Ocean Sunfish (Mola mola) in Cornwall
Growing up to a diameter of 2m, see Ocean Sunfish and much more wildlife in Cornwall with Orca Sea Safaris.
Growing up to a diameter of 2m, see Ocean Sunfish and much more wildlife in Cornwall with Orca Sea Safaris.
These can include species such as the strange looking Sunfish, a disc shaped fish that can grow up to 2 metres in diameter.
We never quite know what we might find as sea temperatures change, as more and more unusual species are being found around our Cornish Shores.
Sunfish are strange looking animals. Most often we see them lying on their sides floating on the surface of the water, either just basking in the sun or waiting to attract seabirds, such as Herring Gulls, to pick parasites off their skin. Their dorsal fin sticks out of the water when they're at the surface and flops from side to side as though it's trying to propell the fish along.
Identification:
Distribution:
Sunfish are found in tropical and temperate oceans all over the world. They are summer visitors to Cornish waters so we start seeing them on Sea Safaris when the sea starts warming up in the middle of the summer. They spend quite a lot of their time at the surface lying on their sides basking in the sun to warm up. They swim along plankton lines hunting for jellyfish.
Conservation:
Sunfish are often by-caught accidentally by drift gillnets used in swordfish fisheries. The by-catch rate in California is around 30% of the total catch, but in Mediterranean swordfish fisheries, 71 - 90% of the total catch is sunfish. Sunfish are also threatened by marine litter, especially plastic bags, which they can choke on when mistaken for jellyfish. Sunfish are eaten in some parts of the world, mainly in Taiwan and Japan.
Sunfish in Cornish folklore:
It is a well known story that the patron Saint of Cornwall, St. Piran, travelled from Ireland to Perran beach in Cornwall on a millstone. He then discovered tin, set up churches for the Cornish and performed many other miracles. Legend has it that it was a large, round sunfish rather than a millstone that towed the holy man to Cornwall! This is supported by the fact that the sunfish's Latin name is Mola mola, which means millstone!