Correlation and Path Analysis between Morphological Traits and Body Weight of Scallop Placopecten magellanicus
YU Di1, CHEN Wei1,2, TENG Weiming1, XIE Xi1, YU Zuoan1, LI Dacheng1, WANG Chong1,2, WANG Qingzhi1
1. Dalian Key Laboratory of Genetic Resources for Marine Shellfish, Liaoning Ocean and Fisheries Science Research Institute, Dalian 116023, China; 2. College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
Abstract：In order to research the effects of morphological traits on body weight and other economic traits of scallop Placopecten magellanicus and obtain a target population with good genetic traits, correlation analysis and path analysis were used to study the impact of shell length (L), shell height (h), and shell width (b) on the the living body weight (m1), soft part weight (m2) and adductor weight (m3). The regression equation of morphological traits on body weight was established. The results showed that the correlation among all traits were extremely significant and positive (P<0.01). The correlation coefficient between shell length and width was the highest (0.977), and the correlation coefficient between shell width and height was the lowest (0.852). The results of path analysis showed that shell width was the main factor affecting the living body weight, soft part weight and adductor weight of scallop, with the path coefficients of 0.536 in living body weight, 0.387 in soft part weight and 0.435 in adductor weight. Shell length had the largest indirect effect on living body weight and adductor weight of scallop (0.869 and 0.702). Shell height had the greatest indirect effect on soft part weight (0.776). Shell width had the largest determining coefficient on living body weight and adductor weight (0.287 and 0.189), and shell height had the largest determining coefficient on the soft part weight (0.208). Stepwise regression method was used to establish the regression formula of morphological traits to living body weight, soft part weight and adductor weight: m1=-365.655+2.596h+7.861b, m2=-85.012+0.654L+1.428b, and m3=-32.944+0.619b, the regression relationship being very significant level (P<0.01). The finding provided a reference for artificial breeding of P. magellanicus.
[1]NAIDU K S, ROBERT G. Chapter 15 fisheries sea scallop, Placopecten magellanicus[J].Developments in Aquaculture and Fisheries Science,2006,35:869-905. [2]COUTURIER C, DABINETT P, LANTEIGNE M. Scallop culture in Atlantic Canada[J]. Cold Water Aquaculture in Atlantic Canada,1995,1:297-340. [3]ROBINSON S M C, PARSONS G J, DAVIDSON L A, et al. Chapter 18 - scallop aquaculture and fisheries in eastern North America[J] Developments in Aquaculture and Fisheries Science,2016,40:737-779. [4]魏振禄,王春德,李春茂.大西洋深海扇贝的繁育与增养殖方法:CN104719200B[P].2017-01-25. [5]SEYOUM M, ALAMEREW S, BANTTE K. Genetic variability, heritability, correlation coefficient and path analysis for yield and yield related traits in upland rice (Oryza sativa L.)[J].Journal of Plant Sciences,2011,7(1):13-22. [6]AKATWIJUKA R, RUBAIHAYO P R, ODONG T L. Correlations and path analysis of yield traits in Sorghum grown in southwestern Highlands of Uganda[J].African Crop Science Journal,2019,27(3):437. [7]RAFIUL M, KHAN A, MAHMUD F, et al. Genetic diversity, correlation and path analysis for yield and yield components of pea (Pisum sativum L.) [J]. World Journal of Agricultural Sciences,2017,13(1):11-16. [8]AHMED M, ABBAS G. Growth parameters of the finfish and shellfish juveniles in the tidal waters of Bhanbhore, Korangi Creek and Miani Hor lagoon[J].Pakistan Journal of Zoology,2000,32(1):21-26. [9]于德良,丁君,郝振林,等.不同养殖群体虾夷扇贝数量性状的相关性与通径分析[J].大连海洋大学学报,2013,28(4):350-354. [10]杜美荣,刘毅,蒋增杰,等.底播虾夷扇贝数量性状的相关性和通径分析[J].水产科学,2015,34(1):8-13. [11]任琰,魏钰恒,潘英.墨西哥湾扇贝(Argopecten irradiansconcentricus)选育系与对照系数量性状对闭壳肌重影响的通径分析[J].水产研究,2020,7(2):84-92. [12]杜美荣,方建光,高亚平,等.不同贝龄栉孔扇贝数量性状的相关性和通径分析[J].水产学报,2017,41(4):580-587. [13]杜美荣,方建光,包振民,等.不同养殖海域栉孔扇贝(Chlamysfarreri)混合家系的通径分析[J].海洋与湖沼,2016,47(5):963-970. [14]梁健,王俊杰,郭永军,等.不同地理群体菲律宾蛤仔表型性状的相关性与通径分析[J].水产科学,2020,39(1):40-47. [15]巫旗生,宁岳,曾志南,等.不同贝龄“金蛎1号”福建牡蛎数量性状的相关性和通径分析[J].厦门大学学报(自然科学版),2018,57(1):72-78. [16]韦嫔媛,李蔚,张兴志,等.不同规格香港牡蛎壳形态性状对重量性状的影响[J].南方农业学报,2020,51(4):961-967. [17]韩自强,李琪.长牡蛎壳橙品系形态性状与体质量的相关及通径分析[J].中国海洋大学学报(自然科学版),2017,47(12):46-52. [18]闫喜武,王琰,郭文学,等.四角蛤蜊形态性状对重量性状的影响效果分析[J].水产学报,2011,35(10):1513-1518. [19]方军,肖国强,张炯明,等.两种壳色文蛤壳形态性状对活体质量的影响[J].大连海洋大学学报,2017,32(3):310-315. [20]薛宝宝,李浩,牛东红,等.不同月龄缢蛏新品种数量性状的相关与通径分析[J].水产学报,2018,42(6):941-949. [21]李莉,王雪,菅玉霞,等.不同月龄大泷六线鱼形态性状与体质量的相关性及通径分析[J].上海海洋大学学报,2019,28(1):58-66. [22]武松,潘发明.SPSS统计分析大全[M].北京:清华大学出版社,2014. [23]HENNEN D R, HART D R. Shell height-to-weight relationships for Atlantic sea scallops (Placopecten magellanicus) in offshore U.S. waters[J].Journal of Shellfish Research,2012,31(4):1133-1144. [24]SARRO C L, STOKESBURY K D E. Spatial and temporal variation in the shell height/meat weight relationship of the sea Scallop Placopecten magellanicus in the georges bank fishery[J].Journal of Shellfish Research,2009,28(3):497-503.
2023, Vol. 42 
