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Feeding biology of a habitat-forming antipatharian in the Azores Archipelago
Coral Reefs ( IF 2.7 ) Pub Date : 2020-08-07 , DOI: 10.1007/s00338-020-01980-0
M. Rakka , C. Orejas , S. R. Maier , D. Van Oevelen , A. Godinho , M. Bilan , M. Carreiro-Silva

Benthic suspension feeders have developed a variety of feeding strategies and food availability has often proven to be a key factor explaining their occurrence and distribution. The feeding biology of coral species has been the target of an increasing number of studies, however most of them focus on Scleractinia and Octocorallia, while information for Antipatharia is very scarce. The present study focused on Antipathella wollastoni, a common habitat-forming antipatharian in the Azores Archipelago, forming dense black coral forests between 20 and 150 m. The objective of the study was to investigate the food preferences of the target species upon availability of different isotopically enriched food substrates and determine its ability to capture zooplankton prey under different flow speeds. The species was able to utilize different food sources including live phytoplankton, live zooplankton and dissolved organic matter (DOM), indicating the ability to exploit seasonally available food sources. However, ingestion of zooplankton enhanced carbon (C) and nitrogen (N) incorporation in coral tissue and metabolic activity, highlighting the importance of zooplankton prey for vital physiological processes such as growth and reproduction. Maximum zooplankton capture rates occurred under 4 cm−1, however the species displayed high capacity to capture zooplankton prey over different flow rates highlighting the ability of A. wollastoni to exploit high quantities of shortly available prey.

中文翻译:

亚速尔群岛栖息地形成的反叛者的饲养生物学

底栖悬浮饲养者已经开发了多种饲养策略,食物供应通常被证明是解释它们发生和分布的关键因素。珊瑚物种的摄食生物学已成为越来越多研究的目标,但大多数研究都集中在石珊瑚属和八珊瑚属上,而关于 Antipatharia 的信息非常稀少。本研究的重点是 Antipathella wollastoni,这是亚速尔群岛常见的形成栖息地的反病原体,在 20 到 150 m 之间形成茂密的黑珊瑚森林。该研究的目的是调查目标物种对不同同位素富集食物底物的可用性的食物偏好,并确定其在不同流速下捕获浮游动物猎物的能力。该物种能够利用不同的食物来源,包括活浮游植物、活浮游动物和溶解有机物 (DOM),表明能够利用季节性可用的食物来源。然而,浮游动物的摄入增强了珊瑚组织中碳 (C) 和氮 (N) 的结合和代谢活动,突出了浮游动物猎物对生长和繁殖等重要生理过程的重要性。最大浮游动物捕获率发生在 4 cm-1 以下,但是该物种在不同流速下显示出捕获浮游动物猎物的高能力,突出了 A. wollastoni 开发大量短期可用猎物的能力。浮游动物的摄入增强了珊瑚组织中碳 (C) 和氮 (N) 的结合和代谢活动,突出了浮游动物猎物对生长和繁殖等重要生理过程的重要性。最大浮游动物捕获率发生在 4 cm-1 以下,但是该物种在不同流速下显示出捕获浮游动物猎物的高能力,突出了 A. wollastoni 开发大量短期可用猎物的能力。浮游动物的摄入增强了珊瑚组织中碳 (C) 和氮 (N) 的结合和代谢活动,突出了浮游动物猎物对生长和繁殖等重要生理过程的重要性。最大浮游动物捕获率发生在 4 cm-1 以下,但是该物种在不同流速下显示出捕获浮游动物猎物的高能力,突出了 A. wollastoni 开发大量短期可用猎物的能力。
更新日期:2020-08-07
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