Factors influencing inorganic turbidity in a great plains reservoir

Abstract

Nephelometric turbidity and Secchi disc were measured at 16 sampling stations at Lake Carl Blackwell, Oklahoma on 54 dates from 12 February 1982 to 24 January 1983. Measurements of precipitation, wind velocity, effective fetch, water depth, and sediment particle size were also recorded. Turbidity values ranged from 16 to 1 140 NTU and Secchi disc transparency from 2 to 110 cm. Turbidity was generally highest at shallow water sampling stations in the western end and upper arms of Lake Carl Blackwell and decreased with increasing depth. Increases in turbidity during the spring of 1982 were attributed to sediment resuspension and drastic turbidity increases were observed following heavy May rains. Two multiple regression models were developed to predict nephelometric turbidity levels for a given set of climatological and morphometric parameters. One model was based on data for the entire sampling period and is useful in predicting turbidity under high inflow conditions. A second model was derived from data collected prior to periods of heavy rains and is useful in predicting turbidity under more common conditions of moderate winds and rain.

Seasonal Variability of Optical Properties in a Highly Turbid Lake (Laguna Chascomús, Argentina)

“…Nephelometric turbidity measured in Laguna Chascomús lay within the range reported for the highly turbid Lake Carl Blackwell (16‐1140 NTU) by Nolen et al. (28). All the previous examples are optically complex systems and exceptionally turbid environments.…”

“…The OASs concentrations in lakes and rivers often exceed the limits found in marine waters (24,26), and may display large variability both, within and between water bodies, e.g. (8,27–30).…”

Turbidity of Landlocked Fall Chinook Salmon Ovarian Fluid in Relation to Egg Survival

“…Salmon spawning operations on Lake Oahe use lake water for sperm activation because of the difficulty in transporting clean hatchery water. Turbidity in lake water varies due to soil erosion [16], resuspension of bottom sediments [16], phytoplankton [17], fine woody particles [18], and weather conditions [19]. The variation in Lake Oahe water turbidity makes it difficult to use the turbidity of fertilization solutions containing lake water of fluctuating turbidity and ovarian fluid as a predictor of egg survival.…”

Benthic community metabolism in deep and shallow Arctic lakes during 13 years of whole–lake fertilization

“…In such cases, additional nutrients may not benefit benthic algae especially considering the shading effects of increased phytoplankton biomass in surface waters. In shallow lakes with weak or no stratification, there is a balance between greater recycling of nutrients to the photic zone through physical mixing (Fee ; Nolen et al ) and greater uptake of nutrients by benthic algae (Jäger and Diehl ).…”