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The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological species. [1]
Opisthoteuthis chathamensis, commonly known as the roughy umbrella octopus, [2] is a species of cirrate octopus restricted to demersal habitats surrounding the Chatham Rise in New Zealand. [ 3 ] Distribution, description & threats
The IUCN Red List of Threatened Species by the International Union for Conservation of Nature is the best known worldwide conservation status listing and ranking system. . Species are classified by the IUCN Red List into nine groups set through criteria such as rate of decline, population size, area of geographic distribution, and degree of population and distribution fragmenta
The common octopus (Octopus vulgaris) is a mollusk belonging to the class Cephalopoda. Octopus vulgaris is one of the most studied of all octopus species, and also one of the most intelligent. It ranges from the eastern Atlantic, extends from the Mediterranean Sea and the southern coast of England , to the southern coast of South Africa.
An octopus (pl.: octopuses or octopodes [a]) is a soft-bodied, eight-limbed mollusc of the order Octopoda (/ ɒ k ˈ t ɒ p ə d ə /, ok-TOP-ə-də [3]).The order consists of some 300 species and is grouped within the class Cephalopoda with squids, cuttlefish, and nautiloids.
Currently, the blue-ringed octopus population information is listed as Least Concern according to the International Union for the Conservation of Nature (IUCN). [26] However, threats such as bioprospecting , habitat fragmentation , degradation , overfishing , and human disturbance, as well as species collections for aquarium trade, may be ...
The International Union for Conservation of Nature (IUCN) is the foremost authority on threatened species, and treats threatened species not as a single category, but as a group of three categories, depending on the degree to which they are threatened: [2]: 8–11
Multiple factors are considered when assessing the status of a species; e.g., such statistics as the number remaining, the overall increase or decrease in the population over time, breeding success rates, or known threats. [7] The IUCN Red List of Threatened Species is the best-known worldwide conservation status listing and ranking system. [8]