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