UDUPI: Spanner crab, which is a rare variety of deep sea crab, a native of Australia and Hawaiian coast was netted by the fishermen in Malpe, Udupi district on Tuesday. Hundreds of onlookers were surprised to the see the catch when it was brought to Malpe harbour by the fisherman Prashanth Kunder and others on Tuesday evening.
Dr Shivakumar Haragi, Assistant Professor at Karnatak University, PG Centre Department of Marine Biology, Karwar identified this crab variety as ‘spanner crab’ and the scientific name of this crab is Ranina Ranina.
Ranina Ranina is mainly nocturnal as it remains active during night and is found buried in sand during the day .It is easily distinguished from other crab species in its habitat due to its red carapace and elongated midsection.
Resembling a frog in its shape, this crab species is found mainly in Africa, Hawaiian coast and also in the Great Barrier Reef, located in the Coral Sea, off the coast of Queensland, Australia.
Its lifetime is seven to nine years and each crab weighs around 400-900 grams.Prashanth Kunder and his associates have also netted a rare fish variety called yellow-edged lyretail. Another unique variety fish netted by Prashanth is epinephelus flavocaeruleus.