湖泊-湿地复合体对瓦勒耶渔业恢复能力的重要性

IF 1.8 4区 环境科学与生态学 Q3 ECOLOGY Wetlands Pub Date : 2024-06-05 DOI:10.1007/s13157-024-01815-6
Logan M. Cutler, Steve R. Chipps, Brian G. Blackwell, Alison A. Coulter
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引用次数: 0

摘要

湿地是可支持高度生物多样性的独特栖息地。湿地栖息地的大规模丧失会威胁到湖泊与湿地栖息地之间的重要联系,从而影响水生生物的多样性和生长。在这项研究中,我们比较了一个大型冰川湖(南达科他州坎佩斯卡湖)和一个相连湿地中的猎物多样性和丰度以及瓦勒耶鱼(Sander vitreus)的饮食和状况,以更好地了解每个栖息地所提供的益处的季节性变化。我们使用单位努力量猎物鱼类捕获量、丰富度、香农多样性、布雷-柯蒂斯相似度以及马口铁相对重量、空胃百分比、食物重量、胃饱满度、食物能量和食物分类群重要性,研究了栖息地之间两年(2021 年夏季至 2022 年秋季)的季节性差异(春季、夏季和秋季)。湿地中的猎物鱼类群落更多样、更丰富,除春季外的所有季节,马口鱼在湿地中都摄食了更多的猎物(按重量计算)。湿地重新连接可以成为管理者改善水质的工具,同时为鱼类提供所需的季节性栖息地。此外,湿地提供了多种多样的猎物资源,其中许多都是独一无二的,这有助于面对生态变化时的恢复能力。保护湿地可能是在未来维持健康和有弹性的渔业的关键。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Importance of a Lake-Wetland Complex for a Resilient Walleye Fishery

Wetlands serve as unique habitats that can support high biodiversity. Large-scale loss of wetland habitats can threaten important linkages between lake and wetland habitats that could affect diversity and growth of aquatic organisms. In this study, we compare prey diversity and abundance as well as Walleye (Sander vitreus) diets and condition in a large glacial lake (Lake Kampeska, South Dakota) with a connected wetland to better understand seasonal changes in the benefits provided by each habitat. We examined seasonal differences (spring, summer, and fall) through two years (summer 2021 through fall 2022) between the habitats using prey fish catch per unit effort, richness, Shannon diversity, and Bray–Curtis dissimilarity as well as Walleye relative weight, percent of empty stomachs, diet weight, stomach fullness, diet energy, and diet taxa importance. The prey fish community was more diverse and abundant in the wetland, and Walleye consumed more prey (by weight) in the wetland during all seasons except spring. Wetland reconnection can be a tool for managers to improve water quality while providing seasonal habitat needs for fish. Additionally, the diversity of prey resources provided by wetlands, many of which are unique, support resilience in the face of ecological change. Protection of wetlands may be critical for maintaining healthy and resilient fisheries into the future.

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来源期刊
Wetlands
Wetlands 环境科学-环境科学
CiteScore
4.00
自引率
10.00%
发文量
108
审稿时长
4.0 months
期刊介绍: Wetlands is an international journal concerned with all aspects of wetlands biology, ecology, hydrology, water chemistry, soil and sediment characteristics, management, and laws and regulations. The journal is published 6 times per year, with the goal of centralizing the publication of pioneering wetlands work that has otherwise been spread among a myriad of journals. Since wetlands research usually requires an interdisciplinary approach, the journal in not limited to specific disciplines but seeks manuscripts reporting research results from all relevant disciplines. Manuscripts focusing on management topics and regulatory considerations relevant to wetlands are also suitable. Submissions may be in the form of articles or short notes. Timely review articles will also be considered, but the subject and content should be discussed with the Editor-in-Chief (NDSU.wetlands.editor@ndsu.edu) prior to submission. All papers published in Wetlands are reviewed by two qualified peers, an Associate Editor, and the Editor-in-Chief prior to acceptance and publication. All papers must present new information, must be factual and original, and must not have been published elsewhere.
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