{"title":"CURRENT STATE OF PLANKTON COMMUNITIES OF THE LOWER VYCHEGDA RIVER AND ITS TRIBUTARIES","authors":"E. Medvedeva, N. Otchenash, I. Makedonskaya","doi":"10.47021/0320-3557-2022-46-54","DOIUrl":"https://doi.org/10.47021/0320-3557-2022-46-54","url":null,"abstract":"The work is a part of the comprehensive studies of the rivers and lakes of the south-east of the Arkhangelsk region, carried out in 2021 for the purpose of development of aquaculture of inland water bodies. The data on the species diversity and structure of plankton communities of freshwater bodies belonging to the Vychegda River watershed were obtained. Taxonomic composition of phytoplankton in summer period of 2021 was shown. Species diversity was estimated using Shannon index based on relative abundance of species, Menchinic index to determine species abundance, and Jaccard's similarity coefficient. Pantle-Bucca saprobicity index was calculated to assess pollution of natural waters. Evaluation of watercourses trophicity based on the obtained indicators of phytoplankton and zooplankton was carried out. We have identified 192 taxa of microalgae from 8 divisions and 15 species of zooplankton from three systematic groups. Green and diatom algae were found to be the basis of the algoflora. The zooplankton community was cladoceric-copepodic. New data on the state of the phytoplankton community can serve as an informational and methodological basis for the development of ecological monitoring programs for the aquatic ecosystems of the region. The results of the research can be used to assess the fish productivity of the Arkhangelsk region water bodies and to calculate the damage to aquatic bioresources from economic activities.","PeriodicalId":198921,"journal":{"name":"Transactions of Papanin Institute for Biology of Inland Waters RAS","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130653487","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}
A. Sokolova, V. Mikryakov, D. Mikryakov, S. Kuz'micheva
{"title":"INFLUENCE OF THE INVASIVE SPECIES OF UNIONICOLA YPSILOPHORA (BONZ, 1783) ON THE MORPHO AND IMMUNOPHYSIOLOGICAL INDICATORS OF THE MOLLUSK ANODONTA CYGNEA (L.) OF THE RYBIN RESERVOIR","authors":"A. Sokolova, V. Mikryakov, D. Mikryakov, S. Kuz'micheva","doi":"10.47021/0320-3557-2022-58-64","DOIUrl":"https://doi.org/10.47021/0320-3557-2022-58-64","url":null,"abstract":"The effect of the invasive biological species of the Rybinsk Reservoir, the water mite Unionicola ypsilophora (Bonz, 1783) on the morphological and immunophysiological parameters of the infected bivalve mollusks Anodonta cygnea (L., 1758), was studied. The dependence of mollusk infection by water mite on the age, size, fatness coefficient, somatic indices of gills, legs, the content of immune complexes and malondialdehyde, one of the final products of lipid peroxidation, is shown. Indicators of size, total weight, content of immune complexes and malondialdehyde in infected individuals aged 7–10 years significantly exceeded those of uninfected young children 4-5 years old. It is concluded that with age, the level of innate mechanisms of the anti-acaricidal immunity of A. cygnea to water mite decreases, which leads to mass infection and death of older age groups of mollusks. The obtained data can be used to predict the propagation rate of biological invasion of U. ypsilophora in water bodies.","PeriodicalId":198921,"journal":{"name":"Transactions of Papanin Institute for Biology of Inland Waters RAS","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121475797","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}
{"title":"PHENOTYPIC DIVERSITY OF BACTERIA OF THE PSEUDOMONAS COMPLEX, ISOLATED FROM PARASALMO MYKISS Walb., ACCORDING TO THE FACTORS OF INVASIVENESS","authors":"A. Savushkin, N. Sidorova","doi":"10.47021/0320-3557-2022-50-57","DOIUrl":"https://doi.org/10.47021/0320-3557-2022-50-57","url":null,"abstract":"The article presents the results of studies of the phenotypic properties of bacteria of the pseudomonas complex group isolated from the microflora of 57 individuals of rainbow trout Parasalmo mykiss Walbaum, 1792, aged 1+ and 2+, selected for a planned study from reservoirs of fishery importance located in Karelia. The emphasis on the phenotypic properties of isolated microorganisms is associated with the increasing epizootic role of virulent strains of Pseudomonas aureofaciens, Ps. chlororaphis, Ps. fluorescens, Ps. putida and others in the development of infectious diseases of salmon fish species. Isolation, identification and study of phenotypic features of isolated pseudomonas cultures were performed according to the recommendations for laboratory diagnostics of Pseudomonas for fish. In parallel, to analyze the degree of invasiveness, the hemolytic activity (HA), as well as the ability to biofilm formation (BPO) and the antilysozyme activity (ALA) of bacteria were evaluated. It was found that the isolated phenotypic variants of pseudomonas bacteria have a pronounced invasiveness, which is more manifested in the form of hemolytic and anti-lysozyme activity.","PeriodicalId":198921,"journal":{"name":"Transactions of Papanin Institute for Biology of Inland Waters RAS","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124048914","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}
