Scientific Name
Chesnonia verrucosa

Common Name
Warty poacher

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.

Classification

Classified By

Lockington, 1880

Class

Ray-finned fishes (Actinopterygii)

Order

Scorpionfishes and Flatheads (Scorpaeniformes)

Family

Poachers (Agonidae)

Distribution

Region

Northeast Pacific

Distribution

Northeast Pacific: Bristol Bay, Alaska to Unimak Island in the Aleutian chain and Point Montara, California, USA ; extended to southeastern Bering Sea.

Range

Unknown

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

18 m

Depth To - meters

425 m

Zone

demersal

Environment

Marine; demersal; depth range 18 - 425 m

Trophic Level

3.21 s.e. 0.40 Based on size and trophs of closest relatives

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

20.0 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

Unknown

Vulnerability

Low to moderate vulnerability (31 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated