Pub Date : 2023-01-01DOI: 10.1615/hydrobj.v59.i6.40
B. S. Hulak
Data on the sex and size-mass composition of the Baltic shrimp Palaemon adspersus Rathke, 1837, population were obtained basing on the analysis of samples from 35 fyke net catches in the north-western section of the Black Sea over 2017-2020. The Baltic shrimp in the catches was represented by the specimens 20-65 mm long, and the main portion (52%) was formed by the specimens 40-50 mm long. According to LBB model, over 2017-2020 the relative fishing mortality level increased from 0.7 to 1.2. At the same time, in 2020 relation of the actual biomass to the biomass ensuring the maximum sustainable yield (B/Bmsy) was equal to 1.0, indicating the optimal intensity of the Baltic shrimp harvesting in the Ukrainian waters. According to the model calculations, the minimal allowed length for harvesting should be 35 mm. Analysis of the fyke nets catches revealed significant number of undersized specimens of the commercial and protected fishes in the bycatch, including juveniles of gobies, turbot and flounder. Actual harvesting intensity do not result in P. adspersus overfishing in Ukrainian waters. In order to mitigate the negative impact of shrimp harvesting on the non-target species, it is necessary to regulate it by limitation of the fishing gears number and optimization of their designs. It was revealed that the fyke nets number in the Ukrainian waters should be limited to about 800 units.
{"title":"Actual State of Population and Harvesting of the Baltic Shrimp Palaemon adspersus (Decapoda, Palaemonidae) in the North-Western Section of the Black Sea","authors":"B. S. Hulak","doi":"10.1615/hydrobj.v59.i6.40","DOIUrl":"https://doi.org/10.1615/hydrobj.v59.i6.40","url":null,"abstract":"Data on the sex and size-mass composition of the Baltic shrimp <i>Palaemon adspersus</i> Rathke, 1837, population were obtained basing on the analysis of samples from 35 fyke net catches in the north-western section of the Black Sea over 2017-2020. The Baltic shrimp in the catches was represented by the specimens 20-65 mm long, and the main portion (52&#37;) was formed by the specimens 40-50 mm long. According to LBB model, over 2017-2020 the relative fishing mortality level increased from 0.7 to 1.2. At the same time, in 2020 relation of the actual biomass to the biomass ensuring the maximum sustainable yield <i>(B/B</i><sub>msy</sub>) was equal to 1.0, indicating the optimal intensity of the Baltic shrimp harvesting in the Ukrainian waters. According to the model calculations, the minimal allowed length for harvesting should be 35 mm. Analysis of the fyke nets catches revealed significant number of undersized specimens of the commercial and protected fishes in the bycatch, including juveniles of gobies, turbot and flounder. Actual harvesting intensity do not result in <i>P. adspersus</i> overfishing in Ukrainian waters. In order to mitigate the negative impact of shrimp harvesting on the non-target species, it is necessary to regulate it by limitation of the fishing gears number and optimization of their designs. It was revealed that the fyke nets number in the Ukrainian waters should be limited to about 800 units.","PeriodicalId":39692,"journal":{"name":"Hydrobiological Journal","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135800409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/hydrobj.v59.i1.50
N. Rudyk-Leuska, O. Potrokhov, G. Kotovska, D. Khrystenko
Modern dynamics of the main abiotic environmental factors responsible for fish fauna effective reproduction in the Kremenchuk Reservoir are discussed in the paper. Annual dynamics of water level and temperature were analyzed. It has been found that the main factor responsible for the rate of breeding stock maturation in the Kremenchuk Reservoir is water temperature dynamics rather than spawning temperatures. It is underlined that the operation of hydroelectric facilities and the spawning campaign must be synchronized to ensure sustainable fisheries. The drainage of spawning grounds in low-water years results in the decrease in their area and, as a consequence, in the formation of low-yielding generations. It is recommended to optimize the annual dynamics of water level according to the needs of fisheries.
