[MARMAM] New paper on common dolphins (Delphinus delphis) in the northern Adriatic Sea
tilen.genov at gmail.com
Thu Aug 13 03:31:56 PDT 2020
On behalf of my co-authors, I would like to draw your attention to a new
paper on common dolphins (*Delphinus delphis*) in the northern Adriatic Sea:
Genov T, Kotnjek P, Centrih T. 2020. Occurrence of common dolphins (*Delphinus
delphis*) in the Gulf of Trieste and the northern Adriatic Sea.
Aquatic Conservation: Marine and Freshwater Ecosystems.
The paper is Open Access and freely available at:
1. The Mediterranean common dolphin (*Delphinus delphis * ), considered
to have been very *common * in the past, had undergone a dramatic
decline across most of the basin by the end of 1970s. In the northern
Adriatic Sea, one of the regions with most available historical
information, the common dolphin is thought to have been the most common and
abundant cetacean throughout most of the 20th century. However, by the end
of 1970s, it had virtually disappeared from the region and is now
considered generally absent from the entire Adriatic Sea.
2. This contribution summarizes the occurrence of common dolphins in the
Gulf of Trieste and provides a brief review of published records in other
parts of the Adriatic Sea.
3. Systematic boat surveys in the wider area of the Gulf of Trieste
between 2002 and 2019 confirmed that the common bottlenose dolphin
truncatus * ) is the only regularly occurring cetacean species in this
area. Despite this, several records of common dolphins were documented in
the Gulf of Trieste between 2009 and 2012, through sightings of live
animals or recovery of dead stranded animals.
4. Dorsal fin markings allowed the photo‐identification of some of
these, suggesting that at least four different live individuals (three
adults and one calf) occurred here in recent times. Most cases involved
single adult individuals, but one included a mother‐calf pair that was
temporarily resident in a port for several months, a behaviour atypical for
this species. Photo‐identification showed that the presumed mother had
previously been sighted in the Ionian Sea in Greece, over 1,000 km from the
Gulf of Trieste, making this the longest documented movement for this
5. At present, the common dolphin continues to be rare in the region.
Please email me at tilen.genov at gmail.com if you have any difficulty
accessing the paper.
| Morigenos - Slovenian Marine Mammal Society |
| Sea Mammal Research Unit, University of St Andrews |
| IUCN Cetacean Specialist Group |
| twitter: @TilenGenov <https://twitter.com/TilenGenov> | @Morigenos_org
<https://twitter.com/Morigenos_org> | @_SMRU_ <https://twitter.com/_SMRU_>
| @IUCNCetaceanSG <https://twitter.com/IUCNCetaceanSG> |
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