Multiple human activities in coastal benthic ecosystems: Introducing a metric of cumulative exposure

IF 4.7 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Elementa-Science of the Anthropocene Pub Date : 2023-01-01 DOI:10.1525/elementa.2023.00024

Elliot Dreujou, David Beauchesne, Rémi M. Daigle, Julie Carrière, Fanny Noisette, Christopher W. McKindsey, Philippe Archambault

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引用次数: 0

Abstract

Co-occurring anthropogenic activities influence coastal ecosystems around the world. Notions of ecological exposure are promising indicators to better understand environmental status and enhance ecosystem protection. This study characterized anthropogenic exposure in the context of multiple human activities on coastal benthic ecosystems at a scale of <100 km. Using a particle diffusion model and fishing event data, we developed an exposure index for seven human activities (aquaculture, artificial structures, dredging, fisheries, runoff, sewers and shipping) in a Canadian industrial harbour area. A generally low cumulative exposure was obtained, with the highest values observed directly in front of the city and industrial areas. Derived exposure indices explained a portion of the benthic community structure (R2 = 0.22), suggesting an ecological link between the exposure of species and their vulnerability to human activities. Such tools are relevant in data-poor environments where proxies are required to assess the state of an ecosystem, facilitating the application of ecosystem-based management.

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沿海底栖生态系统中的多重人类活动:引入累积暴露度量

同时发生的人为活动影响着世界各地的沿海生态系统。生态暴露的概念是更好地了解环境状况和加强生态系统保护的有希望的指标。本研究在100公里范围内对沿海底栖生态系统的多重人类活动进行了人为暴露研究。利用颗粒扩散模型和捕鱼事件数据，我们开发了加拿大工业港区七种人类活动(水产养殖、人工结构、疏浚、渔业、径流、下水道和航运)的暴露指数。获得的累积暴露量一般较低，在城市和工业区正前方观测到的暴露值最高。衍生的暴露指数解释了部分底栖生物群落结构(R2 = 0.22)，表明物种暴露与其对人类活动的脆弱性之间存在生态联系。这些工具适用于数据贫乏的环境，在这些环境中需要代理来评估生态系统的状态，从而促进基于生态系统的管理的应用。

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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来源期刊

Elementa-Science of the Anthropocene Earth and Planetary Sciences-Atmospheric Science

CiteScore

6.90

自引率

5.10%

发文量

审稿时长

16 weeks

期刊介绍： A new open-access scientific journal, Elementa: Science of the Anthropocene publishes original research reporting on new knowledge of the Earth’s physical, chemical, and biological systems; interactions between human and natural systems; and steps that can be taken to mitigate and adapt to global change. Elementa reports on fundamental advancements in research organized initially into six knowledge domains, embracing the concept that basic knowledge can foster sustainable solutions for society. Elementa is published on an open-access, public-good basis—available freely and immediately to the world.