Tropical halfbeak (Hyporhamphus affinis) fish species and information / pictures of Tropical halfbeak - Hyporhamphus affinis

Tropical halfbeak (Hyporhamphus affinis) fish species information

Scientific Name
Hyporhamphus affinis

Common Name
Tropical halfbeak

Biology
Found chiefly around coral reefs (Ref. 58534) and islands but extends a little further from shore than Hyporhamphus (R.) dussumieri which has a similar range (Ref. 10943). Found in schools (Ref. 9710). Feeds on zooplankton and floating matter. Eggs covered with adhesive filaments to assist in attaching to floating and benthic objects (Ref. 43448).

Classification

Classified By

G?nther, 1866

Class

Ray-finned fishes (Actinopterygii)

Order

Needle fishes (Beloniformes)

Family

Halfbeaks (Hemiramphidae)

Distribution

Region

Indo-Pacific

Distribution

Indo-Pacific: Red Sea and East Africa through the Indian Ocean islands to western Australia, New Guinea, Philippines, and islands of Oceania. Not found in Hawaiian islands, and apparently absent from Indo-Malayan Archipelago. Has been mentioned in the literature under other names, particularly Hyporhamphus erythrorinchus and Hyporhamphus dussumieri (Ref. 10943).

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

3.46000003814697 s.e. 0.48 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

False

Physical Size and Genetics

Maximum Length

38.0 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

Fisheries:

Vulnerability

Low to moderate vulnerability (30 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