在过渡性河流系统中的十足甲类动物:来自巴西里贝拉德伊瓜佩生态区的见解,巴西
Esthephany Konesuk Santos Miranda1, Maria Rosa Roque Santana Gomes1, Luis Carlos Ferreira de Almeida1
1FCAVR-School of Agricultural Sciences of Vale do Ribeira "Registro Campus", "UNESP" State University of São Paulo, Av. Nelson Brihi Badur, 430, Vila Tupy, Registro 11900-000, SP, Brazil.
Biology
|September 27, 2025
概括
巴西的十足甲类甲动物
科学领域:
- 生态生态学 生态生态学
- 动物学 动物学
- 保护生物学 保护生物学
背景情况:
- 淡水生态系统对生物多样性至关重要,但受到人类活动的威胁.
- 十足类甲动物是水生生态系统健康的重要指标.
- 里贝拉德伊瓜佩河是全球重要的淡水生态区域,面临着生态压力.
研究的目的:
- 评估十足甲动物物种的丰富性,多样性和分布在Ribeira de Iguape河的下游.
- 探索十足动物群落与环境参数之间的关系.
- 了解这些关键的淡水无脊椎动物的空间和时间动态.
主要方法:
- 在三个不同的河流地点,在一年内每月取样.
- 使用主动和被动捕获方法来收集十条.
- 应用多变量分析 (对应性分析,PERMANOVA,多重回归) 对环境和物种数据.
主要成果:
- 在8个Caridea和4个Brachyura物种中记录了42897个个体.
- 卡里迪亚人占主导地位,其中包括*Potimirim* spp. 和 *Macrobrachium acanthurus * 是最丰富的.
- 在河口附近观察到的最高物种丰富和多样性,受到盐度和溶解氧气的影响.
结论:
- 盐度和溶解氧气等环境因素显著影响了十足的分布.
- 季节性变化会影响甲类的丰富性,特别是在冬季和春季.
- 侵入性植物 *Macrobrachium rosenbergii* 的存在凸显了在过渡淡水区持续监测的必要性.
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