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Media type:
E-Article
Title:
Genetic and morphological variation in corallivorous snails (Coralliophila spp.) living on different host corals at Curaçao, southern Caribbean
Contributor:
Potkamp, Gerrit;
Vermeij, Mark J.A.;
Hoeksema, Bert W.
imprint:
Brill, 2017
Published in:Contributions to Zoology
Language:
Not determined
DOI:
10.1163/18759866-08602002
ISSN:
1875-9866;
1383-4517
Origination:
Footnote:
Description:
<jats:p>Snails of the genus <jats:italic>Coralliophila</jats:italic> (Muricidae: Coralliophilinae) are common corallivores in the Caribbean, feeding on a wide range of host species. In the present study, the morphological and genetic variation in <jats:italic>C. galea</jats:italic> and <jats:italic>C. caribaea</jats:italic> were studied in relation to their association with host coral species at Curaçao. Differences in shell shape among snails living on different hosts were quantified using geometric morphometric and phylogenetic relationships were studied using two mitochondrial markers (12S and COI). Based on these analyses, a new species, <jats:italic>C. curacaoensis</jats:italic> sp. nov., was found in association with the scleractinian coral <jats:italic>Madracis auretenra</jats:italic>. Both <jats:italic>C. galea</jats:italic> and <jats:italic>C. caribaea</jats:italic> showed host-specific differences in shell shape, size, and shell allometry (i.e. changes in morphological development during growth). Shell spire variability contributed foremost to the overall variation in shell shape. In <jats:italic>C. caribaea</jats:italic> minor genetic differences existed between snails associated with scleractinian and alcyonacean corals, whereas in <jats:italic>C. galea</jats:italic> such intraspecific variation was not found. These results shed more light on morphological and genetic differences among coral-associated fauna living on different host species.</jats:p>