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Complexities of coastal shark movements and their implications for management

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dc.contributor Inst Environm
dc.contributor Charles Darwin University
dc.contributor Australian Institute Of Marine Science
dc.contributor S Australian Res & Dev Inst
dc.contributor Sch Earth & Environm Sci
dc.contributor Sch Environm Res
dc.contributor University Of Western Australia
dc.contributor Macquarie University
dc.contributor Charles Darwin Univ
dc.contributor University Of Adelaide
dc.contributor Australian Inst Marine Sci
dc.contributor Uwa Oceans Inst Mo96
dc.contributor Univ Adelaide
dc.contributor Grad Sch Environm
dc.contributor Macquarie Univ
dc.contributor Australian Institute Of Marine Science (aims) en
dc.contributor.author BRADSHAW, COREY J. A.
dc.contributor.author SPEED, CONRAD W.
dc.contributor.author FIELD, IAIN C.
dc.contributor.author MEEKAN, MARK G.
dc.date.accessioned 2017-03-21T00:53:00Z
dc.date.accessioned 2017-03-21T00:53:00Z
dc.date.accessioned 2013-02-28T06:44:46Z
dc.date.accessioned 2019-07-08T02:20:47Z
dc.date.available 2013-02-28T06:44:46Z
dc.date.available 2013-02-28T06:44:46Z
dc.date.available 2017-03-21T00:53:00Z
dc.date.available 2019-07-08T02:20:47Z
dc.date.issued 2010-01-01
dc.identifier 8452 en
dc.identifier.citation Speed CW, Field IC, Meekan MG and Bradshaw CJA (2010) Complexities of coastal shark movements and their implications for management. Marine Ecology Progress Series. 408: 275-293. en
dc.identifier.issn 0171-8630
dc.identifier.uri http://epubs.aims.gov.au/11068/8452
dc.description Link to abstract/full text - http://dx.doi.org/10.3354/meps08581 en
dc.description.abstract Global declines of shark populations are of concern because of their largely assumed role as moderators of ecosystem function. Without long-term data on movement patterns for many species, it is impossible to infer relative extinction risk, which varies as a function of range, dispersal and habitat specificity and use. The past 50 yr of research on coastal sharks has revealed common movement patterns among species. In the horizontal plane, measured home range size generally increases with body size. We demonstrate meta-analytically the effects of increasing body size and monitoring time on home range size. Changes in the extent of horizontal movement might arise from ontogeny, predator avoidance or environmental tolerances. In the vertical plane, movement patterns include oscillatory vertical displacement, surface swimming, diel vertical migration and swimming at depth. These vertical movements are often attributed to foraging or navigation, but have been quantified less than horizontal patterns. Habitat specificity is often correlated with environmental conditions such as depth, salinity, substratum, and in some cases, prey availability. Site fidelity is common in species that use nursery areas. However, fidelity to mating, pupping, feeding and natal sites has only been observed in a few species. To date, few studies have examined habitat partitioning, although some general patterns have emerged: habitats appear to be subdivided by benthos type, prey availability and depth. The conservation of coastal sharks can be facilitated in some cases by the use of marine protected areas, especially for coastal resident species using specific nursery, reproduction or feeding areas. Partial protected-area closures might be effective during aggregation or migration periods to protect older size classes, but these must be applied with other management strategies such as reduced fishing and size or bag limits to protect individuals throughout different life history phases. More long-term research on habitat use, migration patterns and habitat partitioning is essential for developing successful management initiatives for coastal shark populations.
dc.description.sponsorship We thank the Australian Institute of Marine Science, Charles Darwin University, The University of Adelaide, and Macquarie University for their ongoing support and assistance. We thank R. Fisher for assistance with mapping.
dc.description.uri http://dx.doi.org/10.3354/meps08581 en
dc.language English
dc.language en en
dc.relation.ispartof Marine Ecology Progress Series - pages: 408: 275-293 en
dc.relation.ispartof Null
dc.subject Short-term Movements
dc.subject Habitat Loss
dc.subject Ecology
dc.subject Depth Range
dc.subject Juvenile Lemon Sharks
dc.subject Seasonal Distribution Patterns
dc.subject Horizontal Range
dc.subject Scalloped Hammerhead Sharks
dc.subject Environmental Sciences & Ecology
dc.subject Young Sandbar Sharks
dc.subject Ontogeny
dc.subject Segregation
dc.subject Home Range
dc.subject Site Fidelity
dc.subject Habitat Partitioning
dc.subject Extinction Risk
dc.subject Harvest
dc.subject Marine & Freshwater Biology
dc.subject Feeding Basking Shark
dc.subject Oceanography
dc.subject Vertical Migration
dc.subject Gulf-of-mexico
dc.subject Western North-atlantic
dc.subject Caribbean Reef Sharks
dc.subject Diel Vertical Migration
dc.subject Life History
dc.title Complexities of coastal shark movements and their implications for management
dc.type journal article en
dc.identifier.doi 10.3354/meps08581
dc.identifier.wos WOS:000278978800024


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