Overview

Comprehensive Description

Biology

Ovoviviparous (Ref. 205).
  • Springer, S. and G.H. Burgess 1985 Two new dwarf dogsharks (Etmopterus, Squalidae), found off the Caribbean coast of Colombia. Copeia 1985(3):584-591. (Ref. 27618)
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Distribution

Range Description

As presently known, restricted to a small area of the Caribbean Sea off Colombia. More research is required to better define geographic range, but probably a naturally restricted species.
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Western Central Atlantic: Colombia.
  • Springer, S. and G.H. Burgess 1985 Two new dwarf dogsharks (Etmopterus, Squalidae), found off the Caribbean coast of Colombia. Copeia 1985(3):584-591. (Ref. 27618)
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Colombia (Atlantic).
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Physical Description

Size

Maximum size: 212 mm TL
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Max. size

21.2 cm TL (male/unsexed; (Ref. 27618)); 19 cm TL (female)
  • Springer, S. and G.H. Burgess 1985 Two new dwarf dogsharks (Etmopterus, Squalidae), found off the Caribbean coast of Colombia. Copeia 1985(3):584-591. (Ref. 27618)
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Diagnostic Description

A very small, black shark with a short and bluntly rounded snout (its length 5.7-7.5% TL in adults); head and body nearly cylindrical anteriorly, tapering unevenly to a slender caudal peduncle; moderately large eyes; dermal denticles, very small needle-like to spine-like, covering whole body except narrowly along lips, gill slit margins, around cloacal opening, and dorsal surface of claspers. Pectoral fins lobate; small pelvic fins.
  • Springer, S. and G.H. Burgess 1985 Two new dwarf dogsharks (Etmopterus, Squalidae), found off the Caribbean coast of Colombia. Copeia 1985(3):584-591. (Ref. 27618)
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Type Information

Paratype for Etmopterus carteri Springer & Burgess
Catalog Number: USNM 206091
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Preparation: Photograph
Year Collected: 1964
Locality: Off Barranquilla, Atlantico, Colombia, Caribbean Sea, Atlantic
Depth (m): 329 to 356
  • Paratype: Springer, S. & Burgess, G. H. 1985. Copeia. 1985 (3): 585, figs. 1-2.
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Paratype for Etmopterus carteri Springer & Burgess
Catalog Number: USNM 206092
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1964
Locality: Off Barranquilla, Atlantico, Colombia, Caribbean Sea, Atlantic
Depth (m): 283 to 292
  • Paratype: Springer, S. & Burgess, G. H. 1985. Copeia. 1985 (3): 585, figs. 1-2.
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Holotype for Etmopterus carteri Springer & Burgess
Catalog Number: USNM 206090
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Preparation: Photograph
Year Collected: 1964
Locality: Off Barranquilla, Atlantico, Colombia, Caribbean Sea, Atlantic
Depth (m): 283 to 292
  • Holotype: Springer, S. & Burgess, G. H. 1985. Copeia. 1985 (3): 585, figs. 1-2.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
A poorly known small deepwater shark recorded from the upper continental slopes at depths of 283 to 356 m (Springer and Burgess 1985, Compagno in prep a). It is possibly also epipelagic. Essentially nothing known of its biology. Development is probably ovoviviparous (aplacental viviparous) (Compagno in prep a). Maximum known size 21.2 cm total length (TL). Size at birth is unknown. Adults of both sexes recorded at sizes 18 to 21 cm TL (Springer and Burgess 1985).

Life history parameters
Age at maturity (years): Unknown.
Size at maturity (total length): Adults known from 18 to 21 cm TL.
Longevity (years): Unknown.
Maximum size (total length): 21.2 cm TL.
Size at birth (cm): Unknown.
Average reproductive age (years): Unknown.
Gestation time (months): Unknown.
Reproductive periodicity: Unknown.
Average annual fecundity or litter size: Unknown.
Annual rate of population increase: Unknown.
Natural mortality: Unknown.

Systems
  • Marine
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Environment

bathypelagic; marine; depth range 283 - 356 m (Ref. 27618)
  • Springer, S. and G.H. Burgess 1985 Two new dwarf dogsharks (Etmopterus, Squalidae), found off the Caribbean coast of Colombia. Copeia 1985(3):584-591. (Ref. 27618)
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Depth range based on 5 specimens in 1 taxon.
Water temperature and chemistry ranges based on 5 samples.

Environmental ranges
  Depth range (m): 287.5 - 342.5
  Temperature range (°C): 13.266 - 13.266
  Nitrate (umol/L): 22.652 - 22.652
  Salinity (PPS): 35.623 - 35.623
  Oxygen (ml/l): 2.896 - 2.896
  Phosphate (umol/l): 1.025 - 1.025
  Silicate (umol/l): 8.331 - 8.331

Graphical representation

Depth range (m): 287.5 - 342.5
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth: 283 - 356m.
From 283 to 356 meters.

Habitat: pelagic.
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Life History and Behavior

Life Cycle

Distinct pairing with embrace (Ref. 205).
  • Breder, C.M. and D.E. Rosen 1966 Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p. (Ref. 205)
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Etmopterus carteri

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

Conservation Status

IUCN Red List Assessment


Red List Category
DD
Data Deficient

Red List Criteria

Version
3.1

Year Assessed
2006

Assessor/s
Cavanagh, R.D.

Reviewer/s
Kyne, P.M., Heupel, M.R. & Simpfendorfer, C.A. (Shark Red List Authority)

Contributor/s

Justification
A poorly known apparently rare deepwater species recorded only from the Caribbean coast of Colombia on the upper continental slope at depths of 283 to 356 m. Substantial exploratory trawling in the southern Caribbean Sea caught only a limited number of specimens. Biology is essentially unknown. No information is available on interactions with fisheries, although is likely to be infrequently encountered due to its rarity and very small size (maximum size 21 cm total length). Its restricted geographic and bathymetric range, as presently known, may be cause for concern if it is being taken as bycatch in any fisheries. However, insufficient information is presently available to assess the species beyond Data Deficient.
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Population

Population
Not known, but apparently a rare deepwater species. Substantial exploratory trawling in the southern Caribbean Sea has revealed only a limited number of specimens (Springer and Burgess 1985).

Population Trend
Unknown
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Threats

Major Threats
None known. Of no importance for fisheries because of its extremely small size. Probably encountered only very infrequently by fisheries.

Utilisation
None known, probably discarded (probably too small to be utilised).
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Data deficient (DD)
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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Management

Conservation Actions

Conservation Actions
None in place. Like many deepwater chondrichthyan species more information on biology, ecology and importance in fisheries are required. Any expanding deepwater fisheries in the region (which could impact its habitat and population) need to be carefully monitored and managed.
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Wikipedia

Cylindrical lanternshark

The cylindrical lanternshark, Etmopterus carteri, is a shark of the family Etmopteridae found along the Caribbean coast of Colombia in South America, at depths of between 285 and 355 m. Its maximum length is 21 cm.

Reproduction is presumed to be ovoviviparous, with three to 20 pups of 10 – 20 cm in length per litter.[1]

References[edit]

  1. ^ Florida Atlantic University (2007). "The Lantern Sharks". 
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