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首页> 外文期刊>Gulf and Caribbean research >FLEXIBLE FEEDING STRATEGIES OF JUVENILE GRAY TRIGGERFISH (BALISTES CAPRISCUS) AND PLANEHEAD FILEFISH (STEPHANOLEPIS HISPIDUS) WITHIN SARGASSUM HABITAT
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FLEXIBLE FEEDING STRATEGIES OF JUVENILE GRAY TRIGGERFISH (BALISTES CAPRISCUS) AND PLANEHEAD FILEFISH (STEPHANOLEPIS HISPIDUS) WITHIN SARGASSUM HABITAT

机译：鼠尾草栖息地内幼稚灰色三角虎鱼（盲目猴）和扁头鲈鱼（费城线虫）的灵活饲养策略

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摘要

Sargassum-associated juvenile gray triggerfish and planehead filefish exhibited flexible feeding strategies in terms of their use of epifauna or pelagic zooplankton. Four diet samples represented instances of co-occurrence and segregated occurrence. Co-occurring gray triggerfish had the most specialized diets consisting mainly of pelagic copepods and hyperiid amphipods. Conversely,segregated triggerfish as well as both co-occurring and segregated filefish had broader diets mainly consisting of Sargassum epifauna, such as bryozoans, portunid crabs, and hippolytid shrimp. Still, co-occurring planehead filefish also consumed somewhat more zooplankton than segregated planehead filefish. Ontogenetic diet transitions were not as distinct for gray triggerfish as for planehead filefish. Our study demonstrates that juvenile tetradonts can be flexible in their use of benthic versus pelagic feeding strategies. Consequently, the influence of these key consumers on Sargassum food webs may vary spatiotemporally.
机译：与Sargassum相关的幼年灰色触发鱼和and鱼在使用表生动物或浮游浮游动物方面表现出灵活的喂养策略。四个饮食样本代表同时发生和分开发生的情况。共生的灰色引金鱼具有最专业的饮食，主要由上层co足类和双节肢类两足动物组成。相反，分离的引诱鱼以及同时存在和分离的斑鱼的饮食范围较广，主要由Sargassum epifauna组成，例如，苔藓虫，Portunid蟹和髋类虾。尽管如此，共生的平头目鱼也比分离的平头目鱼消耗了更多的浮游动物。灰色触发鱼的个体遗传饮食转变不如平头file鱼明显。我们的研究表明，幼小四齿类动物在使用底栖和中上层觅食策略时可以很灵活。因此，这些主要消费者对马尾藻食物网的影响可能会随时间变化。

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