An evaluation of a double-tailed deformity in a coral-reef surgeonfish Acanthurus nigrofuscus (Acanthuridae) using micro-computed tomography
An evaluation of a double-tailed deformity in a coral-reef surgeonfish Acanthurus nigrofuscus (Acanthuridae) using micro-computed tomography
X-ray micro-computed tomography scans were used to examine the caudal-fin structure of an unusual double-tailed deformity in an adult brown surgeonfish Acanthurus nigrofuscus from the Great Barrier Reef. In both this case and in a similar double-tailed deformity in a juvenile Tomini surgeonfish Ctenochaetus tominiensis from the Philippines, the caudal fin was duplicated along the dorsoventral axis. Detailed examination of the A. nigrofuscus specimen revealed that the deformity was associated with duplication and reflection of the hypural plates and the posterior vertebrae, yet the fish survived to adulthood, indicating that the effects of duplication on survival may be limited.
1645-1650
Goatley, Christopher
b158dc1a-76f3-4ace-9d33-260d8c76ac93
14 March 2018
Goatley, Christopher
b158dc1a-76f3-4ace-9d33-260d8c76ac93
Goatley, Christopher
(2018)
An evaluation of a double-tailed deformity in a coral-reef surgeonfish Acanthurus nigrofuscus (Acanthuridae) using micro-computed tomography.
Journal of Fish Biology, 92 (5), .
(doi:10.1111/jfb.13600).
Abstract
X-ray micro-computed tomography scans were used to examine the caudal-fin structure of an unusual double-tailed deformity in an adult brown surgeonfish Acanthurus nigrofuscus from the Great Barrier Reef. In both this case and in a similar double-tailed deformity in a juvenile Tomini surgeonfish Ctenochaetus tominiensis from the Philippines, the caudal fin was duplicated along the dorsoventral axis. Detailed examination of the A. nigrofuscus specimen revealed that the deformity was associated with duplication and reflection of the hypural plates and the posterior vertebrae, yet the fish survived to adulthood, indicating that the effects of duplication on survival may be limited.
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Published date: 14 March 2018
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Local EPrints ID: 470230
URI: http://eprints.soton.ac.uk/id/eprint/470230
ISSN: 0022-1112
PURE UUID: 1796e20f-c9a7-45dc-a2fb-0fca3926279d
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Date deposited: 04 Oct 2022 16:53
Last modified: 17 Mar 2024 04:14
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Author:
Christopher Goatley
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