|Scientific Name:||Etmopterus princeps Collett, 1904|
|Taxonomic Notes:||In geographic regions other than North America sharks referred to as this species are Etmopterus baxteri or Etmopterus unicolor (Compagno and Niem 1998).|
|Red List Category & Criteria:||Data Deficient ver 3.1|
|Assessor(s):||Herndon, A.P. & Burgess, G.H.|
|Reviewer(s):||Kyne, P.M., Cavanagh, R.D., Heupel, M.R. & Simpfendorfer, C.A. (Shark Red List Authority)|
Etmopterus princeps is a relatively small (to 75 cm total length), deepwater (350 to 4,500 m) lanternshark occurring in the North and Eastern Central Atlantic. Biology is essentially unknown. This species is subject to bycatch fishing mortality by deepwater trawlers over much of its range and may be under considerable fishing pressure but specific information is not available. It could prove to be Near Threatened on the basis of reductions in population size however, given that so little is known about the species, and the overall lack of fisheries information, it cannot be assessed beyond Data Deficient at this time. Like many deepwater chondrichthyan species, more information on biology, ecology and importance in fisheries are required. Deepwater fisheries in the region need to be carefully monitored and managed.
|Range Description:||There have been unconfirmed reports from the Western Pacific, however, best available evidence indicates that this is an Atlantic endemic.|
Native:Canada (Nova Scotia); Faroe Islands; France; Gibraltar; Greenland; Iceland; Mauritania; Morocco; Portugal (Azores); Spain (Canary Is.); United Kingdom; United States (Connecticut, Massachusetts, New Jersey, New York)
|FAO Marine Fishing Areas:|
Atlantic – northeast; Atlantic – northwest; Atlantic – eastern central
|Range Map:||Click here to open the map viewer and explore range.|
|Current Population Trend:||Unknown|
|Habitat and Ecology:||Associated with the continental slope on or near the bottom generally at depths of 350 to 2,213 m, but also found on the Lower Rise of the Northeast Atlantic at 3,750 to 4,500 m (Compagno in preparation a). Like other etmopterids, little known of its biology. |
Life history parameters
Age at maturity (years): Unknown.
Size at maturity (total length): Female: unknown; Male: 55 cm TL (Compagno in prep. a).
Longevity (years): Unknown.
Maximum size (total length): 75 cm TL (Compagno in prep. a).
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.
Deepwater trawling in much of range is expanding and there is some concern about the effect on this species.
None known, probably discarded (probably too small to be utilised).
|Conservation Actions:||None in place. Like many deepwater chondrichthyan species more information on biology, ecology and importance in fisheries are required. Deepwater fisheries in the region need to be carefully monitored and managed.|
|Citation:||Herndon, A.P. & Burgess, G.H. 2006. Etmopterus princeps. The IUCN Red List of Threatened Species 2006: e.T60242A12332917.Downloaded on 19 November 2017.|
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