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首页> 外文期刊>Estuarine Coastal and Shelf Science >Population dynamics and growth in three scyphozoan jellyfishes, and their relationship with environmental conditions in a coastal lagoon
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Population dynamics and growth in three scyphozoan jellyfishes, and their relationship with environmental conditions in a coastal lagoon

机译：三种鞘型水母的人口动态和增长，以及沿海泻湖环境条件的关系

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摘要

Blooms of jellyfishes are perceived to have increased during the last decades causing interference with human activities of both recreational and professional type. Those blooms seem to hold correlation with human impacts and environmental changes such as overfishing, the increase of temperature, eutrophication or habitat modification. In this study we perform the first simultaneous analysis of population dynamics from three scyphozoan jellyfishes, Aurelia sp. (Linnaeus, 1758), Cotylorhiza tuberculata (Macri, 1778) and Rhizostoma pulmo (Macri, 1778). The effect of temperature, salinity, ichthyoplankton, nutrients and chlorophyll a concentration have been studied. These three species are present in the Mar Menor coastal lagoon where they show a spatial and temporal segregation of their populations and life cycles that allows them to reduce interspecific competition. Temperature and its seasonal cycle have been determined to be a key factor regulating the populations, triggering the stmbilation process either by an increase in temperature (C. tuberculata) or by a decrease in it (Aurelia sp.). Such segregation has a decisive effect on the ecosystem, since it allows a continuous temporal succession of top-down control on the lagoon trophic network.
机译：在过去几十年中，绽放的盛开绽放导致干扰娱乐和专业类型的人类活动。那些盛开似乎将与人类影响和环境变化保持相关性，例如过度捕捞，温度的增加，富营养化或栖息地改性。在这项研究中，我们从三种鞘塞氏菌，Aurelia sp中的群体动态进行了第一次同时分析。 （Linnaeus，1758），CoTylorhiza Tuberculata（Macri，1778）和根茎摩擦（Macri，1778）。已经研究了温度，盐度，ICHThyoplankton，营养素和叶绿素浓度的影响。这三种物种存在于Mar Menor沿海泻湖中，在那里他们展示了他们的人口和人口的空间和时间隔离，使他们能够减少三种竞争。已经确定温度及其季节性循环是调节群体的关键因素，通过增加温度（C.Tuberculata）或其减少（Aurelia sp）来触发stmbilation过程。这种分离对生态系统具有决定性的影响，因为它允许在泻湖营养网络上的全面的控制下连续时间连续。

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