Assessing ecological and molecular divergence between the closely related species Hydrolagus pallidus and H. affinis (Chimaeridae)

Assessing ecological and molecular divergence between the closely related species Hydrolagus pallidus and H. affinis (Chimaeridae)

This study investigated taxonomic validity of the pale ghost shark Hydrolagus pallidus Hardy & Stehmann, 1990, which was described as a species distinct from the smalleyed rabbitfish H. affinis (de Brito Capello 1868). While few morphological characters distinguish the two taxa, a striking diffe...

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Bibliographic Details
Published in:Journal of fish biology Vol. 92; no. 4; pp. 1211 - 1217
Main Authors: Violi, B., Gaither, M. R., Burns, F., Rus Hoelzel, A., Neat, F.
Format: Journal Article
Language:English
Published: Oxford, UK Blackwell Publishing Ltd 01-04-2018
Wiley Subscription Services, Inc
Subjects:
Chimaeridae
COI
cryptic species
Cytochrome
Cytochromes
Divergence
Ecological monitoring
fishing pressure
Holocephali
Hydrolagus pallidus
Marine fishes
Rockall Trough
Sex ratio
Species
fishing pressure
Holocephali
Chimaeridae
COI
cryptic species
Rockall Trough
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Summary:This study investigated taxonomic validity of the pale ghost shark Hydrolagus pallidus Hardy & Stehmann, 1990, which was described as a species distinct from the smalleyed rabbitfish H. affinis (de Brito Capello 1868). While few morphological characters distinguish the two taxa, a striking difference in sex ratio and fixed differences (1·1–1·6% divergence) in the cytochrome oxidase subunit I barcoding gene support the recognition of both species.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0022-1112
1095-8649
DOI:10.1111/jfb.13572