UK Crustaceans

etc 05
Spider Crab – Skomer.

There appeared to be a teeming number of Spider Crabs around Skomer, and the largest one always seemed to be smaller than the next.

Baby Spider Crab
Long-legged Crab – Skomer.

We saw this little guy while descending. We first assumed that this was a baby spider crab due to the numerous adult spider crabs we saw during each dive around Skomer, however it does resemble pictures of a Long-legged Crab. Any thoughts? Very much enjoyed watching this creature ‘floating’ in the water column.

Spider Crab
Spider Crab – Skomer
Velvet Swimming Crab (Necora puber)
Velvet Swimming Crab (Necora puber) – Porth Kerris. Cornwall

We wouldn’t have spotted this crab and its red eyes if we hadn’t explored the cracks in Porth Kerris with our torches. Always take some precious air time to investigate the nooks and crevices.

Eating Crab - Life boat station, Selsey
Eating Crab- Life boat station, Selsey
 Velvet Swimming Crab (Necora puber) Life boat station, Selsey
Velvet Swimming Crab (Necora puber) – Life boat station, Selsey A very large one – large enough to try and make me back off his territory.
 Velvet Swimming Crab (Necora puber) - Life boat station, Selsey
Velvet Swimming Crab (Necora puber) – Life boat station, Selsey
Leach's long legged spider crab - Life boat station, Selsey
Leach’s long legged spider crab – Life boat station, Selsey

Leach’s spider crabs pick off parasitic leeches off of fish, providing the fish with a cleaning service, and in return getting fed.

Leach's long legged spider crab - Life boat station, Selsey
Leach’s long legged spider crab – Life boat station, Selsey

Leach’s spider crabs are often seen sitting on top of anemones. This is thought to be because the stinging tentacles prevent predators getting too close.

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