. Brigham Young University science bulletin. Biology -- Periodicals. Biological Series, \'ol. 18. No. 2 of Huntington Canyon, Utah 43 lOOO o o o s Z3 Z z o z < a. o z z < z 750 500 250 PERIPHYTON NANNOPLANKTON. APRIL JUNE JULY SEPT NOV Fig. 31. Densitj' of nannoplankton and periphyton at the campground (site 4). 300 O 225 8 5 150 iJ to 5 z 75 X JAN MAR scoured many diatoms from the substrate into the current. Periph\ton production continued to rise in Julv 1971, when nannoplankton levels dropped, probably because fewer diatoms were removed from the substrate by the current dur- i
. Brigham Young University science bulletin. Biology -- Periodicals. Biological Series, \'ol. 18. No. 2 of Huntington Canyon, Utah 43 lOOO o o o s Z3 Z z o z < a. o z z < z 750 500 250 PERIPHYTON NANNOPLANKTON. APRIL JUNE JULY SEPT NOV Fig. 31. Densitj' of nannoplankton and periphyton at the campground (site 4). 300 O 225 8 5 150 iJ to 5 z 75 X JAN MAR scoured many diatoms from the substrate into the current. Periph\ton production continued to rise in Julv 1971, when nannoplankton levels dropped, probably because fewer diatoms were removed from the substrate by the current dur- ing this period. Tliese periphytic diatoms were subsequently released into the current during earh" fall when plankton levels increased again. The November nannoplankton increase and sub- sequent relativeh' high winter levels were prob- ably due to new colonization, since periphyton levels also rose during this period. The nannoplankton cycle for site 4 basically followed the trend described for site 3. High diatom levels were evident from April to late June, followed by a summer low, and a high pulse in September (Fig. 32). The decline in plankton in October and subsequent rise in No- vember followed a trend similar to that observed at Lawrence, Stuart Station, and Bear Canyon, although the plant site did not exhibit the No- vember increase. The plant site also had much lower plankton levels on June 29, 1971, than the campground. Turbidity in Huntington Creek lOOO 750 O z o z < I a. o z z <. z -J CO 500 250 PLANT SITE CAMPGROUND. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Brigham Young University. Provo, Utah : Brigham Young University
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