Links between biota and climate-related variables in the Baltic region using Lake Onega as an example
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作者:
Sharov, Andrey N.
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Russian Acad Sci, Northern Water Problems Inst, Karelian Res Ctr, Petrozavodsk 185030, Russia
Russian Acad Sci, St Petersburg Sci Res Ctr Ecol Safety, St Petersburg 197110, RussiaRussian Acad Sci, Northern Water Problems Inst, Karelian Res Ctr, Petrozavodsk 185030, Russia
Sharov, Andrey N.
[1
,2
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Berezina, Nadezhda A.
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Russian Acad Sci, Northern Water Problems Inst, Karelian Res Ctr, Petrozavodsk 185030, Russia
Russian Acad Sci, Inst Zool, St Petersburg 199034, RussiaRussian Acad Sci, Northern Water Problems Inst, Karelian Res Ctr, Petrozavodsk 185030, Russia
Berezina, Nadezhda A.
[1
,3
]
Nazarova, Larisa E.
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Russian Acad Sci, Northern Water Problems Inst, Karelian Res Ctr, Petrozavodsk 185030, RussiaRussian Acad Sci, Northern Water Problems Inst, Karelian Res Ctr, Petrozavodsk 185030, Russia
Nazarova, Larisa E.
[1
]
Poliakova, Tamara N.
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Russian Acad Sci, Northern Water Problems Inst, Karelian Res Ctr, Petrozavodsk 185030, RussiaRussian Acad Sci, Northern Water Problems Inst, Karelian Res Ctr, Petrozavodsk 185030, Russia
Poliakova, Tamara N.
[1
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Chekryzheva, Tatyana A.
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Russian Acad Sci, Northern Water Problems Inst, Karelian Res Ctr, Petrozavodsk 185030, RussiaRussian Acad Sci, Northern Water Problems Inst, Karelian Res Ctr, Petrozavodsk 185030, Russia
Chekryzheva, Tatyana A.
[1
]
机构:
[1] Russian Acad Sci, Northern Water Problems Inst, Karelian Res Ctr, Petrozavodsk 185030, Russia
[2] Russian Acad Sci, St Petersburg Sci Res Ctr Ecol Safety, St Petersburg 197110, Russia
[3] Russian Acad Sci, Inst Zool, St Petersburg 199034, Russia
This paper aims to reveal current changes (recent decades) in regional climatic variables like water temperature (WT), the duration of the ice-free period (ICE-FREE) and the precipitation rate (P), as exemplified by Petrozavodsk Bay (Lake Onega, European Russia), and to analyse their relationships with the global climatic indices NAO, AO and structural characteristics of biota (chlorophyll a concentration (Chl a), phytoplankton and zoobenthos abundance/biomass) in the lake ecosystem,. which lies within the Baltic Sea catchment area. Spearman's rank correlations yielded significant (p < 0.05) relationships between the NAO and planktonic Cyanobacteria abundance, and also between NAO, AO, WT, P and the abundance and biomass of zoobenthos. Chl a correlates positively (R = 0.66; p = 0.03) with WT and negatively with ICE-FREE (R = 0.53; p = 0.05). At the same time, multiple regression analysis confirmed that the global climate governs primarily the regional climatic variables and productivity level in the lake's ecosystem, whereas most of the biotic characteristics respond to variability in the regional climate.
机构:
Yunnan Univ, Inst Int Rivers & Ecosecur, Kunming 650091, Peoples R ChinaYunnan Univ, Inst Int Rivers & Ecosecur, Kunming 650091, Peoples R China
Zhu, Yu
Liu, Shiyin
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Yunnan Univ, Inst Int Rivers & Ecosecur, Kunming 650091, Peoples R ChinaYunnan Univ, Inst Int Rivers & Ecosecur, Kunming 650091, Peoples R China
Liu, Shiyin
Srivastava, Prashant K. K.
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Banaras Hindu Univ, Inst Environm & Sustainable Dev, Remote Sensing Lab, Varanasi 211005, IndiaYunnan Univ, Inst Int Rivers & Ecosecur, Kunming 650091, Peoples R China
Srivastava, Prashant K. K.
Dharpure, Jaydeo K. K.
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Banaras Hindu Univ, Inst Environm & Sustainable Dev, Remote Sensing Lab, Varanasi 211005, India
Indian Inst Technol Roorkee, Ctr Excellence Disaster Mitigat & Management, Roorkee 247667, IndiaYunnan Univ, Inst Int Rivers & Ecosecur, Kunming 650091, Peoples R China
Dharpure, Jaydeo K. K.
Chatterjee, Debrupa
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Deemed Univ, Symbiosis Int Univ, Symbiosis Inst Geoinformat, Pune 411004, IndiaYunnan Univ, Inst Int Rivers & Ecosecur, Kunming 650091, Peoples R China
Chatterjee, Debrupa
Sahu, Rakesh
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Indian Inst Technol, Remote Sensing Div, Hydroremote Sensing Applicat Grp, Mumbai 400076, IndiaYunnan Univ, Inst Int Rivers & Ecosecur, Kunming 650091, Peoples R China
Sahu, Rakesh
Gagnon, Alexandre S. S.
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Indian Inst Technol, Remote Sensing Div, Hydroremote Sensing Applicat Grp, Mumbai 400076, India
Liverpool John Moores Univ, Sch Biol & Environm Sci, Liverpool L3 3AF, EnglandYunnan Univ, Inst Int Rivers & Ecosecur, Kunming 650091, Peoples R China