Coupling between interannual fluctuations of the sea surface temperature and zooplankton biomass in the tropical Atlantic Ocean

V. N. Eremeev; A. N. Jukov; S. A. Piontkovski; A. A. Sizov

doi:10.1080/00207230902731920

Coupling between interannual fluctuations of the sea surface temperature and zooplankton biomass in the tropical Atlantic Ocean

V. N. Eremeev, A. N. Jukov, S. A. Piontkovski, A. A. Sizov

Marine Science and Fisheries

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Interannual fluctuations of the sea surface temperature (SST) were analysed for the Northern Tropical Atlantic. Two patterns were noticed: a positive interannual trend (from 1960s to 1990s) and fluctuations of SST anomalies with a period from two to eight years, possibly formed by interannual dynamics of the Northern Subtropical Gyre. These dynamics were featured by the Subtropical Temperature Index (STI) revealing the meridional gradient of the SST anomalies between the Sargasso Sea and the Northern Tropical Atlantic. Being employed for a relatively short time series, STI has enabled us to evaluate an event of a sign change in SST anomalies. At STI≥1, positive SST anomalies and negative anomalies of nutrient concentration and zooplankton biomass take place. This qualitative ratio gets reversed at STI≤-1. Overall, interannual decline of zooplankton biomass (from 1960s to 1990s) has been accompanied by a positive trend of SST.

Original language	English
Pages (from-to)	539-546
Number of pages	8
Journal	International Journal of Environmental Studies
Volume	66
Issue number	5
DOIs	https://doi.org/10.1080/00207230902731920
Publication status	Published - Oct 2009

Keywords

Atlantic Ocean
North Atlantic oscillation
Surface temperature
Zooplankton

ASJC Scopus subject areas

Geography, Planning and Development
Ecology
Waste Management and Disposal
Pollution
Computers in Earth Sciences

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10.1080/00207230902731920

Cite this

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title = "Coupling between interannual fluctuations of the sea surface temperature and zooplankton biomass in the tropical Atlantic Ocean",

abstract = "Interannual fluctuations of the sea surface temperature (SST) were analysed for the Northern Tropical Atlantic. Two patterns were noticed: a positive interannual trend (from 1960s to 1990s) and fluctuations of SST anomalies with a period from two to eight years, possibly formed by interannual dynamics of the Northern Subtropical Gyre. These dynamics were featured by the Subtropical Temperature Index (STI) revealing the meridional gradient of the SST anomalies between the Sargasso Sea and the Northern Tropical Atlantic. Being employed for a relatively short time series, STI has enabled us to evaluate an event of a sign change in SST anomalies. At STI≥1, positive SST anomalies and negative anomalies of nutrient concentration and zooplankton biomass take place. This qualitative ratio gets reversed at STI≤-1. Overall, interannual decline of zooplankton biomass (from 1960s to 1990s) has been accompanied by a positive trend of SST.",

keywords = "Atlantic Ocean, North Atlantic oscillation, Surface temperature, Zooplankton",

author = "Eremeev, {V. N.} and Jukov, {A. N.} and Piontkovski, {S. A.} and Sizov, {A. A.}",

note = "Funding Information: We are much obliged to our colleagues: L. Galkovskaya, S. Ignatyev, R.P. Harris, J.A. Isla and C. Castellani for providing or assembling data on physical, chemical and zooplankton sampling. This research was partially supported by the EUR-OCEANS grant.",

year = "2009",

month = oct,

doi = "10.1080/00207230902731920",

language = "English",

volume = "66",

pages = "539--546",

journal = "International Journal of Environmental Studies",

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T1 - Coupling between interannual fluctuations of the sea surface temperature and zooplankton biomass in the tropical Atlantic Ocean

AU - Eremeev, V. N.

AU - Jukov, A. N.

AU - Piontkovski, S. A.

AU - Sizov, A. A.

N1 - Funding Information: We are much obliged to our colleagues: L. Galkovskaya, S. Ignatyev, R.P. Harris, J.A. Isla and C. Castellani for providing or assembling data on physical, chemical and zooplankton sampling. This research was partially supported by the EUR-OCEANS grant.

PY - 2009/10

Y1 - 2009/10

N2 - Interannual fluctuations of the sea surface temperature (SST) were analysed for the Northern Tropical Atlantic. Two patterns were noticed: a positive interannual trend (from 1960s to 1990s) and fluctuations of SST anomalies with a period from two to eight years, possibly formed by interannual dynamics of the Northern Subtropical Gyre. These dynamics were featured by the Subtropical Temperature Index (STI) revealing the meridional gradient of the SST anomalies between the Sargasso Sea and the Northern Tropical Atlantic. Being employed for a relatively short time series, STI has enabled us to evaluate an event of a sign change in SST anomalies. At STI≥1, positive SST anomalies and negative anomalies of nutrient concentration and zooplankton biomass take place. This qualitative ratio gets reversed at STI≤-1. Overall, interannual decline of zooplankton biomass (from 1960s to 1990s) has been accompanied by a positive trend of SST.

AB - Interannual fluctuations of the sea surface temperature (SST) were analysed for the Northern Tropical Atlantic. Two patterns were noticed: a positive interannual trend (from 1960s to 1990s) and fluctuations of SST anomalies with a period from two to eight years, possibly formed by interannual dynamics of the Northern Subtropical Gyre. These dynamics were featured by the Subtropical Temperature Index (STI) revealing the meridional gradient of the SST anomalies between the Sargasso Sea and the Northern Tropical Atlantic. Being employed for a relatively short time series, STI has enabled us to evaluate an event of a sign change in SST anomalies. At STI≥1, positive SST anomalies and negative anomalies of nutrient concentration and zooplankton biomass take place. This qualitative ratio gets reversed at STI≤-1. Overall, interannual decline of zooplankton biomass (from 1960s to 1990s) has been accompanied by a positive trend of SST.

KW - Atlantic Ocean

KW - North Atlantic oscillation

KW - Surface temperature

KW - Zooplankton

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Coupling between interannual fluctuations of the sea surface temperature and zooplankton biomass in the tropical Atlantic Ocean

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Keywords

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