Morphological development and growth of the freshwater mussel Anodonta woodiana from early juvenile to adult
文献类型: 外文期刊
第一作者: Chen, Xiubao
作者: Chen, Xiubao;Liu, Hongbo;Su, Yanping;Yang, Jian
作者机构:
关键词: bivalve;morphological structure;organogenesis;growth rates;biometric relationships;artificial culture
期刊名称:INVERTEBRATE REPRODUCTION & DEVELOPMENT ( 影响因子:0.952; 五年影响因子:1.174 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Freshwater mussels of Anodonta woodiana were artificially cultured from newly transformed juveniles (day 0) to the onset of adulthood (day 750). Morphological and organogenic development, growth rates, and biometric relationships were studied during the sequential developmental stages. The most obvious feature of day 0 juveniles was a mobile foot. Adult morphology was apparent after 60days, and the inner organs were well formed. Annuli were deposited on the shell's surface in winter. Males and females became sexually mature at approximately 750days. Early increases in shell size were rapid (0-180days), whereas between 180 and 750days, growth rate became slower and stable. The relationship between length (L, mm) and age (t, days) from 0 to 60days was logistic: L=21.98/[1+e(-0.067(t-65.131))] (R-2=0.955), while the relationship fitted in von Bertalanffy growth equation from 60 to 750days: L=58.417[1-e(-0.015(t-46.782))] (R-2=0.906). The relationship between length and width was negative allometric, but the relationships between length and height and between width and height were positive allometric. The results can provide a useful basis for further study on A. woodiana and its population restoration through artificial cultivation.
分类号: Q95
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