Overview

Comprehensive Description

Biology

Found on the continental slopes. Oviparous, with one egg per oviduct laid at a time. Sexual dimorphism in adults unusually well-developed.
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Distribution

Cuba, northern Gulf of Mexico, and Panama
  • North-West Atlantic Ocean species (NWARMS)
Creative Commons Attribution 3.0 (CC BY 3.0)

© WoRMS for SMEBD

Source: World Register of Marine Species

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Range Description

Western Central Atlantic: Known from Dominican Republic, Cuba, the northern Gulf of Mexico (Florida to Mississippi, USA), Mexico, Honduras, Panama, Colombia and Venezuela (Compagno et al. 2005).
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

Average rating: 2.5 of 5

Western Central Atlantic: Cuba, northern Gulf of Mexico, and Panama.
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Western Atlantic.
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

Average rating: 2.5 of 5

Physical Description

Size

Maximum size: 460 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

Average rating: 2.5 of 5

Max. size

46.0 cm TL (male/unsexed; (Ref. 244)); 41 cm TL (female)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Diagnostic Description

Relatively slender, moderately long, narrow snout and relatively narrow, low caudal fin. Color uniform dark brown (Ref. 37039). First to third gill openings long as the distance between the nostrils (Ref. 6032).
  • Bigelow, H.B. and W.C. Schroeder 1948 Sharks. p. 59-546. In J. Tee-Van, C.M. Breder, S.F. Hildebrand, A.E. Parr and W.C. Schroeder (eds.) Fishes of the Western North Atlantic. Part one. Lancelets, cyclostomes, sharks. Sears Foundation for Marine Research, Yale University, New Haven. 576 p. (Ref. 6032)   http://www.fishbase.org/references/FBRefSummary.php?id=6032&speccode=891 External link.
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Ecology

Habitat

benthic
  • North-West Atlantic Ocean species (NWARMS)
Creative Commons Attribution 3.0 (CC BY 3.0)

© WoRMS for SMEBD

Source: World Register of Marine Species

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Found at depths of 860 - 1098m.
  • North-West Atlantic Ocean species (NWARMS)
Creative Commons Attribution 3.0 (CC BY 3.0)

© WoRMS for SMEBD

Source: World Register of Marine Species

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Habitat and Ecology

Habitat and Ecology
Known from the continental slope at depths of 732 to 1,461 m (Compagno et al. 2005). Maximum size 46 cm total length (TL); adult males 43 to 46 cm TL, adult females 40 to 41 cm TL. Little is known of its biology. Oviparous, with a single egg per oviduct laid at a time (Compagno in prep. b).

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

Average rating: 2.5 of 5

Environment

bathydemersal; marine; depth range 700 - 1500 m (Ref. 55584)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Depth range based on 10 specimens in 1 taxon.
Water temperature and chemistry ranges based on 4 samples.

Environmental ranges
  Depth range (m): 732 - 1006
  Temperature range (°C): 4.756 - 5.441
  Nitrate (umol/L): 24.827 - 27.969
  Salinity (PPS): 34.840 - 34.953
  Oxygen (ml/l): 3.755 - 4.229
  Phosphate (umol/l): 1.601 - 1.957
  Silicate (umol/l): 22.517 - 28.695

Graphical representation

Depth range (m): 732 - 1006

Temperature range (°C): 4.756 - 5.441

Nitrate (umol/L): 24.827 - 27.969

Salinity (PPS): 34.840 - 34.953

Oxygen (ml/l): 3.755 - 4.229

Phosphate (umol/l): 1.601 - 1.957

Silicate (umol/l): 22.517 - 28.695
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Depth: 860 - 1098m.
From 860 to 1098 meters.

Habitat: bathydemersal. Found on the continental slopes. Oviparous, with one egg per oviduct laid at a time. Sexual dimorphism in adults unusually well-developed. Not utilized at present.
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

Average rating: 2.5 of 5

Life History and Behavior

Life Cycle

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Sexual dimorphism is evident in dentition of males (Ref. 49562). Males have longer teeth with fewer cusps (Ref. 51093) to make 'courtship biting' more effective (Ref. 49562).
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Apristurus riveri

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 1
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

Average 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
2007

Assessor/s
Leandro, L. & Kyne, P.M.

Reviewer/s
Cavanagh, R.D. & Fowler, S.L. (Shark Red List Authority)

Contributor/s

Justification
An uncommon and poorly known deepwater catshark recorded from 732 to 1,461 m in the Western Central Atlantic where it is known from the northern Gulf of Mexico, Cuba, Dominican Republic, Mexico, Honduras, Panama, Colombia and Venezuela. Reaches 46 cm total length (TL) but nothing known of its biology. Of no interest to fisheries at present. Insufficient information available to assess the species beyond Data Deficient at this time.

History
  • 2004
    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

Average rating: 2.5 of 5

Population

Population
Reported as uncommon (Compagno in prep. b).

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

Average rating: 2.5 of 5

Threats

Major Threats
Of no interest to fisheries (Compagno, in prep. b).
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

Average 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

Average rating: 2.5 of 5

Management

Conservation Actions

Conservation Actions
Further research is required on this poorly known species in order to better document its distribution, biology and bycatch levels.
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

Average 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

Average rating: 2.5 of 5

Wikipedia

Broadgill catshark

The broadgill catshark, Apristurus riveri, is a catshark of the family Scyliorhinidae found in the Gulf of Mexico and the Caribbean Sea, between 30 and 9° N, on the continental slopes at depths between 700 and 1,500 m. Its length is up to 46 cm. The broadgill catshark is oviparous.

See also[edit]

References[edit]

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

Source: Wikipedia

Unreviewed

Article rating from 0 people

Average 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!