Fauna, Distribution, and Ecology of Mollusks of the Genus Unio (Mollusca: Bivalvia: Unionidae) in the Basin of the Dnieper River within the Territory of Ukraine

Yanovich, L. M.; Пампура, М. М.

doi:10.1615/hydrobj.v47.i4.30

Cited by 3 publications

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“…In fact, AfAnAsjev et al (1996) reported massive beds of large mussels at the Konin lakes (Poland) within the cooling system of two thermal power plants, where the invasive freshwater mussel Sinanodonta woodiana (Lea, 1834) The Unionidae are among the most threatened taxa in the world and there has been an overall decline in Europe, including Ukraine, both in terms of the number of populations and the density (yAnovich & PAMPurA 2011, loPes-liMA et al 2014). Freshwater mussels are beginning to be recognised for their exceptional roles in ecosystem functioning (reviewed in vAughn et al 2008) although the exact true nature of their importance in pristine sites with high densities is still incompletely understood.…”

Section: Discussionmentioning

confidence: 99%

A massive freshwater mussel bed (Bivalvia: Unionidae) in a small river in Ukraine

Протасов¹,

Sylaieva²,

Morozovska³

et al. 2015

Folia Malac.

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During a monitoring survey, a massive mussel bed was found and studied in the Gnily Rig River, Ukraine. The mussel bed was 25 cm thick and multilayered, with one of the greatest densities and biomass (wet weight) recorded so far in natural aggregations: up to 1,801.0 ± 175.4 ind./m² and up to 88.3 ± 20.7 kg/m², respectively. The site was surveyed periodically since 2009, and despite the temporal differences in the density (but not in biomass) the mussel bed was stable and should be considered for protection due to its high ecological and conservational value.

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Section: Discussionmentioning

confidence: 99%

A massive freshwater mussel bed (Bivalvia: Unionidae) in a small river in Ukraine

Протасов¹,

Sylaieva²,

Morozovska³

et al. 2015

Folia Malac.

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Peculiarities of Unio tumidus and Unio Pictorum (Unionidae) Adaptive Reactions to the Water Temperature Increase in the Microcosm

et al. 2023

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The paper deals with adaptive reactions of the freshwater bivalve mollusks of the family Unionidae under water temperature increase to the critical values in the model ecosystem - the microcosm. It was found that the water temperature increase resulted in changes of the metabolic processes, namely decrease of the total protein and glycogen content in gills of Unio tumidus and U. pictorum. Under critical temperatures (30±0.5°C), high activity of LDHase and decrease of K+/Na+-ATPase activity was registered, as well as increase of the filtration rate and oxygen consumption. Considerable need for oxygen was conditioned by oxidation of the energy substrates for instant production of energy for the adaptive processes. However, prolonged impact of increased temperature and thus high rate of metabolic processes in the mollusks can result in exhaustion of the energy resources available for key biological processes, such as growth and reproduction. These results confirmed that over the water temperatures rise owing to the global climate change, many populations of the freshwater bivalves can appear dangerously close to the upper limit of the thermal tolerance.

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The Role of Suffosion in the Formation of Engineering Geological Conditions in the Territory of Belarus

Krasovskaya,

Galkin,

Pavlovsky

et al. 2023

Geoèkologiâ

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The article presents the results of a comprehensive study of the conditions for the development and spread of natural and technogenic suffusion by the Belarus territory. It is noted that in insignificantly disturbed natural geoenvironment, the most favorable conditions for the development of suffusion have developed within the moraine and water-glacial plains and lowlands of the eastern part of the country, as well as marginal ice ridges and uplands with a cover of loess and loess-like formations with increased silt content, relatively low density of the soil skeleton, easy soakability and thixotropy, which contribute to the intensive development of the suffusion process. Active natural factors, conditions for the development and spread of suffusion, as well as forms of its manifestation in loess and loess-like soil massifs are considered. Suffusion manifestation in technogenically disturbed geoenvironment is analyzed, and its negative impact on functioning of natural-anthropogenic systems of various organization levels is shown by specific examples. In the authors’ opinion, the creation of a monitoring system for the development of suffusion, as well as other exogenous geological and engineering geological processes, will provide up-to-date information on the distribution and manifestation activity of these processes and the factors that determine them.

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Fauna, Distribution, and Ecology of Mollusks of the Genus Unio (Mollusca: Bivalvia: Unionidae) in the Basin of the Dnieper River within the Territory of Ukraine

Cited by 3 publications

References 0 publications

A massive freshwater mussel bed (Bivalvia: Unionidae) in a small river in Ukraine

A massive freshwater mussel bed (Bivalvia: Unionidae) in a small river in Ukraine

Peculiarities of Unio tumidus and Unio Pictorum (Unionidae) Adaptive Reactions to the Water Temperature Increase in the Microcosm

The Role of Suffosion in the Formation of Engineering Geological Conditions in the Territory of Belarus

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