{"title":"Water Level and Temperature as the Main Factors Responsible for the Formation of Conditions for Aboriginal Fish Fauna Effective Reproduction in the Kremenchuk Reservoir","authors":"N. Rudyk-Leuska, O. Potrokhov, G. Kotovska, D. Khrystenko","doi":"10.1615/hydrobj.v59.i1.50","DOIUrl":"https://doi.org/10.1615/hydrobj.v59.i1.50","url":null,"abstract":"Modern dynamics of the main abiotic environmental factors responsible for fish fauna effective reproduction in the Kremenchuk Reservoir are discussed in the paper. Annual dynamics of water level and temperature were analyzed. It has been found that the main factor responsible for the rate of breeding stock maturation in the Kremenchuk Reservoir is water temperature dynamics rather than spawning temperatures. It is underlined that the operation of hydroelectric facilities and the spawning campaign must be synchronized to ensure sustainable fisheries. The drainage of spawning grounds in low-water years results in the decrease in their area and, as a consequence, in the formation of low-yielding generations. It is recommended to optimize the annual dynamics of water level according to the needs of fisheries.","PeriodicalId":39692,"journal":{"name":"Hydrobiological Journal","volume":"237 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67522619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/hydrobj.v59.i1.60
Ye. V. Starosyla
The paper deals with structural and functional indicators of bacterioplankton and bacteriobenthos of Opechen Nizhny Lake before (2016-2018) and after (2019-2021) its hydrotechnical reconstruction and improvement of the surrounding areas are presented. The analysis of seasonal dynamics of bacterioplankton, bacteriobenthos, eutrophic and oligotrophic bacteria, bacteria with a damaged cytoplasmic membrane (dead cells) and bacteria with active electron transport chain (alive cells) number in water and bottom sediments, intensity of destruction and bacterial decomposition of organic matter in water was analyzed. Significant development of sanitary-indicative microorganisms in the lake water was revealed. The comparative analysis of the quantitative development and functioning of the bacterial population of the lake over two investigated periods was carried out. The results obtained can be used to reveal the mechanisms of formation and functioning of pollution-resistant microbial communities in anthropogenically polluted and reconstructed water bodies, as well as their role in the self-purification processes.
{"title":"Structural and Functional Changes in Bacterial Population of the Lake as a Response to Hydrotechnical Construction (by Example of Opechen Nyzhne Lake, Kyiv, Ukraine)","authors":"Ye. V. Starosyla","doi":"10.1615/hydrobj.v59.i1.60","DOIUrl":"https://doi.org/10.1615/hydrobj.v59.i1.60","url":null,"abstract":"The paper deals with structural and functional indicators of bacterioplankton and bacteriobenthos of Opechen Nizhny Lake before (2016-2018) and after (2019-2021) its hydrotechnical reconstruction and improvement of the surrounding areas are presented. The analysis of seasonal dynamics of bacterioplankton, bacteriobenthos, eutrophic and oligotrophic bacteria, bacteria with a damaged cytoplasmic membrane (dead cells) and bacteria with active electron transport chain (alive cells) number in water and bottom sediments, intensity of destruction and bacterial decomposition of organic matter in water was analyzed. Significant development of sanitary-indicative microorganisms in the lake water was revealed. The comparative analysis of the quantitative development and functioning of the bacterial population of the lake over two investigated periods was carried out. The results obtained can be used to reveal the mechanisms of formation and functioning of pollution-resistant microbial communities in anthropogenically polluted and reconstructed water bodies, as well as their role in the self-purification processes.","PeriodicalId":39692,"journal":{"name":"Hydrobiological Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67522714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/hydrobj.v59.i1.70
L. O. Gorbatiuk, O. Pasichna, M. Platonov, S. P. Burmistrenko, I. Nezbrytska, T. V. Vitovetska
As a result of the performed investigations, it has been found that at the concentration of oil products, including petrol and diesel fuel, of 5.0 and 10.0 mg/L the content of photosynthetic pigments (chlorophylls a and b and carotenoids), and also (chlorophyll a/chlorophyll b) and (chlorophyll a + chlorophyll b)/carotenoids ratios significantly decreased, which is indicative of inhibiting the vital activity of macrophytes. It has been shown that the pigment system of C. demersum proved to be rather resistant to the influence of the concentrations of petrol and diesel fuel of 0.5 and 1.0 mg/L. This fact suggests that this species of higher aquatic plants can be used for phytoremediation of the aquatic environment moderately contaminated by oil products.
