Seasonality and relative abundance within an elasmobranch assemblage near a major biogeographic divide
Nearshore waters are utilized by elasmobranchs in various ways, including foraging, reproduction, and migration. Multiple elasmobranch species have been previously documented in the nearshore waters of North Carolina, USA, which has a biogeographic break at Cape Hatteras on the Atlantic coast. Howev...
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Online Access: | http://dx.doi.org/10.1371/journal.pone.0300697 https://dx.plos.org/10.1371/journal.pone.0300697 |
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crplos:10.1371/journal.pone.0300697 2024-09-09T20:14:36+00:00 Seasonality and relative abundance within an elasmobranch assemblage near a major biogeographic divide Roskar, Grace Morley, James W. Buckel, Jeffrey A. Miyake, Yoichi North Carolina Sea Grant, North Carolina State University 2024 http://dx.doi.org/10.1371/journal.pone.0300697 https://dx.plos.org/10.1371/journal.pone.0300697 en eng Public Library of Science (PLoS) http://creativecommons.org/licenses/by/4.0/ PLOS ONE volume 19, issue 6, page e0300697 ISSN 1932-6203 journal-article 2024 crplos https://doi.org/10.1371/journal.pone.0300697 2024-07-02T04:07:49Z Nearshore waters are utilized by elasmobranchs in various ways, including foraging, reproduction, and migration. Multiple elasmobranch species have been previously documented in the nearshore waters of North Carolina, USA, which has a biogeographic break at Cape Hatteras on the Atlantic coast. However, comprehensive understanding of the elasmobranch community in this region is still lacking. Monthly year-round trawling conducted along two ocean transects (near Cape Lookout and Masonboro Inlet in 5 to 18 m depth) in Onslow Bay, North Carolina provided the opportunity to examine the dynamics and seasonal patterns of this community using a multivariate approach, including permutational multivariate analysis of variance and nonparametric BIO-ENV analysis. From November 2004 to April 2008, 21,149 elasmobranchs comprised of 20 species were caught, dominated by spiny dogfish ( Squalus acanthias ) and clearnose skate ( Rostroraja eglanteria ). All species exhibited seasonal variation in abundance, but several key species contributed the most to seasonal differences in species composition within each transect. Spiny dogfish was most abundant in the winter at both locations, comprised mainly of mature females. Although clearnose skate was caught in all seasons, the species was most abundant during the spring and fall. Atlantic sharpnose ( Rhizoprionodon terraenovae ) was one of the most abundant species in the summer, and two distinct size cohorts were documented. Temperature appeared to be the main abiotic factor driving the community assemblage. The extensive year-round sampling provided the ability to better understand the dramatic seasonal variation in species composition and provides new information on the relative abundance of several understudied elasmobranch species that may be of significant ecological importance. Our results underscore the importance of inner continental shelf waters as important elasmobranch habitat and provide baseline data to examine for future shifts in timing and community structure at the ... Article in Journal/Newspaper spiny dogfish Squalus acanthias PLOS Cape Lookout ENVELOPE(156.450,156.450,-83.050,-83.050) Lookout ENVELOPE(77.955,77.955,-68.605,-68.605) PLOS ONE 19 6 e0300697 |
institution |
Open Polar |
collection |
PLOS |
op_collection_id |
crplos |
language |
English |
description |
Nearshore waters are utilized by elasmobranchs in various ways, including foraging, reproduction, and migration. Multiple elasmobranch species have been previously documented in the nearshore waters of North Carolina, USA, which has a biogeographic break at Cape Hatteras on the Atlantic coast. However, comprehensive understanding of the elasmobranch community in this region is still lacking. Monthly year-round trawling conducted along two ocean transects (near Cape Lookout and Masonboro Inlet in 5 to 18 m depth) in Onslow Bay, North Carolina provided the opportunity to examine the dynamics and seasonal patterns of this community using a multivariate approach, including permutational multivariate analysis of variance and nonparametric BIO-ENV analysis. From November 2004 to April 2008, 21,149 elasmobranchs comprised of 20 species were caught, dominated by spiny dogfish ( Squalus acanthias ) and clearnose skate ( Rostroraja eglanteria ). All species exhibited seasonal variation in abundance, but several key species contributed the most to seasonal differences in species composition within each transect. Spiny dogfish was most abundant in the winter at both locations, comprised mainly of mature females. Although clearnose skate was caught in all seasons, the species was most abundant during the spring and fall. Atlantic sharpnose ( Rhizoprionodon terraenovae ) was one of the most abundant species in the summer, and two distinct size cohorts were documented. Temperature appeared to be the main abiotic factor driving the community assemblage. The extensive year-round sampling provided the ability to better understand the dramatic seasonal variation in species composition and provides new information on the relative abundance of several understudied elasmobranch species that may be of significant ecological importance. Our results underscore the importance of inner continental shelf waters as important elasmobranch habitat and provide baseline data to examine for future shifts in timing and community structure at the ... |
author2 |
Miyake, Yoichi North Carolina Sea Grant, North Carolina State University |
format |
Article in Journal/Newspaper |
author |
Roskar, Grace Morley, James W. Buckel, Jeffrey A. |
spellingShingle |
Roskar, Grace Morley, James W. Buckel, Jeffrey A. Seasonality and relative abundance within an elasmobranch assemblage near a major biogeographic divide |
author_facet |
Roskar, Grace Morley, James W. Buckel, Jeffrey A. |
author_sort |
Roskar, Grace |
title |
Seasonality and relative abundance within an elasmobranch assemblage near a major biogeographic divide |
title_short |
Seasonality and relative abundance within an elasmobranch assemblage near a major biogeographic divide |
title_full |
Seasonality and relative abundance within an elasmobranch assemblage near a major biogeographic divide |
title_fullStr |
Seasonality and relative abundance within an elasmobranch assemblage near a major biogeographic divide |
title_full_unstemmed |
Seasonality and relative abundance within an elasmobranch assemblage near a major biogeographic divide |
title_sort |
seasonality and relative abundance within an elasmobranch assemblage near a major biogeographic divide |
publisher |
Public Library of Science (PLoS) |
publishDate |
2024 |
url |
http://dx.doi.org/10.1371/journal.pone.0300697 https://dx.plos.org/10.1371/journal.pone.0300697 |
long_lat |
ENVELOPE(156.450,156.450,-83.050,-83.050) ENVELOPE(77.955,77.955,-68.605,-68.605) |
geographic |
Cape Lookout Lookout |
geographic_facet |
Cape Lookout Lookout |
genre |
spiny dogfish Squalus acanthias |
genre_facet |
spiny dogfish Squalus acanthias |
op_source |
PLOS ONE volume 19, issue 6, page e0300697 ISSN 1932-6203 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1371/journal.pone.0300697 |
container_title |
PLOS ONE |
container_volume |
19 |
container_issue |
6 |
container_start_page |
e0300697 |
_version_ |
1809816271179481088 |