SS1.06 The Ecological Impacts of Pelagic Longline Fisheries
Date: Wednesday, June 12, 2002
Location: Poster Session - VCC
 
RilovG, Duke University, Beaufort, USA, gr3@duke.edu
Hyrenbach, D, , Duke University, Beaufort, USA, khyrenba@earthlink.net
D'Agrosa, C, , Duke University, Beaufort, USA, ced@duke.edu
Crowder, L, , Duke University, Beaufort, USA, lcrowder@duke.edu
 
OCEANOGRAPHIC FEATURES AND PELAGIC MACROFAUNA: SPATIO-TEMPORAL VARIABILITY IN LONGLINE CATCH ASSEMBLAGES
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Information on the spatio-temporal variability in pelagic macrofauna is scarce but important, both for sustainability of the fishing industry and for conservation of these communities. We used records from the longline observer program (Hawaii 1994-1999, Atlantic 1992-1999) coupled with oceanographic data to examine the diversity of catch/bycatch assemblages and its association with oceanographic features using GIS and uni-/multivariate analysis. We found that species diversity is strongly related to the species targeted, varies temporally and geographically, and influenced by static and dynamic oceanic habitats. Moreover, distinct assemblages appear to be associated with specific oceanographic features and with time of year, suggesting that a dynamic fisheries management approach is required.