POPULATION PARAMETERS OF SPRAT (SPRATTUS-SPRATTUS PHALERICUS RISSO) FROM THE TURKISH BLACK-SEA COAST

被引：12
作者：
AVSAR, D
机构：
[1] Institute of Marine Sciences, Middle East Technical University, Erdemli, Icel, P.O. Box 28
来源：
FISHERIES RESEARCH | 1995年 / 21卷 / 3-4期
关键词：
BLACK SEA; POPULATION STRUCTURE; SPRATTUS SPRATTUS;
D O I：
10.1016/0165-7836(94)00288-8
中图分类号：
S9 [水产、渔业];
学科分类号：
0908 ;
摘要：
Population parameters of the sprat (Sprattus sprattus phalericus RISSO), collected from the Turkish Black Sea cost between 1990 and 1992 were investigated. The mean annual growth rates in length and weight were 25.1 mm and 2.3 g, respectively. Von Bertalanffy growth constants were calculated as W-infinity = 15.78 (g), L(infinity) = 137.59 (mm), K = 0.42 (year(-1)) and t(o) = -1.09 (year). The growth parameters found in this study were compared with those from previous studies in the Black Sea and other areas. Total mortality rate and its components were Z = 1.64, M = 0.73 and F = 0.91. All mortality rates increased during winter-spring and decreased in autumn. A slight over-exploitation was found on the stock of the Turkish Black Sea sprat.
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收藏
页码：437 / 453
页数：17
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