Good Fish Guide
Spurdog
(Squalus acanthias)
Also known as: Spiny Dogfish, Rock Salmon, Flake, Huss, Rigg, Rock, Rock Eel, Dogfish
Overview
Spurdog (spiny dogfish, dogfish, rock salmon or flake) are sharks. In the North Atlantic female dogfish grow to a maximum total length of 110-124 cm, males 83-100 cm. In the Northwest Atlantic spurdog mature at around 60 cm total length and at an age of 6 years for males and at around 75 cm, at an age of 12 years for females. In the Northeast Atlantic females are reported to mature slightly larger and older at 83 cm total length and 15 years. Gestation or pregnancy lasts between 18 and 22 months, one of the longest recorded for any vertebrate, and they give birth to live young called 'pups'. The fecundity of spurdog increases with length, and females of 100-120 cm produce a higher number of pups (10-21) than those females below this length. Spurdog forms size and sex-specific schools.
Ratings
Showing 10 results for Spurdog
Best Choice
OK - Needs Improvement
Avoid
Under review
North East Atlantic and adjacent waters - Wild-caught
Location: All areas
Capture methods: Bottom trawl (otter)
Spurdog is vulnerable to overexploitation. In the Northeast Atlantic, the latest stock assessment indicates that spurdog is currently not overfished, or subject to overfishing. This fishery has only recently reopened. The TAC has been set in line with advice but it is too soon to know if management measures will be effective in managing the stock. Otter trawls are likely to cause some damage to the seabed. Bycatch is moderate and may include vulnerable species.Rating last updated January 2023.
North East Atlantic and adjacent waters - Wild-caught
Location: All areas
Capture methods: Net (gill or fixed)
Spurdog is vulnerable to overexploitation. In the Northeast Atlantic, the latest stock assessment indicates that spurdog is currently not overfished, or subject to overfishing. This fishery has only recently reopened. The TAC has been set in line with advice but it is too soon to know if management measures will be effective in managing the stock. Gillnets can be very size selective for the target fish but can be unselective at the species level for both non-target fish and for mammals, birds and turtles.Rating last updated January 2023.
State and federal waters off the Atlantic coast of the U.S.A - Wild-caught
Location: All areas
Capture methods: Bottom trawl (otter)
In the Northwest Atlantic, spurdog is not overfished or subject to overfishing. The fishery is well managed, fishers must have a permit to harvest spurdog and annual catch limits and a commercial quota are set. If the quota is fully harvested, then the fishery will be closed and, if the annual catch limit is exceeded, the exact amount will be deducted from the subsequent fishing year. Demersal trawl fisheries have the potential to cause significant and long-lasting impacts to benthic habitats and communities. The impact of the trawl fishery is also likely causing populations of long-finned pilot whales to decline. This fishery is listed as Category II, the sustainable 'potential biological removal' level is set at 35 whales and the total reported take exceeded this at 38.Rating last updated January 2024.
State and federal waters off the Atlantic coast of the U.S.A - Wild-caught
Location: All areas
Capture methods: Hook & line (longline)
In the Northwest Atlantic, spurdog is not overfished or subject to overfishing. The fishery is well managed, fishers must have a permit to harvest spurdog and annual catch limits and a commercial quota are set. If the quota is fully harvested, then the fishery will be closed and, if the annual catch limit is exceeded, the exact amount will be deducted from the subsequent fishing year. Demersal longlines have minimal impact on the physical and biological habitat. There is a chance of negative effects on sensitive habitats when their distribution overlaps with fishing areas, however, this effect does not cause critical damage to benthic communities.Rating last updated January 2024.
State and federal waters off the Atlantic coast of the U.S.A - Wild-caught
Location: All areas
Capture methods: Net (gill or fixed)
In the Northwest Atlantic, spurdog is not overfished or subject to overfishing. The fishery is well managed, fishers must have a permit to harvest spurdog and annual catch limits and a commercial quota are set. If the quota is fully harvested, then the fishery will be closed and, if the annual catch limit is exceeded, the exact amount will be deducted from the subsequent fishing year. Management must effectively reduce the bycatch of ETP species in this area. Gillnet fisheries in the Northwest Atlantic are very likely to be preventing the recovery of the Atlantic right whale, and have bycatch of the endangered Atlantic sturgeon.Rating last updated January 2024.
