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An Ecological Assessment Of The Trophic Structure Of York Pond In Coos County Milan, Nh, Christopher R. Peter
An Ecological Assessment Of The Trophic Structure Of York Pond In Coos County Milan, Nh, Christopher R. Peter
Center for Freshwater Biology
We examined the physical, chemical and biological properties of York Pond in Coos County Milan, NH as a part of a 6-lake study. Chemical and physical characteristics measured included: total phosphorus and nitrogen, turbidity, light profiles with Secchi disk depth, specific conductivity, oxidation-reduction potential, dissolved oxygen, and temperature. Biological analysis included: phytoplankton percentage, chlorophyll a fluorescence, zooplankton abundance and zooplankton biomass. York Pond had eutrophic levels of several parameters in the epilimnion, including: chlorophyll a (39.4 + 1.04 µgL-1), total phosphorus (46.3 + 0.67 µgL-1), total nitrogen (843.3 + 18.48 µgL-1), turbidity (22.0 + 0.09 NTU), and percentage of cyanobacteria …
An Assessment Of The Physical, Chemical, And Biological Properties Of Christine Lake, Nh, W. Travis Godkin
An Assessment Of The Physical, Chemical, And Biological Properties Of Christine Lake, Nh, W. Travis Godkin
Center for Freshwater Biology
As part of a comparative assessment of seven New Hampshire lakes, performed throughout the month of September 2003, students and faculty from the University of New Hampshire’s Center for Freshwater Biology sampled Christine Lake in Stark, NH. The goal of the study was to quantify the lake’s physical, chemical, and biological properties and compare it to the six other lakes studied, as well as to results from identical sampling of Christine Lake in June, 2003.
Christine Lake is an oligotrophic lake with very little primary production and low densities of zooplankton. Nutrient levels were low, likely due to the forested …
Algal Polyunsaturated Fatty Acids And Effects On Plankton Ecology And Other Organisms, Miyoshi Ikawa
Algal Polyunsaturated Fatty Acids And Effects On Plankton Ecology And Other Organisms, Miyoshi Ikawa
Center for Freshwater Biology
A review and discussion of the effects of algal polyunsaturated fatty acids (PUFAs) on phytoplankton and zooplankton ecology and their effects on other animal systems. Topics discussed also include the relationship of cyanobacterial classification to PUFA occurrence, lipid concentrations occurring in the aqueous environment, the general effect of microalgae on zooplankton, and how algal PUFAs may be exerting their inhibitory and toxic effects.