Velvetnose brotula (Petrotyx hopkinsi) fish species and information / pictures of Velvetnose brotula - Petrotyx hopkinsi

Velvetnose brotula (Petrotyx hopkinsi) fish species information

Scientific Name
Petrotyx hopkinsi

Common Name
Velvetnose brotula

Biology
Vertebrae: 12. Snout with numerous small, fleshy papillae; lips bearing series of dermal fringes; with small eye; posterior margin of preopercle skin-covered; spines absent from opercle and preopercle; upper margin of maxilla sheathed; developed gill rakers 3; single lateral line on body, no pores on head; median basibranchial tooth patch 1; branchiostegal rays 8 (Ref 34024).

Classification

Classified By

Heller & Snodgrass, 1903

Class

Ray-finned fishes (Actinopterygii)

Order

Cusk eels (Ophidiiformes)

Family

Cusk-eels (Ophidiidae)

Distribution

Region

Eastern Pacific

Distribution

Eastern Pacific: Gulf of California to the Galapagos.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

reef-associated

Environment

Marine; reef-associated

Trophic Level

3.46 s.e. 0.57 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

True

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

20.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.7500 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: of no interest

Vulnerability

Low vulnerability (22 of 100)

Resilience

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

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)