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藻对短期酸化和变暖的反应受到牧场和营养素的影响

Jerwin G Baure¹, Michael Y Roleda¹, Marie Antonette Juinio-Meñez¹

¹Marine Science Institute, College of Science, University of the Philippines Diliman (UP-MSI), Quezon City 1101, Philippines; Bolinao Marine Laboratory, UP-MSI, Luciente I, Bolinao, Pangasinan 2406, Philippines.

Marine pollution bulletin

|September 20, 2024

概括

无脊椎动物放牧者在海洋酸化和变暖下对微藻生物质产生了重大影响. 草垃圾还刺激了微藻再生,影响了海洋条件变化的生态系统动态.

科学领域:

海洋生态海洋生态学
海洋学海洋学海洋学
地生态学地生态学

背景情况:

周围藻和盆地藻是热带海洋生态系统中至关重要的初级生产者.
海洋酸化 (OA) 和变暖 (OW) 对海洋生物和生态系统功能构成重大威胁.
无脊椎动物放牧者在调节微藻群体方面发挥着关键作用.

研究的目的:

为了研究两个无脊椎动物放牧动物 (Stichopus cf. 和Trochus maculatus) 在周围植物和盆地藻生物质上.
评估海洋酸化 (OA) 和变暖 (OW) 对这些相互作用的综合影响.
了解在未来海洋条件下微藻再生中,草来源的营养素在微藻再生中的作用.

主要方法:

模拟了8天的环境,OA,OW和FUTURE条件组合.
量化总周边生物质 (无灰的干重) 和自营生物质 (叶绿素-a).
在没有和存在放牧者的情况下比较生物量.

主要成果:

斯蒂科普斯显著减少了生物量,除了在OW下.
在OA和OW条件下,Trochus减少了生物质.
草地废物刺激了微藻再生,影响因草地和营养水平而异.

结论:

在模拟的未来海洋条件下,无脊椎动物的放牧显著改变了微藻生物质.
从牧场废物中再生营养是影响微藻恢复的关键因素.
这些发现突出了气候变化所面临的热带海洋系统中生物和非生物因素之间的复杂相互作用.

关键词:

岩层中的岩层 (Benthic diatoms) 是一种岩层.无脊椎动物的放牧动物.营养素营养素营养素海洋酸化是指海洋的酸化.海洋变暖海洋变暖

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