{"title":"Peculiarities of the Influence of Oil Products on the Content and Ratio of Photosynthetic Pigments of Ceratophyllum demersum L.","authors":"L. O. Gorbatiuk, O. Pasichna, M. Platonov, S. P. Burmistrenko, I. Nezbrytska, T. V. Vitovetska","doi":"10.1615/hydrobj.v59.i1.70","DOIUrl":"https://doi.org/10.1615/hydrobj.v59.i1.70","url":null,"abstract":"As a result of the performed investigations, it has been found that at the concentration of oil products, including petrol and diesel fuel, of 5.0 and 10.0 mg/L the content of photosynthetic pigments (chlorophylls a and b and carotenoids), and also (chlorophyll a/chlorophyll b) and (chlorophyll a + chlorophyll b)/carotenoids ratios significantly decreased, which is indicative of inhibiting the vital activity of macrophytes. It has been shown that the pigment system of C. demersum proved to be rather resistant to the influence of the concentrations of petrol and diesel fuel of 0.5 and 1.0 mg/L. This fact suggests that this species of higher aquatic plants can be used for phytoremediation of the aquatic environment moderately contaminated by oil products.","PeriodicalId":39692,"journal":{"name":"Hydrobiological Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67522721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/hydrobj.v59.i2.70
O. Kaglyan, D. Gudkov, V. V. Belyaev, S. Kireev, L. Yurchuk, V. Drozdov, N. Pomortseva, S. Pryshliak, O. Gupalo, I. Abramiuk, M. O. Men’kovska
Changes in the absorbed dose rate of external and internal exposure of the representatives of fish fauna of the cooling pond of the Chornobyl NPS and Lake Azbuchyn after the interruption of water supply into the cooling pond at the end of 2014 were investigated in 2014-2021. Changes in hydrological regime resulted in the decrease in water level in the cooling pond by 6.5-7.0 m, whereas in Lake Azbuchyn - by 2.5-3.0 m. In this case, 90Sr concentration activity in the water and biota increased. It has been found that in 2021 dose load from the incorporated 90Sr on fish of the cooling pond increased on the average by a factor of 4.5, whereas in Lake Azbuchyn - by a factor of 7.5 as compared to previous period (prior to a decrease in water level). The external dose rate for fish of the cooling pond remained almost unchanged, whereas in Lake Azbuchyn it increased as a result of replacing littoral and sub-littoral zones of the lake with the sections of the bottom characterized by an essentially higher level of radio-nuclide contamination.
{"title":"Changes in Radiation Exposure Rate of Fish of the Cooling Pond of the Chornobyl NPS and Lake Azbuchyn after Water Level Lowering","authors":"O. Kaglyan, D. Gudkov, V. V. Belyaev, S. Kireev, L. Yurchuk, V. Drozdov, N. Pomortseva, S. Pryshliak, O. Gupalo, I. Abramiuk, M. O. Men’kovska","doi":"10.1615/hydrobj.v59.i2.70","DOIUrl":"https://doi.org/10.1615/hydrobj.v59.i2.70","url":null,"abstract":"Changes in the absorbed dose rate of external and internal exposure of the representatives of fish fauna of the cooling pond of the Chornobyl NPS and Lake Azbuchyn after the interruption of water supply into the cooling pond at the end of 2014 were investigated in 2014-2021. Changes in hydrological regime resulted in the decrease in water level in the cooling pond by 6.5-7.0 m, whereas in Lake Azbuchyn - by 2.5-3.0 m. In this case, 90Sr concentration activity in the water and biota increased. It has been found that in 2021 dose load from the incorporated 90Sr on fish of the cooling pond increased on the average by a factor of 4.5, whereas in Lake Azbuchyn - by a factor of 7.5 as compared to previous period (prior to a decrease in water level). The external dose rate for fish of the cooling pond remained almost unchanged, whereas in Lake Azbuchyn it increased as a result of replacing littoral and sub-littoral zones of the lake with the sections of the bottom characterized by an essentially higher level of radio-nuclide contamination.","PeriodicalId":39692,"journal":{"name":"Hydrobiological Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67522817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/hydrobj.v59.i5.40
P. Tkachenko
The article briefly describes the main changes of the meteorological processes in the considered region over the last 10 years as compared with the long-term meteorological data since 1950s. Adaptations of the biological cycles of different fish species in the Tendra and Yahorlyk bays and adjacent waters of the Black Sea under the influence of climate changes over the last 10-30 years are considered. It was established that the most notable changes took place owing to changes of the thermal regime and wind activity. The appearance of new fish species in these water areas under the influence of weather conditions and increase of the rare species occurrence are discussed.
