used in the experiment was obtained from the Geliang in Liaodong Bay in September 2022.A total of 801-year-old,1042-year-old,and 1683-year-old M.veneriformis were obtained.The results showed that the morphological traits of M.veneriformis at different growth stages had different contributions to quality traits,and there were significant differences(P<0.01).SW had the greatest direct effect on the BW of 1-3 year-old M.veneriformis,but had different effects on the RW;SW had the greatest direct effect on 1-year-old M.veneriformis;and SL had the greatest effect on 2-and 3-year-old M.veneriformis.The direct path coefficient of SH to the BW and RW of 2-year-old M.veneriformis did not reach significant level(P>0.05)and was eliminated.The optimal regression equation of quantitative traits to qualitative traits of 1-3 year-old M.veneriformis was established.The results showed that when BW was the target trait,SW was the main selection trait and SL was the auxiliary selection trait for 1-3 year-old M.veneriformis.When RW was the target trait,SW should be the main selection trait for 1-year-old M.ve

关 键 词：四角蛤蜊 形态性状 通径分析 相关分析 

分 类 号：S917.4[农业科学—水产科学]