Endangered
Gulper shark
Centrophorus granulosus
The gulper shark is a long and slender dogfish usually about three feet in length generally found in deep, murky waters all around the world.
Appearance
It is a light grayish brown, paler ventrally, with a long snout and large greenish eyes. This deep water shark has two dorsal fins with long, grooved spines and the second dorsal fin smaller than the first.
The gulper shark is a long and slender dogfish usually about three feet in length generally found in deep, murky waters all around the world.
Range and habitat
The gulper shark is a deepwater oceanic species, living in waters ranging between 100 and 1490 meters in depth, with the juveniles being the main occupant of the lower half of the depths. Acceptable habitats for gulper populations are found globally, wherever temperate and tropical waters are found. The gulper shark is most commonly found in the 300 to 800 meter depth range, inhabiting the upper continental slopes and outer continental shelves, the gulper is highly migratory species and has schooling habits based on multiple sharks being present around baited cameras.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Breeding
Sharks and rays grow slowly and have few young. A fishery that treats them as bycatch can empty a coastal form.
In crisis
The gulper shark is currently an endangered species mainly because of exploitation by humans and their abnormally long gestation period and low fecundity, preventing their population from recovering. Because of the depth of their habitat, they are considered little to no threat to humans. The gulper shark has been classified as vulnerable status by the IUCN since 2000 due to heavy overfishing and exacerbated through bycatch and low reproductive rates.
This mandate even so, does not support the main population of gulper sharks, that generally live 300–800 meters below the surface. This is an insufficient conservation attempt, as it does not help gulper populations under stress, it simply stops more stress from accumulating.
Gulper shark is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Gulper shark, Wikidata item Q592572. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.