North East Atlantic and adjacent waters - Wild-caught
Location: Cornwall
Capture methods: Bottom trawl (beam)
For more information about this fishery in Cornwall, see: https://www.cornwallgoodseafoodguide.org.uk/fish-guide/spurdog.php
North East Atlantic and adjacent waters - Wild-caught
Location: Cornwall
Capture methods: Net (gill or fixed)
For more information about this fishery in Cornwall, see: https://www.cornwallgoodseafoodguide.org.uk/fish-guide/spurdog.php
Wild-caught
Location: Certified fleets only
Method: Bottom trawl (otter)
Certification: Marine Stewardship Council (MSC)
More infoState and federal waters off the Atlantic coast of the U.S.A - Wild-caught
Location: Certified fleets only
Capture methods: Bottom trawl (otter)
Certification: Marine Stewardship Council (MSC)
In the Northwest Atlantic, spurdog is not overfished or subject to overfishing. The fishery is well managed, fishers must have a permit to harvest spurdog and annual catch limits and a commercial quota are set. If the quota is fully harvested, then the fishery will be closed and, if the annual catch limit is exceeded, the exact amount will be deducted from the subsequent fishing year. Demersal trawl fisheries have the potential to cause significant and long-lasting impacts to benthic habitats and communities. The impact of the trawl fishery is also likely causing populations of long-finned pilot whales to decline. This fishery is listed as Category II, the sustainable 'potential biological removal' level is set at 35 whales and the total reported take exceeded this at 38. The fishery has been Marine Stewardship Council (MSC) certified since 2012.Rating last updated January 2024.
Wild-caught
Location: Certified fleets only
Method: Hook & line (longline)
Certification: Marine Stewardship Council (MSC)
More infoState and federal waters off the Atlantic coast of the U.S.A - Wild-caught
Location: Certified fleets only
Capture methods: Hook & line (longline)
Certification: Marine Stewardship Council (MSC)
In the Northwest Atlantic, spurdog is not overfished or subject to overfishing. The fishery is well managed, fishers must have a permit to harvest spurdog and annual catch limits and a commercial quota are set. If the quota is fully harvested, then the fishery will be closed and, if the annual catch limit is exceeded, the exact amount will be deducted from the subsequent fishing year. Demersal longlines have minimal impact on the physical and biological habitat. There is a chance of negative effects on sensitive habitats when their distribution overlaps with fishing areas, however, this effect does not cause critical damage to benthic communities. The fishery has been Marine Stewardship Council (MSC) certified since 2012.Rating last updated January 2024.
Wild-caught
Location: Certified fleets only
Method: Net (gill or fixed)
Certification: Marine Stewardship Council (MSC)
More infoState and federal waters off the Atlantic coast of the U.S.A - Wild-caught
Location: Certified fleets only
Capture methods: Net (gill or fixed)
Certification: Marine Stewardship Council (MSC)
In the Northwest Atlantic, spurdog is not overfished or subject to overfishing. The fishery is well managed, fishers must have a permit to harvest spurdog and annual catch limits and a commercial quota are set. If the quota is fully harvested, then the fishery will be closed and, if the annual catch limit is exceeded, the exact amount will be deducted from the subsequent fishing year. Gillnet fisheries in the Northwest Atlantic are very likely to be preventing the recovery of the Atlantic right whale, and have bycatch of the endangered Atlantic sturgeon. The fishery has been Marine Stewardship Council (MSC) certified since 2012.Rating last updated January 2024.
Sustainable swaps
Spiny Dogfish
Rock Salmon
Flake
Huss
Rigg
Rock
Rock Eel
Dogfish
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