Ecology Summary - Neorossia caroli

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Ecology of Neorossia caroli

Main Ref.	Schneider, W., 1990
Remarks	Most bathyal among the members of the family. Demersal. Prefers deep muddy bottoms characterized by Isidella elongata populations, often overlapping with Rossia macrosoma in the upper level of its distributional range and frequently associated with Sepietta oweniana and Rondeletiola minor. In the western Mediterranean, it is the most common cephalopod captured between 1000 and 2000 m, along with Bathypolypus sponsalis but is most abundant between 400 and 600 to 700 m in both eastern and western parts of this sea. Mature individuals found throughout the year suggest an extended spawning season. Its large eggs (8-10 mm diameter and covered by a hard violet-coloured coating), are attached to hard substrates at various depths. Lifespan approximated between 12 and 24 months. Usually taken as trawl fishery bycatch; of minor commercial importance. Sold fresh and frozen in fish markets with other bobtail squids (Ref. 1695).

Main Ref.

Schneider, W., 1990

Remarks

Most bathyal among the members of the family. Demersal. Prefers deep muddy bottoms characterized by Isidella elongata populations, often overlapping with Rossia macrosoma in the upper level of its distributional range and frequently associated with Sepietta oweniana and Rondeletiola minor. In the western Mediterranean, it is the most common cephalopod captured between 1000 and 2000 m, along with Bathypolypus sponsalis but is most abundant between 400 and 600 to 700 m in both eastern and western parts of this sea. Mature individuals found throughout the year suggest an extended spawning season. Its large eggs (8-10 mm diameter and covered by a hard violet-coloured coating), are attached to hard substrates at various depths. Lifespan approximated between 12 and 24 months. Usually taken as trawl fishery bycatch; of minor commercial importance. Sold fresh and frozen in fish markets with other bobtail squids (Ref. 1695).

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 Neorossia caroli may be found.

Habitat

Substrate	Benthic: demersal; Soft Bottom: mud;
Substrate Ref.	Jereb, P. and C.F.E. Roper (eds.), 2005
Special habitats	Other habitats: deep-water corals;
Special habitats Ref.	Jereb, P. and C.F.E. Roper (eds.), 2005

Associations

Ref.	Schneider, W., 1990
Associations
Associated with
Association remarks
Parasitism

feeding

Feeding type	mainly animals (troph. 2.8 and up)
Feeding type Ref.	Ruppert, E.E., R.S. Fox and R.D. Barnes, 2004
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.	Ruppert, E.E., R.S. Fox and R.D. Barnes, 2004

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
Ref.

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