The Pennatulid Kophobelemnon stelliferum (Cnidaria: Octocorallia) in the Porcupine Seabight (north-east Atlantic Ocean)
The upper bathyal sea-pen Kophobelemnon stelliferum extends to depths of about 1600 m in the Porcupine Seabight, to the south-west of Ireland, but is rare below about 1150 m. Photographic data suggest that the species attains numerical abundances of more than 2 m−2and a wet weight biomass of at leas...
Published in: | Journal of the Marine Biological Association of the United Kingdom |
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Language: | English |
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Cambridge University Press
1992
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Online Access: | https://oceanrep.geomar.de/id/eprint/31800/ https://oceanrep.geomar.de/id/eprint/31800/1/Rice.pdf https://doi.org/10.1017/S0025315400037796 |
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ftoceanrep:oai:oceanrep.geomar.de:31800 2023-05-15T17:38:26+02:00 The Pennatulid Kophobelemnon stelliferum (Cnidaria: Octocorallia) in the Porcupine Seabight (north-east Atlantic Ocean) Rice, A. L. Tyler, P. A. Paterson, G. J. L. 1992 text https://oceanrep.geomar.de/id/eprint/31800/ https://oceanrep.geomar.de/id/eprint/31800/1/Rice.pdf https://doi.org/10.1017/S0025315400037796 en eng Cambridge University Press https://oceanrep.geomar.de/id/eprint/31800/1/Rice.pdf Rice, A. L., Tyler, P. A. and Paterson, G. J. L. (1992) The Pennatulid Kophobelemnon stelliferum (Cnidaria: Octocorallia) in the Porcupine Seabight (north-east Atlantic Ocean). Journal of The Marine Biological Association of The United Kingdom, 72 (2). pp. 417-434. DOI 10.1017/S0025315400037796 <https://doi.org/10.1017/S0025315400037796>. doi:10.1017/S0025315400037796 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 1992 ftoceanrep https://doi.org/10.1017/S0025315400037796 2023-04-07T15:24:21Z The upper bathyal sea-pen Kophobelemnon stelliferum extends to depths of about 1600 m in the Porcupine Seabight, to the south-west of Ireland, but is rare below about 1150 m. Photographic data suggest that the species attains numerical abundances of more than 2 m−2and a wet weight biomass of at least 4 g m−2. The highest densities, however, do not necessarily correspond to the highest biomass values since there is a clear depth-related change in population structure. The largest sea-pens are restricted to the deeper parts of the bathymetric range of the species. There is also a marked change in the growth form at a total colony length of about 250 mm, with larger colonies having relatively more polyps than smaller ones. The sexes are separate in Kophobelemnon stelliferum and the sex ratio of colonies is about 1:1. The maximum oocyte diameter is about 800 μm, but there is no evidence of seasonal reproduction by this pennatulid in the Porcupine Seabight. Article in Journal/Newspaper North East Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Porcupine Seabight ENVELOPE(-13.000,-13.000,50.500,50.500) Journal of the Marine Biological Association of the United Kingdom 72 2 417 434 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
The upper bathyal sea-pen Kophobelemnon stelliferum extends to depths of about 1600 m in the Porcupine Seabight, to the south-west of Ireland, but is rare below about 1150 m. Photographic data suggest that the species attains numerical abundances of more than 2 m−2and a wet weight biomass of at least 4 g m−2. The highest densities, however, do not necessarily correspond to the highest biomass values since there is a clear depth-related change in population structure. The largest sea-pens are restricted to the deeper parts of the bathymetric range of the species. There is also a marked change in the growth form at a total colony length of about 250 mm, with larger colonies having relatively more polyps than smaller ones. The sexes are separate in Kophobelemnon stelliferum and the sex ratio of colonies is about 1:1. The maximum oocyte diameter is about 800 μm, but there is no evidence of seasonal reproduction by this pennatulid in the Porcupine Seabight. |
format |
Article in Journal/Newspaper |
author |
Rice, A. L. Tyler, P. A. Paterson, G. J. L. |
spellingShingle |
Rice, A. L. Tyler, P. A. Paterson, G. J. L. The Pennatulid Kophobelemnon stelliferum (Cnidaria: Octocorallia) in the Porcupine Seabight (north-east Atlantic Ocean) |
author_facet |
Rice, A. L. Tyler, P. A. Paterson, G. J. L. |
author_sort |
Rice, A. L. |
title |
The Pennatulid Kophobelemnon stelliferum (Cnidaria: Octocorallia) in the Porcupine Seabight (north-east Atlantic Ocean) |
title_short |
The Pennatulid Kophobelemnon stelliferum (Cnidaria: Octocorallia) in the Porcupine Seabight (north-east Atlantic Ocean) |
title_full |
The Pennatulid Kophobelemnon stelliferum (Cnidaria: Octocorallia) in the Porcupine Seabight (north-east Atlantic Ocean) |
title_fullStr |
The Pennatulid Kophobelemnon stelliferum (Cnidaria: Octocorallia) in the Porcupine Seabight (north-east Atlantic Ocean) |
title_full_unstemmed |
The Pennatulid Kophobelemnon stelliferum (Cnidaria: Octocorallia) in the Porcupine Seabight (north-east Atlantic Ocean) |
title_sort |
pennatulid kophobelemnon stelliferum (cnidaria: octocorallia) in the porcupine seabight (north-east atlantic ocean) |
publisher |
Cambridge University Press |
publishDate |
1992 |
url |
https://oceanrep.geomar.de/id/eprint/31800/ https://oceanrep.geomar.de/id/eprint/31800/1/Rice.pdf https://doi.org/10.1017/S0025315400037796 |
long_lat |
ENVELOPE(-13.000,-13.000,50.500,50.500) |
geographic |
Porcupine Seabight |
geographic_facet |
Porcupine Seabight |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/31800/1/Rice.pdf Rice, A. L., Tyler, P. A. and Paterson, G. J. L. (1992) The Pennatulid Kophobelemnon stelliferum (Cnidaria: Octocorallia) in the Porcupine Seabight (north-east Atlantic Ocean). Journal of The Marine Biological Association of The United Kingdom, 72 (2). pp. 417-434. DOI 10.1017/S0025315400037796 <https://doi.org/10.1017/S0025315400037796>. doi:10.1017/S0025315400037796 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1017/S0025315400037796 |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
72 |
container_issue |
2 |
container_start_page |
417 |
op_container_end_page |
434 |
_version_ |
1766138881304952832 |