Cystodytes lobatus

Cystodytes lobatus is a sessile ascidian that can be found attached to rocks in various marine environments. This species inhabits the Eastern Pacific, ranging from Canada to Mexico, and thrives in temperate to subtropical climates. It is typically found at depths ranging from the very low intertidal zone down to 200 meters, although most occurrences are shallower than 40 meters. Divers may encounter this species in rocky habitats, where it blends in with its surroundings due to its structure and coloration, which can make it somewhat cryptic against the substrate. As a hermaphroditic organism, Cystodytes lobatus is capable of both cross- and self-fertilization. Its reproductive cycle involves the development of eggs into lecithotrophic larvae, which then metamorphose into benthic adults. This life cycle allows for a continuous presence in its preferred habitats, providing opportunities for divers to observe it throughout the year. When diving, encounters with this species can be intriguing as they often appear in clusters, showcasing their colonial nature. In terms of conservation status, Cystodytes lobatus has not been evaluated by the IUCN, which means there is limited information regarding its population trends and threats. It is recorded in various dive sites, suggesting it may be relatively common in its preferred habitats.