Alien Fish Species of the Ukrainian Part of the Dniester River Basin: Distribution and Dynamics of Settlement

Afanasyev, S. A.; Gupalo, Olena; Lietytska, O. M.; Tymoshenko, N. V.; Roman, A. M.; Abramiuk, I. I.; Golub, O. O.

doi:10.1615/hydrobj.v58.i5.50

Cited by 3 publications

(3 citation statements)

References 22 publications

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“…There is thus the chance to reduce saline chronic inputs by properly managing land uses and promoting adequate water natural filtering, i.e., riparian forests, and water gathering and treatment, e.g., for the road salts case. Ecosystem-scale experiments, advances in water quality monitoring technology, and models are required to advance and better inform management frameworks for predicting salinization consequences and identifying possible restoration opportunities of freshwater ecosystems [126]. For the chronic input threats, we should add the acute events, like, for example, the well-known case when emergency releases of saline water from chemical plant lagoons led to a complete resetting of all living organisms in the Dniester River for 500 km and triggered the spread of invasive fish species [126].…”

Section: Salinizationmentioning

confidence: 99%

Multi-Interacting Natural and Anthropogenic Stressors on Freshwater Ecosystems: Their Current Status and Future Prospects for 21st Century

Bănăduc,

Curtean-Bănăduc,

Barinova

et al. 2024

Water

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The inheritance of historic human-induced disruption and the fierceness of its impact change aquatic ecosystems. This work reviews some of the main stressors on freshwater ecosystems, focusing on their effects, threats, risks, protection, conservation, and management elements. An overview is provided on the water protection linked to freshwater stressors: solar ultraviolet radiation, thermal pollution, nanoparticles, radioactive pollution, salinization, nutrients, sedimentation, drought, extreme floods, fragmentation, pesticides, war and terrorism, algal blooms, invasive aquatic plants, riparian vegetation, and invasive aquatic fish. Altogether, these stressors build an exceptionally composite background of stressors that are continuously changing freshwater ecosystems and diminishing or even destroying their capability to create and maintain ongoing natural healthy products and essential services to humans. Environmental and human civilization sustainability cannot exist without the proper management of freshwater ecosystems all over the planet; this specific management is impossible if the widespread studied stressors are not deeply understood structurally and functionally. Without considering each of these stressors and their synergisms, the Earth’s freshwater is doomed in terms of both quantitative and qualitative aspects.

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Section: Salinizationmentioning

confidence: 99%

Multi-Interacting Natural and Anthropogenic Stressors on Freshwater Ecosystems: Their Current Status and Future Prospects for 21st Century

Bănăduc,

Curtean-Bănăduc,

Barinova

et al. 2024

Water

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“…The species actively expanded into the left-and right-bank tributaries of the Dniester River within the Eastern plain ecoregion (BystrytsiaTysmenytska and its tributaries Tysmenytsia, Ripchanka, Trudnytsia, and Seret). Surveys of the upper and middle sections of the Dniester basin carried out in 2018-2020 revealed many new localities of RG [40,53].…”

Section: Discussionmentioning

confidence: 99%

Morphological and Trophic Features of the Invasive Babka gymnotrachelus (Gobiidae) in the Plain and Mountainous Ecosystems of the Dniester Basin: Spatiotemporal Expansion and Possible Threats to Native Fishes

Afanasyev,

Hupalo,

Tymoshenko

et al. 2023

Fishes

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Over the last few years, the racer goby B. gymnotrachelus quickly expanded in the mountainous rivers of the Dniester basin at aheight of 300 m a.s.l. and above. The occurrence frequency of the racer goby in fish communities in the mountainous rivers of the Carpathian ecoregion remains low (up to 20%), as compared with the plain rivers, where the species occurs in 70–100% of cases. The major prey groups in its diet in both plain and mountainous were Chironomidae, Diptera, and Crustacea. Chironomidae formed the maximal portion (35% at an occurrence frequency of 72.5%), and Trichoptera formed 18%at an occurrence frequency of 41%, whereas fish larvae were absent in their diet in mountainous rivers. The peculiar environmental conditions of mountainous rivers caused the adaptive modifications of the morphological features of the racer goby at the subpopulation level, which compriseda decrease inthe specimens’ size in rivers with a flow velocity of above 1.5 m/s and rivers with pebble contentsof above 50%in the bottom sediments.The modifications showed an increase inbody streamlining as an adaptation to flow velocity and turbulence and the stony substrate of the river’s bottom. Thus, the morphological adaptation of B. gymnotrachelus to the conditions of the mountainous rivers is in progress, and the formationof astable population in these rivers can be expected. In contrast, the native fish species’ resilience in the face of newcomers is still high, and this is because their alevins are not food for invaders.

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“…Our only actual record of the species occurred in August 2015, two years after ichthyomeliorative activities, mechanical cleaning of a small area and stocking with herbivorous fish were carried out, in the dead arm Charonda/Csaronda, which previously was thoroughly surveyed and Umbra krameri was not found [252,253]. Two specimens 42 and 64 mm long were found in the forgotten poachers' fishing pot (48 • 26 13.74 N, 22 • 15 59.24 E).…”

Section: Upper Tisza System In Ukraine and Hungarymentioning

confidence: 99%

Stepping Stone Wetlands, Last Sanctuaries for European Mudminnow: How Can the Human Impact, Climate Change, and Non-Native Species Drive a Fish to the Edge of Extinction?

et al. 2022

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Throughout their history humans “tamed” not only the Danube River basin land, but also the river and its associated wetlands, drastically influencing their characteristic habitats, associations, communities, and species. One of these flagship endemic fish species in this respect is the European mudminnow (Umbra krameri Walbaum, 1792), influenced by Danube Basin geography, history, politics, and ecology. A study about this European community concern species in the context of long term human impact on its specific habitats, with potential synergic negative effects of climate change, was treated as highly needed, in an international researchers group initiative to support the efforts to provide hope for preserving this fish species and its ecosystems, and brought it back from the brink of extinction. All the characteristic inventoried wetlands which were or some of them still are natural, semi-natural, or accidental anthropogenic habitats, reveal an accentuated diminishing trend of this species areal continuity; fragmentation being the force which skewed it drastically untill now, and inducing diminishing the specific habitats quantitative and qualitative characteristics in the Danube Basin where these fish fight for survival. The main categories of human activities which impacted the climate changes in the context of this species’ habitats are: water regulation, pollution, dredging, draining, and introduction of non-native species. Overall, the diverse human impact in a climate changes in the context of this species’ habitats, Umbra krameri wetlands, creates serious perspectives on negatively influencing this at a very high scale and level. All the inventoried wetlands where Umbra krameri still survive can be considered an ecologically managed as a refuge and stepping stone wetlands, especially in the increasing climate change trend situation. Supplementary inventory studies in the field should be done for the identification of some may be unknown Umbra krameri habitats and populations.

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Alien Fish Species of the Ukrainian Part of the Dniester River Basin: Distribution and Dynamics of Settlement

Cited by 3 publications

References 22 publications

Multi-Interacting Natural and Anthropogenic Stressors on Freshwater Ecosystems: Their Current Status and Future Prospects for 21st Century

Multi-Interacting Natural and Anthropogenic Stressors on Freshwater Ecosystems: Their Current Status and Future Prospects for 21st Century

Morphological and Trophic Features of the Invasive Babka gymnotrachelus (Gobiidae) in the Plain and Mountainous Ecosystems of the Dniester Basin: Spatiotemporal Expansion and Possible Threats to Native Fishes

Stepping Stone Wetlands, Last Sanctuaries for European Mudminnow: How Can the Human Impact, Climate Change, and Non-Native Species Drive a Fish to the Edge of Extinction?

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