AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Callinectes sapidus | |
Date of the first record (?) | 1982 References (not structured): Clark PF (1986) North-east Atlantic crabs an atlas of distribution. Ross-on-Wye, Marine Conservation Society, p 252. Clark PF (1984) Recent records of alien crabs in Britain. Naturalist 109: 111-112 Comments: Captured on the Trent River. |
Recipient region (?) | Country: United Kingdom (Britain) LME: 22. North Sea |
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Source region (?) | Unknown References (not structured): Clark PF (1986) North-east Atlantic crabs an atlas of distribution. Ross-on-Wye, Marine Conservation Society, p 252. Comments: The species may have been spread from the southern North Sea to Britain or perhaps from the eastern coast of North America where it is native. |
Pathway / Vector (?) | Unknown |
Habitat type (?) | Estuary | |
Wave exposure (?) | Unknown | |
Salinity range (?) | Venice system: 2. β-Oligohaline [0.5-3psu] 3. α-Oligohaline [3-5psu] 4. β-Mesohaline [5-10psu] 5. α-Mesohaline [10-18psu] 6. Polymixohaline [18-30psu] 7. Euhaline [30-40psu] Comments: The crab almost certainly ascended the river from the coast |
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Temperature range (?) | Unknown |
Zonation / Substratum (?) | Benthic and Pelagic: Sublittoral within photic zone Substratum: Soft (mud to pebbles) References (not structured): Clark PF (1986) North-east Atlantic crabs an atlas of distribution. Ross-on-Wye, Marine Conservation Society, p 252. Comments: Has a normal series of planktonic stages, but it is unclear what stage resulted in the single specimen capture on the Trent River. |
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Reproductive duration (?) | Unknown | |
Reproductive seasonality (?) | Unknown | |
Migration pattern (?) | Not relevant References (not structured): Clark PF (1986) North-east Atlantic crabs an atlas of distribution. Ross-on-Wye, Marine Conservation Society, p 252. Comments: The upriver capture of a specimen is suggestive of a migratory event. |
Population status (?) | Rare (single record) (Moderate level of certainty) References (not structured): Clark PF (1986) North-east Atlantic crabs an atlas of distribution. Ross-on-Wye, Marine Conservation Society, p 252. Ingle RW (1980) British Crabs. London and Oxford, British Museum of Natural History London and Oxford University Press, pp v+222 Minchin D, Cook EJ, Clark PF (2013) Alien species on British brackish and marine waters. Aquatic Invasions 8(1):3-19. Comments: A single specimen was captured by an angler at Dunham Bridge on the River Trent. Captures of the blue crab in British waters are rare with only four known records from Britain. |
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Species status (?) | Non-indigenous species Comments: Native to the east coast of North America. |
Created by | Dan Minchin, 2013-03-19 |
Last update by | Elizabeth J. Cook, 2013-11-13 |