Slender codling (Halargyreus johnsonii)

Scientific name: Halargyreus johnsonii G?nther, 1862

Slender codling (Halargyreus johnsonii)

The Slender codling (Halargyreus johnsonii) is a marine fish of the family Moridae.

Biology

Dorsal spines (total): 0; Dorsal soft rays (total): 58-67; Anal spines: 0; Anal soft rays: 42 - 53; Vertebrae: 52 - 55. Eye large, its diameter about equal to snout length. Lower jaw slightly projecting; chin barbel absent. Elongate filament in first dorsal fin absent. Anal fin originating at about the midlength of body, deeply indented; pectoral fins not reaching to anal fin origin. Outer 2 pelvic rays elongate. Anterior gill rakers of 1st arch longer than gill filaments. Ventral light organ absent. Color is generally pale, silvery in fresh specimen; urobranchial cavity black (Refs. 1371, 43939).

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Halargyreus johnsonii
Family
Moridae (Morid cods)
Order
Gadiformes (Cods)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
56.0
Depth range
450–3000 m (1476–9843 ft)
Environment
Marine; bathypelagic; depth range 450 - 3000 m
Climate
Deep-water
Distribution
Spotty records from the subarctic and subantarctic to temperate waters of the Atlantic Ocean. South Atlantic: along the coast of Africa, on Walvis Ridge, near Discovery and Meteor seamounts and on the continental slope of Antarctica. Northwest Atlantic: Canada. North Pacific: northwestern Bering Sea and the Pacific Ocean south of the Gulf of Alaska to California and to Japan and the Sea of Okhotsk.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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