{"title":"MORPHOLOGICAL VARIABILITY OF SPECIES OF THE GENUS ACHNANTHIDIUM (BACILLARIOPHYTA) RARE FOR THE FLORA OF RUSSIA","authors":"S. Genkal, T. Eremkina","doi":"10.47021/0320-3557-2022-56-61","DOIUrl":"https://doi.org/10.47021/0320-3557-2022-56-61","url":null,"abstract":"The study of phytoplankton in the Nizhny Tagil Reservoir using scanning electron microscopy made it possible to obtain the data on morphology of some representatives of the genus Ashnanthidium: A. catenatum, A. dolomiticum, A. eutrophilum, A. saprophilum. The ranges of variability of the main diagnostic features (length and width of the valve, number of striae and areolae in 10 µm) were found and new values were obtained for some of them; the first data on such an important ultrastructural feature as the number of areolae in 10 µm were obtained for the species A. catenatum, A. dolomiticum, and A. eutrophilum.","PeriodicalId":198921,"journal":{"name":"Transactions of Papanin Institute for Biology of Inland Waters RAS","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126945360","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}
{"title":"A NEW SPECIES OF CAT'S-TAIL (TYPHA L., TYPHACEAE) FROM SOUTH SAKHALIN","authors":"A. Krasnova, A. Efremov","doi":"10.47021/0320-3557-2022-62-67","DOIUrl":"https://doi.org/10.47021/0320-3557-2022-62-67","url":null,"abstract":"The results of a comparative morphological analysis of Typha sakhalinica Krasnova et Efremov are pre-sented. It was found that the morphological characters of the reproductive organs do not correspond to T. latifolia from the European part of Russia. The species is distinguished by staminate flowers with narrow membran-ous anthers, large and solitary pollen, degraded flowers in bunches of three. Plants are smaller, cauline leaves with axils and membranous auricles directed downwards. It is believed T. sakhalinica is a Pleistocene species that emerged from the isolation of Sakhalin Island from the mainland North-Eastern Asia.","PeriodicalId":198921,"journal":{"name":"Transactions of Papanin Institute for Biology of Inland Waters RAS","volume":"160 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123100814","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}
{"title":"NEW DATA ON DYTISCIDAE, HYDROPHILIDAE, HYDRAENIDAE, DRYOPIDAE AND HETEROCERIDAE (COLEOPTERA) OF NORTH OSSETIA","authors":"A. Sazhnev, A. Prokin","doi":"10.47021/0320-3557-2022-38-45","DOIUrl":"https://doi.org/10.47021/0320-3557-2022-38-45","url":null,"abstract":"The species Ochthebius anatolicus Janssens, 1963 (Hydraenidae) is recorded in Russia for the first time. A new record of Laccobius hindukuschi Chiesa, 1966 (Hydrophilidae) confirms the presence of the species in the fauna of Russia and is the first for North Caucasus and the Republic of North Ossetia. Six species are recorded from North Ossetia for the first time: Agabus dilatatus (Brullé, 1832) (Dytiscidae), Laccobius alternus Motschulsky, 1855, Cercyon lateralis (Marsham, 1802) (Hydrophilidae), Ochthebius anatolicus (Hydraenidae), Praehelichus asiaticus (Motschulsky, 1845) and Pomatinus substriatus (P.W.J. Müller, 1806) (Dryopidae). The records of Hydroporus transgrediens Gschwendtner, 1923 (Dytiscidae) and two species of Heteroceridae (Augyles maritimus (Guérin-Méneville, 1844) and Heterocerus fenestratus (Thunberg, 1784)) are confirmed by new examined material. Laccobius alternus is additionally recorded from Kabardino-Balkaria Republic for the first time. Original photographs of the habitus, male genitalia and macrohabitats are provided for some species; such photographs for Agabus dilatatus have never been published before.","PeriodicalId":198921,"journal":{"name":"Transactions of Papanin Institute for Biology of Inland Waters RAS","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134046185","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}
A. Lyutikov, A. Korolev, A. Shumilina, M. Vylka, A. Selyukov, E. Kurdina, Yu.A. Baskakova, R. Artemov
