Filters: Tags: phosphorus (X)1,159 results (51ms)
St Lawrence River / Quantifying Sediment and Nutrient Loading in the St. Lawrence River and Watershed
Description of Work Since 2010, connecting channels have been included in each of the Great Lakes’ Lake Management Plans (LaMPs). Lake Ontario now includes both the Niagara River and the St. Lawrence River. The Niagara River is well characterized by a number of long-term programs, but because of the lack of tributary water-quality data, the St. Lawrence River and its tributaries constitute a data gap in the information needed for the Lake Ontario to fulfill its goals. Critical information needs, including basic water-quality parameters, total suspended solids, nutrients and flow data. These data are needed to aid in the identification of sources of nutrient and sediment loading to the St. Lawrence. The monitoring...
Gradients of chlorophyll A and water chemistry along an eutrophic reservoir with determination of the limiting nutrient by in situ nutrient addition
Nuisance blooms of heterocystous Cyanobacteria in Lake Winnipeg have nearly doubled in size since the mid 1990s. The increases are the result of a recent rapid increase in loading and concentration of phosphorus. The rapid increase in phosphorus is largely the result of two factors. The first factor is the result of rapidly increased livestock production and use of synthetic fertilizer in the Red River Valley, with smaller contributions of phosphorus from the city of Winnipeg and other human development in the Red and Winnipeg river basins. The second factor is the increased frequency and intensity of spring floods in the Red River watershed in recent years, which have greatly enhanced the transfer of phosphorus...
Effect of a one-time application of municipal biosolids on plant growth at a metal mine tailings impoundment in a semi-arid climate, Utah, USA
On the seasonal migration of the cyanobacterium Gloeotrichia echinulata in Lake Erken, Sweden, and its influence on the pelagic population
Laboratory measurement of ammonia, phosphorus and oxygen exchange at the sediment-water interface of Cannonsville Reservoir, New York
Role of wetlands in reducing phosphorus loading to surface water in eight watersheds in the Lake Champlain Basin
Phosphorus storage capacity of uplands, wetlands and streams of the Lake Okeechobee Watershed, Florida
Demonstrating ecological engineering for wastewater treatment in a Nordic climate using aquaculture principles in a greenhouse mesocosm