Structure of settlements of Macoma balthica in the southern knee of the Kola Bay
The study of seasonal dynamics of size-mass structure of Macoma balthica settlements has been investigated on the littoral zone of the southern part of the Kola Bay. Age structure has been calculated; data on the density and biomass of settlements have been obtained; the distribution of the mollusk...
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Murmansk State Technical University
2017
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Online Access: | https://doi.org/10.21443/1560-9278-2017-20-2-363-369 https://doaj.org/article/8eda1d7952f44579b5b8bd8c9467728a |
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ftdoajarticles:oai:doaj.org/article:8eda1d7952f44579b5b8bd8c9467728a 2023-05-15T17:04:44+02:00 Structure of settlements of Macoma balthica in the southern knee of the Kola Bay Smirnova A. S. Kravets P. P. 2017-06-01T00:00:00Z https://doi.org/10.21443/1560-9278-2017-20-2-363-369 https://doaj.org/article/8eda1d7952f44579b5b8bd8c9467728a RU rus Murmansk State Technical University http://vestnik.mstu.edu.ru/show.shtml?art=1878&pdf=1 https://doaj.org/toc/1560-9278 https://doaj.org/toc/1997-4736 doi:10.21443/1560-9278-2017-20-2-363-369 1560-9278 1997-4736 https://doaj.org/article/8eda1d7952f44579b5b8bd8c9467728a Vestnik MGTU, Vol 20, Iss 2, Pp 363-369 (2017) Macoma balthica Kola Bay biomass population density General Works A article 2017 ftdoajarticles https://doi.org/10.21443/1560-9278-2017-20-2-363-369 2022-12-31T09:03:05Z The study of seasonal dynamics of size-mass structure of Macoma balthica settlements has been investigated on the littoral zone of the southern part of the Kola Bay. Age structure has been calculated; data on the density and biomass of settlements have been obtained; the distribution of the mollusk on the littoral has been shown. On the littoral zone of the Kola Bay makoms are found everywhere, mostly inhabiting the lower and middle horizons of the littoral; this distribution depends on the content of food particles, which is an indirect indicator of the granulometric composition of soil and total organic content. The highest indicators of biomass and the number of settlements have been marked in the intertidal zone near the village of Abram-mys. This is due to the presence of silty-sandy soil – the most suitable habitat for shellfish, as the abundance of settlement figures increases as the silting of sand. The increase in the density of makom settlements in autumn occurs due to the active settling of juveniles. Shellfish from the right bank settlements surpass others on the morphometric parameters. Large shell sizes are explained by the presence of streams ensuring the inflow of food particles. Researches of the size-distribution of Macoma balthica mass parameters have shown that their values are increased from the upper to the lower horizon littoral as in the lower horizon the enhanced water exchange contributes to the self-cleaning processes and provides shellfish by food. The dominance of mollusks of younger age groups (0–3 years) is characteristic for all settlements. Clams with the maximum age of 8 years have been found in the New Bridge area. The presence in the samples of large number of mollusks of younger age groups indicates the normal development of Macoma balthica settlements. Article in Journal/Newspaper Kola Bay Directory of Open Access Journals: DOAJ Articles Abram Mys ENVELOPE(33.019,33.019,68.978,68.978) Abram-Mys ENVELOPE(33.020,33.020,68.977,68.977) Vestnik MGTU 20 2 363 369 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
Russian |
topic |
Macoma balthica Kola Bay biomass population density General Works A |
spellingShingle |
Macoma balthica Kola Bay biomass population density General Works A Smirnova A. S. Kravets P. P. Structure of settlements of Macoma balthica in the southern knee of the Kola Bay |
topic_facet |
Macoma balthica Kola Bay biomass population density General Works A |
description |
The study of seasonal dynamics of size-mass structure of Macoma balthica settlements has been investigated on the littoral zone of the southern part of the Kola Bay. Age structure has been calculated; data on the density and biomass of settlements have been obtained; the distribution of the mollusk on the littoral has been shown. On the littoral zone of the Kola Bay makoms are found everywhere, mostly inhabiting the lower and middle horizons of the littoral; this distribution depends on the content of food particles, which is an indirect indicator of the granulometric composition of soil and total organic content. The highest indicators of biomass and the number of settlements have been marked in the intertidal zone near the village of Abram-mys. This is due to the presence of silty-sandy soil – the most suitable habitat for shellfish, as the abundance of settlement figures increases as the silting of sand. The increase in the density of makom settlements in autumn occurs due to the active settling of juveniles. Shellfish from the right bank settlements surpass others on the morphometric parameters. Large shell sizes are explained by the presence of streams ensuring the inflow of food particles. Researches of the size-distribution of Macoma balthica mass parameters have shown that their values are increased from the upper to the lower horizon littoral as in the lower horizon the enhanced water exchange contributes to the self-cleaning processes and provides shellfish by food. The dominance of mollusks of younger age groups (0–3 years) is characteristic for all settlements. Clams with the maximum age of 8 years have been found in the New Bridge area. The presence in the samples of large number of mollusks of younger age groups indicates the normal development of Macoma balthica settlements. |
format |
Article in Journal/Newspaper |
author |
Smirnova A. S. Kravets P. P. |
author_facet |
Smirnova A. S. Kravets P. P. |
author_sort |
Smirnova A. S. |
title |
Structure of settlements of Macoma balthica in the southern knee of the Kola Bay |
title_short |
Structure of settlements of Macoma balthica in the southern knee of the Kola Bay |
title_full |
Structure of settlements of Macoma balthica in the southern knee of the Kola Bay |
title_fullStr |
Structure of settlements of Macoma balthica in the southern knee of the Kola Bay |
title_full_unstemmed |
Structure of settlements of Macoma balthica in the southern knee of the Kola Bay |
title_sort |
structure of settlements of macoma balthica in the southern knee of the kola bay |
publisher |
Murmansk State Technical University |
publishDate |
2017 |
url |
https://doi.org/10.21443/1560-9278-2017-20-2-363-369 https://doaj.org/article/8eda1d7952f44579b5b8bd8c9467728a |
long_lat |
ENVELOPE(33.019,33.019,68.978,68.978) ENVELOPE(33.020,33.020,68.977,68.977) |
geographic |
Abram Mys Abram-Mys |
geographic_facet |
Abram Mys Abram-Mys |
genre |
Kola Bay |
genre_facet |
Kola Bay |
op_source |
Vestnik MGTU, Vol 20, Iss 2, Pp 363-369 (2017) |
op_relation |
http://vestnik.mstu.edu.ru/show.shtml?art=1878&pdf=1 https://doaj.org/toc/1560-9278 https://doaj.org/toc/1997-4736 doi:10.21443/1560-9278-2017-20-2-363-369 1560-9278 1997-4736 https://doaj.org/article/8eda1d7952f44579b5b8bd8c9467728a |
op_doi |
https://doi.org/10.21443/1560-9278-2017-20-2-363-369 |
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Vestnik MGTU |
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20 |
container_issue |
2 |
container_start_page |
363 |
op_container_end_page |
369 |
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1766059070154866688 |