Osteoderms of estuarine crocodiles record their enhanced Pb exposure in Kakadu National Park

Twining, JR; Markich, SJ; Prince, KE; Jeffree, R

Osteoderms of estuarine crocodiles record their enhanced Pb exposure in Kakadu National Park

Twining, JR Markich, SJ Prince, KE Jeffree, R

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Publisher:: American Chemical Society
Publication Type:: Journal Article
Citation:: Environmental Science & Technology, 1993, 33 pp. 4396 - 4400
Issue Date:: 1993-01

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Field	Value	Language
dc.contributor.author	Twining, JR	en_US
dc.contributor.author	Markich, SJ	en_US
dc.contributor.author	Prince, KE	en_US
dc.contributor.author	Jeffree, R	en_US
dc.date.issued	1993-01	en_US
dc.identifier.citation	Environmental Science & Technology, 1993, 33 pp. 4396 - 4400	en_US
dc.identifier.issn	0013-936X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/15414
dc.description.abstract	Pb exposure in wild crocodiles, as recorded in their dermal bones (osteoderms). Riverine habitats of the estuarine crocodile, Crocodylus porosus, in Kakadu National Park, northern Australia, have been exposed to anthropogenic Pb since the mid-1950s, due mainly to replacement of traditional spear by guns using lead ammunition for the hunting of wildlife by the Aboriginal owners. Resident crocodiles ingest waterfowl, flying foxes, and pigs killed or crippled by Pb ammunition, also commonly found in crocodile stomachs. Among 40 wild crocodiles sampled, the osteoderms from five residents of two intensively hunted habitats each had enhanced Pb (19-44 íg/g dry weight), relative to all others.	en_US
dc.publisher	American Chemical Society	en_US
dc.relation.ispartof	Environmental Science & Technology	en_US
dc.relation.isbasedon	http://dx.doi.org/10.1021/es9904787	en_US
dc.subject.classification	Environmental Sciences	en_US
dc.title	Osteoderms of estuarine crocodiles record their enhanced Pb exposure in Kakadu National Park	en_US
dc.type	Journal Article
utslib.citation.volume	33	en_US
utslib.for	0907 Environmental Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
utslib.copyright.status	closed_access
pubs.consider-herdc	false	en_US
pubs.volume	33	en_US

Abstract:

Pb exposure in wild crocodiles, as recorded in their dermal bones (osteoderms). Riverine habitats of the estuarine crocodile, Crocodylus porosus, in Kakadu National Park, northern Australia, have been exposed to anthropogenic Pb since the mid-1950s, due mainly to replacement of traditional spear by guns using lead ammunition for the hunting of wildlife by the Aboriginal owners. Resident crocodiles ingest waterfowl, flying foxes, and pigs killed or crippled by Pb ammunition, also commonly found in crocodile stomachs. Among 40 wild crocodiles sampled, the osteoderms from five residents of two intensively hunted habitats each had enhanced Pb (19-44 íg/g dry weight), relative to all others.

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http://hdl.handle.net/10453/15414