ICES Journal of Marine Science Advance Access published August 21, 2012 ICES Journal of Marine Science ICES Journal of Marine Science; doi:10.1093/icesjms/fss142 Community N 2 fixation and Trichodesmium spp. abundance along longitudinal gradients in the e

• Main Authors: Ana Fernández, Rocío Graña, Beatriz Mouriño-carballido, Antonio Bode, Manuel Varela, J. Francisco Domínguez-yanes, José Escánez, Demetrio De Armas, Emilio Marañón
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 2012
• Subjects: North Atlantic
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.397.4175; http://webs.uvigo.es/em/fernandez_etal_ices_jms_2012.pdf

We have determined planktonic community N2 fixation, Trichodesmium abundance, the concentration and vertical diffusive flux of phosphate, and satellite-derived estimates of atmospheric concentration of dust along two longitudinal transects in the eastern subtropical North Atlantic during November 2007 and from April–May 2008. Trichodesmium abundance was particularly low (,3 trichome l 21) during the spring 2008 cruise, when low sea surface temperatures were recorded and vertical stratification was less marked. However, community N 2 fixation was always measurable, albeit low compared with other regions of the tropical Atlantic. The average