不同地理群体毛蚶形态学性状对体质量性状的影响分析

doi:10.16378/j.cnki.1003-1111.25103

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Abstract In order to investigate the influence of morphological traits on weight-related traits in ark shell Scapharca subcrenata in distinct geographical populations, the relationships between 12 morphological traits (including shell length, shell height, and shell width) and both live body weight and soft part weight were determined and analyzed in the samples collected from Qingdao, Shandong province, Tangshan, Hebei province and Taizhou, Zhejiang province by correlation analysis, path analysis, and coefficient of determination analysis. The results showed that shell width was the most critical morphological indicator influencing live weight, with direct path coefficients of 0.587 for Qingdao population, 0.366 for Tangshan population, and 0.464 for Taizhou population. Significant differences were observed in both morphological and weight traits among the three geographical populations (P<0.05). There was significantly higher shell width-to-shell length ratio in the northern populations (Tangshan and Qingdao) compared to the southern Taizhou population (0.68 and 0.70 vs. 0.64), indicating a close relationship between shell morphology and ecological adaptability. Northern populations had a more convex shell shape, whereas southern populations displayed a flatter appearance. The r²values of the multiple regression equations between live weight and morphological traits were found to be varied from 0.718 to 0.888, with the maximal value in the Qingdao population. Shell width and shell length were identified as the primary influencing factors. In contrast, the r² values for soft part weight were ranged from 0.492 to 0.702, relatively lower and may be associated with unmeasured factors such as gonadal development. The findings provide valuable insights for the assessment of ark shell germplasm resources and the development of breeding strategies.

Key words： Scapharca subcrenata morphological trait body weight trait correlation analysis path analysis

Received: 25 April 2025

PACS:

S968.314

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	Articles by authors
	WANG Chenghao
	HUANG Gengyin
	LI Li
	FANG Xiao
	ZHANG Chao
	GUO Yongjun
	CHEN Limei

Cite this article:

WANG Chenghao,HUANG Gengyin,LI Li, et al. Analysis of Influence of Morphological Traits on Weight Traits among Different Geographical Populations of Ark Shell Scapharca subcrenata[J]. Fisheries Science, 2026, 45(1): 45-54.

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https://www.shchkx.com/EN/10.16378/j.cnki.1003-1111.25103 OR https://www.shchkx.com/EN/Y2026/V45/I1/45

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