{"title":"PHYSIOLOGICAL STATE OF ONE-YEAR-OLD AND TWO-YEAR-OLD PIKEPERCH (SANDER LUCIOPERCA) AFTER WINTERING IN CAGES AND PONDS","authors":"A. Lyutikov, A. Korolev, A. Shumilina, M. Vylka, A. Selyukov, E. Kurdina, Yu.A. Baskakova, R. Artemov","doi":"10.47021/0320-3557-2022-7-25","DOIUrl":"https://doi.org/10.47021/0320-3557-2022-7-25","url":null,"abstract":"Studies of the physiological state of one-year-old and two-year-old pikeperch after wintering in fish farming cages and ponds have shown significant differences in mass-size, chemical, hematological and histophysiological parameters of fish. For pikeperch of both ages, significant differences were observed in the form of higher values of the liver index in farmed fish (1.63% vs. 1.33% in one-year-olds and 2.79% vs. 1.16% in two-year-olds), abdominal fat index (0.96% vs. 0.39% in one-year-olds and 7.88% vs. 0.44% in two-year-olds), vitamin C (76.5% vs. 18.9% in one-year-olds and 69.9% vs. 12.3% in two-year-olds), in the shift of the balance of the fatty acid status of body lipids towards the accumulation of MUFAs – monounsaturated fatty acids (39.61% vs. 27.47% of the total fatty acids in one-year-olds and 54.34% vs. 39.90% of the total fatty acids in two-year-olds), a decrease in the proportion of physiologically active acids of the n-3 series (21.60% vs. 22.53% of the total fatty acids in one-year-olds and 12.19% vs. 17.70% of the total fatty acids in two-year-olds), and a significant decrease in hemoglobin (65.2 g /l vs. 76.5 g /l) and MCH – the average content of hemoglobin in the erythrocyte (28.4 vs. 33.9 pictograms, pg) in one-year-olds and a tendency to decrease these indicators in two-year-olds (68.7 g /l vs. 73.5 g /l hemoglobin and 31.7 pg vs. 35.6 pg, respectively). More pronounced differences in the studied parameters are characteristic of older pikeperch from fish farms, relative to fish from ponds. Two-year-old pikeperch reared in cages of a fish farm are characterized by significantly greater length (21.10 vs. 18.78 cm) and body weight (89.50 vs. 68.97 g), high content of body lipids (8.75 vs. 2.05%), dry matter (30.8 vs. 23.4%) and BEV – nitrogen-free extractives (4.11 versus 1.55%). Two-year-old pikeperch reared in cages of a fish farm are characterized by significantly greater length (21.10 cm vs. 18.78 cm) and body weight (89.50 g vs. 68.97 g), high content of body lipids (8.75% vs. 2.05%), dry matter (30.8% vs. 23.4%) and NFE - nitrogen-free extractives (4.11% versus 1.55%). In addition, two–year-olds (females) in industrial conditions had more developed gonads with a similar gonadosomatic index with pikeperch from ponds (0.20 and 0.23, respectively) - active formation of a reserve fund of germ cells and the presence of oocytes of various size groups were observed in the ovaries of farmed fish. Certain distinctions in pikeperch of different ages after wintering in fish farming cages and ponds are related to different conditions of keeping and feeding fish.","PeriodicalId":198921,"journal":{"name":"Transactions of Papanin Institute for Biology of Inland Waters RAS","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125598328","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}
R. Avalyan, A. Atoyants, L. Hambaryan, E. Aghajanyan, B. Gabrielyan, R. Aroutiounian
{"title":"ASSESSMENT OF THE STATE OF LAKE SEVAN WATER DURING THE SUMMER USING MODEL TEST-OBJECTS","authors":"R. Avalyan, A. Atoyants, L. Hambaryan, E. Aghajanyan, B. Gabrielyan, R. Aroutiounian","doi":"10.47021/0320-3557-2022-26-37","DOIUrl":"https://doi.org/10.47021/0320-3557-2022-26-37","url":null,"abstract":"The biotesting of the level of genotoxicity and clastogenicity of deep and surface waters of Lake Sevan (Armenia) in the summer period was carried out using two test systems: of the model test object Tradescantia (clone 02) and phytoplankton. The Tradescantia clone 02 stamen hair mutations (Trad-SHM) and Tradescantia micronucleus (Trad-MCN) bioassays are two of the efficient and reliable biomonotory test systems for mutagenicity of air, water and soil polutans. Here we report a significant increase in the level of The Tradescantia clone 02 stamen hair mutations (Trad-SHM) somatic mutations in all investigated probes compared to phone control level. The maximum manifestation of these genetic effects – PC was observed in Gilli water samples with five-fold increase. According to the micronucleus test (Trad-MN), when studying its two main test-criteria: the percentage of tetrads with micronuclei and micronuclei in tetrads, the maximum frequency of test indicators was detected in water samples of Tsapatakh and Arpa, where their level was 4 times higher than the background. A significant positive correlation between the somatic mutation events and consentration of chemical elements Ca, K, Na, Mg, Fe, Mo (p<0.05; p<0.001) was revealed. It also showed a significant correlation between MN in tetrads and consentration of chemical elements Na, Ca, Fe, Mo, Ni, Cd (p<0.05). The analysis of the spatial distribution of phytoplankton in the water area of the Lake Sevan, as well as data on the abundance, biomass and composition of the dominant species in the summer observation period showed an intensive development of Cyanoprokaryota (HAB) and green algae in the all water area of the lake, which caused the process of its eutrophication.","PeriodicalId":198921,"journal":{"name":"Transactions of Papanin Institute for Biology of Inland Waters RAS","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129434215","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}
