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Capitella capitata (Fabricius 1780)

Capitella capitata

provided by wikipedia EN

Capitella capitata is a polychaete worm that grows up to 10 cm in length. It is often blood-red in colour. The species is sedentary and fragile, with a flexible body.

Capitella capitata occurs on muddy sand, gritty sand, fine sand or rich mud on the lower shore to sub-littoral. It may be found under pebbles or small stones, with the burrows at or near the surface of the sediment.

It is an opportunistic species tolerant of stressful conditions, and often found in polluted waters (sewer discharges, hydrocarbons, metals ...) where it out-competes less tolerant species. A large abundance of C. capitata can be seen as an indication of polluted waters.[1]

Capitella capitata is able to vary its reproductive strategy in accordance with its current environmental conditions. If local conditions are favorable, it can produce benthic larvae facilitating quick exploitation of local concentrations of organic matter. In contrast, C. capitata can produce planktonic larvae if there is a need to discover new habitats.[2]

References

  1. ^ R.B. Clark, "Marine Pollution", Clarendon Press, 1997
  2. ^ J.F. Grassle and J.P. Grassle, "Opportunistic life histories and genetic systems in marine benthic polychaetes", J. Mar. Res. 3:253-284, 1974

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Capitella capitata: Brief Summary

provided by wikipedia EN

Capitella capitata is a polychaete worm that grows up to 10 cm in length. It is often blood-red in colour. The species is sedentary and fragile, with a flexible body.

Capitella capitata occurs on muddy sand, gritty sand, fine sand or rich mud on the lower shore to sub-littoral. It may be found under pebbles or small stones, with the burrows at or near the surface of the sediment.

It is an opportunistic species tolerant of stressful conditions, and often found in polluted waters (sewer discharges, hydrocarbons, metals ...) where it out-competes less tolerant species. A large abundance of C. capitata can be seen as an indication of polluted waters.

Capitella capitata is able to vary its reproductive strategy in accordance with its current environmental conditions. If local conditions are favorable, it can produce benthic larvae facilitating quick exploitation of local concentrations of organic matter. In contrast, C. capitata can produce planktonic larvae if there is a need to discover new habitats.

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Distribution

provided by World Register of Marine Species
Restricted to Arctic and subarctic localities (Blake, 2009). In CaRMS reported from Saguenay Fjord, northern Gaspe waters, downstream part of middle St. Lawrence estuary, Magdalen Islands (from eastern Bradelle valley to the west, as far as Cape North, including the Cape Breton Channel), lower St. Lawrence estuary; Prince Edward Island (from the northern tip of Miscou Island, N.B. to Cape Breton Island south of Cheticamp, including the Northumberland Strait and Georges Bay to the Canso Strait causeway); Cobscook Bay

References

  • North-West Atlantic Ocean species (NWARMS)
  • Blake, James A. 2009. Redescription of Capitella capitata (Fabricius) from West Greenland and designation of a neotype (Polychaeta, Capitellidae). Zoosymposia 2: 55-80

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Habitat

provided by World Register of Marine Species
intertidal, bathyal, infralittoral and circalittoral of the Gulf and estuary

Reference

North-West Atlantic Ocean species (NWARMS)

license
cc-by-4.0
copyright
WoRMS Editorial Board
contributor
Kennedy, Mary [email]