一个小的,人为干扰的,热带河口的热带功能
Kiranya Bella1, Pramila Sahadevan1, Rajeev Raghavan1
1Department of Fisheries Resource Management, Kerala University of Fisheries and Ocean Studies (KUFOS), Kochi, India.
Marine environmental research
|October 11, 2023
概括
普恩图拉河口是一个不健康的,由于污染造成的不成熟生态系统. 热带模型显示生态结构和功能受损,突出了管理和恢复工作的必要性.
科学领域:
- 生态系统建模 生态系统建模
- 河口生态学 河口生态学
- 环境科学环境科学
背景情况:
- 印度西南海岸的一个小河口 - - 普恩图拉河口,面临着巨大的人为影响.
- 了解生态系统的健康和功能对于其保护至关重要.
研究的目的:
- 为普恩图拉河口建造一个奖杯模型.
- 通过生态网络分析和生态系统健康指数来评估生态系统的健康和功能.
- 确定关键的生态群体,并将河口的热带特征与全球其他河口进行比较.
主要方法:
- 使用Ecosim (EwE) 软件的Ecopath用于基于2016-2020年数据的热带建模.
- 用生态网络分析 (ENA) 和生态系统健康指数来评估系统结构和功能.
- 计算了关键的生态参数,如总系统吞吐量,上升率,芬兰的自行车指数和生态效应.
主要成果:
- 河口的总系统吞吐量低,上升率低,芬兰的循环指数高,初级生产/生物质低,平均转移效率高,生态效应低.
- 这些指标表明生态系统不成熟,不组织,不健康.
- 初级生产/呼吸比为0.46,表明有机污染很大,小地食肉动物被确定为基石群.
结论:
- 普恩图拉河口的生态结构和功能受到人类造成的压力因素的严重影响.
- 河口的食物功能和食物网结构不同于具有相似物理特征的其他河口.
- 这项研究为Poonthura河口和全球类似的小,受影响的河口的管理,监测和恢复提供了科学基础.
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