On Sunday 13th September a group of Risso’s dolphins were reported to SWF and one of the individuals was photographed from Point Lynas, Anglesey. The animal was identified using markings predominantly on the dorsal fin as F01 from the catalogue held by the SWF. It is only the second Risso’s dolphin that had been successfully matched in north Anglesey at the same time of year for two years running. This has fuelled the hypothesis that the same group of Risso’s dolphins may travel to the north Anglesey coastline each year in September.
Sadly, in the days that followed this same animal stranded at CemlynBay and was found dead by a member of the public on the 17th September, who contacted the strandings network. On Friday 18th September Dr. Paul Jepson and Rod Penrose carried out a post-mortem on the 2.9 metre male.
Relatively fresh squid beaks were found in its stomach, suggesting it had fed not long before its death. Despite this, the animal was fairly thin. It is rare for deep water species to strand and be found in a good enough condition for post mortem and so all major organs have been examined and tissues samples collected for analysis. The findings of the post-mortem will follow in a future news item.