{"title":"Adaptation of Biological Cycles of Fishes in the Tendra, Yahorlyk Bays and Adjacent Waters of the Black Sea to Environmental Changes Related to Recent Climate Changes","authors":"P. Tkachenko","doi":"10.1615/hydrobj.v59.i5.40","DOIUrl":"https://doi.org/10.1615/hydrobj.v59.i5.40","url":null,"abstract":"The article briefly describes the main changes of the meteorological processes in the considered region over the last 10 years as compared with the long-term meteorological data since 1950s. Adaptations of the biological cycles of different fish species in the Tendra and Yahorlyk bays and adjacent waters of the Black Sea under the influence of climate changes over the last 10-30 years are considered. It was established that the most notable changes took place owing to changes of the thermal regime and wind activity. The appearance of new fish species in these water areas under the influence of weather conditions and increase of the rare species occurrence are discussed.","PeriodicalId":39692,"journal":{"name":"Hydrobiological Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67523158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/hydrobj.v59.i5.50
O. Pasichna, L. O. Gorbatiuk, M. Platonov, S. P. Burmistrenko, O. Godlevska
The possibility to use the submerged aquatic plants (macrophytes) Cera-tophyllum demersum L., Myriophyllum spicatum L. and Potamogeton perfoliatus L. for biomonitoring of heavy metal pollution of the water bodies in urbanized areas was considered. The degree of the metals' (Mn, Pb, Ni, Cd) accumulation by the considered plants was determined and correlation with their concentration in water of the lakes of Kyiv (Ukraine) was established. The coefficients of the metals' biological accumulation by the submerged macrophytes were calculated. It was established that maximal amount of heavy metals was accumulated by the aquatic macrophytes in the lakes Minske, Luhove, Bohatyrske, Kyrylivske and Yordanske (Opechen lake system). The minimal content of heavy metals was in the aquatic macrophytes in the lakes Redchyne, Verbne, Synie, Tyagle and Telbin. The use of C. demersum, M. spicatum and P. perfoliatus for phytoremediation and restoration of ecological state of the water bodies contaminated by heavy metals is recommended.
{"title":"Biomonitoring of Heavy Metals Pollution in Lakes of Kyiv (Ukraine) Using Submerged Macrophytes and Assessment of Their Phytoremediative Potential","authors":"O. Pasichna, L. O. Gorbatiuk, M. Platonov, S. P. Burmistrenko, O. Godlevska","doi":"10.1615/hydrobj.v59.i5.50","DOIUrl":"https://doi.org/10.1615/hydrobj.v59.i5.50","url":null,"abstract":"The possibility to use the submerged aquatic plants (macrophytes) Cera-tophyllum demersum L., Myriophyllum spicatum L. and Potamogeton perfoliatus L. for biomonitoring of heavy metal pollution of the water bodies in urbanized areas was considered. The degree of the metals' (Mn, Pb, Ni, Cd) accumulation by the considered plants was determined and correlation with their concentration in water of the lakes of Kyiv (Ukraine) was established. The coefficients of the metals' biological accumulation by the submerged macrophytes were calculated. It was established that maximal amount of heavy metals was accumulated by the aquatic macrophytes in the lakes Minske, Luhove, Bohatyrske, Kyrylivske and Yordanske (Opechen lake system). The minimal content of heavy metals was in the aquatic macrophytes in the lakes Redchyne, Verbne, Synie, Tyagle and Telbin. The use of C. demersum, M. spicatum and P. perfoliatus for phytoremediation and restoration of ecological state of the water bodies contaminated by heavy metals is recommended.","PeriodicalId":39692,"journal":{"name":"Hydrobiological Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67523193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/hydrobj.v59.i5.60
O. P. Olkhovych, N. Taran, V. Belava, O. Panyuta
The paper deals with comparative assessment of the biochemical composition of biomass of Ankistrodesmus braunii (Nageli) Lemmerm. and Scenedesmus rubescens P.J.L. Dang cultivated in closed photobioreactor. Complete edible biomass was obtained of both algal species with high content of protein, photosynthetic pigments, sulpholipid and acylcarnitines. In A. braunii biomass content of proteins was 8.0 times higher than in S. rubescens, content of essential amino acids 1.3 times, chlorophylls 2.9 times, carotenoids 2.0 times, sulfolipid 4.7 times, and acylcarnitines 2.0 times.
