Theoretical basis of allometric relationships in juvenile brachyura: Data from a West African mangrove swamp crab population
Theoretical basis of allometric relationships in juvenile brachyura: Data from a West African mangrove swamp crab population
复制标题
幼年短尾蟹异速生长关系的理论基础：来自西非红树林沼泽蟹种群的数据
DOI：
--
复制
发表时间：
2009
期刊：
影响因子：
--
通讯作者：
N. Abby
中科院分区：
文献类型：
--
作者：
I. Ewa;N. Abby
从理论上研究了幼蟹背甲长度-重量关系，以评估异速生长因子的相关性和条件因子的有效性，因为大多数渔业调查都是针对成年种群进行的，这些因子往往无法确定。异速生长因子似乎是方程中的主要参数：W = aLb（其中W =体重，a是常数，L =甲壳长度）。发现参数a（也称为条件因子K，称为重量指数）和k = 103 W/L3的意义较小，它们与B密切相关。理论值B = 3在蟹类渔业研究中很少出现，观察到的范围要宽得多。因此，建议假定的理论值B = 3不适用于所有鱼类动物调查，因为渔业科学家通常这样做。本文的分析研究为阐明异速生长因子B的生物学意义开辟了一条新的途径，即通过分形几何理论（其中B被看作是一个分形维数等价物）和致敬个体发育，其中B是蟹类早期生活史中的一个临界点。
The carapace length-weight relationship in juvenile Brachyura (crabs) was studied theoretically to assess the relevance of the allometric factor and the validity of the condition factor as these factors are often not determined because most fishery investigations are conducted for adult population. The allometric factor appears to be the main parameter in the equation: W = aLb (where W = weight, a is a constant and L = carapace length). Parameters a (also called the condition factor K, known as the ponderal index) and k = 103 W/L3 were found to be of less significance and they were closely related to b. The theoretical value of b = 3 was found to be rarely met in crab fishery studies; rather much wider range was observed. It was, therefore, recommended that the assumed theoretical value of b = 3 would not be applied in all ichthiofauna surveys as it is generally commonly done by fishery scientists. The present analytical studies has opened a new approach to the elucidation of the biological significance of the allometric factor b, through the theories of tractal geometry (where b is seen as a fractal dimension equivalent and salutatory ontogeny where b is a critical point in the early life history of crabs.