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首页> 外文期刊>Scientific reports. >Annual rhythms of temporal niche partitioning in the Sparidae family are correlated to different environmental variables
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Annual rhythms of temporal niche partitioning in the Sparidae family are correlated to different environmental variables

机译：Sparidae家族的时间生态位分区的年度节奏与不同的环境变量相关

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The seasonal timing of recurring biological processes is essential for organisms living in temperate regions. While ample knowledge of these processes exists for terrestrial environments, seasonal timing in the marine environment is relatively understudied. Here, we characterized the annual rhythm of habitat use in six fish species belonging to the Sparidae family, highlighting the main environmental variables that correlate to such rhythms. The study was conducted at a coastal artificial reef through a cabled observatory system, which allowed gathering underwater time-lapse images every 30?minutes consecutively over 3 years. Rhythms of fish counts had a significant annual periodicity in four out of the six studied species. Species-specific temporal patterns were found, demonstrating a clear annual temporal niche partitioning within the studied family. Temperature was the most important environmental variable correlated with fish counts in the proximity of the artificial reef, while daily photoperiod and salinity were not important. In a scenario of human-induced rapid environmental change, tracking phenological shifts may provide key indications about the effects of climate change at both species and ecosystem level. Our study reinforces the efficacy of underwater cabled video-observatories as a reliable tool for long-term monitoring of phenological events.
机译：周期性生物过程的季节性时机对于生活在温带地区的生物至关重要。尽管在陆地环境中对这些过程有足够的了解，但是相对较少地研究了海洋环境中的季节时机。在这里，我们描述了属于Sparidae家族的6种鱼类的栖息地使用的年度节奏，强调了与此类节奏相关的主要环境变量。该研究是通过一个有线天文台系统在一个沿海人工鱼礁上进行的，该系统可以连续3年每30分钟收集一次水下延时图像。在六个研究物种中的四个中，鱼类计数的节奏具有显着的年度周期性。发现了特定于物种的时间模式，这表明在所研究的家庭中存在清晰的年度时间生态位分区。温度是与人工礁附近鱼类数量相关的最重要的环境变量，而每日的光周期和盐度并不重要。在人为因素引起的快速环境变化的情况下，跟踪物候变化可能提供有关气候变化在物种和生态系统水平上的影响的关键指示。我们的研究加强了水下有线视频观测站作为长期监测物候事件的可靠工具的功效。

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