Large-scale climate forcing linked to phytoplankton biomass variability in the Northwest Atlantic ...
No abstracts are to be cited without prior reference to the author. Phytoplankton are the base of the marine food web and a recent study of Large Marine Ecosystems (LMEs) worldwide suggested that high fisheries yield is associated with high surface chlorophyll-a (chl-a), a proxy for phytoplankton bi...
| Main Authors: | , , , , , |
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| Format: | Conference Object |
| Language: | unknown |
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ASC 2013 - Theme session M
2024
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| Online Access: | https://dx.doi.org/10.17895/ices.pub.24753780 https://ices-library.figshare.com/articles/conference_contribution/Large-scale_climate_forcing_linked_to_phytoplankton_biomass_variability_in_the_Northwest_Atlantic/24753780 |
| Summary: | No abstracts are to be cited without prior reference to the author. Phytoplankton are the base of the marine food web and a recent study of Large Marine Ecosystems (LMEs) worldwide suggested that high fisheries yield is associated with high surface chlorophyll-a (chl-a), a proxy for phytoplankton biomass. Here we analyzed satellite-derived chl-a from two different sensors (SeaWiFS & MODIS) at two different time-periods (1997-2010 & 2002-2012) covering the region of the United States Northeast Shelf Large Marine Ecosystem (U.S. NES LME) and off-shelf waters. We conducted an empirical orthogonal function (EOF) analysis of 1-km chl-a data that was post-processed using a regional algorithm to improve chl-a estimates in case-2 waters close to coastlines. We identified areas within the U.S. NES LME that had the strongest interannual variability of chl-a and analyzed relationships to large-scale climate forcing and local forcing (i.e. SST, nutrients, surface winds). The local mechanistic underpinnings that ... |
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