Ecology Summary - Richardsonius balteatus

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Main Ref.	Scott, W.B. and E.J. Crossman, 1973
Remarks	Inhabits runs and flowing to standing pools of headwaters, creeks, and small to medium rivers; also lakes and ponds. Usually found over mud or sand, often near vegetation (Ref. 5723, 86798). Occurs in schools (Ref. 1998). Fry feed on diatoms, copepods, ostracods, and other small planktonic and demersal crustaceans (Ref. 1998). Diet changes to terrestrial and aquatic insects, algae, mollusks, fish eggs (including their own), and small fishes like other redside shiners, other minnows, and trout (Ref. 1998). Preyed upon by mergansers, loons, and mink (Ref. 1998). Adults feed on zooplankton, insects, and plants (Ref. 1998).

Main Ref.

Scott, W.B. and E.J. Crossman, 1973

Remarks

Inhabits runs and flowing to standing pools of headwaters, creeks, and small to medium rivers; also lakes and ponds. Usually found over mud or sand, often near vegetation (Ref. 5723, 86798). Occurs in schools (Ref. 1998). Fry feed on diatoms, copepods, ostracods, and other small planktonic and demersal crustaceans (Ref. 1998). Diet changes to terrestrial and aquatic insects, algae, mollusks, fish eggs (including their own), and small fishes like other redside shiners, other minnows, and trout (Ref. 1998). Preyed upon by mergansers, loons, and mink (Ref. 1998). Adults feed on zooplankton, insects, and plants (Ref. 1998).

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 Richardsonius balteatus may be found.

Habitat

Substrate
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref.
Associations
Associated with
Association remarks
Parasitism

Feeding

Feeding type	mainly animals (troph. 2.8 and up)
Feeding type Ref.	Scott, W.B. and E.J. Crossman, 1973
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.	Scott, W.B. and E.J. Crossman, 1973

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	3.41	0.49			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.

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