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首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Age and life style affect macroalgae colonization by amphipods in shallow marine environments
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Age and life style affect macroalgae colonization by amphipods in shallow marine environments

机译：年龄和生活方式在浅海洋环境中的Amphipods影响大型殖民殖民化

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摘要

Dispersal and colonization processes are complex and affected by several factors in the marine realm. Understanding how and where individuals go can be challenging, particularly for marine invertebrates that do not have a sessile phase. We selected the amphipod-macroalga system to investigate if life stage and life style can influence colonization patterns from algal patches placed at different distances and having variable amounts of available substrate for colonization. Amphipods are key organisms connecting the benthonic and pelagic environments through food chains and our results bring important contributions for conservation and management of these systems in shallow marine areas. We ran field and laboratory experiments to compare the colonization of Sargassum fronds between adult and juvenile amphipods, as well as tube-dwelling and free-living species. We found three times more juveniles than adults colonizing the experimental patches, and both tube-dwelling and free-living juveniles occupied experimental patches across all distances in the field. In the laboratory, we observed the tube-dwelling Cymadusa filosa remaining in more proximal patches than the free-living Hyale niger. Juveniles occupied similarly small and large algal surface area patches both in the field and in the laboratory, while adults occupied primarily large algal surface area patches in the field. We did not observe differences regarding life style in the colonization of small or large algal surface area patches by juveniles in the field or in the laboratory. Our findings support the idea that juvenile amphipods may have higher dispersal potential by colonizing more distant areas and/or patches with variable amounts of available substrate when compared to adults. Amphipods life style may influence colonization distance during initial dispersal movements of juveniles due to the fact that tube-dweller juveniles stay closer to the site where they were released.
机译：分散和结肠化方法是复杂的并且受海洋领域的几个因素影响。了解个人如何以及何处可能具有挑战性，特别是对于没有术语阶段的海洋无脊椎动物。我们选择了Amphipod-Macroalga系统来研究寿命和寿命风格是否可以影响从放置在不同距离处的藻类贴片和具有用于定殖的可变量的可变量的藻类贴片的殖民化模式。 Amphipods是通过食物链将底坑和骨质环境连接的关键生物，我们的结果为浅海地区的保护和管理带来了重要贡献。我们ran现场和实验室实验，比较成人和少年两栖叶片和少年两栖，以及管居和自由生活的殖民化。我们发现比成年人更多的青少年，而不是殖民实验斑块，以及管居住和自由生活少年占据了该领域所有距离的实验斑块。在实验室中，我们观察到剩余的管居住的Cymadusa Filosa比自由生活的休闲尼日尔更近似。少年占据了现场和实验室中的同样小而大的藻类表面斑块，而成年人主要占据该领域的大型藻类面积贴片。我们没有观察到在现场中的少年或实验室中的少年或大型藻类表面区域斑块的殖民化的生活方式的差异。我们的研究结果支持了少年倍数两者可以通过在与成虫相比时通过定植更远的区域和/或具有可变量的可用衬底的更远的区域和/或斑块具有更高的分散势。由于管 - 居民少年保持靠近它们被释放的地方，Amphipods寿命风格可能会影响少年初始分散运动期间的殖民化距离。

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