rotifer Brachionus plicatilis 对消除有害藻类 Phaeocystis globosa 的上下作用取决于盐度

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Yunfei Sun¹, Xiaoru Qian¹, Hang Wu¹

¹Jiangsu Key Laboratory for Biodiversity and Biotechnology, School of Biological Sciences, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210023, China.

Marine pollution bulletin

|January 18, 2024

概括

在各种盐度下,罗提弗能有效地去除有害的藻类 (Phaeocystis). 较低的盐度增强了虫的繁殖,有助于有害的藻类繁殖控制策略.

科学领域:

海洋生态海洋生态学
水生生物学水生生物学
有害藻类繁殖 (HAB) 管理管理

背景情况:

有害藻类繁殖 (HABs) 构成重大的生态和经济威胁.
动物浮游生物放牧提供了一种可持续的生物控制方法,用于HABs.
了解度等环境因素的影响对于优化基于动物浮游生物的控制至关重要.

研究的目的:

为了评估树在有害藻类菌 (Phaeocystis) 上的自上而下的放牧效率.
为了确定不同盐度水平对虫除菌的影响.
为了评估盐度对 rotifer 种群动态和生命史特征的影响.

主要方法:

进行了实验室实验,研究了 Phaeocystis-rotifer 种群动态在一系列盐度.
在不同的盐度水平上进行了罗蒂费尔生命史实验.
监测囊虫清除时间和虫繁殖参数.

主要成果:

罗提弗在盐度≤20‰时获得了最短的囊菌清除时间.
在所有测试盐度下,尽管在较高盐度 (>25‰) 处长期清除,但Faeocystis种群的完全消除发生了.
较低的盐度 (≤20‰) 促进了较早的肉成熟和繁殖,而较高的盐度则延迟了繁殖和减少了后代数量.

结论:

罗提弗是Phaeocystis的有效放牧者,其效率受到盐度的影响.
盐度显著影响鱼的生命历史特征,影响它们作为生物控制剂的潜力.
在实施动物浮游生物来缓解有害藻类繁殖时,必须考虑盐度等环境因素.

关键词:

有害的藻类有害的藻类生命史的特征生命史的特征囊虫病 (法eocystisis) 是一种囊虫病.人口动态人口动态罗蒂费尔 (Rotifer) 是一种有机植物.盐分盐分盐分盐分盐分

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