On September the 19th a juvenile common seal (Phoca vitulina) was found on the 
river Ebro's delta. This is a protected area on the Catalonian coast where 
there have never been sightings of this species. Some fishermen saw the seal 
around 19:00h, resting on the sandy shore zone, and apparently it did not show 
any signs of harm. The official organization responsible for the assistance and 
rehabilitation of marine animals in Catalunya (Spain), CRAM Foundation, was 
alerted, but when the veterinarians and rescue team arrived to the site, the 
seal had returned to the water. Early the next morning, the rescue team came 
back to the area and were able to locate the seal nearby. They were able to 
assess its health state and they confirmed a very poor nutritional condition, 
weakness and alterations of its behaviour and respiratory pattern. They decided 
to take the seal urgently to the rehabilitation centre located in Premià de Mar 
(Barcelona) where they would be able to continue the assessment and start the 
appropriate treatments. Unfortunately the animal died en route to the 
rehabilitation centre so instead it was taken to the University (Universidad 
Autónoma de Barcelona) where the pathology specialists could make the post 
mortem exam in order to find the cause of death. 

The post-mortem exam revealed the seal was a young female weighing 15 kg and 
measuring 95 cm in length. It showed a serious intestinal impaction in the 
cecum, 26 cm long, fibrinous enteritis, a serious parasitism by nematodes in 
the stomach that produced a diffused gastritis and lung collapse. Further 
microbiology and histopathology exams are currently being carried out by 
experts on these subjects. 

The Common seal (Phoca vitulina) lives in Arctic and Subarctic waters of the 
Pacific and Atlantic seas and this event is completely unusual in the 
Mediterranean area, so further investigations are currently being carried out 
in order to find the causes by which the seal could travel to this latitude. It 
is unknown how a female that has not yet reached the adult state could be found 
in Catalonian waters and any help to find the cause would be welcome from CRAM 
Foundation.

Veterinary Team ([EMAIL PROTECTED])

CRAM Foundation. Barcelona (Spain)

www.cram.org

 

 

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