马氏珠母贝体尺性状对珍珠层和体腔容积的影响

doi:10.16378/j.cnki.1003-1111.24137

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Abstract In order to investigate the effect of body size traits on shell nacre weight and cavity volume of pearl oyster Pinctada fucata martensii, shell length (L), shell width (b), shell height (h), shell nacre weight and shell cavity volume were measured in 220 individuals of pearl oyster cultured and randomly sampled from Liusha Bay aquaculture area in Guangdong province, and the effects of the body size traits (shell length, shell width, and shell height) on shell nacre weight and shell cavity volume of pearl oyster were investigated by correlation analysis, multiple regression analysis, and path analysis. The results showed that the pearl oyster had coefficient of variation of the body size traits from 8.74% to 12.29%, with the variation coefficients of 25.18% in shell nacre weight and 32.73% in shell cavity volume. The correlation coefficients of all the traits were found to be very significant (P<0.01). The results of path analysis were showed to be consistent with the analysis of determination degree, with the body size trait with the highest determination degree (determination coefficients of 0.321) for shell nacre weight and shell cavity volume (0.195) for shell width. The optimal regression equation was expressed as y₁=－8.361＋0.116L＋0.413b(r²=0.684)for body size traits on shell nacre weight(y₁), and y₂=－15.462＋0.210L＋0.608b＋0.113h(r²=0.704)for shell cavity volume(y₂). The findings provide theoretical reference with the selective breeding of superior varieties of pearl oyster P. fucata martensii.

Key words： Pinctada fucata martensii body size shell nacre weight shell cavity volume path analysis

Received: 16 August 2024

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S968.35

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	Articles by authors
	LIN Yujing
	ZOU Heqi
	YANG Chuangye
	LIAO Yongshan
	WANG Qingheng
	DENG Yuewen

Cite this article:

LIN Yujing,ZOU Heqi,YANG Chuangye, et al. Effects of Body Size on Nacre Weight and Cavity Volume of Pearl Oyster Pinctada fucata martensii[J]. Fisheries Science, 2025, 44(5): 800-805.

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https://www.shchkx.com/EN/10.16378/j.cnki.1003-1111.24137 OR https://www.shchkx.com/EN/Y2025/V44/I5/800

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