Transatlantic Abundance of the N2-Fixing Colonial Cyanobacterium Trichodesmium

by: Cabell S Davis, Dennis J Mcgillicuddy

Science, Vol. 312, No. 5779. (9 June 2006), pp. 1517-1520.

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Abstract

Colonial diazotrophic cyanobacteria of the genus Trichodesmium are thought to play a significant role in the input of new nitrogen to upper layers of the tropical and subtropical oceanic ecosystems that cover nearly half of Earth's surface. Here we describe results of a transatlantic survey in which a noninvasive underwater digital microscope (the video plankton recorder), was towed across the North Atlantic at 6 meters per second while undulating between the surface and 130 meters. Colony abundance had a basin-scale trend, a clear association with anticyclonic eddies, and was not affected by hurricane-forced mixing. Subsurface abundance was higher than previously reported, which has important implications for the global ocean nitrogen cycle. 10.1126/science.1123570

@article{citeulike:2735475, abstract = {Colonial diazotrophic cyanobacteria of the genus Trichodesmium are thought to play a significant role in the input of new nitrogen to upper layers of the tropical and subtropical oceanic ecosystems that cover nearly half of Earth's surface. Here we describe results of a transatlantic survey in which a noninvasive underwater digital microscope (the video plankton recorder), was towed across the North Atlantic at 6 meters per second while undulating between the surface and 130 meters. Colony abundance had a basin-scale trend, a clear association with anticyclonic eddies, and was not affected by hurricane-forced mixing. Subsurface abundance was higher than previously reported, which has important implications for the global ocean nitrogen cycle. 10.1126/science.1123570}, author = {Davis, Cabell S. and Mcgillicuddy, Dennis J. }, citeulike-article-id = {2735475}, doi = {http://dx.doi.org/10.1126/science.1123570}, journal = {Science}, keywords = {n2, phytoplankton}, month = {June}, number = {5779}, pages = {1517--1520}, posted-at = {2008-04-29 22:21:28}, priority = {2}, title = {Transatlantic Abundance of the N2-Fixing Colonial Cyanobacterium Trichodesmium}, url = {http://dx.doi.org/10.1126/science.1123570}, volume = {312}, year = {2006} }

RIS record

TY - JOUR ID - citeulike:2735475 L3 - citeulike-article-id:2735475 N2 - Colonial diazotrophic cyanobacteria of the genus Trichodesmium are thought to play a significant role in the input of new nitrogen to upper layers of the tropical and subtropical oceanic ecosystems that cover nearly half of Earth's surface. Here we describe results of a transatlantic survey in which a noninvasive underwater digital microscope (the video plankton recorder), was towed across the North Atlantic at 6 meters per second while undulating between the surface and 130 meters. Colony abundance had a basin-scale trend, a clear association with anticyclonic eddies, and was not affected by hurricane-forced mixing. Subsurface abundance was higher than previously reported, which has important implications for the global ocean nitrogen cycle. 10.1126/science.1123570 IS - 5779 JF - Science EP - 1520 TI - Transatlantic Abundance of the N2-Fixing Colonial Cyanobacterium Trichodesmium VL - 312 SP - 1517 KW - n2 KW - phytoplankton AU - Davis, Cabell AU - Mcgillicuddy, Dennis PY - 2006/06/09/ UR - http://dx.doi.org/10.1126/science.1123570 ER -

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