A Modelling Approach for the Management of Invasive Species at a High-Altitude Artificial Lake

Q3 Environmental Science
Dimitrios K. Moutopoulos, Alexandra S. Douligeri, Athina Ziou, Nikolaos Kiriazis, Athanasios Korakis, Nikolaos Petsis, George N. Katselis
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引用次数: 0

Abstract

The ecosystem structure of a Mediterranean high-altitude artificial lake (Aoos Springs, Northwest Greece) was assessed and quantified using the Ecopath with Ecosim model. The artificial lake was created in 1990 for hydroelectric production and the fish fauna has been enriched across years due to deliberate or accidental fish stockings, as well as the introduction of the invasive pumpkinseed (Lepomis gibbosus), which may cause adverse effects on aquatic ecosystems and their biota. The model considered 20 species/taxa groups with biological data gathered during 2021–2022 from field surveys, interviews with recreational anglers and literature. The results revealed that the artificial lake of Aoos is a resilient ecosystem to unexpected events with low intensity of fisheries exploitation. The biomass of the introduced invasive species Lepomis gibbosus is low, due to the low biomass level of its diet, Chironomidae and zoobenthic organisms as well as other fish species.
高海拔人工湖入侵物种管理建模方法
使用 Ecosim 模型 Ecopath 对地中海高海拔人工湖(希腊西北部的 Aoos 泉)的生态系统结构进行了评估和量化。该人工湖创建于 1990 年,用于水电生产,多年来,由于有意或无意的鱼类放养,以及外来入侵的南瓜籽(Lepomis gibbosus)的引入,鱼类种群不断丰富,这可能会对水生生态系统及其生物群造成不利影响。该模型考虑了 2021-2022 年期间从实地调查、休闲垂钓者访谈和文献中收集的 20 个物种/类群的生物数据。结果表明,Aoos 人工湖是一个对突发事件有较强适应力的生态系统,渔业开发强度较低。外来入侵物种 Lepomis gibbosus 的生物量较低,这是因为其食物、摇蚊科和底栖生物以及其他鱼类的生物量较低。
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来源期刊
Limnological Review
Limnological Review Environmental Science-Ecology
CiteScore
1.60
自引率
0.00%
发文量
0
审稿时长
16 weeks
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