Zooplankton community changes in a restoring estuary

IF 2.6 3区地球科学 Q1 MARINE & FRESHWATER BIOLOGY

Estuarine Coastal and Shelf Science Pub Date : 2025-07-22 DOI:10.1016/j.ecss.2025.109450

Anaëlle Bernard , Frédéric Azémar , Tom Maris , Patrick Meire , Luz Amadei Martínez , Céleste Mouth , Elisa Bou , Michèle Tackx

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引用次数: 0

Abstract

This study discribes crustacean (copepods and cladocerans) and rotifer abundance, diversity and community composition in the Scheldt estuary, during 1996–2022. Besides the ongoing envionmental change, increased wastewater treatment, followed by the alteration of the main Scheldt channel, have characterized this period. A combination of clustering, correlative and decision tree analysis was used to investigate relationships between zooplankton and the major environmental parameter changes. Since 1996, both crustacean and rotifer communities showed a clear chlorinity-induced separation between the brackish (LSS) and the freshwater (USS) estuary. The effects of water de-eutrophication are visible in both crustacean and rotifer communities, particularly in the freshwater reach. Recently, marks of marinization and intensification of dredging activities, partly linked to changes in phytoplankton are detected on the zooplankton.

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恢复河口浮游动物群落的变化

研究了1996-2022年斯凯尔特河口甲壳类（桡足类和枝海类）和轮虫的丰度、多样性和群落组成。除了持续的环境变化外，污水处理量的增加以及随后的主要斯海尔德水道的改变是这一时期的特征。采用聚类分析、相关分析和决策树分析相结合的方法研究了浮游动物与主要环境参数变化的关系。自1996年以来，甲壳类和轮虫群落在咸淡水（LSS）和淡水（USS）河口之间表现出明显的氯诱导分离。水体去富营养化的影响在甲壳类和轮虫群落中都很明显，特别是在淡水河段。最近，在浮游动物上发现了部分与浮游植物变化有关的海水化和疏浚活动加剧的迹象。

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

Estuarine Coastal and Shelf Science 地学-海洋学

CiteScore

5.60

自引率

7.10%

发文量

374

审稿时长

9 months

期刊介绍： Estuarine, Coastal and Shelf Science is an international multidisciplinary journal devoted to the analysis of saline water phenomena ranging from the outer edge of the continental shelf to the upper limits of the tidal zone. The journal provides a unique forum, unifying the multidisciplinary approaches to the study of the oceanography of estuaries, coastal zones, and continental shelf seas. It features original research papers, review papers and short communications treating such disciplines as zoology, botany, geology, sedimentology, physical oceanography.