Chronic Effects of Low Dissolved Oxygen Concentrations on the Fathead Minnow (Pimephales promelas)

1971 ◽  
Vol 28 (8) ◽  
pp. 1119-1123 ◽  
Author(s):  
William A. Brungs
Keyword(s):  
Dissolved Oxygen ◽  
Fathead Minnow ◽  
Pimephales Promelas ◽  
Fathead Minnows ◽  
Low Dissolved Oxygen ◽  
Chronic Effects ◽  
Lower Oxygen ◽  
Time Required ◽  
Oxygen Concentrations

Fathead minnows were exposed to constant dissolved oxygen concentrations (1.0–5.0 mg/liter) for 11 months. The number of eggs produced per female was reduced at 2.0 mg/liter; no spawning occurred at 1.0 mg/liter. Fry growth was reduced significantly at all concentrations below the control (7.9 mg/liter). Fry survival was reduced at 4.0 mg/liter and lower dissolved oxygen concentrations; 18% of the survivors at 4.0 mg/liter were deformed. The time required for hatching was increased at successively lower oxygen concentrations by as much as 50% (from 5.0 under control conditions to 7.8 days at 2.0 mg/liter), but no effect on percentage hatch was observed.

INFLUENCE OF TEMPERATURE AND DISSOLVED OXYGEN ON THE ACUTE TOXICITY OF PROFENOFOS TO FATHEAD MINNOWS (PIMEPHALES PROMELAS)

2002 ◽  
Vol 25 (3) ◽  
pp. 231-245 ◽  
Author(s):  
K. N. Baer ◽  
K. Olivier ◽  
C. N. Pope
Keyword(s):  
Acute Toxicity ◽  
Dissolved Oxygen ◽  
Pimephales Promelas ◽  
Fathead Minnows ◽  
Influence Of Temperature

Effects of Long-Term Exposure to Carbaryl (Sevin) on Survival, Growth, and Reproduction of the Fathead Minnow (Pimephales promelas)

1972 ◽  
Vol 29 (5) ◽  
pp. 583-587 ◽  
Author(s):  
A. R. Carlson
Keyword(s):  
Life Cycle ◽  
Fathead Minnow ◽  
Pimephales Promelas ◽  
Threshold Concentration ◽  
Fathead Minnows ◽  
Motile Sperm ◽  
High Concentration ◽  
Toxicant Concentration ◽  
Growth And Reproduction

When fathead minnows (Pimephales promelas) were exposed to five concentrations (0.008–0.68 mg/liter) of the insecticide carbaryl for 9 months and throughout a life cycle, the highest concentration prevented reproduction and decreased survival. At the high concentration, testes contained motile sperm and ovaries were in a flaccid condition and appeared to be in a resorptive state. At the 0.68 mg/liter concentration, carbaryl appeared to contribute to mortality of larvae (produced by unexposed parents) within 30 days of hatching. Survival of young grown in the 0.008 mg/liter concentration was reduced. Since no demonstrable effects were noted for survival, growth, or reproduction at the 0.017, 0.062, and 0.21 mg/liter concentrations, this low survival value is considered not due to carbaryl. The 96-hr median tolerance concentration (TL 50) and the lethal threshold concentration (LTC) for 2-month-old fathead minnows were 9.0 mg/liter. The maximum acceptable toxicant concentration (MATC) for fathead minnows exposed to carbaryl in water with a hardness of 45.2 mg/liter and a pH of 7.5 lies between 0.21 and 0.68 mg/liter. The application factors (MATC/96-hr TL50 and MATC/LTC) both lie between 0.023 and 0.075.

