Content of nutrients and limitation of phytoplankton primary production in the specially protected natural area “Cape Martyan” (Black Sea)

The results are presented of studying the content of nitrogen compounds and mineral phosphorus, as well as phytoplankton primary production (PPP). The research was carried out in 2017–2019 in the marine area of the specially protected natural area “Cape Martyan” located on the southern coast of Cri...

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Autores principales:	V. N. Egorov, N. I. Bobko, Yu. G. Marchenko, S. Ye. Sadogurskiy
Formato:	article
Lenguaje:	EN RU
Publicado:	A. O. Kovalevsky Institute of Biology of the Southern Seas of RAS 2021
Materias:	Black Sea Cape Martyan nitrogen compounds phosphates precipitation plankton Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/65705acb99584c0caa85b232a67deb11
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spelling	oai:doaj.org-article:65705acb99584c0caa85b232a67deb112021-12-01T13:10:12ZContent of nutrients and limitation of phytoplankton primary production in the specially protected natural area “Cape Martyan” (Black Sea)10.21072/mbj.2021.06.4.022499-97682499-9776https://doaj.org/article/65705acb99584c0caa85b232a67deb112021-11-01T00:00:00Zhttps://marine-biology.ru/mbj/article/view/318https://doaj.org/toc/2499-9768https://doaj.org/toc/2499-9776 The results are presented of studying the content of nitrogen compounds and mineral phosphorus, as well as phytoplankton primary production (PPP). The research was carried out in 2017–2019 in the marine area of the specially protected natural area “Cape Martyan” located on the southern coast of Crimea (Black Sea). As found, during summer in the surface seawater layer, PPP can be limited by both nitrogen and phosphorus. The dependence of PPP variation on the concentration of total nitrogen in water is not significant, while the dependence on the concentration of phosphorus is significant. It is shown that during the entire annual cycle, concentrations of nitrites, nitrates, ammonium, and mineral phosphorus vary but remain within the limits that do not lead to water hypereutrophication. A high ecological significance of precipitation was revealed: the related increase in PO4 concentration caused a transition in PPP limitation mode from phosphorus to nitrogen one. Using theoretical concepts, it is substantiated that, under oligotrophic conditions, an increase in the concentration of the substrate limiting PPP in water results in an increase in the rate of its uptake from the environment in accordance with the negative feedback of natural regulation of ecosystem homeostasis. Under conditions of eutrophication, the effect of production processes on water conditioning by the factor of nutrients decreases. V. N. EgorovN. I. BobkoYu. G. MarchenkoS. Ye. SadogurskiyA. O. Kovalevsky Institute of Biology of the Southern Seas of RASarticleBlack SeaCape Martyannitrogen compoundsphosphatesprecipitationplanktonBiology (General)QH301-705.5ENRUМорской биологический журнал, Vol 6, Iss 4 (2021)
institution	DOAJ
collection	DOAJ
language	EN RU
topic	Black Sea Cape Martyan nitrogen compounds phosphates precipitation plankton Biology (General) QH301-705.5
spellingShingle	Black Sea Cape Martyan nitrogen compounds phosphates precipitation plankton Biology (General) QH301-705.5 V. N. Egorov N. I. Bobko Yu. G. Marchenko S. Ye. Sadogurskiy Content of nutrients and limitation of phytoplankton primary production in the specially protected natural area “Cape Martyan” (Black Sea)
description	The results are presented of studying the content of nitrogen compounds and mineral phosphorus, as well as phytoplankton primary production (PPP). The research was carried out in 2017–2019 in the marine area of the specially protected natural area “Cape Martyan” located on the southern coast of Crimea (Black Sea). As found, during summer in the surface seawater layer, PPP can be limited by both nitrogen and phosphorus. The dependence of PPP variation on the concentration of total nitrogen in water is not significant, while the dependence on the concentration of phosphorus is significant. It is shown that during the entire annual cycle, concentrations of nitrites, nitrates, ammonium, and mineral phosphorus vary but remain within the limits that do not lead to water hypereutrophication. A high ecological significance of precipitation was revealed: the related increase in PO4 concentration caused a transition in PPP limitation mode from phosphorus to nitrogen one. Using theoretical concepts, it is substantiated that, under oligotrophic conditions, an increase in the concentration of the substrate limiting PPP in water results in an increase in the rate of its uptake from the environment in accordance with the negative feedback of natural regulation of ecosystem homeostasis. Under conditions of eutrophication, the effect of production processes on water conditioning by the factor of nutrients decreases.
format	article
author	V. N. Egorov N. I. Bobko Yu. G. Marchenko S. Ye. Sadogurskiy
author_facet	V. N. Egorov N. I. Bobko Yu. G. Marchenko S. Ye. Sadogurskiy
author_sort	V. N. Egorov
title	Content of nutrients and limitation of phytoplankton primary production in the specially protected natural area “Cape Martyan” (Black Sea)
title_short	Content of nutrients and limitation of phytoplankton primary production in the specially protected natural area “Cape Martyan” (Black Sea)
title_full	Content of nutrients and limitation of phytoplankton primary production in the specially protected natural area “Cape Martyan” (Black Sea)
title_fullStr	Content of nutrients and limitation of phytoplankton primary production in the specially protected natural area “Cape Martyan” (Black Sea)
title_full_unstemmed	Content of nutrients and limitation of phytoplankton primary production in the specially protected natural area “Cape Martyan” (Black Sea)
title_sort	content of nutrients and limitation of phytoplankton primary production in the specially protected natural area “cape martyan” (black sea)
publisher	A. O. Kovalevsky Institute of Biology of the Southern Seas of RAS
publishDate	2021
url	https://doaj.org/article/65705acb99584c0caa85b232a67deb11
work_keys_str_mv	AT vnegorov contentofnutrientsandlimitationofphytoplanktonprimaryproductioninthespeciallyprotectednaturalareacapemartyanblacksea AT nibobko contentofnutrientsandlimitationofphytoplanktonprimaryproductioninthespeciallyprotectednaturalareacapemartyanblacksea AT yugmarchenko contentofnutrientsandlimitationofphytoplanktonprimaryproductioninthespeciallyprotectednaturalareacapemartyanblacksea AT syesadogurskiy contentofnutrientsandlimitationofphytoplanktonprimaryproductioninthespeciallyprotectednaturalareacapemartyanblacksea
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Content of nutrients and limitation of phytoplankton primary production in the specially protected natural area “Cape Martyan” (Black Sea)

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