[MARMAM] New publication: First report on abundance and distribution of common bottlenose dolphins in the NATURA 2000 area, NE Adriatic Sea

mag. Darja Ribaric darja.ribaric at vivamar.org
Mon Aug 14 02:32:46 PDT 2017

Dear MARMAM and ECS community,


I am very pleased to announce the publication of the below baseline study in
the Journal of the Marine Biological Association of the United Kingdom: 


First report on abundance and distribution of common bottlenose dolphins
(Tursiops truncatus) in the NATURA 2000 area, Istria, North-eastern Adriatic

Darja Ribarič (a1) (a2) 

DOI: https://doi.org/10.1017/S0025315417001424 



The bottlenose dolphin (Tursiops truncatus M.) local population off west
Istria in the North-eastern Adriatic has received no prior study of
abundance and distribution despite the habitat's relevance for the
preservation of this key species in the marine ecosystem. The research area
comprises part of the NATURA 2000 network which was predominantly
established here for these dolphins. Official data regarding the local
population's status in the region are currently marked as deficient. Thus,
the aim of the present study was to provide the first population data for
the area. Boat-based survey work was carried out from April to September
2012–2015 using a mark–recapture photo-identification method. Prior to this
period a random data collection was used to study distribution, since 2001,
to cover the area of 927 km2 lying between Umag to lighthouse Albanež in the
south. 143 bottlenose dolphins were photo-identified to date with the
average group size of 9.27 ± 6.53 animals. Several abundance models were
used, from which the Markovian robust model proved the best fit and
predicted between 47–142 dolphins along the west Istria coast. A few
individuals were also identified in Slovenia, indicating a bigger home range
along the 98 km length of the studied area. There is an indication of a
regular year round presence of dolphins. The west Istria coast constitutes
an important feeding and breeding ground. The region should develop a
sustainable plan to manage those human activities negatively impacting the
dolphins. Therefore the present study is of relevance for the implementation
of management directives for their conservation.


To access the full text you can visit: http://vivamar.org/research-projects/


Kind regards,


DARJA RIBARIČ, MPhil in biological science

 <mailto:darja.ribaric at vivamar.org> darja.ribaric at vivamar.org
President and Head researcher
 <http://www.vivamar.org/> VIVAMAR Society for the Sustainable Development
for the Sea

Dolphin Research & Conservation / Marine Wildlife Awareness 


lp-in-creating-the-dec> HELP saving the Dolphins, be PART of a bold plan to
create a Dolphin Education Centre




Recognised by the Ministry of the

Environment for the public interest 215-10/2007/4



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