Hydrophysical factors affecting the distribution of chlorophyll "a" in a small lake
In recent years due to climate warming algal blooms have been observed in some boreal lakes during summer and autumn months, which reduces the quality of water. We studied the distribution of chlorophyll "a" in Lake Kroshnozero (North-western Russia) in 2021 and 2022. This lake has been us...
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ftdoajarticles:oai:doaj.org/article:38a9e35014b649afb74ee4d28a338d0b 2023-10-29T02:38:49+01:00 Hydrophysical factors affecting the distribution of chlorophyll "a" in a small lake Zdorovennova Galina Zdorovennov Roman Palshin Nikolay Bogdanov Sergey Smirnov Sergey Nikulina Anna Efremova Tatiana 2023-01-01T00:00:00Z https://doi.org/10.1051/e3sconf/202342004006 https://doaj.org/article/38a9e35014b649afb74ee4d28a338d0b EN FR eng fre EDP Sciences https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/57/e3sconf_ebwff2023_04006.pdf https://doaj.org/toc/2267-1242 2267-1242 doi:10.1051/e3sconf/202342004006 https://doaj.org/article/38a9e35014b649afb74ee4d28a338d0b E3S Web of Conferences, Vol 420, p 04006 (2023) Environmental sciences GE1-350 article 2023 ftdoajarticles https://doi.org/10.1051/e3sconf/202342004006 2023-10-01T00:40:19Z In recent years due to climate warming algal blooms have been observed in some boreal lakes during summer and autumn months, which reduces the quality of water. We studied the distribution of chlorophyll "a" in Lake Kroshnozero (North-western Russia) in 2021 and 2022. This lake has been used for fisheries for more than 50 years, and currently there is a trout farm there. We studied the influence of temperature, turbidity and transparency of water on the distribution of chlorophyll "a". Low water transparency limits photosynthesis to the upper 1.5-2.5 m layer. The stratification limits the transfer of algae cells along the water column, therefore, deeper than 2-3 m, the concentration of chlorophyll "a" decreases sharply. Water exchange causes the transfer of suspended solids from the southeastern basin, where the trout farm is located, to the northwestern one, where the maximum concentrations of chlorophyll "a" are observed. Additional stimulation of photosynthesis in the shallow and rapidly warming northwestern basin can occur due to the supply of nutrients from the catchment area. Features of the lake bathymetry contribute to the formation of bottom oxygen deficiency in the southeastern basin near the trout farm. Article in Journal/Newspaper North-Western Russia Directory of Open Access Journals: DOAJ Articles E3S Web of Conferences 420 04006 |
institution |
Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English French |
topic |
Environmental sciences GE1-350 |
spellingShingle |
Environmental sciences GE1-350 Zdorovennova Galina Zdorovennov Roman Palshin Nikolay Bogdanov Sergey Smirnov Sergey Nikulina Anna Efremova Tatiana Hydrophysical factors affecting the distribution of chlorophyll "a" in a small lake |
topic_facet |
Environmental sciences GE1-350 |
description |
In recent years due to climate warming algal blooms have been observed in some boreal lakes during summer and autumn months, which reduces the quality of water. We studied the distribution of chlorophyll "a" in Lake Kroshnozero (North-western Russia) in 2021 and 2022. This lake has been used for fisheries for more than 50 years, and currently there is a trout farm there. We studied the influence of temperature, turbidity and transparency of water on the distribution of chlorophyll "a". Low water transparency limits photosynthesis to the upper 1.5-2.5 m layer. The stratification limits the transfer of algae cells along the water column, therefore, deeper than 2-3 m, the concentration of chlorophyll "a" decreases sharply. Water exchange causes the transfer of suspended solids from the southeastern basin, where the trout farm is located, to the northwestern one, where the maximum concentrations of chlorophyll "a" are observed. Additional stimulation of photosynthesis in the shallow and rapidly warming northwestern basin can occur due to the supply of nutrients from the catchment area. Features of the lake bathymetry contribute to the formation of bottom oxygen deficiency in the southeastern basin near the trout farm. |
format |
Article in Journal/Newspaper |
author |
Zdorovennova Galina Zdorovennov Roman Palshin Nikolay Bogdanov Sergey Smirnov Sergey Nikulina Anna Efremova Tatiana |
author_facet |
Zdorovennova Galina Zdorovennov Roman Palshin Nikolay Bogdanov Sergey Smirnov Sergey Nikulina Anna Efremova Tatiana |
author_sort |
Zdorovennova Galina |
title |
Hydrophysical factors affecting the distribution of chlorophyll "a" in a small lake |
title_short |
Hydrophysical factors affecting the distribution of chlorophyll "a" in a small lake |
title_full |
Hydrophysical factors affecting the distribution of chlorophyll "a" in a small lake |
title_fullStr |
Hydrophysical factors affecting the distribution of chlorophyll "a" in a small lake |
title_full_unstemmed |
Hydrophysical factors affecting the distribution of chlorophyll "a" in a small lake |
title_sort |
hydrophysical factors affecting the distribution of chlorophyll "a" in a small lake |
publisher |
EDP Sciences |
publishDate |
2023 |
url |
https://doi.org/10.1051/e3sconf/202342004006 https://doaj.org/article/38a9e35014b649afb74ee4d28a338d0b |
genre |
North-Western Russia |
genre_facet |
North-Western Russia |
op_source |
E3S Web of Conferences, Vol 420, p 04006 (2023) |
op_relation |
https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/57/e3sconf_ebwff2023_04006.pdf https://doaj.org/toc/2267-1242 2267-1242 doi:10.1051/e3sconf/202342004006 https://doaj.org/article/38a9e35014b649afb74ee4d28a338d0b |
op_doi |
https://doi.org/10.1051/e3sconf/202342004006 |
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E3S Web of Conferences |
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420 |
container_start_page |
04006 |
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1781065201162911744 |