{"title":"Assessment of the Nutritional Value of the Green Algae Biomass Cultivated in Phytobioreactor","authors":"O. P. Olkhovych, N. Taran, V. Belava, O. Panyuta","doi":"10.1615/hydrobj.v59.i5.60","DOIUrl":"https://doi.org/10.1615/hydrobj.v59.i5.60","url":null,"abstract":"The paper deals with comparative assessment of the biochemical composition of biomass of Ankistrodesmus braunii (Nageli) Lemmerm. and Scenedesmus rubescens P.J.L. Dang cultivated in closed photobioreactor. Complete edible biomass was obtained of both algal species with high content of protein, photosynthetic pigments, sulpholipid and acylcarnitines. In A. braunii biomass content of proteins was 8.0 times higher than in S. rubescens, content of essential amino acids 1.3 times, chlorophylls 2.9 times, carotenoids 2.0 times, sulfolipid 4.7 times, and acylcarnitines 2.0 times.","PeriodicalId":39692,"journal":{"name":"Hydrobiological Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67523202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/hydrobj.v59.i6.60
O. M. Usenko, I. M. Konovets
The composition and content of phenol carboxylic acids was studied in water bodies among higher aquatic plants of various ecological groups: emergent (Typha angustifolia L., Scirpus lacustris L., and Phragmites australis (Cav.) Trin. ex Steud.), submerged (Ceratophyllum demersum L. and Myriophyllum spicatum L.), and with floating leaves (Trapa natans L. and Nuphar lutea L.). The following acids were found in the water among higher aquatic plants: benzoic, lilac, vanillic, gallic, n-oxybenzoic, protocatechuic, α-resorcylic, β-resorcylic, salicylic, ferulic, caffeic, cinnamic, coumaric, and sinapic. Their total concentration in the water among the specimens of T. angustifolia accounted for 114.7 μg/L, Sc. lacustris - 24.71 μg/L, T. natans - 56.14 μg/L, N. lutea -19.3 μg/L, C. demersum -25.42-38.66 μg/L, and M. spicatum - 1.42-2.83 μg/L. The analysis of the content of phenol carboxylic acids in the water among the specimens of Ph. australis during the spring-autumn period revealed significant differences both in the ratio of individual acids and in their distribution by groups. The maximal concentration of benzoic and salicylic acids in the water was registered at the beginning of Ph. australis development, whereas the maximal content of vanillic and gallic acids - during plant active vegetation. The lowest content of cinnamic and ferulic acids was recorded at the beginning of vegetation season. Cluster analysis of the content of phenol carboxylic acids in the water among the specimens of C. demersum and M. spicatum at two sampling stations (Sobache Gyrlo Bay and Verblyud Bay in the Kaniv Reservoir) made it possible to reveal two groups of the studied substances. The first group included benzoic and gallic acids and the second group - other acids. The use of the principal component analysis (PCA) made it possible to establish a significant correlation between the composition and content of phenol carboxylic acids in the water among higher aquatic plants and dominant plant species. This fact is indicative of the leading role of higher aquatic plants in the formation of the pool of these substances in the water.
