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| Regaudie-de-gioux, Aurore; Vaquer-sunyer, R.; Duarte, C. M.. |
| Planktonic gross community production (GPP), net community production (NCP) and community respiration (CR) across the Mediterranean Sea was examined in two cruises, Thresholds 2006 and 2007, each crossing the Mediterranean from West to East to test for consistent variation along this longitudinal gradient in late spring to early summer. GPP averaged 2.4 +/- 0.4 mmol O(2) m(-3) d(-1), CR averaged 3.8 +/- 0.5 mmol O(2) m(-3) d(-1), and NCP averaged - 0.8 +/- 0.6 mmol O(2) m(-3) d(-1) across the studied sections, indicative of a tendency for a net heterotrophic metabolism in late spring to early summer, prevalent across studied sections of the Mediterranean Sea as reflected in 70% of negative NCP estimates. The median P/R ratio was 0.6, also indicating a... |
| Tipo: Text |
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| Ano: 2009 |
URL: https://archimer.ifremer.fr/doc/00419/53083/54009.pdf |
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| Vaquer-sunyer, R.; Duarte, C. M.; Regaudie-de-gioux, Aurore; Holding, J.; Garcia-corral, L. S.; Reigstad, M.; Wassmann, P.. |
| The metabolism of the Arctic Ocean is marked by extremely pronounced seasonality and spatial heterogeneity associated with light conditions, ice cover, water masses and nutrient availability. Here we report the marine planktonic metabolic rates (net community production, gross primary production and community respiration) along three different seasons of the year, for a total of eight cruises along the western sector of the European Arctic (Fram Strait - Svalbard region) in the Arctic Ocean margin: one at the end of 2006 (fall/winter), two in 2007 (early spring and summer), two in 2008 (early spring and summer), one in 2009 (late spring-early summer), one in 2010 (spring) and one in 2011 (spring). The results show that the metabolism of the western sector... |
| Tipo: Text |
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| Ano: 2013 |
URL: https://archimer.ifremer.fr/doc/00419/53077/54027.pdf |
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