Longsnout blacksmelt (Dolicholagus longirostris) fish species and information / pictures of Longsnout blacksmelt - Dolicholagus longirostris

Longsnout blacksmelt (Dolicholagus longirostris) fish species information

Scientific Name
Dolicholagus longirostris

Common Name
Longsnout blacksmelt

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 9-11; Anal spines: 0; Anal soft rays: 18 - 21; Vertebrae: 48 - 53. Head and body silver when fresh; no scale pocket markings; lateral line indistinct (Ref. 13608). Slender body. Jaws rounded and subequal at the tips (Ref. 37473). Body strongly elongated with almost equal depth. Caudal peduncle short and relatively narrow. Pectorals short, far from reaching origin of dorsal fin. Radial pattern noticeable at the hind lower part of operculum. Few gill rakers on the inner surface of epibranchial of first gill arch (Ref. 33679).

Classification

Classified By
Maul, 1948
Class
Ray-finned fishes (Actinopterygii)
Order
Smelts (Osmeriformes)
Family
Deep-sea smelts (Bathylagidae)

Distribution

Region
Widely distributed in tropical and subtropical seas. Eastern Atlantic
Distribution
Widely distributed in tropical and subtropical seas. Eastern Atlantic: south of Portugal to Madeira. Western Atlantic: Gulf of Mexico (Ref. 27768). Northwest Atlantic: Canada (Ref. 5951). Northwest Pacific: Japan (Ref. 559). Southwest Pacific: New Zealand (Ref. 5755). Eastern Pacific: California Current region (Ref. 35604).
Range
39°N - 21°S

Environment

Climate
Deep-water
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
200 m
Depth To - meters
945 m
Zone
bathyalpelagic
Environment
Marine; bathypelagic; depth range 200 - 945 m (Ref. 13608), usually 200 - 400 m (Ref. 33679)
Trophic Level
3.4 s.e. 0.45 Based on food items.
Occurs in Marine / Salt water
True
Occurs in Brackish water
False
Occurs in Fresh Water
False
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
17.5 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 1.0000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: of no interest
Vulnerability
Moderate vulnerability (45 of 100)
Resilience
Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated