The Impact of Water Environment Changes on Freshwater Fish Species

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Biodiversity and Functionality of Aquatic Ecosystems".

Deadline for manuscript submissions: closed (18 August 2023) | Viewed by 1933

Special Issue Editors


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Guest Editor
Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research, 46.7 km Athens-Sounio Ave., 19013 Anavyssos, Attica, Greece
Interests: fish behavior; fish biology and ecology; biodiversity conservation; phenotypic plasticity

E-Mail Website
Guest Editor
Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research, 46.7 km Athens-Sounio Ave., 19013 Anavyssos, Attica, Greece
Interests: freshwater ecosystems; freshwater fish; invasions and non-native species; freshwater habitat restoration

Special Issue Information

Dear Colleagues,

We live in a rapidly changing world, and anthropogenic impacts on ecosystems are expected to intensify in the future, especially under conditions of increasing globalization and under current climate change scenarios. Freshwater ecosystems, which host an extraordinary variety of fish species among numerous other organisms, are particularly susceptible to the impacts of environmental change. Changes in the water environment, whether natural or human-induced, such as fluctuations of abiotic factors (temperature, salinity, turbidity, etc.), pollution and eutrophication, or water stress and biological invasions, can have significant acute and/or long-term effects on many aspects of the life of fish fauna (development and life history, growth and survival, behavior, morphology and physiology) and at different levels of organization (at species, population, and/or community/assemblage level). The theoretical and practical implications of these impacts are numerous and of great importance, both from a scientific scope and from a societal and economic scope.

In this Special Issue, we invite contributions from all relevant research fields, investigating how changes in the freshwater environment influence fish species around the world. These include laboratory studies, focusing on the effects of specific biotic and/or abiotic factors, but also field studies looking at environmental change impacts at a larger scale. Brief communications, reviews, regular research articles, and meta-analyses will all be considered for publication.

Dr. Ioannis Leris
Dr. Eleni Kalogianni
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Water is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • freshwater ecosystem
  • fish assemblage
  • anthropogenic pressures
  • habitat degradation
  • biodiversity conservation
  • fish communities
  • climate change
  • temperature
  • turbidity
  • salinity

Published Papers (1 paper)

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Review

20 pages, 1930 KiB  
Review
Re-Establishing Naturally Reproducing Sturgeon Populations in the Caspian Basin: A Wicked Problem in the Ural River
by Steven G. Pueppke, Sabir T. Nurtazin, Turesh K. Murzashev, Islam S. Galymzhanov, Norman A. Graham and Talgarbay Konysbayev
Water 2023, 15(19), 3399; https://doi.org/10.3390/w15193399 - 28 Sep 2023
Viewed by 1675
Abstract
Although Eurasia’s Caspian basin once supported the world’s richest and most diverse complex of sturgeon species, recent human activities have decimated populations of these ecologically and economically important fish. All five anadromous Caspian sturgeon species are critically endangered, and the potamodromous sterlet is [...] Read more.
Although Eurasia’s Caspian basin once supported the world’s richest and most diverse complex of sturgeon species, recent human activities have decimated populations of these ecologically and economically important fish. All five anadromous Caspian sturgeon species are critically endangered, and the potamodromous sterlet is also threatened. The precipitous decline of these species is due to a combination of factors that includes illegal, unreported, and unregulated (IUU) fishing; destruction of feeding and spawning habitat; water pollution; and the environmental consequences of climate change. International efforts are currently underway to re-establish sustained naturally reproducing sturgeon populations in the basin. Here, we update and review the status of sturgeon in the Caspian Sea with emphasis on the northern basin and the inflowing Volga and Ural rivers. We then focus on efforts to restore sturgeon in the Ural, which originates in Russia and flows through Kazakhstan before entering the Caspian Sea. With nearly ideal hydrological conditions for sturgeon, the Ural is the basin’s sole remaining river that allows migrating sturgeon unimpeded access to potentially productive spawning grounds. The challenge of re-establishing sturgeon in the Ural River exhibits the classical characteristics of wicked problems: ambiguous definitions, changing assumptions and unanticipated consequences, tradeoffs and economic dependencies, an incomplete and contradictory knowledge base, and no straightforward pathway toward a final solution. This challenge is examined here for the first time from the perspective of its wicked dynamics, with consideration given to approaches that have proven effective elsewhere in resolving wicked environmental problems. Full article
(This article belongs to the Special Issue The Impact of Water Environment Changes on Freshwater Fish Species)
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