コンテンツメニュー

Imai Chifumi


Growth model for willowy flounder Tanakius kitaharai from western Sea of Japan during period of stock increase

Journal of National Fisheries University Volume 57 Issue 1 Page 57-63
published_at 2008-10
57-1-57-63.pdf
[fulltext] 907 KB
Title
資源増大期における日本海西部海域産ヤナギムシガレイの成長モデル
Growth model for willowy flounder Tanakius kitaharai from western Sea of Japan during period of stock increase
Creators Imai Chifumi
Creators Itoh Noriko
Source Identifiers [PISSN] 0370-9361
Creator Keywords
otolith Tanakius kitaharai von Bertalanffy growth model willowy flounder
Revised growth models are proposed for willowy flounder Tanakius kitaharai from western Sea of Japan, the population of which has been increasing in recent years. Annual rings of blind side sagittal otoliths were analysed and back-calculated length (TL : mm) equations derived from the otolith radii (R : mm); TL=3.3+110・R (males), TL=3.3+113・R (females) and TL=3.3+112・R (males and females). Von Bertalanffy growth models, L_t=249{1-e^{-0.272(t+0.181)}} (males), L_t=418{1-e^{-0.168(t+0.432)}} (females) and L_t=482{1-e^{-0.130(t+0.368)}} (males and females) fitted well to age-length relationships, using the non-linear least squares method. Each length at a given age was markedly greater than that reported from the same region in the 1960’s.


Languages jpn
Resource Type departmental bulletin paper
Publishers National Fisheries University
Date Issued 2008-10
File Version Version of Record
Access Rights open access
Relations
[ISSN]0370-9361