[MARMAM] New publication on identifying risks to marine mammals moving between protected areas

Daniel Zeh daniel.zeh at my.jcu.edu.au
Fri Apr 22 21:38:25 PDT 2016


Dear all,
My co-authors and I are pleased to announce the publication of our paper in Endangered Species Research:
Zeh DR, Heupel MR, Hamann M, Limpus CJ, Marsh H (2016) Quick Fix GPS technology highlights risk to dugongs moving between protected areas. Endangered Species Research 30:37-44.

ABSTRACT: Incidental capture in fishing gear is the most serious threat to the survival of many species of marine mammals. Fisheries closures developed to protect marine mammals have tended to concentrate on areas of high marine mammal density. Movement corridors have generally been less protected because they are often unknown and difficult to detect. Seagrass meadows in Moreton and Hervey Bays in south-eastern Queensland support significant populations of dugongs Dugong dugon. Pedigree analysis based on genetic and ancillary biological data indicates that there is substantial movement of dugongs between these bays, which are separated by open surf coasts where dugongs are occasionally caught in inshore shark nets set for the protection of bathers. This bycatch suggests that the dugong movement corridor between Moreton and Hervey Bays is close to the coast, a hypothesis not confirmed by nearly 30 yr of dugong satellite tracking using platform transmitter terminal (PTT) technology. Twenty-nine dugongs were captured in seagrass habitats on the eastern banks of Moreton Bay in 2012−2014 and were fitted with Quick Fix GPS and acoustic transmitters. One animal was captured and tracked twice. Four dugongs were tracked moving from Moreton Bay to Hervey Bay covering distances of 278−338 km over 5−9 d; 1 dugong made the return journey. Three of the 4 animals travelled along and very close to the coast; the exact track of the fourth animal is uncertain. These results suggest that dugongs would benefit from netting closures that extend beyond seagrass meadows.

The article is available for download at: at http://www.int-res.com/abstracts/esr/v30/ or a PDF can be provided via email request from daniel.zeh at my.jcu.edu.au<mailto:daniel.zeh at my.jcu.edu.au>.


Cheers,
Daniel Zeh



[DZ JCU Bus Card Nov 2014]



-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.uvic.ca/pipermail/marmam/attachments/20160423/874b1710/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 10216 bytes
Desc: image001.jpg
URL: <http://lists.uvic.ca/pipermail/marmam/attachments/20160423/874b1710/attachment.jpg>


More information about the MARMAM mailing list