Asian sheepshead wrasse

The Asian sheepshead wrasse (Semicossyphus reticulatus) is one of the largest species of wrasse.[2] Native to the western Pacific Ocean, it inhabits rocky reef areas around the Korean Peninsula, China, Japan, and the Ogasawara Islands.[2][1] It can reach 100 cm (39 in) in total length and the greatest weight recorded for this species is 14.7 kg (32 lb).[2] This species is valued for its sweet, shellfish-like taste.[1]

Asian sheepshead wrasse in captivity giving indication of size

Asian sheepshead wrasse
Conservation status
Data Deficient  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Labriformes
Family:	Labridae
Genus:	Semicossyphus
Species:	S. reticulatus
Binomial name
Semicossyphus reticulatus (Valenciennes, 1839)
Synonyms
Cossyphus reticulatus Valenciennes, 1839

The Asian sheepshead wrasse, also known as the kobudai in Japan, is a hermaphroditic species, meaning that it has both male and female organs which allows it to change its sex. All Sheepshead are born female and as they grow older, eventually will change sex. The species gained media attention when the transformation was caught on camera by the BBC Earth crew while filming in the waters near Sado Island, Japan. In 2017, it was shown on the Blue Planet II episode "One Ocean".[3]

According to Great Big Story, Japanese diver Hiroyuki Arakawa has had a 30-year relationship with a sheepshead wrasse in Japan's Tateyama Bay, where he is the caretaker for an underwater Shinto shrine. He calls the fish, named "Yoriko", by hitting a bell on the underwater shrine.[4]