Portugal country information

Common names: Darkie charlie, Gata, Gata-lixa
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist: Portugal
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/po.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., 1984
National Database: Portuguese Freshwater Fishes

Classification / Names

Elasmobranchii (sharks and rays) > Squaliformes (Bramble, sleeper and dogfish sharks) > Dalatiidae (Sleeper sharks)
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Далатия (=чёрная пряморотая акула), Squale liche, Carocho, ... more

Main reference

Compagno, L.J.V. 1984. (Ref. 247)
References | Biblio | Coordinator : Compagno, Leonard J.V. | Collaborators

Size / Weight / Age

Max length : 182 cm TL male/unsexed; (Ref. 10717)

Length at first maturity
L_m ?, range 117 - 159 cm

Environment

Marine; bathydemersal; depth range 37 - 1800 m (Ref. 247), usually 300 - 600 m (Ref. 247)

Climate / Range

Deep-water, preferred 22°C (Ref. 107945); 72°N - 56°S, 98°W - 153°W

Distribution

Western Atlantic: Georges Bank and northern Gulf of Mexico. Eastern Atlantic: Iceland (Ref. 12462), Scotland, and Irish Atlantic slope to Morocco, western Mediterranean, Madeira to Cameroon. Western Indian Ocean: Mozambique and South Africa. Western Pacific: Japan, Australia, and New Zealand. Central Pacific: Hawaii.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 0. Moderately sized, short- and blunt-snouted shark with two almost equal-sized dorsal fins; papillose thick lips; small slender-cusped upper teeth and very large lower teeth with erect triangular serrated cusps and distal blades; first dorsal fin on back with its origin behind the pectoral rear tips and its base closer to the pectoral base than the pelvic fins; and caudal fin with the ventral lobe not expanded (Ref. 247). Dark grey-brown to black; trailing edges of fins translucent (Ref. 26346).

Found on outer continental and insular shelves and slopes (Ref. 247). Mainly found on or near the bottom but readily occurs well off the substrate (Ref. 247, 58302). Often pelagic (Ref. 58302). Found singly or in small schools (Ref. 6871). Feeds mainly on deepwater bony fish, but also skates, other sharks, cephalopods and crustaceans (Ref. 5578). Ovoviviparous (Ref. 205), with 10-20 young born at 30-42 cm (Ref. 26346). Used for its squalene liver oil, leather and meat, as well as for fishmeal (Ref. 6871).

IUCN Red List Status (Ref. 115185)

Near Threatened (NT)

Threat to humans

Harmless

Human uses

Fisheries: minor commercial

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration

Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development

Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance

References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion

Collaborators
Pictures
Stamps, Coins
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD₅₀ = 1.0020 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
4.2 ±0.4 se; Based on diet studies.

Resilience (Ref. 69278)
Low, minimum population doubling time 4.5 - 14 years (Fec=10-20)

Vulnerability (Ref. 59153)
High to very high vulnerability (65 of 100)

Price category (Ref. 80766)
Medium

Dalatias licha (Bonnaterre, 1788)