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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gladyshev M. I., Sushchik N. N., Shulepina S. P., Ageev A. V., Dubovskaya O. P., Kolmakova A. A., Kalachova G. S.
Заглавие : Secondary Production of Highly Unsaturated Fatty Acids by Zoobenthos Across Rivers Contrasting in Temperature
Колич.характеристики :12 с
Коллективы : Siberian Federal University [6.1089.214/K]; Russian Federal Tasks of Fundamental Research [51.1.1]
Место публикации : River Res. Appl.: WILEY-BLACKWELL, 2016. - Vol. 32, Is. 6. - С. 1252-1263. - ISSN 1535-1459, DOI 10.1002/rra.2945. - ISSN 1535-1467(eISSN)
Примечания : Cited References:55. - The work was supported by the project no. 6.1089.214/K of Siberian Federal University carried out according to Federal Tasks of Ministry of Education and Science of Russian Federation and by Russian Federal Tasks of Fundamental Research (project no. 51.1.1).
Предметные рубрики: AQUATIC ECOSYSTEMS
CLIMATE-CHANGE
YENISEI RIVER
ALPINE PONDS
LAKE
Ключевые слова (''Своб.индексиров.''): essential polyunsaturated fatty acids--river zoobenthos--secondary--production--biodiversity--water temperature--climate warming
Аннотация: Highly unsaturated fatty acids (HUFA), namely eicosapentaenoic acid (20:5n-3, EPA) and docosahexaenoic acid (22:6n-3, DHA), which are essential for many animals, including humans, are mainly produced in aquatic trophic webs. In fast-flowing rivers, macrozoobenthos is the main source of HUFA for fish and may be particularly vulnerable to thermal alterations associated with climate change. We studied benthic communities in a unique natural ecosystem: the Yenisei River downstream of the dam of Krasnoyarsk Hydroelectric Power Station with very low temperature in summer because of discharge of cold water from deep in the reservoir and its tributaries with high summer temperature. This natural experiment' allowed to get rid of confounding factors, such as differences in light, seasonality, geology (biogeochemistry) and biogeography (regional species pools). As found, in spite of an increase of biodiversity and rates of daily production in warm rivers compared with cold sites, DHA and partly EPA production of zoobenthos decreased with the increase of temperature because of changes in species composition. Thus, in a climate warming context, we can predict a decrease of production of these HUFA by river zoobenthos and thereby a diminishing of their supply for fish and next to humans. Copyright (c) 2015 John Wiley & Sons, Ltd.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Chertoprud M. V., Krylenko S. V., Lukinych A. I., Glazov P. M., Dubovskaya O. P., Chertoprud E. S.
Заглавие : Specific Features of the Macrozoobenthic Communities of Small Arctic Lakes in Eurasia
Колич.характеристики :14 с
Коллективы : Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [20-04-00145]; Meeresenten project (Bundesamt fur Naturschutz, BfN) [100308472]; Federal Agency for Nature Protection of Germany (Conservation Bundesamtfur Naturschutz, BfN), grant MEERESENTEN [3516821500]; Norwegian Institute for Nature Research (NINA); Research Council of NorwayResearch Council of Norway [227024, 246726]; Basic Research Program of the Russian Federation [51.1.1]; Ministry of Science and Higher Education of the Russian Federation to the Siberian Federal University [FSRZ-2020-0006]; [AAAA-A19119021990093-8]
Место публикации : Inland Water Biol.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2021. - Vol. 14, Is. 4. - С. 401-414. - ISSN 1995-0829, DOI 10.1134/S1995082921030056. - ISSN 1995-0837(eISSN)
Примечания : Cited References:58. - The primary processing of the material and statistical analysis of the data were carried out with financial support from the Russian Foundation for Basic Research (project No. 20-04-00145). Field works on Kolguev Island were sup-ported by the Meeresenten project (Bundesamt fur Naturschutz, BfN; online ID 100308472), the Federal Agency for Nature Protection of Germany (Conservation Bundesamtfur Naturschutz, BfN), grant MEERESENTEN (3516821500), and State assignment.AAAA-A19119021990093-8; works on Svalbard were funded by the Norwegian Institute for Nature Research (NINA) and Research Council of Norway, projects no. 227024 and 246726. Research on the Putorana Plateau was supported by a state task as part of the Basic Research Program of the Russian Federation, topic no. 51.1.1, and the State Assignment of the Ministry of Science and Higher Education of the Russian Federation to the Siberian Federal University, project no. FSRZ-2020-0006.
Предметные рубрики: WATER BODIES
ECOSYSTEMS
ZOOBENTHOS
RECOVERY
SVALBARD
IMPACT
PONDS
Аннотация: The taxonomic structure, typology, species richness, and total abundance of bentic and littoral macroinvertebrate communities from small lakes of the Arctic and Subarctic zones are considered on the basis of original data from three northern Palearctic regions (the foot of the Putorana Plateau, Kolguev Island, and Western Svalbard Island). A comparative analysis of the communities of these regions has been carried out. The features of High Arctic insular, Low Arctic, subarctic, and boreal lake communities are discussed using a large volume of literature data. The complex pattern of changes in the total benthos biomass of small lakes has been revealed: it decreases in the subarctic taiga, increases in the hypoarctic tundra, and decreases again in the High Arctic.
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