Балл 15
Число соавторов публикации - 4
Целевой показатель госзадания:
Целевой показатель госзадания:
- Рецензируемые научные статьи в периодических журналах, индексируемых в WEB of Science (WoS) - Q1 - Формула: 30/корень квадратный из Nавторов = 30/корень квадратный из 4 (2) = 15
- Рецензируемые научные статьи в периодических журналах, индексируемых в SCOPUS - Q1 - Формула: 12/корень квадратный из Nавторов = 12/корень квадратный из 4 (2) = 6
КБПР (методика 2025 г.) = 5
Количество соавторов публикации - 4
Публикация в изданиях из Белого списка уровень: 1, K=20
Публикация в изданиях из Белого списка уровень: 1, K=20
-
Сергеева А. В.: количество аффилиаций - 1, вклад в КБПР публикации:
формула: K/(Nсоавторов*Nаффил) = 20/(4*1) = 5
Статья в периодическом издании
Long-term changes in the deep chlorophyll maximum and primary production in the deep-water basin of the Black Sea
| DOI | https://doi.org/10.1016/j.jmarsys.2025.104169 |
|---|---|
| Язык | Английский |
| Журнал | Journal of Marine Systems ISSN: 0924-7963; Онлайн ISSN: 1879-1573 |
| Год | 2025 |
| Выходные данные | том: 253; статья: 104169; страниц (электронный ресурс): 11 |
| Авторы | |
| Даты |
Поступила в редакцию: 01.06.2024 После доработки: 14.05.2025 Принята к публикации: 05.12.2025 Опубликована онлайн: 06.12.2025 |
| Абстракт | Long-term changes in the deep chlorophyll maximum (DCM) and the depth-integrated primary production (PP) in the Black Sea deep basin from 1953 to 2021 were analysed. The changes were compared with alterations in water transparency, nitrate concentration in the deep maximum (NO3-max), its depth and the intensity of winter convection affecting the nutrient supply in the upper layer through the year. A regression between the light attenuation coefficient and the Secchi disk depth was constructed based on field data obtained over the past two decades. The regression differed from that constructed using data before 1989. Both regressions were used to reconstruct long-term changes in the euphotic zone depth. Over 68 years, in the stratified period from April to October, it varied from 21 to 43 m. The annual mean DCM depth ranged from 18 to 55 m and was, in most cases, confined to a depth of 1–2 % of the surface photosynthetically available radiation. The long-term dynamics of annual means of DCM and PP DCM and PP generally corresponded to the change in NO3-max. These variables were significantly correlated with NO3-max, supporting the hypothesis that NO3-max variations altered the nitrate gradient and, consequently, its upward flux into the photic zone, primarily consumed by DCM. At the same time, long-term changes in DCM and PP were also influenced by winter convection, affecting the nutrient supply in the upper layer and the macro-hydrodynamics of the Black Sea throughout the year. After a peak in eutrophication in the mid-1980s and a decline after the mid-1990s, NO3-max began to rise again in the last decade, indicating a new increase in eutrophication. The increasing trends in NO3-max and DCM and an increase in phytoplankton biomass, primarily due to diatoms, support this assumption. Ключевые слова: deep chlorophyll maximum, primary production, water transparency, nitrate maximum, winter convection, eutrophication Black Sea |
| Сведения о финансировании, указанные в публикации | Authors are grateful to Dr. Anna Yushmanova for her assistance in using the Argo float data. This research was conducted within the framework of the state assignment FMWE-2024-0023 (collection and processing of the recent data) and was supported by the Russian Science Foundation: grant No 23-17-00056 (long-term analysis, Argo float database, impact of hydrophysical processes on phytoplankton). |
| URL | https://www.sciencedirect.com/science/article/pii/S0924796325001320 |
| Дополнительные сведения |
Запись создана: 11-02-2026 13:30
Последнее изменение: 13-03-2026 10:35
Библиографическая ссылка:
Mosharov S. A., Mikaelyan A. S., Sergeeva A. V., Gagarin V. I. Long-term changes in the deep chlorophyll maximum and primary production in the deep-water basin of the Black Sea // Journal of Marine Systems. 2025. Vol. 253. Art. no. 104169 (11 p.). https://doi.org/10.1016/j.jmarsys.2025.104169
[WoS 2.500/Q1][SCOPUS 0.945/Q1][БС 1]
Mosharov S. A., Mikaelyan A. S., Sergeeva A. V., Gagarin V. I. Long-term changes in the deep chlorophyll maximum and primary production in the deep-water basin of the Black Sea // Journal of Marine Systems. 2025. Vol. 253. Art. no. 104169 (11 p.). https://doi.org/10.1016/j.jmarsys.2025.104169
[WoS 2.500/Q1][SCOPUS 0.945/Q1][БС 1]
Экспертное заключение: № 14, 2026
Белый список
Индексация на момент включения в базу:- Уровень БС
- 1
Web of Science
- Статус
- Да
- Импакт-фактор/Квартиль(год)
- 2.500/Q1 (2024)
- Идентификатор
- 001648145200001
- Статус
- Да
- Импакт-фактор/Квартиль(год)
- 0.945/Q1 (2024)
- Идентификатор
- 2-s2.0-105025019650