Inter-annual fluctuations of the population structure, condition,length-weight relationship and abundance of sardine, Sardina pilchardus (Walb., 1792), in the nursery and spawning ground (coastal and open sea waters) of the eastern Adriatic Sea (Croatia)

Gorenka Sinovcic; Barbara Zorica; Vanja Cikes Kec; Bosiljka Mustac

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Inter-annual fluctuations of the population structure, condition,length-weight relationship and abundance of sardine, Sardina pilchardus (Walb., 1792), in the nursery and spawning ground (coastal and open sea waters) of the eastern Adriatic Sea (Croatia)

机译：东部亚得里亚海（克罗地亚）的苗圃和产卵场（沿海和公海）沙丁鱼（Sardina pilchardus）（沙丁鱼，沙丁鱼，1792年）的种群结构，状况，长度-重量关系和丰度的年际波动。

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This paper presents inter-annual fluctuations in the population structure, condition, length-weight relationship and abundance of sardine, Sardina pilchardus (Walb., 1792), the most important fish species in the Adriatic Sea. The random samples were obtained from the nursery ground (Zrmanja River estuary, n=2 893) and spawning ground (off Dugi Otok, n =7 628) of the sardine. Representative samples of catches obtained by purse seine fishing were collected during the 2002-2006 period. Total lengths ranged from 5.0 to 19.5 cm (mean lengths between 7.35±1.005 and 13.87±1.102 cm; Zrmanja River estuary) and 11.5 to 19.5 (mean lengths between 15.22±1.826 and 16.19±0.854, off Dugi Otok). The length-weight relationships of sardine from the Zrmanja River estuary and off Dugi Otok point to positive and negative allometry, respectively. A comparison of the allometric condition factor (K_a) of sardine specimens, which ranged from 13.0 to 16.0 cm, showed higher values in the area off Dugi Otok (K _a =0.467) than in the area of the Zrmanja River estuary (K_a=0.331), especially during 2003 (K_a =2.653). In terms of the fish abundance index, seasonal fluctuations were noticed. The highest values were observed in the area off Dugi Otok during autumn and in the Zrmanja River estuary during spring.

机译：本文介绍了亚得里亚海最重要的鱼类沙丁鱼Sardina pilchardus（Walb。，1792）的种群结构，状况，长度重量关系和丰度的年际波动。从沙丁鱼的苗圃场（Zrmanja River河口，n = 2 893）和产卵场（Dugi Otok离岸，n = 7 628）获得随机样本。在2002-2006年期间收集了通过围网捕鱼获得的代表性渔获物样本。总长度为5.0至19.5厘米（平均长度在7.35±1.005至13.87±1.102厘米； Zrmanja河河口）和11.5至19.5（平均长度在15.22±1.826至16.19±0.854之间，杜吉·奥托克附近）。来自Zrmanja河河口和Dugi Otok附近沙丁鱼的长度-重量关系分别指向正向和负向异速结皮。沙丁鱼标本的变态条件因子（K_a）在13.0至16.0 cm范围内的比较显示，Dugi Otok离岸区域（K _a = 0.467）的值比Zrmanja河口区域（K_a = 0.331）高。），尤其是在2003年期间（K_a = 2.653）。在鱼类丰度指数方面，注意到了季节性波动。在秋季，在Dugi Otok附近地区以及在春季，在Zrmanja河口地区观察到最高值。

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来源
《Acta Adriatica》 |2009年第1期|11-21|共11页
作者
Gorenka Sinovcic; Barbara Zorica; Vanja Cikes Kec; Bosiljka Mustac;
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作者单位

Institute of Oceanography and Fisheries, P.O. Box 500, 21000 Split, Croatia;

Institute of Oceanography and Fisheries, P.O. Box 500, 21000 Split, Croatia;

Institute of Oceanography and Fisheries, P.O. Box 500, 21000 Split, Croatia;

Adria d.d., fishing, fish-processing and fish trade company, Zadar, Croatia;

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收录信息美国《科学引文索引》(SCI);
原文格式 PDF
正文语种 eng
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关键词
sardine; population structure; length-weight relationship; condition; abundance index;

机译：沙丁鱼;人口结构;长度-重量关系;健康）状况;丰度指数;

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Inter-annual fluctuations of the population structure, condition,length-weight relationship and abundance of sardine, Sardina pilchardus (Walb., 1792), in the nursery and spawning ground (coastal and open sea waters) of the eastern Adriatic Sea (Croatia)

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