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首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Macropredators as shapers of invaded fouling communities in a cold temperate port
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Macropredators as shapers of invaded fouling communities in a cold temperate port

机译：麦克润者作为冷水港侵犯污垢社区的造型器

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摘要

Ports are vulnerable to biological invasions because of the high shipping exchange and the abundance and diversity of artificial structures. These artificial environments provide new habitats for fouling communities, commonly hosting a large number of exotic species. The colonization of artificial structures is influenced by large and small scale processes, such as differences in recruitment time (that may vary with season and availability of new substrates) or predation. In cold temperate regions, with a marked seasonality, not only the starting time of colonization may influence fouling community structure but also the community of macropredators associated. This study addressed the following question: What is the effect of macropredators on invaded fouling communities started at different time in a cold temperate port? To asses this, the following experimental treatments were assigned to three plates attached to a fiberglass structure: exclusion, open cage and open plate. At the beginning of each season, seven of these structures were tied to port pilings, each one containing the three experimental treatments. We found that fouling communities are shaped by macropredators, such as sea urchins, gastropods and crabs, and that their effect on community structure depends on the time or season in which the colonization started. Exotic ascidians were absent in open plates and open cages when macropredators were present, and species diversity was highest when these predators were excluded. Our results suggest that predation at high latitudes in cold temperate regions might be more important than what is predicted in recent works. Although our study is conclusive on specific points, it also exposes a need for further research disentangling the processes regulating the colonization of artificial fixed versus floating structures at different latitudes.
机译：由于高运输交流和人工结构的丰富和多样性，港口易受生物侵犯的侵害。这些人工环境为污垢社区提供新的栖息地，通常举办大量异国情调。人工结构的定植受大型和小规模过程的影响，例如招聘时间的差异（可能因新基板的季节和可用性而变化）或捕食。在寒冷地区，具有明显的季节性，不仅殖民的开始时间可能影响污垢群落结构，而且可能影响宏观群体的群体。这项研究解决了以下问题：宏指令在寒气港口的不同时间开始侵犯污垢社区对宏指令的效果是什么？为了使其吻合，将以下实验处理分配到附着在玻璃纤维结构的三块板上：排除，开放式笼和开板。在每个季节的开始时，这些结构中的七个与端口桩捆绑在一起，每个结构都包含三种实验处理。我们发现，污垢社区由宏观食品塑造，例如海胆，美食和螃蟹，它们对社区结构的影响取决于殖民化开始的时间或季节。当存在宏观剂时，开放板和开放笼中没有异国情调的亚洲人，当这些捕食者被排除时，物种多样性最高。我们的研究结果表明，冷温带地区高纬度地区的捕食可能比最近作品中预测的更重要。虽然我们的研究是对特定点的确凿，但它还需要进一步研究解除在不同纬度地区调节人造固定的浮动结构的过程的进一步研究。

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  • 来源
    《Journal of Experimental Marine Biology and Ecology》 |2019年第9期|151177.1-151177.7|共7页
  • 作者

    Belen Giachetti Clara; Battin Nicolas; Bortolus Alejandro; Tatian Marcos; Schwindt Evangeline;

  • 作者单位

    GEAC Buenos Aires DF Argentina|Consejo Nacl Invest Cient & Tecn IBIOMAR Inst Biol Organismos Marinos Blvd Brown RA-2915 Puerto Madryn Chubut Argentina|Univ Buenos Aires Fac Ciencias Exactas & Nat Buenos Aires DF Argentina;

    GEAC Buenos Aires DF Argentina|Consejo Nacl Invest Cient & Tecn IBIOMAR Inst Biol Organismos Marinos Blvd Brown RA-2915 Puerto Madryn Chubut Argentina|Univ Buenos Aires Fac Ciencias Exactas & Nat Buenos Aires DF Argentina;

    GEAC Buenos Aires DF Argentina|Consejo Nacl Invest Cient & Tecn IPEEC Inst Patagen Estudio Ecosistemas Continentales Blvd Brown RA-2915 Puerto Madryn Chubut Argentina;

    Univ Nacl Cordoba CONICET UNC Inst Diversidad & Ecol Anim Ave Velez Sarsfield 299 Cordoba Argentina|Univ Nacl Cordoba Fac Ciencias Exactas Fis & Nat Ave Velez Sarsfield 299 Cordoba Argentina;

    GEAC Buenos Aires DF Argentina|Consejo Nacl Invest Cient & Tecn IBIOMAR Inst Biol Organismos Marinos Blvd Brown RA-2915 Puerto Madryn Chubut Argentina;

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  • 正文语种 eng
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  • 关键词

    Southwestern Atlantic; Exotic ascidians; Artificial structures; Predation;

    机译：西南大西洋;异国情调的阿立迪亚人;人工结构;捕食;

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