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Comparative Allometric Growth of the Mimetic Ephippid Reef Fishes Chaetodipterus faber and Platax orbicularis
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Comparative Allometric Growth of the Mimetic Ephippid Reef Fishes Chaetodipterus faber and Platax orbicularis
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Comparative Allometric Growth of the Mimetic Ephippid Reef Fishes Chaetodipterus faber and Platax orbicularis
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Journal Article
Comparative Allometric Growth of the Mimetic Ephippid Reef Fishes Chaetodipterus faber and Platax orbicularis
2015
Overview
Mimesis is a relatively widespread phenomenon among reef fish, but the ontogenetic processes relevant for mimetic associations in fish are still poorly understood. In the present study, the allometric growth of two allopatric leaf-mimetic species of ephippid fishes, Chaetodipterus faber from the Atlantic and Platax orbicularis from the Indo-Pacific, was analyzed using ten morphological variables. The development of fins was considered owing to the importance of these structures for mimetic behaviors during early life stages. Despite the anatomical and behavioral similarities in both juvenile and adult stages, C. faber and P. orbicularis showed distinct patterns of growth. The overall shape of C. faber transforms from a rounded-shape in mimetic juveniles to a lengthened profile in adults, while in P. orbicularis, juveniles present an oblong profile including dorsal and anal fins, with relative fin size diminishing while the overall profile grows rounder in adults. Although the two species are closely-related, the present results suggest that growth patterns in C. faber and P. orbicularis are different, and are probably independent events in ephippids that have resulted from similar selective processes.
Publisher
Public Library of Science (PLoS),Public Library of Science
Subject
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
/ [SDE.MCG]Environmental Sciences/Global Changes
/ [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems
/ Adults
/ Animal Fins - anatomy & histology
/ Animal Fins - growth & development
/ Animals
/ Biology
/ Fins
/ Fish
/ Fishing
/ Medicine
/ Ontogeny
/ Perciformes - anatomy & histology
/ Perciformes - growth & development
/ Q
/ R
/ Science
/ Sparidae
