Broadgilled hagfish (Eptatretus cirrhatus) fish species and information / pictures of Broadgilled hagfish - Eptatretus cirrhatus

Broadgilled hagfish (Eptatretus cirrhatus) fish species information

Scientific Name
Eptatretus cirrhatus

Common Name
Broadgilled hagfish

Biology
Dorsal spines : 0; Dorsal soft rays : 0; Anal spines: 0; Anal soft rays: 0. This species differs from all its congeners except E. caribbeaus, E. goliath, E. menezesi and E. strahani by having 7 pairs of gill pouches and three-cusp multicusps on the anterior and posterior rows of cusps. It differs from E. caribbeaus in number of anterior unicusps , posterior unicusps , total cusps and prebranchial pores ; from E. goliath in number of anterior unicusps , total cusps and trunk pores ; from E. menezesi in number of posterior unicusps , total cusps , tail pores ; from E. strahani by its number of prebranchial pores .

Classification

Classified By

Forster, 1801

Class

Hagfishes (Myxini)

Order

Hagfishes (Myxiniformes)

Family

Hagfishes (Myxinidae)

Distribution

Region

Western Pacific

Distribution

Western Pacific: southern and eastern Australia and New Zealand.

Range

Unknown

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

40 m

Depth To - meters

700 m

Zone

bathydemersal

Environment

Marine; bathydemersal; non-migratory; depth range 40 - 700 m

Trophic Level

5 s.e. 0.50 Based on food items.

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

83.0 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 to high vulnerability (51 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)