Nutritional Freshwater Life
80
Nutritional Facts
Proximate Composition (% DM)
Protein
Ash
Fiber
14.05
3.22
15.64
Minerals (% or mg/100 g DM)
Ca
(%)
P
(%)
K
(%)
Na
(%)
Mg
(%)
Fe
(mg)
Mn
(mg)
Mo
(mg)
3.76 0.34 1.99 0.107 0.200 1171 535 21.0
Source: Data from Linn et al. (1975).
Potamogeton richardsonii (A. Bennett) (Rydberg)
Order: Alismatales
Family: Potamogetonaceae
Common name: Richardson’s pondweed, redhead pondweed.
Distribution: Native to much of northern North America, including all of
Canada and the northern and western
United States.
Habitat: Lacustrine (in lakes or ponds),
riverine (in rivers or streams).
Description: This perennial herb grows
a narrow, mostly unbranched stem
from a mat of rhizomes in the substrate.
It reaches about a meter in maximum
length. Leaves of this species are all
submerged underwater. They are alternately arranged. Leaves are up to 13 cm
long and about 3 cm wide and are olive
green, ovate-lanceolate to narrowly
lanceolate, not arcuate, base rounded,
margins entire to crispate, and apex not
hood-like. Inflorescences are emersed,
unbranched. The small red berry of this
species is edible.
Nutritional Facts
Proximate Composition (% DM)
Protein
Ash
Fiber
11.20
2.62
19.11
Minerals (% DM)
Ca
(%)
P
(%)
K
(%)
Na
(%)
Mg
(%)
Fe
(mg)
Mn
(mg)
Mo
(mg)
4.03
0.17 1.33 0.139 0.500 218 109 11.6
Source: Data from Linn et al. (1975).