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首页> 外文期刊>Aquatic Living Resources >Juvenile fish assemblages in the creeks of the Gambia Estuary
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Juvenile fish assemblages in the creeks of the Gambia Estuary

机译：冈比亚河口小河中的幼鱼组合

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摘要

A tyke net survey of the juvenile and small fish assemblage of the Gambia estuary was conducted on three sampling occasions during the maximum recruitment season, from May to November 2002. This is the first detailed description of that particular component of the fish community in the Gambia estuary. The overall fyke net fish assemblage comprised 51 species, with a majority of young individuals of large and medium size species and the adults of small species. This assemblage is defined as the "small fish component of the mangrove channels". The assemblage is dominated by true estuarine and certain marine species, all able to complete their life cycle within the estuary. The sea spawning species whose juveniles use the estuary mainly as a nursery ground, are not very diverse or abundant during the recruitment season. They are limited to the lowest part of the estuary due to the low salinity prevailing in the middle and upper reaches during the rainy season. This suggests that extreme seasonal variability (river flooding) in certain West African tropical estuaries at the time of maximum recruitment by certain marine species may reduce the nursery around value for these taxa.
机译：在2002年5月至2002年11月的最大招募季节期间，在三个抽样场合对冈比亚河口的幼鱼和小型鱼群进行了一次轮胎网调查。这是对冈比亚鱼群这一特定组成部分的首次详细描述。河口。整个鱼网净鱼群包括51种，大多数为大中型物种的年青个体，以及小物种的成年个体。这种组合被定义为“红树林通道的小鱼组成部分”。这种组合主要由真正的河口和某些海洋物种组成，它们都能够在河口内完成其生命周期。其幼体主要将河口用作育苗场的海产卵物种在募集季节不是非常多样化或丰富。由于雨季中上游地区盐分低，它们被限制在河口的最低部分。这表明在某些海洋物种最大程度地招募时，某些西非热带河口的极端季节性变化（河流洪水）可能会降低苗圃的价值。

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