利用甲壳几何形态分析鉴定 "洗澡 "的中华绒螯蟹(Eriocheir sinensis)

IF 2.1 3区 农林科学 Q2 FISHERIES
Fishes Pub Date : 2023-12-21 DOI:10.3390/fishes9010006
Yiqian Xu, Junren Xue, Hongbo Liu, T. Jiang, Xiubao Chen, Jian Yang
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引用次数: 0

摘要

为了证实非阳澄湖地区的中华绒螯蟹(俗称大闸蟹或河蟹)在被 "引进 "或 "浸浴 "养殖后是否与阳澄湖围网和高标准改良养殖池塘中的原蟹发生形态趋同,我们采用了几何形态计量学方法。通过该方法,我们比较分析了阳澄湖和昆山市高标准池塘中原蟹和 "引进 "蟹在 "浸浴 "养殖后 0、7、14 和 30 天的胴体形态动态变化。采用 35 个已建立的地标系统对蟹体进行几何形态分析。通过对相对变形分值的逐步判别分析,发现阳澄湖地区和高标准改造池塘中的 "引进 "原蟹和常住原蟹在 "浸浴 "养殖 7、14 和 30 天后存在形态差异。判别分析的准确率为 100%。几何形态可视化结果表明,浴养河蟹的甲壳在水中发生了适应性变化。然而,即使经过一个月的浸浴养殖,湖泊和池塘中的 "引进 "河蟹也无法达到原始河蟹的形态特征,即它们的甲壳没有表现出原始河蟹的特征。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Identification of “Bathed” Chinese Mitten Crabs (Eriocheir sinensis) Using Geometric Morphological Analysis of the Carapace
To confirm whether Chinese mitten crabs (Eriocheir sinensis), commonly known as hairy crabs or river crabs, in non-Yangcheng Lake areas undergo morphological convergence with the original crabs in the Yangcheng Lake purse seine and high-standard modified aquaculture ponds after being “introduced” or “bathed”-cultured, we employed a geometric morphometrics approach. This approach allowed us to compare and analyze the dynamic changes in the carapace morphology of both the original and “introduced” crabs in Yangcheng Lake and high-standard ponds in Kunshan City at 0, 7, 14, and 30 days after “bathing” culture. The geometric morphological analysis of the carapace was conducted using a system of 35 established landmarks. The stepwise discriminant analysis of the relative distortion score revealed morphological differences between “introduced” and resident original crabs in the Yangcheng Lake area and in high-standard modified ponds after 7, 14, and 30 days of bathing culture. The accuracy of the discriminant analysis was 100%. The results of the geometric morphological visualization demonstrated that the carapaces of the bathed crabs underwent adaptive changes in the water. However, even after one month of bathing culture, the “introduced” crabs in lakes and ponds could not reach the morphological characteristics of the original crabs, i.e., their carapaces did not exhibit the characteristics of the original crabs.
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来源期刊
Fishes
Fishes Multiple-
CiteScore
1.90
自引率
8.70%
发文量
311
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