Ecology Summary - Cancer borealis

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Ecology of Cancer borealis

Main Ref.	Tavares, M., 2003
Remarks	Lives in deep water (Ref. 106868). Occurs from the intertidal zone among rocks to 800 m (Ref. 367). Common in shallow subtidal zone during summer (Ref. 106868). Small to medium-sized individuals are found near shore seasonally (especially in the south), while larger ones only occur in deeper water (Ref. 367). Moves from subtidal into low intertidal with the tide (Ref. 106868). Found in rocky bottom in association with Homarus americanus. Also on rubble and soft substrate (Ref. 97531). Feeds mainly on mollusks, echinoderms, and other invertebrates (Ref. 367). Preyed upon by gulls (Ref. 106868).

Main Ref.

Tavares, M., 2003

Remarks

Lives in deep water (Ref. 106868). Occurs from the intertidal zone among rocks to 800 m (Ref. 367). Common in shallow subtidal zone during summer (Ref. 106868). Small to medium-sized individuals are found near shore seasonally (especially in the south), while larger ones only occur in deeper water (Ref. 367). Moves from subtidal into low intertidal with the tide (Ref. 106868). Found in rocky bottom in association with Homarus americanus. Also on rubble and soft substrate (Ref. 97531). Feeds mainly on mollusks, echinoderms, and other invertebrates (Ref. 367). Preyed upon by gulls (Ref. 106868).

Aquatic zones / Water bodies

	Marine - Neritic	Marine - Oceanic	Brackishwater	Freshwater
Marine zones / Brackish and freshwater bodies	supra-littoral zone littoral zone sublittoral zone	epipelagic mesopelagic epipelagic abyssopelagic hadopelagic	estuaries/lagoons/brackish seas mangroves marshes/swamps	rivers/streams lakes/ponds caves exclusively in caves

Highighted items on the list are where Cancer borealis may be found.

Habitat

Substrate	Benthic: mobile; Soft Bottom Hard Bottom: rocky; rubble;
Substrate Ref.	Tavares, M., 2003
Special habitats
Special habitats Ref.

Associations

Ref.	Tavares, M., 2003
Associations
Associated with
Association remarks
Parasitism

feeding

Feeding type	mainly animals (troph. 2.8 and up)
Feeding type Ref.	Tavares, M., 2003
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.	McKay, K.M. and K.L. Heck Jr, 2008

Trophic Level(s)

Estimation method	original sample		unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition
From individual food items	3.98	0.11			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.

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