Ecology Summary - Nematocarcinus gracilis

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Ecology of Nematocarcinus gracilis

Main Ref.	Poupin, J., 1998
Remarks	Typically found near the sea floor in deep-seas. Its characteristic 3 pairs of extremely long, stilt-like pereiopods suggest its ability to walk on soft sediments. An opportunistic feeder, relying on phototrophically derived organic matter. Its feeding strategy may be assumed to be similar with its congener, N. exilis, a scavenger and predator that feeds mainly on fish remains and slow-moving benthic organisms. Shown to produce oval eggs (0.5 to 0.65 mm length) and may possibly achieve several reproductive outputs in its relatively long lifespan of 2 to 3 years (Ref. 97382).

Main Ref.

Poupin, J., 1998

Remarks

Typically found near the sea floor in deep-seas. Its characteristic 3 pairs of extremely long, stilt-like pereiopods suggest its ability to walk on soft sediments. An opportunistic feeder, relying on phototrophically derived organic matter. Its feeding strategy may be assumed to be similar with its congener, N. exilis, a scavenger and predator that feeds mainly on fish remains and slow-moving benthic organisms. Shown to produce oval eggs (0.5 to 0.65 mm length) and may possibly achieve several reproductive outputs in its relatively long lifespan of 2 to 3 years (Ref. 97382).

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 Nematocarcinus gracilis may be found.

Habitat

Substrate	Benthic: mobile; Pelagic; Soft Bottom
Substrate Ref.	Poupin, J., 1998
Special habitats
Special habitats Ref.

Associations

Ref.
Associations
Associated with
Association remarks
Parasitism

feeding

Feeding type	plants/detritus+animals (troph. 2.2-2.79)
Feeding type Ref.	Allen, C.E., 1998
Feeding habit	variable
Feeding habit Ref.	Allen, C.E., 1998

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	2.00	0.00			Trophic level and s.e. inferred from exclusive plant/detritus food items.
Ref.

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