NDLI: Colour change in a filefish (Monacanthus chinensis) faced with the challenge of changing backgrounds

Content Provider	Springer Nature Link
Author	Gilby, B. L. Mari, R. A. Bell, E. G. Crawford, E. W. Jun, D. Lederer, B. I. Tibbetts, I. R. Burfeind, D. D.
Copyright Year	2015
Abstract	The marine macroalga Caulerpa taxifolia is increasing its distribution worldwide, both within its natural range, where it can replace seagrass following a disturbance, and in areas where it is invasive. C. taxifolia presents a bright green background colouration for inhabitants, while seagrass habitats are typically much deeper green in coloration. The fan-bellied leatherjacket, Monacanthus chinensis inhabits both seagrass Zostera muelleri and C. taxifolia habitats in Moreton Bay, Australia and is camouflaged in these contrasting habitats by brown and bright green colour morphs, respectively. Aquarium experiments measuring colour change of brown and green morphs with respect to contrasting habitats (i.e., brown morphs in C. taxofolia and green morphs in seagrass) revealed that over 21 days, brown morphs significantly altered their skin colouration towards the colouration of green morphs, but green morphs did not alter their colouration. In a habitat preference experiment, brown morphs, which match the colouration of the seagrass, significantly preferred seagrass to C. taxifolia, whilst green morphs showed no preference. We conclude that variations in C. taxifolia coverage present a substantial challenge to this species at short time scales (weeks). This challenge may be overcome by colouration changes at longer timescales assuming fish can survive predation during the adjustment period.
Starting Page	2021
Ending Page	2029
Page Count	9
File Format	PDF
ISSN	03781909
Journal	Environmental Biology of Fishes
Volume Number	98
Issue Number	9
e-ISSN	15735133
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-06-03
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Caulerpa taxifolia Seagrass Habitat change Colouration Habitat selection Freshwater & Marine Ecology Zoology Animal Systematics/Taxonomy/Biogeography Environment Nature Conservation
Content Type	Text
Resource Type	Article
Subject	Aquatic Science Ecology, Evolution, Behavior and Systematics

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