Lethal Low Dissolved Oxygen Concentrations for Postlarvae and Early Juvenile Penaeus setiferus at Different Salinities and pH

1998 ◽  
Vol 29 (2) ◽  
pp. 221-229 ◽  
Author(s):  
Evenor Martínez ◽  
Miguel Aguilar ◽  
Limber Trejo ◽  
Isaac Hernández ◽  
Eugenio Díaz-Iglesia ◽  
...  
Keyword(s):  
Dissolved Oxygen ◽  
Early Juvenile ◽  
Low Dissolved Oxygen ◽  
Penaeus Setiferus ◽  
Oxygen Concentrations

A Computer Simulation of the Effects of Superimposed Mortality Due to Pollutants on Populations of Fathead Minnows (Pimephales promelas)

1971 ◽  
Vol 28 (8) ◽  
pp. 1107-1112 ◽  
Author(s):  
William T. Waller ◽  
Richard E. Sparks ◽  
John Cairns Jr. ◽  
M. L. Dahlberg
Keyword(s):  
Computer Simulation ◽  
Fathead Minnow ◽  
Environmental Variability ◽  
Pimephales Promelas ◽  
Quality Criteria ◽  
Water Quality Criteria ◽  
Fathead Minnows ◽  
Limited Data ◽  
Proportional Mortality ◽  
Generation Cycle

This computer simulation study tested the effects of 99 levels of proportional mortality on fathead minnow (Pimephales promelas) populations, assuming that the parent–progeny relationship is of the form proposed by Ricker. Limited data from two studies on three lakes were available to fit the model and obtain estimates of parameters for fathead minnow populations. Based on these estimates, 25 replications of a 50-generation cycle were simulated under two levels of environmental variability. Arbitrary extinction levels of 5, 100, and 500 females had little effect on the results. Increasing environmental variation lowered the percentage mortality at which population extinctions occurred. In general, the results are compatible with the recommendation of the U.S. Committee on Water Quality Criteria, that the maximum concentration of zinc to which fish could be continuously exposed should not exceed [Formula: see text] the 96-hr TLm (median tolerance limit) — a concentration that caused a 50% reduction in the mean number of eggs laid per female by fathead minnows in a laboratory study.

scholarly journals Fish Rescue during Streamflow Intermittency May Not Be Effective for Conservation of Rio Grande Silvery Minnow

Water ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3371
Author(s):  
Thomas P. Archdeacon ◽  
Tracy A. Diver ◽  
Justin K. Reale
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Fish Assemblages ◽  
Sublethal Effects ◽  
Rio Grande ◽  
Quality Data ◽  
Water Quality Data ◽  
Low Dissolved Oxygen ◽  
Rio Grande Silvery Minnow ◽  
Oxygen Concentrations

Streamflow intermittency can reshape fish assemblages and present challenges to recovery of imperiled species. During streamflow intermittency, fish can be subjected to a variety of stressors, including exposure to crowding, high water temperatures, and low dissolved oxygen, resulting in sublethal effects or mortality. Rescue of fishes is often used as a conservation tool to mitigate the negative impacts of streamflow intermittency. The effectiveness of such actions is rarely evaluated. Here, we use multi-year water quality data collected from isolated pools during rescue of Rio Grande silvery minnow Hybognathus amarus, an endangered minnow. We examined seasonal and diel water quality patterns to determine if fishes are exposed to sublethal and critical water temperatures or dissolved oxygen concentrations during streamflow intermittency. Further, we determined survival of rescued Rio Grande silvery minnow for 3–5 weeks post-rescue. We found that isolated pool temperatures were much warmer (>40 °C in some pools) compared to upstream perennial flows, and had larger diel fluctuations, >10 °C compared to ~5 °C, and many pools had critically low dissolved oxygen concentrations. Survival of fish rescued from isolated pools during warmer months was <10%. Reactive conservation actions such as fish rescue are often costly, and in the case of Rio Grande silvery minnow, likely ineffective. Effective conservation of fishes threatened by streamflow intermittency should focus on restoring natural flow regimes that restore the natural processes under which fishes evolved.

Aerobic Sludge Digestion under Low Dissolved Oxygen Concentrations

2004 ◽  
Vol 76 (5) ◽  
pp. 453-462 ◽  
Author(s):  
Ravi Sankar Arunachalam ◽  
Hemant K. Shah ◽  
Lu-Kwang Ju
Keyword(s):  
Dissolved Oxygen ◽  
Low Dissolved Oxygen ◽  
Sludge Digestion ◽  
Aerobic Sludge ◽  
Oxygen Concentrations
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