Contrasting patterns of vertical and horizontal space use of two exploited and sympatric coral reef fish

Matley, J.K., Tobin, A.J., Lédée, E.J.I., Heupel, M.R., and Simpfendorfer, C.A. (2016) Contrasting patterns of vertical and horizontal space use of two exploited and sympatric coral reef fish. Marine Biology, 163. 253. pp. 1-12.

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Understanding spatial distribution and temporal variation in movement patterns of closely related species is relevant for deciphering how resources are selected and whether interactions between species affect resource use patterns. The horizontal space use and vertical space use of two exploited reef fish, Plectropomus leopardus and P. laevis (all adults), were compared at mid-shelf Helix Reef and Lodestone Reef in the Great Barrier Reef over similar to 3 years using passive acoustic telemetry. Both species were detected throughout the 12-month duration of transmitters (mean detection period: similar to 270 days) and often made deep movements to similar to 40 m possibly related to reproductive behaviour (spawning). Differences in space use were apparent between species, with P. laevis consistently using greater area around reefs throughout the year. Overall, depth use patterns were similar between species; however, when daily detections were grouped in 2-h periods, P. laevis remained shallower and had greater variation in depth use compared to P. leopardus. Contrasting patterns of space use between these co-occurring species, in conjunction with known dietary dissimilarities, indicate distinct habitat use and resource preferences that are important for conservation and fisheries management.

Item ID: 47052
Item Type: Article (Research - C1)
ISSN: 1432-1793
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A version of this publication was included as Chapter 5 of the following PhD thesis: Matley, Jordan Kyle (2017) Investigation of coral trout (Plectropomus spp.) movement patterns and resource use: a multidisciplinary approach using acoustic telemetry and dietary indicators. PhD thesis, James Cook University, which is available Open Access in ResearchOnline@JCU. Please see the Related URLs for access.

Funders: National Environmental Research Program, Australian Research Council (ARC), James Cook University (JCU), Natural Sciences and Engineering Research Council
Projects and Grants: ARC Future Fellowship FT100101004, JCU College of Marine and Environmental Sciences, JCU Graduate Research School
Date Deposited: 04 Jan 2017 07:44
FoR Codes: 31 BIOLOGICAL SCIENCES > 3103 Ecology > 310305 Marine and estuarine ecology (incl. marine ichthyology) @ 50%
41 ENVIRONMENTAL SCIENCES > 4104 Environmental management > 410401 Conservation and biodiversity @ 50%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960808 Marine Flora, Fauna and Biodiversity @ 50%
96 ENVIRONMENT > 9605 Ecosystem Assessment and Management > 960507 Ecosystem Assessment and Management of Marine Environments @ 50%
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