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Stippled gunnel (Rhodymenichthys dolichogaster) fish species and information / pictures of Stippled gunnel - Rhodymenichthys dolichogaster

Stippled gunnel (Rhodymenichthys dolichogaster) fish species information

Scientific Name
Rhodymenichthys dolichogaster

Common Name
Stippled gunnel

Biology
Dorsal spines (total): 80 - 96; Anal spines: 2 - 3; Anal soft rays: 40 - 51; Vertebrae: 87 - 101. One pore on interorbital region; pelvic fin present; a narrow silvery longitudinal band runs from eye to base of pectoral fin; body color greatly variable, with brown, green, light-purple etc (Ref. 559).

Classification

Classified By

Pallas, 1814

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Gunnels (Pholidae)

Distribution

Region

North Pacific

Distribution

North Pacific: Niigata and Iwate Prefecture, Japan to Primorskii Krai, Sakhalin and the Commander Islands, Russia. Also recorded from the Bering Sea to the Aleutian Islands (Ref. 265). Reported from South Korea (Ref. 77001).

Range

Unknown

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

148 m

Zone

benthopelagic

Environment

Marine; benthopelagic; depth range 0 - 148 m (Ref. 50550)

Trophic Level

3.31 s.e. 0.46 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

25.0 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

Fisheries:

Vulnerability

Low to moderate vulnerability (26 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated