Please use this identifier to cite or link to this item:
|Scopus||Web of Science®||Altmetric|
Full metadata record
|dc.identifier.citation||Marine Ecology: Progress Series, 2011; 434:133-143||-|
|dc.description.abstract||We compare vertebral microchemistry with previously described age-related movement patterns of bull sharks Carcharhinus leucas and pig-eye sharks C. amboinensis within coastal waters of north Australia. Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) quantified the chemical signatures of nursery habitats within the vertebrae of juvenile and adult sharks. We examined evidence for adults returning to these habitats by applying LA-ICP-MS along a growth axis of their vertebrae. We transposed chemical signatures with growth increments in adult vertebrae to correlate with age estimates. Unique elemental signatures were identified in each of the freshwater nurseries, but we did not find them in adult vertebrae. Age-specific changes in vertebral microchemistry in mature female bull sharks correlate with periodic returns every 1 to 2 yr to less saline environments to pup. We were unable to discriminate among natal habitats of pig-eye sharks using elemental fingerprints, and age-specific changes in vertebral microchemistry were also absent. We conclude that changes in vertebral microchemistry correlate with known habitat use patterns of the bull and pig-eye sharks, showing the potential of vertebral microchemistry to discern movement patterns in sharks.||-|
|dc.description.statementofresponsibility||Bree J. Tillett, Mark G. Meekan, David Parry, Niels Munksgaard, Iain C. Field, Dean Thorburn and Corey J. A. Bradshaw||-|
|dc.rights||Copyright © 2011 Inter-Research.||-|
|dc.title||Decoding fingerprints: elemental composition of vertebrae correlates to age-related habitat use in two morphologically similar sharks||-|
|dc.identifier.orcid||Bradshaw, C. [0000-0002-5328-7741]||-|
|Appears in Collections:||Aurora harvest 5|
Earth and Environmental Sciences publications
Environment Institute Leaders publications
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.