British Columbia Doto

Doto columbiana

Doto columbiana is a small nudibranch that features a cream-colored body adorned with grey mottled markings, which can range from pale grey-brown to nearly black. The darker pigments often create rings around the bases of its cerata, helping divers identify this species among similar nudibranchs. Typically, it reaches a maximum length of 1.2 cm, making it a relatively small sea slug to spot during dives. This species is found along the Pacific coast of North America, with its distribution stretching from British Columbia down to Santa Barbara, California. It inhabits benthic environments, usually at depths ranging from 22 to 33 meters. Divers may encounter the British Columbia Doto in various habitats, including rocky reefs and kelp forests, where it can be seen grazing on hydroids, particularly those from the Aglaophenia genus. Doto columbiana is a simultaneous hermaphrodite, meaning it possesses both male and female reproductive organs. During mating, individuals engage in a unique behavior where they exchange roles, with one acting as the male and the other as the female. After mating, eggs are laid on suitable substrates, where they develop into planktonic larvae before maturing into adults. While specific conservation status details are not provided, the species has been recorded at multiple dive sites, indicating it may be relatively common in suitable habitats. Divers should approach these creatures with care to avoid disturbing them, as they are delicate and can be easily overlooked due to their small size and cryptic coloration.