Phytoplankton in the limans of the Kulikov-Kurchansky group (limans of the Azov Region)
Brief analysis of the knowledge level on phytoplankton community of the limans of the Azov Region by various researchers is given for several decades. The data on seasonal diversity of taxonomic composition of the microalgae, identified in the limans of the Kulikov-Kurchansky group, are presented for 2015, when 244 algae species, belonging to seven taxonomic divisions, were recorded. The highest number of species (100) was represented by the green algae division; 79 species of diatoms were also recorded, as well as 29 species of cyanophytae, and 24 species of euglenoids. Other taxonomic groups of algae were less representative and were registered only sporadically: 9 species of dinoflagellates and cryptomonads, 3 species of ochrophyta. The estimate of seasonal variability of species and numerical composition of phytoplankton community of the limans is presented. In 2015, average annual abundance of the phytoplankton in the limans of the Kulikov-Kurchansky group was 8,580.5 million cells/m3 (with fluctuations from 12,425.6 million cells/m3 in spring to 4,177.9 million cells/m3 in autumn). Phytoplankton biomass in the studied area equaled 2,923.6 mg/m3 on average (with fluctuations from 4,285.06 mg/m3 in spring to 1,764.70 mg/m3 in autumn). High phytoplankton concentrations, which remained in the limans during the whole season, were essential to form primary production, which level in the recent years was to a large extent related to high water temperatures, especially in the water bodies with small surface area, shallow depths and limited water exchange. Taxonomic diversity of microalgae community is an important parameter in assessment of environmental state of the water bodies, because its seasonal variability determines the phytocoenosis reaction to the changes in the environmental quality.
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Format: | Journal Contribution biblioteca |
Language: | Russian |
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2018
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Subjects: | Phytocoenosis, Abundance, Biomass, Aquatic communities, Phytoplankton, Taxonomy, Seasonal variations, |
Online Access: | http://hdl.handle.net/1834/14952 |
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dig-aquadocs-1834-149522021-05-19T06:58:08Z Phytoplankton in the limans of the Kulikov-Kurchansky group (limans of the Azov Region) Фитопланктон лиманов Куликово-Курчанской группы (азовские лиманы) Rudakova, N.A. Vishnevsky, S.L. Petrashov, V.I. Matveeva, E.I. Bragina, T.M. Phytocoenosis Abundance Biomass Aquatic communities Phytoplankton Taxonomy Seasonal variations Brief analysis of the knowledge level on phytoplankton community of the limans of the Azov Region by various researchers is given for several decades. The data on seasonal diversity of taxonomic composition of the microalgae, identified in the limans of the Kulikov-Kurchansky group, are presented for 2015, when 244 algae species, belonging to seven taxonomic divisions, were recorded. The highest number of species (100) was represented by the green algae division; 79 species of diatoms were also recorded, as well as 29 species of cyanophytae, and 24 species of euglenoids. Other taxonomic groups of algae were less representative and were registered only sporadically: 9 species of dinoflagellates and cryptomonads, 3 species of ochrophyta. The estimate of seasonal variability of species and numerical composition of phytoplankton community of the limans is presented. In 2015, average annual abundance of the phytoplankton in the limans of the Kulikov-Kurchansky group was 8,580.5 million cells/m3 (with fluctuations from 12,425.6 million cells/m3 in spring to 4,177.9 million cells/m3 in autumn). Phytoplankton biomass in the studied area equaled 2,923.6 mg/m3 on average (with fluctuations from 4,285.06 mg/m3 in spring to 1,764.70 mg/m3 in autumn). High phytoplankton concentrations, which remained in the limans during the whole season, were essential to form primary production, which level in the recent years was to a large extent related to high water temperatures, especially in the water bodies with small surface area, shallow depths and limited water exchange. Taxonomic diversity of microalgae community is an important parameter in assessment of environmental state of the water bodies, because its seasonal variability determines the phytocoenosis reaction to the changes in the environmental quality. Дан краткий анализ степени изученности фитопланктонного сообщества азовских лиманов различными исследователями за несколько десятилетий. Приведены данные по сезонному разнообразию таксономического состава микроводорослей Куликово-Курчанской группы лиманов в 2015 г., где было отмечено 244 вида водорослей, относящихся к 7 систематическим отделам. Наибольшее количество видов представлено в отделе зеленых водорослей — 100 видов, диатомовых — 79, цианобактерий — 29, эвгленовых — 24. Остальные группы водорослей были менее представительными и встречались эпизодически: динофлагелляты и криптофитовые — 9 видов, охрофитовые — 3 вида. Приведена оценка сезонной изменчивости видового и количественного состава фитопланктонного сообщества лиманов. В 2015 г. среднегодовая численность фитопланктона в лиманах Куликово-Курчанской группы составляла 8580,5 млн кл./м3 (показатели варьировали от 12425,6 млн кл./м3 весной до 4177,9 млн кл./м3 — осенью). Биомасса фитопланктона в среднем по району исследований составляла 2923,6 мг/м3 (от 4285,06 мг/м3 весной до 1764,70 мг/м3 осенью). Высокие концентрации фитопланктона, сохранявшиеся в лиманах в течение всего сезона, играли существенную роль в формировании первичной продукции, уровень которой в последние годы во многом связан с высокими температурами воды, особенно в водоемах, имеющих небольшую площадь водного зеркала, с небольшими глубинами и ограниченным водообменом. Таксономическое разнообразие сообщества микроводорослей является важной характеристикой в оценке экологического состояния водоемов, т. к. его сезонная изменчивость характеризует отклик фитоценоза на изменение качества среды. Published 2019-02-15T12:39:20Z 2019-02-15T12:39:20Z 2018 Journal Contribution Refereed УДК 581.526.325 (262.54) http://hdl.handle.net/1834/14952 ru pp.63-73 Kulikov-Kurchansky Limans Azov Sea |
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Phytocoenosis Abundance Biomass Aquatic communities Phytoplankton Taxonomy Seasonal variations Phytocoenosis Abundance Biomass Aquatic communities Phytoplankton Taxonomy Seasonal variations |
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Phytocoenosis Abundance Biomass Aquatic communities Phytoplankton Taxonomy Seasonal variations Phytocoenosis Abundance Biomass Aquatic communities Phytoplankton Taxonomy Seasonal variations Rudakova, N.A. Vishnevsky, S.L. Petrashov, V.I. Matveeva, E.I. Phytoplankton in the limans of the Kulikov-Kurchansky group (limans of the Azov Region) |
description |
Brief analysis of the knowledge level on phytoplankton community of the limans of the Azov Region
by various researchers is given for several decades. The data on seasonal diversity of taxonomic composition of the microalgae, identified in the limans of the Kulikov-Kurchansky group, are presented for 2015, when 244 algae species, belonging to seven taxonomic divisions, were recorded. The highest number of species (100) was represented by the green algae division; 79 species of diatoms were also recorded, as well as 29 species of cyanophytae, and 24 species of euglenoids. Other taxonomic groups of algae were less representative and were registered only sporadically: 9 species of dinoflagellates and cryptomonads, 3 species of ochrophyta. The estimate of seasonal variability of species and numerical composition of phytoplankton community of the limans is presented. In 2015, average annual abundance of the phytoplankton in the limans of the Kulikov-Kurchansky group was 8,580.5 million cells/m3 (with fluctuations from 12,425.6 million cells/m3 in spring to 4,177.9 million cells/m3 in autumn). Phytoplankton biomass in the studied area equaled 2,923.6 mg/m3 on average (with fluctuations from 4,285.06 mg/m3 in spring to 1,764.70 mg/m3 in autumn). High phytoplankton concentrations, which remained in the limans during the whole season, were essential to form primary production, which level in the recent years was to a large extent related to high water temperatures, especially in the water bodies with small surface area, shallow depths and limited water exchange. Taxonomic diversity of microalgae community is an important parameter in assessment of environmental state of the water bodies, because its seasonal variability determines the phytocoenosis reaction to the changes in the environmental quality. |
author2 |
Bragina, T.M. |
author_facet |
Bragina, T.M. Rudakova, N.A. Vishnevsky, S.L. Petrashov, V.I. Matveeva, E.I. |
format |
Journal Contribution |
topic_facet |
Phytocoenosis Abundance Biomass Aquatic communities Phytoplankton Taxonomy Seasonal variations |
author |
Rudakova, N.A. Vishnevsky, S.L. Petrashov, V.I. Matveeva, E.I. |
author_sort |
Rudakova, N.A. |
title |
Phytoplankton in the limans of the Kulikov-Kurchansky group (limans of the Azov Region) |
title_short |
Phytoplankton in the limans of the Kulikov-Kurchansky group (limans of the Azov Region) |
title_full |
Phytoplankton in the limans of the Kulikov-Kurchansky group (limans of the Azov Region) |
title_fullStr |
Phytoplankton in the limans of the Kulikov-Kurchansky group (limans of the Azov Region) |
title_full_unstemmed |
Phytoplankton in the limans of the Kulikov-Kurchansky group (limans of the Azov Region) |
title_sort |
phytoplankton in the limans of the kulikov-kurchansky group (limans of the azov region) |
publishDate |
2018 |
url |
http://hdl.handle.net/1834/14952 |
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