{"title":"THE RESULTS OF STUDYING DIAPAUSING EGGS (CYSTS) OF BRINE SHRIMP ARTEMIA ON THE BOTTOM OF HYPERHALINE LAKES OF THE ALTAI TERRITORY","authors":"G. Lukerina","doi":"10.47021/0320-3557-2022-33-49","DOIUrl":"https://doi.org/10.47021/0320-3557-2022-33-49","url":null,"abstract":"The results of studies of bottom Artemia cysts in Kuchukskoe Lake and Bolshoe Yarovoe Lake of the Altai Territory in 2020 are presents. Artemia cysts at the bottom of lakes were observed all year. This number depended on the type of soil. The biomass of bottom cysts in Kuchukskoe Lake was 154.2 tons in spring, of which available and externally-whole – from 11.8 to 25.2 tons. Bottom Artemia cysts are not available on 27% of the lake area in Kuchukskoe Lake due to the high salinity of the water and salt precipitation. The viability of cysts from shallow bottom areas was 8.9% in spring. In Kuchukskoe Lake the main role in the formation of first generation Artemia in spring is played by cysts from accumulations on the coast, washed away by the runoff of melt water. The deep water of Bolshoe Yarovoe Lake determines the peculiarities of the temperature regime in spring, which prevents the rise of Artemia cysts from the bottom from depths of more than 7.0 m. Significant silt deposits at the bottom of the lake are an aggressive environment for cysts, which is shown by the presence of different group of quality: externally-whole, with defective chorion, gray or black color. The biomass of bottom cysts in Bolshoe Yarovoe Lake was 38934 tons in autumn of 2020, which exceeds the reproductive capacity of the Artemia population in one year. This proves the long-term period of accumulation of cysts at the bottom and their incomplete participation in the formation of the Artemia first generation in spring. The maximum hatching of nauplius from bottom cysts in spring from a depth of more than 9.0 m was 16%, from a depth of 8.0 m – 26%.","PeriodicalId":198921,"journal":{"name":"Transactions of Papanin Institute for Biology of Inland Waters RAS","volume":"09 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128266221","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}
{"title":"SEASONAL DYNAMICS OF ZOPLANKTON OF THE SHEKSNA RESERVOIR (VOLOGDA REGION)","authors":"E. Lobunicheva, A. Litvin, N. Dumnich","doi":"10.47021/0320-3557-2022-18-32","DOIUrl":"https://doi.org/10.47021/0320-3557-2022-18-32","url":null,"abstract":"The paper analyzes the seasonal dynamics of the composition, structure, and abundance of zooplankton in different parts of the Sheksna Reservoir in 2016–2020. The zooplankton in the reservoir includes 107 species (Rotifera – 41, Cladocera – 41, Copepoda – 25). The authors have found 88 species in Lake Beloye and 90 species in the river part of the reservoir. 7 species in the lake and 17 in the river part of the reservoir have been found for the first time. The communities of different parts of the reservoir are similar in terms of zooplankton composition (76%). The highest level of dominance (0.32–0.38) of zooplankton is observed during the ice period. In Lake Beloye, this figure is higher than in the river part of the reservoir. A small set of species (Kellicottia longispina, Keratella cochlearis, Eudiaptomus gracilis) is characterized by high density in all seasons of the year. Some species are dominant only in certain periods. In summer, rotifers of the genus Polyarthra and Mesocyclops leuckarti dominate the entire water area of the reservoir. Lake Beloye is dominated by Daphnia galeata and Chydorus sphaericus in summer. The composition of the dominant zooplankton complex in different parts of the reservoir is similar in certain seasons. Only in May, the structure of the dominant complex of the lake and river sections of the reservoir differs. The ratio of dominants in Lake Beloye in May is similar to the ice period. The maximum abundance of zooplankton in the reservoir is recorded in summer. From May to November the largest number of copepods is observed. In March, rotifers dominate. Cladocera were noted as dominants only in the lake part of the reservoir. The seasonal dynamics of the structure and abundance of zooplankton generally corresponds to those in the 1970s and early 2000s.","PeriodicalId":198921,"journal":{"name":"Transactions of Papanin Institute for Biology of Inland Waters RAS","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122479281","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}