Western roughy (Hoplostethus occidentalis) fish species and information / pictures of Western roughy - Hoplostethus occidentalis

Western roughy (Hoplostethus occidentalis) fish species information

Scientific Name
Hoplostethus occidentalis

Common Name
Western roughy

Biology
Dorsal spines : 6; Dorsal soft rays : 13; Anal spines: 3; Anal soft rays: 9. Pectoral fin long, its tip extending beyond anal fin origin. Scales adherent, spinules small, margins serrate, spines on fin rays small. Denticles on head bones small, septae relatively strong.

Classification

Classified By

Woods, 1973

Class

Ray-finned fishes (Actinopterygii)

Order

Sawbellies (Beryciformes)

Family

Slimeheads (Trachichthyidae)

Distribution

Region

Atlantic Ocean

Distribution

Atlantic Ocean: southern Nova Scotia south to the northern part of the Gulf of Mexico, on the eastern seaboard of Florida, in the Bahama, in the west and southern Caribbean, and around Venezuela, Guyana, Suriname, Tobago and Brazil.

Range

Unknown

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

485 m

Depth To - meters

550 m

Zone

bathyalpelagic

Environment

Marine; bathypelagic; depth range 485 - 550 m

Trophic Level

3.6 s.e. 0.59 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

17.3 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

Fisheries: of no interest

Vulnerability

Moderate to high vulnerability (52 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated