Spatial and temporal variability of sea surface temperature and fisheries distribution with the North Atlantic Oscillation
Increasing evidence supports relationships between fisheries distribution and climate variability. The main driver of climate variability in the North Atlantic Ocean is the North Atlantic Oscillation (NAO). Fisheries distribution is influenced by sea surface temperature (SST), which displays a dynam...
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ftdukeunivdsp:oai:localhost:10161/8521 2023-11-12T04:21:46+01:00 Spatial and temporal variability of sea surface temperature and fisheries distribution with the North Atlantic Oscillation Griefen, Ana Bonamusa, Jessica Nowacek, Douglas Boustany, Dr Andre 2014-04-24 application/pdf https://hdl.handle.net/10161/8521 unknown https://hdl.handle.net/10161/8521 climate variability North Atlantic Oscillation Master's project 2014 ftdukeunivdsp 2023-10-17T09:38:46Z Increasing evidence supports relationships between fisheries distribution and climate variability. The main driver of climate variability in the North Atlantic Ocean is the North Atlantic Oscillation (NAO). Fisheries distribution is influenced by sea surface temperature (SST), which displays a dynamic relationship with the NAO. To assess these relationships, we conducted a spatial and temporal analysis of SST, fisheries distribution, and the NAO from 1986 to 2008 in the Northwest Atlantic and Gulf of Mexico. We conducted a pixel-level linear regression analysis with the USGS Curve Fit tool in ArcMap to examine the spatial patterns of correlation coefficients and goodness of fit between monthly SST and monthly NAO index. We identified five regions in the Northwest Atlantic, and two regions in the Gulf of Mexico, where coefficients demonstrated relatively significant correlation between SST and the NAO. These regions were consistent with local ocean circulation patterns. To assess the relationship between the NAO and fisheries distribution in the identified correlation regions, we calculated linear regressions between tuna and swordfish catches and effort distribution with the NAO as the explanatory variable. Our results suggest that our linear model with the NAO as the single explanatory variable was too simplistic to explain fisheries catch and distribution variability. Further study using different models and explanatory variables may elucidate significant relationships between SST, fisheries distribution, and the NAO. Trends between fisheries and the NAO may provide insight into future effects of climate change on fish stocks with implications for fisheries management. Master Thesis North Atlantic North Atlantic oscillation Northwest Atlantic Duke University Libraries: DukeSpace |
institution |
Open Polar |
collection |
Duke University Libraries: DukeSpace |
op_collection_id |
ftdukeunivdsp |
language |
unknown |
topic |
climate variability North Atlantic Oscillation |
spellingShingle |
climate variability North Atlantic Oscillation Griefen, Ana Bonamusa, Jessica Spatial and temporal variability of sea surface temperature and fisheries distribution with the North Atlantic Oscillation |
topic_facet |
climate variability North Atlantic Oscillation |
description |
Increasing evidence supports relationships between fisheries distribution and climate variability. The main driver of climate variability in the North Atlantic Ocean is the North Atlantic Oscillation (NAO). Fisheries distribution is influenced by sea surface temperature (SST), which displays a dynamic relationship with the NAO. To assess these relationships, we conducted a spatial and temporal analysis of SST, fisheries distribution, and the NAO from 1986 to 2008 in the Northwest Atlantic and Gulf of Mexico. We conducted a pixel-level linear regression analysis with the USGS Curve Fit tool in ArcMap to examine the spatial patterns of correlation coefficients and goodness of fit between monthly SST and monthly NAO index. We identified five regions in the Northwest Atlantic, and two regions in the Gulf of Mexico, where coefficients demonstrated relatively significant correlation between SST and the NAO. These regions were consistent with local ocean circulation patterns. To assess the relationship between the NAO and fisheries distribution in the identified correlation regions, we calculated linear regressions between tuna and swordfish catches and effort distribution with the NAO as the explanatory variable. Our results suggest that our linear model with the NAO as the single explanatory variable was too simplistic to explain fisheries catch and distribution variability. Further study using different models and explanatory variables may elucidate significant relationships between SST, fisheries distribution, and the NAO. Trends between fisheries and the NAO may provide insight into future effects of climate change on fish stocks with implications for fisheries management. |
author2 |
Nowacek, Douglas Boustany, Dr Andre |
format |
Master Thesis |
author |
Griefen, Ana Bonamusa, Jessica |
author_facet |
Griefen, Ana Bonamusa, Jessica |
author_sort |
Griefen, Ana |
title |
Spatial and temporal variability of sea surface temperature and fisheries distribution with the North Atlantic Oscillation |
title_short |
Spatial and temporal variability of sea surface temperature and fisheries distribution with the North Atlantic Oscillation |
title_full |
Spatial and temporal variability of sea surface temperature and fisheries distribution with the North Atlantic Oscillation |
title_fullStr |
Spatial and temporal variability of sea surface temperature and fisheries distribution with the North Atlantic Oscillation |
title_full_unstemmed |
Spatial and temporal variability of sea surface temperature and fisheries distribution with the North Atlantic Oscillation |
title_sort |
spatial and temporal variability of sea surface temperature and fisheries distribution with the north atlantic oscillation |
publishDate |
2014 |
url |
https://hdl.handle.net/10161/8521 |
genre |
North Atlantic North Atlantic oscillation Northwest Atlantic |
genre_facet |
North Atlantic North Atlantic oscillation Northwest Atlantic |
op_relation |
https://hdl.handle.net/10161/8521 |
_version_ |
1782337044776747008 |