NDLI: Spatial ecology of the steephead parrotfish (Chlorurus microrhinos): an evaluation using acoustic telemetry

Content Provider	Springer Nature Link
Author	Welsh, J. Q. Bellwood, D. R.
Copyright Year	2011
Abstract	Herbivory and other ecosystem processes are widely accepted as important factors in maintaining coral reef resilience. While the spatial scales over which these processes occur have been evaluated, the spatial ecology of individual taxa responsible for shaping these processes is almost entirely unknown. This study combined acoustic telemetry and ecological assessments to evaluate the movement patterns and feeding range of a functionally important coral reef fish, Chlorurus microrhinos (f. Labridae). The diurnal home range and feeding areas of C. microrhinos, on Orpheus Island, Great Barrier Reef, were quantified using active acoustic telemetry. The average diurnal home range of C. microrhinos was 7,830 m2 ± 940 (SE). Core areas of activity (50% kernel utilization distributions) were relatively small, encompassing approximately 22% of an individual’s home range (1,690 m2 ± 220). Core areas exhibited greater topographic complexity. C. microrhinos may select these areas because of decreased predation risk. Feeding intensities were not homogenous throughout the home range. Core areas were found to have a greater number of feeding scars and are thus exposed to increased bioerosion and algal removal by C. microrhinos. While important in shaping key ecosystem processes, the ecosystem impact of individual C. microrhinos in Pioneer Bay appears to be restricted to small areas within a narrow band along the reef crest.
Starting Page	55
Ending Page	65
Page Count	11
File Format	PDF
ISSN	07224028
Journal	Coral Reefs
Volume Number	31
Issue Number	1
e-ISSN	14320975
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-08-24
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Home range Ecosystem function Coral reefs Spatial resilience Herbivory Telemetry Freshwater & Marine Ecology Oceanography
Content Type	Text
Resource Type	Article
Subject	Aquatic Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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