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Tetrapturus angustirostris  Tanaka, 1915

Shortbill spearfish
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Image of Tetrapturus angustirostris (Shortbill spearfish)
Tetrapturus angustirostris
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New Zealand country information

Common names: Shortbill spearfish
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from the North Island (Ref. 89423). Voucher specimen(s) held at the NMNZ. Also Ref. 43.
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/nz.html
National Fisheries Authority: https://www.fish.govt.nz/
Occurrences: Occurrences Point map
Main Ref: Paulin, C., A. Stewart, C. Roberts and P. McMillan, 1989
National Database:

Classification / Names

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Istiophoridae (Billfishes)
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Main reference

Size / Weight / Age

Max length : 230 cm TL male/unsexed; (Ref. 9308); common length : 190 cm TL male/unsexed; (Ref. 9308); max. published weight: 52.0 kg (Ref. 43)

Environment

Marine; pelagic-oceanic; oceanodromous (Ref. 51243); depth range 0 - 1830 m (Ref. 86942), usually 0 - 350 m (Ref. 89423)

Climate / Range

Subtropical, preferred 28°C (Ref. 107945); 43°N - 56°S, 20°E - 68°W

Distribution

Indian and Pacific: tropical and temperate waters. Although some stray individuals are found in the Atlantic Ocean, this species is believed to have its spawning grounds and principal populations only in the Pacific and Indian Oceans. Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea (Ref. 26139).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 51-57; Anal spines: 0; Anal soft rays: 18 - 23. Dark blue above, blue splattered with brown on the sides, silvery white below; 1st dorsal fin plain dark blue, other fins brown or dark brown; anal fin bases with tinges of silvery white.

Biology     Glossary (e.g. epibenthic)

Oceanic and epipelagic, found above the thermocline (Ref. 9308). Feeds on fishes, cephalopods and crustaceans. Also caught as a by-catch of long lines with hooks intended for tuna. Marketed frozen and prepared as fish cakes and sashimi in Japan (Ref. 9308). Also prepared as sausages.

IUCN Red List Status (Ref. 115185)

Threat to humans

  Harmless



Human uses

Fisheries: minor commercial; gamefish: yes

More information

Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
Collaborators
Pictures
Stamps, Coins
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Download XML

Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD50 = 0.5630 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
4.5   ±0.76 se; Based on food items.

Resilience (Ref. 69278)
Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tm=2-4)

Vulnerability (Ref. 59153)
Moderate vulnerability (42 of 100)
Price category (Ref. 80766)
High