Stickleback and Ibara Stickleback Habitat

A small freshwater fish with several dorsal spines, living in spring-fed waters and cold channels. In the breeding season males weave nests from water plants and guard the eggs. Spring-water sites in Toyama, Ishikawa and elsewhere are protected, some together with fireflies.

A small freshwater fish with sharp spines along its back, living in cold, clear spring-fed waters. The male builds a nest of plants and guards eggs and fry. Its habitats, such as those in Akita, are protected together with those of the related stickleback.