8273

• UCREFRP Catalog Number: 8273
• Author: U.S. Bureau of Reclamation, U.S. Fish and Wildlife Service, U.S. Geological Survey and U.S. Bureau of Indian Affairs.
• Title: Guidelines for Interpretation of the Biological Effects of Selected Constituents in Biota, Water, and Sediment.
• USFW Year: 1998.
• USFW - Doc Type: \
• Copyright Material: NO

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Arsenic

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Concentration
As In diet
Species compound (mg/kg dw) As concentration in biomass and other effects Reference
Fish
Rainbow As (V) 10 No effect Eisler 1988
trout
(Oncorflyn- 90 Some adaptation to dietary As observed, as initial
chus mykiss) negative growth gave way to slow positive growth over
time
Sodium 30 Reduced weight gains after 8 weeks SJVDP 1990
arsenite
Birds
Brown- Copper 11 1.7 mg/kg dw (maximum whole-body concentration). All Eisler 1988
headed aceto- survived after 6 months
cowbird arsenite 6.6 mg/kg dw (whole body). All survived after 6 months
(Molothrus 33
ate" 99.8 11-day LC50
100 3-month LC1 00. Brain 6.1 mg/kg dw; liver 40.6 mg/kg dw
Mallards Sodium 25 Adult liver 0.49, duckling liver 0.65 mg/kg dw. No Stanley et al.
(Anas arsenate significant differences in body weight or growth rate in 1994
platyrflyn- ducklings, compared to controls fed 0.26 mglkg dw
chos) 100 Adult liver 2.4, duckling liver 4.5 mg/kg dw. Reduced Stanley et al.
body weight and lower growth rate at 14 days in ducklings 1994
from parents fed As. Antagonistic interactions observed
between As and Se
200 Duckling liver 5.1 mg/kg ww. Increased mortality, Hoffman et al.
decreased growth, and liver histopathology in ducklings 1992
fed a low-protein (7%) diet. As reduced effects of Se
when fed together in a diet with adequate protein (22%)
400 Adult liver 6.6, duckling liver 33 mglkg dw. Arsenic Stanley et al.
accumulated in adult liver and egg, reduced adult weight 1994
gain and liver weight, delayed onset of egg laying,
decreased whole egg weight, and caused eggshell
thinning. Reduced body weight, growth, and liver weight
in ducklings. Antagonistic interactions observed between
As and Se
One-day-old As (V) 300 Brain 0.8 mg/kg dw; liver 1.3 mglkg dw. Reduced growth Camardese
mallard rate, and standing and bathing time; increased resting et al. 1990
ducklings time over 10 weeks
(female) 30 Reduced growth rate over 10 weeks; no significant
bioaccumulation in brain or liver when compared to
controls

Table 4.-8iological effects of arsenicals in the diet on selected species
[Le50, median lethal concentration-50% mortality after a stated time interval.
Similarly, LC100 denotes 100% mortality; dw, dry weight]

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