Age, growth, and spawning season of red bream (Beryx decadactylus) off the southeastern United States
Red bream (Beryx decadactylus) is a commercially importantdeep-sea benthopelagic fish with a circumglobaldistribution on insular and continental slopes and seamounts. In the United States, small numbers arecaught incidentally in the wreckfish (Polyprion americanus) fishery which operates off the sou...
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ftoceandocs:oai:aquadocs.org:1834/25371 2023-05-15T17:33:55+02:00 Age, growth, and spawning season of red bream (Beryx decadactylus) off the southeastern United States Friess, Claudia Sedberry, George R. 2011 application/pdf 20-33 http://hdl.handle.net/1834/25371 en eng http://fishbull.noaa.gov/1091/friess.pdf 0090-0656 http://hdl.handle.net/1834/25371 http://aquaticcommons.org/id/eprint/8721 403 2012-06-07 14:54:45 8721 United States National Marine Fisheries Service Biology Ecology Fisheries article TRUE 2011 ftoceandocs 2023-04-06T17:02:52Z Red bream (Beryx decadactylus) is a commercially importantdeep-sea benthopelagic fish with a circumglobaldistribution on insular and continental slopes and seamounts. In the United States, small numbers arecaught incidentally in the wreckfish (Polyprion americanus) fishery which operates off the southeastern coast, but no biological information exists for the management of the U.S. red bream population. For this study, otoliths (n=163) and gonads (n=161) were collected from commercially caughtred bream between 2003 and 2008 to determine life history parameters. Specimens ranged in size from 410 to 630 mm fork length and were all determined to be mature by histological examination of the gonads. Females in spawning condition were observed from June through September, and reproductively active males were found year-round. Sectionedotoliths were difficult to interpret, but maximum age estimates were much higher than the 15 years previouslyreported for this species from the eastern North Atlantic based on whole-otolith analysis. Estimated ages ranged from 8 to 69 years, and a minimum lifespan of 49 years wasvalidated by using bomb radiocarbon dating. Natural mortality was estimated at 0.06/yr. This study showsthat red bream are longer lived and more vulnerable to overfishing than previously assumed and should bemanaged carefully to prevent overexploitation. Article in Journal/Newspaper North Atlantic IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
institution |
Open Polar |
collection |
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
op_collection_id |
ftoceandocs |
language |
English |
topic |
Biology Ecology Fisheries |
spellingShingle |
Biology Ecology Fisheries Friess, Claudia Sedberry, George R. Age, growth, and spawning season of red bream (Beryx decadactylus) off the southeastern United States |
topic_facet |
Biology Ecology Fisheries |
description |
Red bream (Beryx decadactylus) is a commercially importantdeep-sea benthopelagic fish with a circumglobaldistribution on insular and continental slopes and seamounts. In the United States, small numbers arecaught incidentally in the wreckfish (Polyprion americanus) fishery which operates off the southeastern coast, but no biological information exists for the management of the U.S. red bream population. For this study, otoliths (n=163) and gonads (n=161) were collected from commercially caughtred bream between 2003 and 2008 to determine life history parameters. Specimens ranged in size from 410 to 630 mm fork length and were all determined to be mature by histological examination of the gonads. Females in spawning condition were observed from June through September, and reproductively active males were found year-round. Sectionedotoliths were difficult to interpret, but maximum age estimates were much higher than the 15 years previouslyreported for this species from the eastern North Atlantic based on whole-otolith analysis. Estimated ages ranged from 8 to 69 years, and a minimum lifespan of 49 years wasvalidated by using bomb radiocarbon dating. Natural mortality was estimated at 0.06/yr. This study showsthat red bream are longer lived and more vulnerable to overfishing than previously assumed and should bemanaged carefully to prevent overexploitation. |
format |
Article in Journal/Newspaper |
author |
Friess, Claudia Sedberry, George R. |
author_facet |
Friess, Claudia Sedberry, George R. |
author_sort |
Friess, Claudia |
title |
Age, growth, and spawning season of red bream (Beryx decadactylus) off the southeastern United States |
title_short |
Age, growth, and spawning season of red bream (Beryx decadactylus) off the southeastern United States |
title_full |
Age, growth, and spawning season of red bream (Beryx decadactylus) off the southeastern United States |
title_fullStr |
Age, growth, and spawning season of red bream (Beryx decadactylus) off the southeastern United States |
title_full_unstemmed |
Age, growth, and spawning season of red bream (Beryx decadactylus) off the southeastern United States |
title_sort |
age, growth, and spawning season of red bream (beryx decadactylus) off the southeastern united states |
publishDate |
2011 |
url |
http://hdl.handle.net/1834/25371 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
http://aquaticcommons.org/id/eprint/8721 403 2012-06-07 14:54:45 8721 United States National Marine Fisheries Service |
op_relation |
http://fishbull.noaa.gov/1091/friess.pdf 0090-0656 http://hdl.handle.net/1834/25371 |
_version_ |
1766132570409402368 |