{"title":"Content of Phenol Carboxylic Acids in the Water among Higher Aquatic Plants of Various Ecological Groups","authors":"O. M. Usenko, I. M. Konovets","doi":"10.1615/hydrobj.v59.i6.60","DOIUrl":"https://doi.org/10.1615/hydrobj.v59.i6.60","url":null,"abstract":"The composition and content of phenol carboxylic acids was studied in water bodies among higher aquatic plants of various ecological groups: emergent (<i>Typha angustifolia</i> L., <i>Scirpus lacustris</i> L., and <i>Phragmites australis</i> (Cav.) Trin. ex Steud.), submerged (<i>Ceratophyllum demersum</i> L. and <i>Myriophyllum spicatum</i> L.), and with floating leaves (<i>Trapa natans</i> L. and <i>Nuphar lutea</i> L.). The following acids were found in the water among higher aquatic plants: benzoic, lilac, vanillic, gallic, <i>n</i>-oxybenzoic, protocatechuic, &alpha;-resorcylic, &beta;-resorcylic, salicylic, ferulic, caffeic, cinnamic, coumaric, and sinapic. Their total concentration in the water among the specimens of <i>T. angustifolia</i> accounted for 114.7 &mu;g/L, <i>Sc. lacustris</i> - 24.71 &mu;g/L, <i>T. natans</i> - 56.14 &mu;g/L, <i>N. lutea</i> -19.3 &mu;g/L, <i>C. demersum</i> -25.42-38.66 &mu;g/L, and <i>M. spicatum</i> - 1.42-2.83 &mu;g/L. The analysis of the content of phenol carboxylic acids in the water among the specimens of <i>Ph. australis</i> during the spring-autumn period revealed significant differences both in the ratio of individual acids and in their distribution by groups. The maximal concentration of benzoic and salicylic acids in the water was registered at the beginning of <i>Ph. australis</i> development, whereas the maximal content of vanillic and gallic acids - during plant active vegetation. The lowest content of cinnamic and ferulic acids was recorded at the beginning of vegetation season. Cluster analysis of the content of phenol carboxylic acids in the water among the specimens of <i>C. demersum</i> and <i>M. spicatum</i> at two sampling stations (Sobache Gyrlo Bay and Verblyud Bay in the Kaniv Reservoir) made it possible to reveal two groups of the studied substances. The first group included benzoic and gallic acids and the second group - other acids. The use of the principal component analysis (PCA) made it possible to establish a significant correlation between the composition and content of phenol carboxylic acids in the water among higher aquatic plants and dominant plant species. This fact is indicative of the leading role of higher aquatic plants in the formation of the pool of these substances in the water.","PeriodicalId":39692,"journal":{"name":"Hydrobiological Journal","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135800410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/hydrobj.v59.i1.30
G. M. Shikhaleyeva, A. Ennan, P. Tsarenko, G. Kiryushkina
Results of analysis of original data obtained in 2001-2018 on the ecology and biogeographic distribution of 40 species (45 infraspecific taxa) of Chlorophyta of the orders Cladophorales (8), Ulotrichales (4), Ulvales (6), Chlo-rellales (1), Chlamydomonadales (6), and Sphaeropleales (20) and 7 species of Charophyta of the orders Zygnematales (2), Desmidiales (4), and Charales (1) of the hyperhaline Kuyalnyk estuary, its main tributaries and various water bodies located within the two-kilometer water protection zone are given in the paper. The ecological characteristics (relationship to pH, water salinity, organic matter content, and ecotopic confinement) and the environmental conditions of habitats (temperature, water salinity, pH, and the content of inorganic compounds of nitrogen and phosphorus) are given in the paper. In the hyperhaline Kuyalnyk estuary, the concentration of nutrients (nitrogen and phosphorus) was high during all water periods. The increase in water salinity up to 200-320‰ resulted in the decrease in species diversity, changes in the structure of algal communities, and also in a predominance of species ofthe genus Dunaliella Teod. (Chlorophyta).
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