Warty poacher (Chesnonia verrucosa)

Scientific name: Chesnonia verrucosa Lockington, 1880

The Warty poacher (Chesnonia verrucosa) is a marine fish of the family Agonidae. Native range: Northeast Pacific, Bristol Bay, Alaska to Unimak Island in the Aleutian chain and Point Montara, California, USA; extended to southeastern Bering Sea.

Biology

Dorsal spines: 8 - 9; Dorsal soft rays: 6-9; Anal spines: 0; Anal soft rays: 10 - 12; Vertebrae: 35 - 37. Dorsal fins touching or nearly so; caudal rounded; anal long based and rather low; pectorals broad, lower 4 to 6 rays thickened and not joined by membrane as far as their ends; pelvic fins reduced. Dark gray or brown on upper surface, paler beneath, the line of demarcation very clear on head; some individuals with 6 or more dark saddle-shaped markings over back and extending on sides; dorsal fins with dark bands following free margins on fins; longitudinal dark coloring follows rays of caudal fin, especially at distal ends; rows of dark spots on rays of pectorals, and a bright orange spot in its center; dark spots on eyeballs more abundant on upper part.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Chesnonia verrucosa
Family
Agonidae (Poachers)
Order
Scorpaeniformes (Scorpionfishes and Flatheads)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
20.0
Depth range
18–425 m (59–1394 ft)
Environment
Marine; demersal; depth range 18 - 425 m
Climate
Temperate
Distribution
Northeast Pacific: Bristol Bay, Alaska to Unimak Island in the Aleutian chain and Point Montara, California, USA; extended to southeastern Bering Sea.
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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