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Setting up your tank

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Helfrichs' dartfish (Nemateleotris helfrichi) fish species and information / pictures of Helfrichs' dartfish - Nemateleotris helfrichi

Helfrichs' dartfish (Nemateleotris helfrichi) fish species information

Scientific Name
Nemateleotris helfrichi

Common Name
Helfrichs' dartfish

Biology
Dorsal spines (total): 7; Dorsal soft rays (total): 29-31; Anal spines: 1; Anal soft rays: 26 - 28

Classification

Classified By

Randall & Allen, 1973

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Dartfishes (Ptereleotridae)

Distribution

Region

Pacific Ocean

Distribution

Pacific Ocean: eastwards to the Tuamoto Islands, north to the Ryukyu Islands.

Range

16°N - 28°S

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

25 m

Depth To - meters

90 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 25 - 90 m (Ref. 33482), usually 40 - ? m (Ref. 9710)

Trophic Level

3.4 s.e. 0.45 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

True

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

6.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.6250 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