Population connectivity of red drum in the northern Gulf of Mexico
Stable carbon (δ13C) and oxygen (δ18O) isotope ratios in otoliths were used to assess the degree of connectivity between early life and adult habitats of red drum Sciaenops ocellatus in the northern Gulf of Mexico. Young-of-the-year (YOY) red drum were sampled over a 3 yr period from major estuaries...
Published in: | Marine Ecology Progress Series |
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2010
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Online Access: | https://doi.org/10.3354/meps08605 |
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fttexasamucorpus:oai:tamucc-ir.tdl.org:1969.6/86983 2023-10-25T01:43:14+02:00 Population connectivity of red drum in the northern Gulf of Mexico Rooker, Jay R. Stunz, Gregory W. Holt, Scott A. Minello, Thomas J. 2010 application/pdf https://doi.org/10.3354/meps08605 unknown InterResearch 67LPZ5K6 https://doi.org/10.3354/meps08605 https://tamucc-ir.tdl.org/handle/1969.6/86983https://doi.org/10.3354/meps08605 text article 2010 fttexasamucorpus https://doi.org/10.3354/meps08605 2023-09-25T10:20:10Z Stable carbon (δ13C) and oxygen (δ18O) isotope ratios in otoliths were used to assess the degree of connectivity between early life and adult habitats of red drum Sciaenops ocellatus in the northern Gulf of Mexico. Young-of-the-year (YOY) red drum were sampled over a 3 yr period from major estuaries along the Texas coast, and otolith δ13C and δ18O were quantified to determine whether chemical tags in otoliths were region specific. North to south gradients were pronounced for otolith δ13C and δ18O, with values being higher (enriched in the heavier isotope) for YOY red drum from southern estuaries relative to those in the north. Four distinct regional groups of YOY red drum were identified using otolith δ13C and δ18O: North (N), Sabine Lake and East Galveston Bay; North-Central (NC), Christmas Bay and Matagorda Bay; South-Central (SC), Aransas Bay and Redfish Bay; and South (S), Laguna Madre. Overall classification success to these regional nurseries was high for each year examined: 2001 (92%), 2002 (82%) and 2003 (90%). Mixed-stock analysis performed with age-2+ red drum collected in 2003 matched to the 2001 YOY baseline indicated that most of the sub-adult and adult red drum sampled in the S and SC regions were produced from the same areas (82 to 91%), with limited exchange between these regions. Mixing was more pronounced in the northern regions (N, NC), with a large percentage (35 to 42%) of individuals originating from the adjacent region to the south. Overall, the majority of sub-adult and adult red drum was collected within or near the same region occupied during the YOY period, suggestive of natal homing, retention within specific estuarine corridors, or lower survivability of recruits migrating from distant regions. Published Article in Journal/Newspaper Red drum Sciaenops ocellatus Texas A&M University - Corpus Christi: DSpace Repository Sabine Lake ENVELOPE(-109.867,-109.867,57.100,57.100) Christmas Bay ENVELOPE(-138.371,-138.371,61.063,61.063) Marine Ecology Progress Series 407 187 196 |
institution |
Open Polar |
collection |
Texas A&M University - Corpus Christi: DSpace Repository |
op_collection_id |
fttexasamucorpus |
language |
unknown |
description |
Stable carbon (δ13C) and oxygen (δ18O) isotope ratios in otoliths were used to assess the degree of connectivity between early life and adult habitats of red drum Sciaenops ocellatus in the northern Gulf of Mexico. Young-of-the-year (YOY) red drum were sampled over a 3 yr period from major estuaries along the Texas coast, and otolith δ13C and δ18O were quantified to determine whether chemical tags in otoliths were region specific. North to south gradients were pronounced for otolith δ13C and δ18O, with values being higher (enriched in the heavier isotope) for YOY red drum from southern estuaries relative to those in the north. Four distinct regional groups of YOY red drum were identified using otolith δ13C and δ18O: North (N), Sabine Lake and East Galveston Bay; North-Central (NC), Christmas Bay and Matagorda Bay; South-Central (SC), Aransas Bay and Redfish Bay; and South (S), Laguna Madre. Overall classification success to these regional nurseries was high for each year examined: 2001 (92%), 2002 (82%) and 2003 (90%). Mixed-stock analysis performed with age-2+ red drum collected in 2003 matched to the 2001 YOY baseline indicated that most of the sub-adult and adult red drum sampled in the S and SC regions were produced from the same areas (82 to 91%), with limited exchange between these regions. Mixing was more pronounced in the northern regions (N, NC), with a large percentage (35 to 42%) of individuals originating from the adjacent region to the south. Overall, the majority of sub-adult and adult red drum was collected within or near the same region occupied during the YOY period, suggestive of natal homing, retention within specific estuarine corridors, or lower survivability of recruits migrating from distant regions. Published |
format |
Article in Journal/Newspaper |
author |
Rooker, Jay R. Stunz, Gregory W. Holt, Scott A. Minello, Thomas J. |
spellingShingle |
Rooker, Jay R. Stunz, Gregory W. Holt, Scott A. Minello, Thomas J. Population connectivity of red drum in the northern Gulf of Mexico |
author_facet |
Rooker, Jay R. Stunz, Gregory W. Holt, Scott A. Minello, Thomas J. |
author_sort |
Rooker, Jay R. |
title |
Population connectivity of red drum in the northern Gulf of Mexico |
title_short |
Population connectivity of red drum in the northern Gulf of Mexico |
title_full |
Population connectivity of red drum in the northern Gulf of Mexico |
title_fullStr |
Population connectivity of red drum in the northern Gulf of Mexico |
title_full_unstemmed |
Population connectivity of red drum in the northern Gulf of Mexico |
title_sort |
population connectivity of red drum in the northern gulf of mexico |
publisher |
InterResearch |
publishDate |
2010 |
url |
https://doi.org/10.3354/meps08605 |
long_lat |
ENVELOPE(-109.867,-109.867,57.100,57.100) ENVELOPE(-138.371,-138.371,61.063,61.063) |
geographic |
Sabine Lake Christmas Bay |
geographic_facet |
Sabine Lake Christmas Bay |
genre |
Red drum Sciaenops ocellatus |
genre_facet |
Red drum Sciaenops ocellatus |
op_relation |
67LPZ5K6 https://doi.org/10.3354/meps08605 https://tamucc-ir.tdl.org/handle/1969.6/86983https://doi.org/10.3354/meps08605 |
op_doi |
https://doi.org/10.3354/meps08605 |
container_title |
Marine Ecology Progress Series |
container_volume |
407 |
container_start_page |
187 |
op_container_end_page |
196 |
_version_ |
1780740032548569088 |