每年出版 6 期
ISSN 打印: 0018-8166
ISSN 在线: 1943-5991
Indexed in
Peculiarities of Group Growth of Specimens in Populations of the Narrow-clawed Crayfish Astacus leptodactylus
摘要
Dimensional and age structure of the narrow-clawed crayfish populations was analyzed. Crayfish growth is described by the Bertalanffy equation. Values of Bertalanffy growth parameters L∞ and k are not species-specific, even in the same region and relatively close habitat conditions they can vary within wide limits. Very weak inverse relation was found between L∞ and k, which makes invalid calculations of demographic characteristics on the basis of general equations of interrelation of populational and growth parameters. Growth constant k appears to be more informative than definitive body size (L∞).
-
Alekhnovich A. V., Identification of the annual catch and fishing measures that ensure the optimal fishing of narrow-clawed crayfish <i>Pontastacus leptodactylus</i> in the waterbodies of Belarus, Proceedings of the National Academy of Sciences of Belarus, Biological Series, 64, 3, 2019. Crossref