The humble harbour porpoise | Cetacean Strandings Investigation Programme

Bottlenose dolphin hitting a harbour porpoise out of the water in an attack

As part of the Cetacean Strandings Investigation Programme (CSIP), we are often focused on the death of animal and can overlook the amazing lives of marine creatures before they sadly wash up along our coastlines. British waters are home to over 28 different species of whales, dolphins and porpoises, collectively known as cetaceans.

In the UK, the most numerous (and smallest) of these is the harbour porpoise (Phocoena phocoena). Unsurprisingly, these porpoises therefore make up the majority of strandings in the UK. 

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Stranded Sharks | Cetacean Strandings Investigation Programme

Across the UK, many different creatures wash up on our shores. The Cetacean Strandings Investigation Programme (CSIP) is responsible for documenting stranded animals in the UK and retrieves a portion of those that strand for post-mortem examination every year. The main bulk of the project is made up of cetaceans – a group of marine mammals comprised of whales, dolphins and porpoises.

However, many people don’t realise the project also responds to strandings of sharks. Since 2007, the CSIP has recorded the stranding of basking sharks (Cetorhinus maximus) across the UK and more recently secured funding  to expand the research to other large-bodied sharks such as porbeagles (Lamna nasus), angel sharks (Squatina squatina) and blue sharks (Prionace glauca).

WARNING: This blog contains photographs of dead stranded sharks which you may find upsetting

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97 year old fin whale vertebrae uncovered in Devon sand dunes

The Cetacean Strandings Investigation Programme (CSIP) was recently called out to the stranding of a harbour porpoise, Phocoena phocoena, in Westward Ho! in north Devon. The porpoise was a suitable candidate to collect for post-mortem, and so plans were made for the strandings team to travel to pick it up.

As part of the trip to Westward Ho!, a ranger from Northam Burrows Country Park asked if the Museum was able to provide an identification on three whale vertebrae they had, to allow them to display the bones in their visitors centre. Little did anyone know the full story behind the vertebrae was about to be uncovered!

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Strange Strandings – The case of a Risso’s dolphin in the southern North Sea | Cetacean Strandings Investigation Programme

A recent stranding gained media attention last week as a Risso’s dolphin (Grampus griseus) washed up on a beach in Norfolk. The Cetacean Strandings Investigation Programme (CSIP) receives around 10 reports of Risso’s dolphins stranding every year, but most of these reports are concentrated in Scotland and the west coast of the UK. This unusual stranding in the southern North Sea meant it was crucial for the CSIP team to retrieve this animal for post-mortem. Post-mortems are essential for us to understand how the animal died, and the possible series of events which may have contributed or occurred leading up to its death.

WARNING: This blog contains photographs of dead stranded cetaceans and post-mortem findings which you may find upsetting

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A beach walkers guide to identification of whales, dolphins & porpoises | Cetacean Strandings Investigation Programme

When a call comes in to the Cetacean Strandings Investigation Programme (CSIP) hotline, the details of a stranding can often be minimal and somewhat vague. An animal may be highly decomposed, inaccessible or lack features for it to be identified. As a research assistant for CSIP, my job is to investigate a stranding and try to gather as much information as possible so an accurate identification can be made. This blog post provides a simple guide for everyone to try and identify dolphins, whales and porpoises commonly washed up on British coastlines.

WARNING: This blog contains photographs of dead and injured stranded cetaceans which you may find upsetting

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