www.fao.org Copyright Michel Lamboeuf · 0
Squalus acanthias |
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- Australian Faunal Directory
- FishBase
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espaņol |
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Overview |
Main identification features
- ds: 1st shorter, both with a spine
- tail base - pr keels, pit above
- nasal flaps triangular
- sides - white spots
- tail fin - no notch below tip
A slender cylindrical body, short snout; eyes about midway between snout tip and gill slits; 5 gill slits; moderate sized spiracles just behind eyes; nasal flaps short, not reaching mouth, with a minute or no secondary lobe, inner corners of nostrils closer to snout tip than to mouth; eyes without nictitating membrane; teeth similar sized, with strongly oblique tips on both jaws; no anal fin; 2 dorsal fins with ungrooved spines (shorter on first dorsal), origin of the first behind pectorals; tail base with a pair of keels and a pit above, tip of fin without a notch on underside; skin with denticles.
Color: grey above, white below; usually conspicuous white spots on sides; dorsal fin edges dusky in juveniles, plain in adults.
Reaches 160cm
Intertidal to 1460m; from the surface to the bottom, usually near the bottom; often in bays and estuaries.
Antitropical; Pacific, Atlantic and Mediterranean, also SW Indian Ocean. From Alaska to the Gulf of California.
Attributes
Cites: Not listed.
Climate Zone: North Temperate (Californian Province &/or Northern Gulf of California); Northern Subtropical (Cortez Province + Sinaloan Gap).
Depth Range Max: 1460 m.
Depth Range Min: 1 m.
Diet: mobile benthic crustacea (shrimps/crabs); octopus/squid/cuttlefish; mobile benthic gastropods/bivalves; bony fishes; Pelagic crustacea.
Eastern Pacific Range: Northern limit=60; Southern limit=24; Western limit=-176; Eastern limit=-111; Latitudinal range=36; Longitudinal range=65.
Egg Type: Live birth; No pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Bentho-Pelagic.
Global Endemism: TEP non-endemic; Circumtropical ( Indian + Pacific + Atlantic Oceans); All species.
Habitat: Sand & gravel; Mud; Water column; Soft bottom (mud, sand,gravel, beach, estuary & mangrove).
Inshore Offshore: Inshore; Offshore; In & Offshore.
IUCN Red List: Near threatened; Listed.
Length Max: 160 cm.
Regional Endemism: Tropical Eastern Pacific (TEP) non-endemic; California province, primarily; Continent only; Eastern Pacific non-endemic; Continent; Temperate Eastern Pacific, primarily; All species.
Residency: Vagrant.
Salinity: Marine; Brackish.
Water Column Position: Surface; Mid Water; Near Bottom; Bottom; Bottom + water column;
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Names | |
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Links to other sites | |
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References |
- Linnaeus, C., 1758., Systema Naturae, Ed. X. (Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima, reformata.) Holmiae., Systema Nat. ed. 10, 1:1-824.
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Acknowledgements | |
I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.
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Following modified from Australian Faunal Directory
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Top | See original
| &pull 20q v5.145 20180528: Error 301 Moved Permanently http://biodiversity.org.au/afd/taxa/de3341af-2523-4396-a8c6-77f787909c1a/ |
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Following modified from FishBase
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Top | See original
http://www.fishbase.org/Summary/speciesSummary.php?genusname=Squalus&speciesname=acanthias ---> http://52.67.158.155/Summary/speciesSummary.php?genusname=Squalus&speciesname=acanthias
http://52.67.158.155/Summary/speciesSummary.php?genusname=Squalus&speciesname=acanthias ---> https://fishbase.net.br/Summary/speciesSummary.php?genusname=Squalus&speciesname=acanthias
&pull 20q v5.145 20180528: Error 501 Protocol scheme 'https' is not supported (LWP::Protocol::https not installed) https://fishbase.net.br/Summary/speciesSummary.php?genusname=Squalus&speciesname=acanthias |
Updated: 2024-05-04 02:58:35 gmt
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