Duncker's river garfish (Zenarchopterus dunckeri) fish species and information / pictures of Duncker's river garfish - Zenarchopterus dunckeri

Duncker's river garfish (Zenarchopterus dunckeri) fish species information

Scientific Name
Zenarchopterus dunckeri

Common Name
Duncker's river garfish

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 10-12; Anal spines: 0; Anal soft rays: 10 - 13; Vertebrae: 37 - 42. Sixth anal fin ray thickened and greatly elongate, reaching posteriorly past the base of the caudal fin. Fourth or fifth dorsal fin ray of males thickened and much longer than the other dorsal rays, the distal end flat and wider than the other dorsal rays.

Classification

Classified By

Mohr, 1926

Class

Ray-finned fishes (Actinopterygii)

Order

Needle fishes (Beloniformes)

Family

Halfbeaks (Hemiramphidae)

Distribution

Region

Indo-West Pacific

Distribution

Indo-West Pacific: Andaman Islands, New Guinea, the East Indies and the Admiralty, Solomon, and the Ryukyu Islands (Ref. 10943). Reported from the estuaries along the Cambodian coast (Ref. 12693).

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

pelagic

Environment

Brackish; pelagic

Trophic Level

3.2 s.e. 0.40 Based on food items.

Occurs in Marine / Salt water

False

Occurs in Brackish water

True

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

14.0 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

Low vulnerability (11 of 100)

Resilience

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

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated