Scientific Name
Carnegiella marthae

Common Name
Blackwing hatchetfish

Biology
Feeds mainly at the surface on insects, but also takes crustaceans. Aquarium specimens reach 3.5 cm TL (Ref. 7020).

Classification

Classified By

Myers, 1927

Class

Ray-finned fishes (Actinopterygii)

Order

Characins (Characiformes)

Family

Freshwater hatchetfishes (Gasteropelecidae)

Distribution

Region

South America

Distribution

South America: Negro and upper Orinoco River basins.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

23 °C

Water Temperature To

27 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

pelagic

Environment

Freshwater; ; pH range: 5.5 - 6.5; dH range: ? - 4 pelagic

Trophic Level

3.15 s.e. 0.36 Based on food items.

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

2.8 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5645 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Aquarium: commercial

Vulnerability

Low vulnerability (10 of 100)

Resilience

Unknown

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated