Overview

Distribution

Range Description

The Chinese Longnose Dogfish is known only from the South China Sea (holotype was collected at 18°51–47'N, 112°41–33'E) and possibly northwards to Japan, but confirmation is required to determine the full extent of its range (Chu et al. 1984).

Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Indo-West Pacific.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© FishWise Professional

Source: FishWise Professional

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Physical Description

Size

Maximum size: 607 mm TL
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© FishWise Professional

Source: FishWise Professional

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
The only known specimens of the Chinese Longnose Dogfish were taken at depths between 394 and 525 m. The ecology of the species is virtually unknown.

Systems
  • Marine
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Depth: 0 - 394m.
Recorded at 394 meters.

Habitat: bathydemersal.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© FishWise Professional

Source: FishWise Professional

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
DD
Data Deficient

Red List Criteria

Version
3.1

Year Assessed
2012

Assessor/s
Bigman, J.S. & Ebert, D.A.

Reviewer/s
Fowler, S.L., Mull, C. & Simpfendorfer, C.

Contributor/s

Justification

The Chinese Longnose Dogfish (Squalus acutirostris) is a very poorly known deepsea shark from the South China Sea. Its taxonomic status needs to be evaluated as it is considered by some to be a junior synonym of the Shortspine Spurdog (Squalus mitsukurii). It is tentatively considered to be a valid species here pending further investigation. The species’ distribution, depth range and habitat are poorly defined, and there is no information available on the impacts of fisheries upon it. It is therefore assessed as Data Deficient.

Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Population

Population
There are no known population estimates or trends for the Chinese Longnose Dogfish. The only known specimens were taken April 13–21 1982 (Chu et al. 1984).

Population Trend
Unknown
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Threats

Major Threats

The specific collection locations of Chinese Longnose Dogfish specimens only include a general region and depth. The threats to this species cannot be identified at this time despite extensive fishing effort in the South China Sea.

Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Management

Conservation Actions

Conservation Actions
There are no conservation actions in place for the Chinese Longnose Dogfish, and none can be recommended on the basis of current information. However, in the first instance, taxonomic clarification is required (Last et al. 2010).
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!