Jespersen's hagfish (Myxine jespersenae) fish species and information / pictures of Jespersen's hagfish - Myxine jespersenae

Jespersen's hagfish (Myxine jespersenae) fish species information

Scientific Name
Myxine jespersenae

Common Name
Jespersen's hagfish

Biology
Diagnosis: Color grayish brown with whitish head, the white extending posteriorly in a mid-ventral stripe of varying length; surrounding slime pores, PCD, gill aperture, cloaca, CFF, and VFF margins whitish. Two paired, pointed, or comb-shaped, bilaterally symmetrical nasal-sinus papillae with 2-5 distal fringes and 2 cusps in each row fused at their bases. Additional cusps in anterior rows 7-9 and posterior rows 8-10; total cusps 38-44. Pairs of gill pouches 6. Slime pores: prebranchial 28-37; trunk 65-74; tail 11-15; total 107-121. Body slender, depth over cloaca 2.9-4.3% TL; ventral finfold originates within anterior 10% of trunk; caudal finfold termination dorsally above cloaca to posterior 7% of trunk.

Classification

Classified By

M?ller, Feld, Poulsen, Thomsen & Thormar, 2005

Class

Hagfishes (Myxini)

Order

Hagfishes (Myxiniformes)

Family

Hagfishes (Myxinidae)

Distribution

Region

North Atlantic

Distribution

North Atlantic: off West Greenland, in the eastern Davis Strait. Denmark Strait, Reykjanes Ridge, and South East of Iceland. Occurs sympatrically with Myxine glutinosa, although with a rather limited overlap in vertical distribution and no documented capture of both species in the same haul or trap exists.

Range

Unknown

Environment

Climate

Deep-water

Water Temperature From

4 °C

Water Temperature To

5 °C

Depth From - meters

752 m

Depth To - meters

1556 m

Zone

benthopelagic

Environment

Marine; benthopelagic; depth range 752 - 1556 m

Trophic Level

3.39 s.e. 0.64 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

49.8 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Moderate vulnerability (43 of 100)

Resilience

Unknown

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated