Environmental Influences on Juvenile Fish Abundances in a River-Dominated Coastal System
We investigated the influence of climatic and environmental factors on variations in juvenile abundances of marine fishes in a river-dominated coastal system of the north-central Gulf of Mexico, where an elevated primary productivity sustains fisheries of high economic importance. Fish were collecte...
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2011
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Online Access: | https://jagworks.southalabama.edu/usa_faculty_staff_pubs/87 https://doi.org/10.1080/19425120.2011.642492 https://jagworks.southalabama.edu/context/usa_faculty_staff_pubs/article/1065/viewcontent/Carassou_et_al.__2011_Environmental_influences_on_juvenile_fish_abundances_in_a_river.pdf |
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ftunsouthalabama:oai:jagworks.southalabama.edu:usa_faculty_staff_pubs-1065 2023-07-02T03:33:06+02:00 Environmental Influences on Juvenile Fish Abundances in a River-Dominated Coastal System Carassou, Laure Dzwonkowski, Brian Hernandez, Jr., Frank J. Powers, Sean P. Graham, William M. Park, Kyeong Mareska, John 2011-12-01T08:00:00Z application/pdf https://jagworks.southalabama.edu/usa_faculty_staff_pubs/87 https://doi.org/10.1080/19425120.2011.642492 https://jagworks.southalabama.edu/context/usa_faculty_staff_pubs/article/1065/viewcontent/Carassou_et_al.__2011_Environmental_influences_on_juvenile_fish_abundances_in_a_river.pdf unknown JagWorks@USA https://jagworks.southalabama.edu/usa_faculty_staff_pubs/87 doi:10.1080/19425120.2011.642492 https://jagworks.southalabama.edu/context/usa_faculty_staff_pubs/article/1065/viewcontent/Carassou_et_al.__2011_Environmental_influences_on_juvenile_fish_abundances_in_a_river.pdf University Faculty and Staff Publications juvenile abundance marine fishes interannual variations Gulf of Mexico seasonality river discharge Animal Sciences Aquaculture and Fisheries Biodiversity Ecology and Evolutionary Biology Environmental Sciences Life Sciences Marine Biology Natural Resources and Conservation Natural Resources Management and Policy Oceanography Oceanography and Atmospheric Sciences and Meteorology Population Biology Terrestrial and Aquatic Ecology text 2011 ftunsouthalabama https://doi.org/10.1080/19425120.2011.642492 2023-06-13T18:29:27Z We investigated the influence of climatic and environmental factors on variations in juvenile abundances of marine fishes in a river-dominated coastal system of the north-central Gulf of Mexico, where an elevated primary productivity sustains fisheries of high economic importance. Fish were collected monthly with an otter trawl at three stations near Mobile Bay from 1982 to 2007. Fish sizes were used to isolate juvenile stages within the data set, and monthly patterns in juvenile fish abundance and size were then used to identify seasonal peaks for each species. The average numbers of juvenile fish collected during these seasonal peaks in each year were used as indices of annual juvenile abundances and were related to corresponding seasonal averages of selected environmental factors via a combination of principal components analysis and co-inertia analysis. Factors contributing the most to explain interannual variations in juvenile fish abundances were river discharge and water temperature during early spring–early summer, wind speed and North Atlantic Oscillation index during late fall–winter, and atmospheric pressure and wind speed during summer–fall. For example, juvenile abundances of southern kingfish Menticirrhus americanus during summer–fall were positively associated with atmospheric pressure and negatively associated with wind speed during this period. Southern kingfish juvenile abundances during late fall–winter were also negatively associated with wind speed during the same period and were positively associated with river discharge during early spring–early summer. Juvenile abundances of the Atlantic croaker Micropogonias undulatus during early spring–early summer were negatively associated with river discharge and North Atlantic Oscillation during late fall–winter. Overall, the importance of river discharge for many of the species examined emphasizes the major role of watershed processes for marine fisheries production in coastal waters of the north-central Gulf of Mexico. Text North Atlantic North Atlantic oscillation JagWorks@USA (University of South Alabama Institutional Repository) Marine and Coastal Fisheries 3 1 411 427 |
institution |
Open Polar |
collection |
JagWorks@USA (University of South Alabama Institutional Repository) |
op_collection_id |
ftunsouthalabama |
language |
unknown |
topic |
juvenile abundance marine fishes interannual variations Gulf of Mexico seasonality river discharge Animal Sciences Aquaculture and Fisheries Biodiversity Ecology and Evolutionary Biology Environmental Sciences Life Sciences Marine Biology Natural Resources and Conservation Natural Resources Management and Policy Oceanography Oceanography and Atmospheric Sciences and Meteorology Population Biology Terrestrial and Aquatic Ecology |
spellingShingle |
juvenile abundance marine fishes interannual variations Gulf of Mexico seasonality river discharge Animal Sciences Aquaculture and Fisheries Biodiversity Ecology and Evolutionary Biology Environmental Sciences Life Sciences Marine Biology Natural Resources and Conservation Natural Resources Management and Policy Oceanography Oceanography and Atmospheric Sciences and Meteorology Population Biology Terrestrial and Aquatic Ecology Carassou, Laure Dzwonkowski, Brian Hernandez, Jr., Frank J. Powers, Sean P. Graham, William M. Park, Kyeong Mareska, John Environmental Influences on Juvenile Fish Abundances in a River-Dominated Coastal System |
topic_facet |
juvenile abundance marine fishes interannual variations Gulf of Mexico seasonality river discharge Animal Sciences Aquaculture and Fisheries Biodiversity Ecology and Evolutionary Biology Environmental Sciences Life Sciences Marine Biology Natural Resources and Conservation Natural Resources Management and Policy Oceanography Oceanography and Atmospheric Sciences and Meteorology Population Biology Terrestrial and Aquatic Ecology |
description |
We investigated the influence of climatic and environmental factors on variations in juvenile abundances of marine fishes in a river-dominated coastal system of the north-central Gulf of Mexico, where an elevated primary productivity sustains fisheries of high economic importance. Fish were collected monthly with an otter trawl at three stations near Mobile Bay from 1982 to 2007. Fish sizes were used to isolate juvenile stages within the data set, and monthly patterns in juvenile fish abundance and size were then used to identify seasonal peaks for each species. The average numbers of juvenile fish collected during these seasonal peaks in each year were used as indices of annual juvenile abundances and were related to corresponding seasonal averages of selected environmental factors via a combination of principal components analysis and co-inertia analysis. Factors contributing the most to explain interannual variations in juvenile fish abundances were river discharge and water temperature during early spring–early summer, wind speed and North Atlantic Oscillation index during late fall–winter, and atmospheric pressure and wind speed during summer–fall. For example, juvenile abundances of southern kingfish Menticirrhus americanus during summer–fall were positively associated with atmospheric pressure and negatively associated with wind speed during this period. Southern kingfish juvenile abundances during late fall–winter were also negatively associated with wind speed during the same period and were positively associated with river discharge during early spring–early summer. Juvenile abundances of the Atlantic croaker Micropogonias undulatus during early spring–early summer were negatively associated with river discharge and North Atlantic Oscillation during late fall–winter. Overall, the importance of river discharge for many of the species examined emphasizes the major role of watershed processes for marine fisheries production in coastal waters of the north-central Gulf of Mexico. |
format |
Text |
author |
Carassou, Laure Dzwonkowski, Brian Hernandez, Jr., Frank J. Powers, Sean P. Graham, William M. Park, Kyeong Mareska, John |
author_facet |
Carassou, Laure Dzwonkowski, Brian Hernandez, Jr., Frank J. Powers, Sean P. Graham, William M. Park, Kyeong Mareska, John |
author_sort |
Carassou, Laure |
title |
Environmental Influences on Juvenile Fish Abundances in a River-Dominated Coastal System |
title_short |
Environmental Influences on Juvenile Fish Abundances in a River-Dominated Coastal System |
title_full |
Environmental Influences on Juvenile Fish Abundances in a River-Dominated Coastal System |
title_fullStr |
Environmental Influences on Juvenile Fish Abundances in a River-Dominated Coastal System |
title_full_unstemmed |
Environmental Influences on Juvenile Fish Abundances in a River-Dominated Coastal System |
title_sort |
environmental influences on juvenile fish abundances in a river-dominated coastal system |
publisher |
JagWorks@USA |
publishDate |
2011 |
url |
https://jagworks.southalabama.edu/usa_faculty_staff_pubs/87 https://doi.org/10.1080/19425120.2011.642492 https://jagworks.southalabama.edu/context/usa_faculty_staff_pubs/article/1065/viewcontent/Carassou_et_al.__2011_Environmental_influences_on_juvenile_fish_abundances_in_a_river.pdf |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
University Faculty and Staff Publications |
op_relation |
https://jagworks.southalabama.edu/usa_faculty_staff_pubs/87 doi:10.1080/19425120.2011.642492 https://jagworks.southalabama.edu/context/usa_faculty_staff_pubs/article/1065/viewcontent/Carassou_et_al.__2011_Environmental_influences_on_juvenile_fish_abundances_in_a_river.pdf |
op_doi |
https://doi.org/10.1080/19425120.2011.642492 |
container_title |
Marine and Coastal Fisheries |
container_volume |
3 |
container_issue |
1 |
container_start_page |
411 |
op_container_end_page |
427 |
_version_ |
1770272916695416832 |