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dc.contributor.authorLOHRENZ, SEen_US
dc.contributor.authorCULLEN, JJen_US
dc.contributor.authorPHINNEY, DAen_US
dc.contributor.authorOLSON, DBen_US
dc.contributor.authorYENTSCH, CSen_US
dc.date.accessioned2013-06-19T17:55:58Z
dc.date.available2013-06-19T17:55:58Z
dc.date.issued1993-08en_US
dc.identifier.citationLOHRENZ, SE, JJ CULLEN, DA PHINNEY, DB OLSON, et al. 1993. "Distributions of Pigments and Primary Production in a Gulf-Stream Meander." Journal of Geophysical Research-Oceans 98(C8): 14545-14560. DOI:10.1029/93JC00678en_US
dc.identifier.issn0148-0227en_US
dc.identifier.urihttp://dx.doi.org/10.1029/93JC00678en_US
dc.identifier.urihttp://hdl.handle.net/10222/26444
dc.description.abstractAn investigation was made of physical effects of Gulf Stream meandering on the vertical and horizontal distributions of photosynthetic pigments and primary production. Cruises were conducted in the vicinity of a meander east of 73-degrees-W and north of 37-degrees-N from September 21 to October 5 (leg 1) and October 12-21, 1988 (leg 2), on the R/V Cape Hatteras. Relationships of photosynthesis (normalized to chlorophyll) to irradiance (P-1) did not show large horizontal variation, and water column composite P-I curves from leg 1 and leg 2 were similar. Therefore a single P-I curve derived from pooled data was used to model distributions of primary production. Distributions of photosynthetic pigments were characterized on the basis of in vivo fluorescence profiles and empirical relationships with extracted pigment concentrations. Subsurface irradiance was described using a spectral irradiance model. Cross sections of the Gulf Stream revealed consistently higher pigment concentrations and primary production on the slope water side. Along-stream variations in pigment distributions and primary production were apparently related to density structure influenced by meander circulation. Such variations were less pronounced during leg 2. which came after a transition from a well-defined meander interacting with a warm-core ring (leg 1) to a more linear stream (leg 2). Higher water-column-integrated primary production during leg 2 was attributed to mixing-induced nutrient injection and redistribution of chlorophyll in the photic zone.en_US
dc.relation.ispartofJournal of Geophysical Research-Oceansen_US
dc.titleDistributions of Pigments and Primary Production in a Gulf-Stream Meanderen_US
dc.typearticleen_US
dc.identifier.volume98en_US
dc.identifier.issue8en_US
dc.identifier.startpage14545en_US
dc.rights.holderThis paper was published by AGU. Copyright 1993 American Geophysical Union
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