Sakhalin sturgeon (Acipenser mikadoi) fish species and information / pictures of Sakhalin sturgeon - Acipenser mikadoi

Sakhalin sturgeon (Acipenser mikadoi) fish species information

Scientific Name
Acipenser mikadoi

Common Name
Sakhalin sturgeon

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 33-40; Anal spines: 0; Anal soft rays: 22 - 30. Body shields in 5 rows; dorsal shields 7 to 11, lateral 22 to 36 and ventral 10.

Classification

Classified By

Hilgendorf, 1892

Class

Ray-finned fishes (Actinopterygii)

Order

Sturgeons and Paddlefishes (Acipenseriformes)

Family

Sturgeons (Acipenseridae)

Distribution

Region

Northwest Pacific

Distribution

Northwest Pacific: Bering Sea, Tumnin (Datta) river, to northern Japan and Korea. This species was formerly regarded to be a population of Acipenser medirostris (Ref. 6866). International trade restricted (CITES II, since 1.4.98; CMS Appendix II).

Range

56°N - 33°N, 125°E - 145°E

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

demersal

Environment

Marine; freshwater; brackish; demersal; anadromous (Ref. 51243)

Trophic Level

3.25 s.e. 0.44 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

150 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: minor commercial; aquaculture: commercial

Vulnerability

Very high vulnerability (84 of 100)

Resilience

Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Critically Endangered (CR) (A2cde)