Genetic analysis of populations of brown trout (<i>Salmo trutta</i>L.) from the Romanian Carpathians

Popa, Gina-Oana; Dudu, Andreea; Bănăduc, Doru; Curtean–Bănăduc, Angela; Burcea, Alexandru; Ureche, Dorel; Nechifor, Ramona; Georgescu, Sergiu Emil; Costache, Marieta

doi:10.1051/alr/2019021

Cited by 8 publications

(2 citation statements)

References 59 publications

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“…Regarding the potential effects of RG on the local ichthyofauna, we should stress that food competition with aboriginal species is a key element of its negative effect. Insect larvae and imago and crustaceans, on which RG feeds, in the mountainous sections of the rivers are also the main feeding objects ofrare species Salmo trutta Linnaeus, 1758; Hucho hucho (Linnaeus) 1758; and Thymallusthymallus (Linnaeus, 1758) [11,12], species which that experience significant negative human impact in the Carpathian basin [55][56][57][58][59][60];they exhibitdecreasing population frequency, abundance, and ecological status. Thus, even the partial overlapping of the feeding spectra along with the low biomass of food organisms can cause tension in the trophic relations of fish.…”

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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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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“…); land conversion; overharvesting and overexploitation; introduction of exotic species; release of pollutants into the water, land, and air; climate change, etc. [ 86 , 119 , 120 , 121 , 122 , 123 , 124 , 125 , 126 , 127 , 128 , 129 , 130 , 131 , 132 , 133 , 134 ]. These are still a largely unquantified threat [ 135 ].…”

Section: Human-induced Stressors’ Effects On Freshwater Ecosystem Cha...mentioning

confidence: 99%

Freshwater as a Sustainable Resource and Generator of Secondary Resources in the 21st Century: Stressors, Threats, Risks, Management and Protection Strategies, and Conservation Approaches

Bănăduc

Simić

Cianfaglione

et al. 2022

IJERPH

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This paper is a synthetic overview of some of the threats, risks, and integrated water management elements in freshwater ecosystems. The paper provides some discussion of human needs and water conservation issues related to freshwater systems: (1) introduction and background; (2) water basics and natural cycles; (3) freshwater roles in human cultures and civilizations; (4) water as a biosphere cornerstone; (5) climate as a hydrospheric ‘game changer’ from the perspective of freshwater; (6) human-induced stressors’ effects on freshwater ecosystem changes (pollution, habitat fragmentation, etc.); (7) freshwater ecosystems’ biological resources in the context of unsustainable exploitation/overexploitation; (8) invasive species, parasites, and diseases in freshwater systems; (9) freshwater ecosystems’ vegetation; (10) the relationship between human warfare and water. All of these issues and more create an extremely complex matrix of stressors that plays a driving role in changing freshwater ecosystems both qualitatively and quantitatively, as well as their capacity to offer sustainable products and services to human societies. Only internationally integrated policies, strategies, assessment, monitoring, management, protection, and conservation initiatives can diminish and hopefully stop the long-term deterioration of Earth’s freshwater resources and their associated secondary resources.

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Development of microsatellite markers and comprehensive assessment on genetic variation of the red swamp crayfish (Procambarus clarkii) in Hubei province, China

Zhang,

Liao,

Wang

et al. 2024

Aquacult Int

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Genetic analysis of populations of brown trout (Salmo truttaL.) from the Romanian Carpathians

Cited by 8 publications

References 59 publications

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

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

Freshwater as a Sustainable Resource and Generator of Secondary Resources in the 21st Century: Stressors, Threats, Risks, Management and Protection Strategies, and Conservation Approaches

Development of microsatellite markers and comprehensive assessment on genetic variation of the red swamp crayfish (Procambarus clarkii) in Hubei province, China

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