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Interannual changes of the Arabian Sea productivity
Piontkovski, S.A.; Claereboudt, M.R. (2012). Interannual changes of the Arabian Sea productivity. Mar. Biol. Res. 8(2): 189-194. dx.doi.org/10.1080/17451000.2011.615325
In: Marine Biology Research. Taylor & Francis: Oslo. ISSN 1745-1000, more
Peer reviewed article

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Keywords
    Chlorophylls; Ecosystems; ISW, Arabian Sea [gazetteer]; Marine

Authors  Top 
  • Piontkovski, S.A., more
  • Claereboudt, M.R.

Abstract
    Inter-annual changes in temperature and chlorophyll a across the Arabian Sea (subdivided into 61 2-degree regions) were analysed. For each 2-degree region, from appropriate databases, remotely sensed chlorophyll a, sea surface temperature, and wind speed time series were retrieved. Spatial and temporal trend analysis showed physical–biological oscillations with dominant periods of 12 and 6 months (reflecting the seasonality of monsoonal winds) with a globally warming trend, but no overall increase in chlorophyll during the period 1997–2009. Variation coefficients of the inter-annual time series of chlorophyll a implied high variability in western regions of the sea in comparison to eastern regions. The basin-wide maps of chlorophyll distribution did not show the enlargement of the productive area over time and overall, not only did the Arabian Sea not get more productive, but several regions in its eastern basin showed a decline in chlorophyll a concentration.

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