[MARMAM] New article on bottlenose dolphin pathology caused by gillnet depredation

Martina Duras Gomercic martina.duras at vz.htnet.hr
Fri Nov 7 05:11:17 PST 2008

Dear list members,

the following article can be viewed in the "Early View" section of Marine Mammal Science at the journal's website: http://www3.interscience.wiley.com/journal/119881066/issue

Martina Duras Gomercic, Ana Galov, Tomislav Gomercic, Darinka Skrtic, Snjezana Curkovic, Hrvoje Lucic, Snjezana Vukovic, Haidi Arbanasic, Hrvoje Gomercic: *Bottlenose dolphin (/Tursiops truncatus/) 
depredation resulting in larynx strangulation with gill-net parts. Marine Mammal Science. D*OI: 10.1111/j.1748-7692.2008.00259.x


Cetacean interactions with fishing gear have been regularly reported and most frequently involve incidental capture. However, limited records exist related to depredation resulting in fishing gear ingestion. Here 
we present cases of depredation resulting in gillnet part ingestion and larynx strangulation documented for the first time in a cetacean species. The bottlenose dolphin (/Tursiops truncatus/) is the only 
resident species in the Adriatic Sea, where small-scale commercial and private fisheries use gillnets throughout the year. A total of 120 dead-stranded bottlenose dolphins found along the Croatian coast of the 
Adriatic Sea were examined from 1990 to March 2008; twelve of them (10%) were affected by larynx strangulation with gillnet parts. The larynx of all affected animals showed at least one of the following pathological 
changes: edema, mucosal injury and hypergranulation. In the majority of cases it was a chronic condition. Larynx strangulations are found only in adult animals and appear more often in animals with reduced ability 
to catch free swimming prey.

Martina Duras Gomercic, DVM, PhD
Department of Anatomy, Histology and Embryology
Faculty of Veterinary Medicine University of Zagreb
Heinzelova 55
10000 Zagreb
e-mail: martina.gomercic at vef.hr

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