Endangered Species Listed in the Toba city Marine Red Data Book 2023

In 2023, Toba City published a Red Data Book listing 429 endangered marine species inhabiting the coastal and estuarine areas around Toba City. The book describes the endangered categories of the listed species according to the degree of threat of extinction and the causes of population decline.

In addition to the scientific information, the book includes many pictures of underwater surveys and seascapes, history and culture between local people and the sea, and sea-related folklore in the Toba area as column articles of the book. Unique feature of the Toba Red Data Book is that it specializes in marine organisms including algae or off-shore specie, and evaluate the vulnerability of marine species at the prefectural level.