Zoo Stock Species and the Red List
Zoo Stock Species and the Red List
Zoo Stock
This indicates that the species is included in the Second Zoo Stock Plan, which was formulated by the Tokyo Metropolitan Government in 2018. The plan sets goals for the next 10 years in three areas: "species conservation," "contribution to wildlife conservation," and "environmental education and conservation awareness." 124 animal species are included.
What is the Red List?
Based on scientific research, this is a list of wildlife classified by rank (category) indicating the degree of risk of extinction.
Livng Things Encyclopedia shows the categories (mainland and islands) assessed by the IUCN (International Union for Conservation of Nature) at the global level, the Ministry of the Environment for Japan, and the Tokyo Metropolitan Government for Tokyo.
The higher the category in each table, the higher the risk of extinction, and CR, EN, and VU are the three categories known as "endangered species." In Tokyo, species that are not at the NT (near threatened) level but are relatively rare are considered "species of concern."
|
IUCN categories |
|
|---|---|
|
EX |
extinction |
|
EW |
Extinction in the wild |
|
CR+EN |
— |
|
CR |
Serious crisis |
|
EN |
crisis |
|
VU |
emergency |
|
NT |
Near Threatened |
|
LC・○ |
Low Concern |
|
DD |
Data shortage |
|
LP |
— |
|
Japan (Ministry of the Environment) Category |
|
|---|---|
|
EX |
extinction |
|
EW |
Extinction in the wild |
|
CR+EN |
Endangered species |
|
CR |
Critically Endangered |
|
EN |
Endangered species |
|
VU |
Endangered species |
|
NT |
Near Threatened |
|
LC・○ |
— |
|
DD |
Lack of information |
|
LP |
Endangered |
|
Tokyo Category |
|
|---|---|
|
EX |
extinction |
|
EW |
Extinction in the wild |
|
CR+EN |
Endangered species |
|
CR |
Critically Endangered |
|
EN |
Endangered species |
|
VU |
Endangered species |
|
NT |
Near Threatened |
|
LC・○ |
Unranked |
|
DD |
Lack of information |
|
LP |
Endangered |
Creatures at Tokyo Sea Life Park
Creatures at Tokyo Sea Life Park
Striped Bonito
Sarda orientalis
Striped Bonito
Sarda orientalis
Although it has "bonito" in its name, it is not as well-known. It is characterized by its longer, thinner body and striped back. Although the catch volume is not large, it is known for being just as delicious as bonito.
| classification | Actinopterygii, Perciformes, Scombridae |
|---|---|
| English name | Striped Bonito |
| distribution | The Sea of Japan and Pacific coasts from southern Hokkaido to the southern coast of Kyushu, the East China Sea, etc. |
| Residence | coastal surface layer |
| Size |
Total length: 100cm
|
| food | Small fish, squid, etc. |
| Red List |
IUCN: LC (Least Concern)
|
Find the secret fin!
We call a certain fin that Pacific Bluefin Tuna and Striped Bonito swimming in aquariums their "secret fins." These are the first dorsal fin and the pelvic fins. When swimming straight, these secret fins are neatly tucked into pockets or depressions in their bodies, but they pop out when they turn. By retracting them when swimming fast and extending them when braking, they minimize water resistance, enabling them to swim skillfully.