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Genetic and Morphological Divergence of a Circumtropical Complex of Goatfishes: Mulloidichthys vanicolensis, M. dentatus, and M. martinicus

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Title:Genetic and Morphological Divergence of a Circumtropical Complex of Goatfishes: Mulloidichthys vanicolensis, M. dentatus, and M. martinicus
Authors:Stepien, Carol A.
Randall, John E.
Rosenblatt, Richard H.
Date Issued:Jan 1994
Publisher:University of Hawaii Press
Citation:Stepien CA, Randall JE, Rosenblatt RH. 1994. Genetic and morphological divergence of a circumtropical complex of goatfishes: Mulloidichthys vanicolensis, M. dentatus, and M. martinicus. Pac Sci 48(1): 44-56.
Abstract:Allozyme and meristic data were used to compare relationships
among three species of a circumtropical complex of goatfishes that are very
similiar in color and morphology: Mulloidichthys vanicolensis (Valenciennes) of
the Indo-Pacific, M. dentatus (Gill) of the eastern Pacific, and M. martinicus
(Cuvier) of the western Atlantic. The species are distinguished by several
allozyme differences as well as by gill-raker counts. Allozyme data from several
widely separated populations of M. vanicolensis (including isolated islands with
high endemism in other groups) suggest little genetic divergence, consistent with
high levels of dispersal and gene flow. Morphological data suggest greater
divergence between populations of M. vanicolensis from the western Indian
Ocean and the Pacific Ocean than is apparent from allozyme data.
URI/DOI:http://hdl.handle.net/10125/2196
ISSN:0030-8870
Appears in Collections: Pacific Science Volume 48, Number 1, 1994


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