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首页> 外文期刊>ICES Journal of Marine Science >Growth and mortality of transient shrimp populations (Farfantepenaeus spp.) in a coastal lagoon of Mexico: role of the environment and density-dependence
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Growth and mortality of transient shrimp populations (Farfantepenaeus spp.) in a coastal lagoon of Mexico: role of the environment and density-dependence

机译：墨西哥沿海泻湖中暂养虾种群（Farfantepenaeus spp。）的生长和死亡率：环境的作用和密度依赖性

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摘要

The influence of environmental (temperature, salinity, aquatic vegetation) and density-dependent (abundance of recruits) factors on growth and mortality of four Farfantepenaeus species were evaluated during their period of estuarine residence, through a 2-year field study at Celestun lagoon, Mexico. Growth rates of the three most abundant species (F. brasiliensis, F. duorarum, F. notialis) were positively related with temperature and aquatic vegetation biomass, whereas some significant relationships between environmental factors and mortality rates were also demonstrated. Our results suggest that density-dependent processes regulate growth and mortality in these shrimp populations. Density-dependent mortality was also suggested by a strong compensatory relationship between recruits and juveniles. We conclude that population dynamics of Farfantepenaeus shrimps during their estuarine phase seem to be driven by the combined forces of density-dependent and environmental factors operating together.
机译：通过在Celestun泻湖进行的为期2年的实地研究，评估了环境（温度，盐度，水生植被）和密度依赖性（新兵的丰富度）因素对四种Farfantepenaeus物种在河口居住期间的生长和死亡率的影响，墨西哥。三种最丰富的物种（巴西巴西镰刀，巴西杜鹃，法国镰刀）的生长速率与温度和水生植物生物量呈正相关，而环境因子与死亡率之间也存在一些重要关系。我们的结果表明，依赖密度的过程调节了这些虾种群的生长和死亡率。新兵与少年之间的代偿关系也很强，表明了密度依赖性死亡率。我们得出结论，Farfantepenaeus虾在河口阶段的种群动态似乎是由密度依赖性和环境因素共同作用的共同作用力驱动的。

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