Physical Sciences and Mathematics Commons^™

Nutrient And Sediment Loss From A Niagara County Watershed : The East Branch Of Twelvemile Creek, May 1998 To May 2000, Joseph Makarewicz, Theodore Lewis

Joseph C Makarewicz

Discharge and nutrient loss from a Niagara County tributary, Twelvemile Creek, was intensely monitored for two consecutive years by automated gauging and sampling techniques. This report focuses on the two annual cycles monitored (19 May 1998 to 18 May 1999 [Year 1] and 19 May 1999 to 17 May 2000 [Year 2]). The sampling regime allows an accurate measurement of discharge, nutrient and soil loss from a watershed during hydrometeorological events and nonevent conditions. Discharge and concentrations of nitrate, total phosphorus, sodium, total suspended solids, and total kjeldahl nitrogen were measured and converted into the amount of material lost from …

Nutrients And Suspended Solid Losses From Oneida Lake Tributaries, 2002-2003: Butternut, Big Bay, Chittenango, Canaseraga, Cowaselon, Fish, Limestone, Oneida, Scriba And Wood Creeks, Joseph Makarewicz, Theodore Lewis

Joseph C Makarewicz

In summary, the goal of this report is to provide:

 An interpretive summary of chemistry trends for each subwatershed sampled in the Oneida Lake watershed;

 A prioritization of the tributaries, based on nutrient and soil loss; and

 A comparison between nutrient and soil loss from Oneida Lake subwatersheds to other central New York watersheds with different land use practices.

The Muckland Demonstration Project : Agricultural Non-Point Source Pollution Control, Joseph Makarewicz, Theodore Lewis

Joseph C Makarewicz

The many muck fields in agriculture that exist in Oswego County offer an opportunity to demonstrate the feasibility of using artificially constructed wetlands to reduce nutrient levels in water draining from these highly fertilized, productive agricultural systems. An artificial wetland was constructed adjacent to a large muckland farm raising onions and sorghum. Water draining from the muck fields was pumped into the constructed wetland and allowed to flow naturally out of the wetland after a retention period determined by the flow regime. The question being asked was can nutrients and sediments be effectively removed from muckland drainage water by an …

Structure And Function Of The Zooplankton Community Of Mirror Lake, New Hampshire, Joseph Makarewicz, Gene Likens

Joseph C Makarewicz

An intensive study of the zooplankton community of Mirror Lake, New Hampshire, was undertaken over a 3-yr period. Our objectives in the lake study have included measurements of a number of attributes of the zooplankton community that integrate structure and function at the ecosystem level; among these are dispersion, biomass, productivity, respiration, and nutrient cycling. Eight species of rotifers and 3 species of cladocerans were successfully cultured. Generation time for planktonic rotifers was -8-10 days (170C). The effect of higher food levels on rotifers was to shorten generation time and to increase brood size. In cladocerans, high food levels caused …