Articles on this page are available in 1 other language: Chinese (Simplified) (4) (learn more)

Overview

Comprehensive Description

Biology

Found on the continental slope (Ref. 6871, 75154). Little is known of its biology; presumably ovoviviparous (Ref. 6871).
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Distribution

Range Description

Fairly broadly distributed in deep water in western Pacific. Restricted to a depth range of 500 to 1,200 m with possibly only limited exchange between subpopulations.
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

Western Pacific: Japan and Australia (including Western Australia).
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Western Pacific; antitropical.
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: 600 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

Max. size

60.0 cm TL (male/unsexed; (Ref. 6871))
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Habitat: on or near bottom on continental and insular slopes and seamounts, depth range 500 to 1,200 m. A little-known deepwater dogfish. Matures at 40 to 45 cm, maximum length 60 cm, litters of 3 to 22 pups, average 12. No seasonal reproductive cycle, no information on annual fecundity, gestation period, age at maturity or longevity. Like other deepwater dogfishes, this species likely has a very low resilience to depletion and a low intrinsic rate of population increase, hence highly vulnerable to bycatch in deepwater fisheries.

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

Environment

bathydemersal; marine; depth range 730 - 1200 m (Ref. 6871), usually 900 - 1200 m (Ref. 6871)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Depth range based on 6 specimens in 1 taxon.
Water temperature and chemistry ranges based on 3 samples.

Environmental ranges
  Depth range (m): 920 - 1130
  Temperature range (°C): 3.882 - 5.777
  Nitrate (umol/L): 30.134 - 33.558
  Salinity (PPS): 34.432 - 34.480
  Oxygen (ml/l): 3.772 - 4.226
  Phosphate (umol/l): 1.914 - 2.023
  Silicate (umol/l): 30.075 - 50.515

Graphical representation

Depth range (m): 920 - 1130

Temperature range (°C): 3.882 - 5.777

Nitrate (umol/L): 30.134 - 33.558

Salinity (PPS): 34.432 - 34.480

Oxygen (ml/l): 3.772 - 4.226

Phosphate (umol/l): 1.914 - 2.023

Silicate (umol/l): 30.075 - 50.515
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Depth: 730 - 1200m.
From 730 to 1200 meters.

Habitat: bathydemersal. Found on the continental slope (Ref. 6871). Little is known of its biology; presumably ovoviviparous (Ref. 6871).
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

Life History and Behavior

Life Cycle

Distinct pairing with embrace (Ref. 205).
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Centroscyllium kamoharai

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 2
Species With Barcodes: 1
Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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
2003

Assessor/s
Fowler, S.L. (SSG Australia & Oceania Regional Workshop, March 2003)

Reviewer/s
Stevens, J., Simpfendorfer, C., Fowler, S. & Musick, J.A. (Shark Red List Authority)

Contributor/s

Justification
A little-known deepwater dogfish likely to be highly vulnerable to population depletion through fisheries bycatch because of its highly K-selected biology. Fairly broad but patchy occurrence through the Western Pacific, but records are sparse and the species is not abundant in bycatch in any deepwater fishery. The lack of data on extent of occurrence, population size, or any indicator of population trend is considered to warrant a Data Deficient assessment, despite concerns that bycatch has been occurring and will continue to occur in deepwater fisheries, possibly through most of the species? range.
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
No information on population or subpopulation size, but apparently not abundant (records are infrequent).

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
Bycatch in deep trawl fisheries, but no data on catches and trends.
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

Data deficient (DD)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Management

Conservation Actions

Conservation Actions
No conservation measures are currently in place for this species.
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

Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: of no interest
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Wikipedia

Bareskin dogfish

The bareskin dogfish, Centroscyllium kamoharai, is a little-known, deepwater dogfish shark of the family Dalatiidae, so far found only in the western Pacific in Suruga Bay, Honshū, Japan.

The bareskin dogfish has no anal fin. It has grooved dorsal spines with the second larger than the first, a smaller first dorsal fin, blunt nose, large eyes, large nostrils, widely spaced and sparse denticles, and is dark in color with white-tipped fins. It is stout and grows to a maximum of 40 cm.

Little else is known about this rare shark.

References

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

Source: Wikipedia

Unreviewed

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!