Hyporhamphus rosae
California Halfbeak
Collection Details
Specimens
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Beloniformes
Hemiramphidae (Halfbeaks)
Hyporhamphus
Hyporhamphus rosae (California Halfbeak)
Description
This species account was compiled from
FishBase (Froese, R. and D. Pauly. Editors. 2025. FishBase. World Wide Web electronic publication. www.fishbase.org, version 04/2025.)
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Characters
Body shape: elongated. Branchiostegal rays: 10-12 (Ref. 36576). Striking features: striking type of mouth.
Distribution
Eastern Pacific: Santa Ana in southern California, USA to Costa Rica. Range extends to Panama (Ref. 36576). Reported from Peru and Galapagos Islands (Ref. 5530).
Habitat Associations
Freshwater, brackish, marine. pelagic-neritic.
Biology
Adults are found near shore, frequently in coastal bays at or near the surface. Often form small schools. Occasionally penetrate fresh waters (Ref. 9306). Presumably oviparous, with planktonic larvae (Ref. 36576). Eggs are attached to spawning substrate via filaments (Ref. 36576).
Max length: 15.0 cm TL; common length: 9.0 cm SL.
Reproductive mode: dioecism; fertilization: external; nonguarders. Oviparous (Ref. 36576).
IUCN Red List Status: Data Deficient (DD), assessed 2018-12-06. Resilience: High (Preliminary K or Fecundity.).
References
Eschmeyer, W.N., E.S. Herald and H. Hammann (1983) A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p.
Watson, W. (1996) Hemiramphidae: halfbeaks. p. 634-641. In H.G. Moser (ed.) The early stages of fishes in the California Current Region. California Cooperative Oceanic Fisheries Investigations (CalCOFI) Atlas No. 33. Allen Press, Inc., Lawrence, Kansas. 1505 p.
Comments On Hyporhamphus rosae