Ecology Summary - Penaeus duorarum

Language:

Ecology of Penaeus duorarum

Main Ref.	Holthuis, L.B., 1980
Remarks	Inhabits bottom firm mud and silt with sand and shells. Juveniles can live in water with low salinities (Ref. 8). Juveniles use seagrass beds as nursery grounds until they reach a size of about 10 cm total length, then migrates offshore. Feeds nocturnally, mainly preying on the seagrass shrimp Thor floridanus. Other food items of juveniles include bivalves, calcareous algae, plant detritus, copepods and seagrass fragments (Ref. 67427).

Main Ref.

Holthuis, L.B., 1980

Remarks

Inhabits bottom firm mud and silt with sand and shells. Juveniles can live in water with low salinities (Ref. 8). Juveniles use seagrass beds as nursery grounds until they reach a size of about 10 cm total length, then migrates offshore. Feeds nocturnally, mainly preying on the seagrass shrimp Thor floridanus. Other food items of juveniles include bivalves, calcareous algae, plant detritus, copepods and seagrass fragments (Ref. 67427).

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 Penaeus duorarum may be found.

Habitat

Substrate	Benthic: mobile; demersal; Soft Bottom: sand; silt; mud;
Substrate Ref.
Special habitats	Beds: sea grass;
Special habitats Ref.	Schwamborn, R. and M.M. Criales, 2000

Associations

Ref.	Holthuis, L.B., 1980
Associations
Associated with
Association remarks
Parasitism

feeding

Feeding type	plants/detritus+animals (troph. 2.2-2.79)
Feeding type Ref.	Schwamborn, R. and M.M. Criales, 2000
Feeding habit	variable
Feeding habit Ref.	Odum, W.E. and E.J. Heald, 1972

Trophic Level(s)

Estimation method	original sample		unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition	2.15	0.12			Troph of juv./adults.
From individual food items	2.98	0.27			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.	Odum, W.E. and E.J. Heald, 1972

Back to Search