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Spatial and temporal movement patterns of a multi-species coastal reef shark aggregation

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dc.contributor S Australian Res & Dev Inst
dc.contributor Sch Earth & Environm Sci
dc.contributor Flinders University South Australia
dc.contributor Murdoch Univ
dc.contributor Murdoch University
dc.contributor Sch Environm Res
dc.contributor Sch Biol Sci
dc.contributor University Of Western Australia
dc.contributor Macquarie University
dc.contributor Charles Darwin Univ
dc.contributor Commonwealth Scientific & Industrial Research Organisation (csiro)
dc.contributor Field Stn
dc.contributor University Of Adelaide
dc.contributor Australian Inst Marine Sci
dc.contributor Univ Adelaide
dc.contributor Flinders Univ S Australia
dc.contributor Grad Sch Environm
dc.contributor Uwa Oceans Inst M096
dc.contributor Macquarie Univ
dc.contributor Inst Environm
dc.contributor Charles Darwin University
dc.contributor Csiro Marine & Atmospher Res
dc.contributor Australian Institute Of Marine Science
dc.contributor Australian Institute Of Marine Science (aims) en BRADSHAW, COREY J. A. SPEED, CONRAD W. MEEKAN, MARK G. FIELD, IAIN C. MCMAHON, CLIVE R. STEVENS, JOHN D. MCGREGOR, FRAZER HUVENEERS, CHARLIE BERGER, YUVAL 2017-03-21T01:21:03Z 2017-03-21T01:21:03Z 2013-02-28T06:52:56Z 2019-05-09T01:14:34Z 2017-03-21T01:21:03Z 2017-03-21T01:21:03Z 2013-02-28T06:52:56Z 2019-05-09T01:14:34Z 2011-01-01
dc.identifier 8831 en
dc.identifier.citation Speed CW, Meekan MG, Field IC, McMahon CR, Stevens JD, McGregor F, Huveneers C, Berger Y and Bradshaw CJA (2011) Spatial and temporal movement patterns of a multi-species coastal reef shark aggregation. Marine Ecology Progress Series. 429: 261-275. en
dc.identifier.issn 0171-8630
dc.description Link to abstract/full text - en
dc.description.abstract The quantification of spatial and temporal movement patterns of coral reef sharks is important to understand their role in reef communities and to aid the design of conservation strategies for this predatory guild. We observed 4 species of reef sharks aggregating in an inshore bay in the north of Western Australia for over 2 yr, using acoustic telemetry and visual censuses to examine how they partitioned this site in space and time. We fitted 58 sharks with acoustic transmitters: Carcharhinus melanopterus (36), C. amblyrhynchos (11), Negaprion acutidens (7) and Triaenodon obesus (4). Aggregations consisted primarily of C. melanopterus, although C. amblyrhynchos and N. acutidens were often present. We observed aggregations by visual census in summer (maximum of 44 sharks). Detections were highest during warmer months (Sep to Mar) for all species, although some individuals showed year-round residency. C. melanopterus, C. amblyrhynchos and N. acutidens had strong diel patterns of attendance at the aggregation site. Peak daily detections occurred from 13: 00 to 14: 00 h local time for C. melanopterus and C. amblyrhynchos; juvenile C. melanopterus and N. acutidens peaked at 05:00 and 10:00 h, respectively. There was considerable spatial overlap of core areas of use (50% kernel density estimates) at the northern end of the bay by all species; the southern end was used primarily by C. melanopterus and N. acutidens. Aggregations of C. melanopterus and C. amblyrhynchos consisted mainly of adult females, some of them pregnant. Courtship behaviour in C. melanopterus and T. obesus suggests that these aggregations are related to reproduction. All species displayed inter-annual site fidelity. The long-term presence of juvenile C. melanopterus and N. acutidens also suggests that this bay provides suitable conditions for younger age classes.
dc.description.sponsorship This study was funded by the Australian Institute of Marine Science and the Australian Commonwealth Scientific and Industrial Research Organisation. Receiver data was provided through the Australian Animal Tracking and Monitoring System (AATAMS), a facility of Integrated Marine Observing System. AATAMS also provided in-kind support and technical assistance. Field work was done in compliance with research permits supplied by the Department of Environment and Conservation and the Western Australian Department of Fisheries (SF7536, CE002881 and 1719-2010-39). Animal ethics for all animal handling was approved by the Charles Darwin University Animal Ethics Committee (A07035). We thank O. O'Shea, R. McAuley, J. Ruppert, F. Wiley, S. Baccarella, P. Haskell, D. Simpson, C. Lochu, F. Cerutti and S. Ridley for assistance with field work, and C. Simpfendorfer, R. Fisher, M. Case and B. Radford for advice and assistance with analysis.
dc.description.uri en
dc.language English
dc.language en en
dc.relation.ispartof Marine Ecology Progress Series - pages: 429: 261-275 en
dc.relation.ispartof Null
dc.subject Behavior
dc.subject Carcharhinus-melanopterus
dc.subject Management
dc.subject Ecology
dc.subject Habitat Use
dc.subject Florida Estuary
dc.subject Lemon Sharks
dc.subject Residency
dc.subject Environmental Sciences & Ecology
dc.subject Nursery Habitat
dc.subject Diel Patterns
dc.subject Western-australia
dc.subject Negaprion-brevirostris
dc.subject Marine & Freshwater Biology
dc.subject Site Fidelity
dc.subject Habitat Partitioning
dc.subject Pacific-ocean
dc.subject Oceanography
dc.subject Palmyra Atoll
dc.subject Acoustic Telemetry
dc.subject Visual Census
dc.subject Islands
dc.title Spatial and temporal movement patterns of a multi-species coastal reef shark aggregation
dc.type journal article en
dc.identifier.doi 10.3354/meps09080
dc.identifier.wos WOS:000290682100022

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