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首页> 外文期刊>Turkish Journal of Fisheries & Aquatic Sciences >Population Structure, Growth, Mortality and Fecundity of Palaemon adspersus (Rathke 1837; Decapoda: Palaemonidae) in the Parila Lagoon (Croatia, SE Adriatic Sea) with Notes on the Population Management
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Population Structure, Growth, Mortality and Fecundity of Palaemon adspersus (Rathke 1837; Decapoda: Palaemonidae) in the Parila Lagoon (Croatia, SE Adriatic Sea) with Notes on the Population Management

机译：帕拉拉泻湖（克罗地亚，亚得里亚海）的Pala藜adspersus（Rathke 1837;十足目：Palaemonidae）的种群结构，生长，死亡率和生殖力，有关种群管理

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摘要

Baltic prawn, Palaemon adspersus population from the Parila lagoon (SE Adriatic Sea, Croatia) was studied between 2010-2011. Specimens were collected monthly in order to determine population structure, growth, mortality and reproduction of this important decapods species. The von Bertalanffy growth function parameters were found L infinity=58.98 mm, K=0.975 year(-1) and t(o)=-0.0046 years for males and L infinity=72.45 mm, K=1.058 year(-1) and t(o)=-0.0005 years for females. Growth performance (Phi') for females was higher (3.229) than that of males (3.121). Maximum calculated age was 3.07 and 2.83 years for males and females, respectively, while total mortality was estimated as 3.72 per year for males and 3.79 per year for females. The females carried on average 2157 eyed eggs per 1 g of total body weight, but exhibited a high variability of fecundity. The results show overexploitation of the resource and therefore management rules based on the precautionary approach are proposed. These rules are based on the limitation of the fishing effort and the establishment of 'no-take' periods during the year as well as the proposal of two biological reference points based on a minimum landing size related to the size-at-maturity and the fishing mortality at Maximum Sustainable Yield.
机译：在2010-2011年之间，对来自Parila泻湖（克罗地亚亚得里亚海）的波罗的海虾，Pala虾的种群进行了研究。每月收集标本以确定该重要十足动物的种群结构，生长，死亡率和繁殖。发现男性的von Bertalanffy生长函数参数L无穷大= 58.98 mm，K = 0.975年（-1）和t（o）=-0.0046年，男性无穷无穷L = 72.45 mm，K = 1.058年（-1）和t （o）= -0.0005年（对于女性）。女性的生长表现（Phi'）（3.229）高于男性（3.121）。男性和女性的最大计算年龄分别为3.07和2.83岁，而男性的总死亡率估计为每年3.72和女性每年3.79。雌性每1克体重平均可携带2157眼卵，但繁殖力变化很大。结果表明该资源的过度开发，因此提出了基于预防措施的管理规则。这些规则是基于一年中捕捞努力的局限性和“无捕捞”时间的确定，以及基于与成熟度和捕捞能力有关的最小着陆面积的两个生物学参考点的建议。最大可持续产量的捕捞死亡率。

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