Edmund's spurdog (Squalus edmundsi)

Scientific name: Squalus edmundsi White, Last & Stevens, 2007

The Edmund's spurdog (Squalus edmundsi) is a marine fish of the family Squalidae. Native range: Eastern Indian Ocean, Western Australia and Indonesia.

Biology

This moderate-sized species of the ?mitsukurii group? has the following set of characters: moderately elongate body, depth 9.9-11.5% TL; narrowly triangular snout, moderately long, preoral length 2.0-2.44 times the horizontal prenarial length, 10.3-10.8% TL, mouth width 1.56-1.81 (1.73) times the horizontal prenarial length; pre-first dorsal length 27.7-30.0 (28.5)% TL; pre-second dorsal length 60.2-62.9 (61.3)% TL; interdorsal space 23.5-25.6 (24.7)% TL; weakly bifurcated anterior nasal flap; first dorsal fin large, upright, first dorsal-fin height 7.0-8.0% TL; first dorsal-fin spine strong, upright and broad-based; second dorsal-fin spine long, moderately broad-based; prepectoral length 21.9-23.1 (22.6)% TL; pelvic-caudal space 25.0-26.7 (25.9)% TL; pectoral fin of adult individuals not falcate; pectoral-fin inner margin relatively short, 6.4-7.1% TL; caudal bar is oblique, extending along base of lower lobe to caudal fork, less than 0.1-0.2 of posterior margin of upper lobe, upper c

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Squalus edmundsi
Family
Squalidae (Dogfish sharks)
Order
Squaliformes (Bramble, Sleeper and Dogfish sharks)
Class
Elasmobranchii (Sharks and Rays)
Maximum length
70.0
Depth range
204–850 m (669–2789 ft)
Environment
Marine; pelagic-oceanic; depth range 204 - 850 m, usually 300 - 500 m
Climate
Tropical
Distribution
Eastern Indian Ocean: Western Australia and Indonesia.
Conservation status (IUCN)
Near Threatened (NT)
Threat to humans
Harmless
Resilience
Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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