. Brigham Young University science bulletin. Biology -- Periodicals. Biological Series, Vol, 18, No, 2 Alcae of Huntington Canyon, Utah 55 discussed Scenedesmus and other algae such as Pediastrum and Ctjclotella that are cosmopohtan in distribution and usually found on the bottom of ponds, ditches, and slovv-flovving streams where they live and reproduce until they are disturbed and become a part of the plankton. Production of diatoms on glass shdes in Tie Fork Pond was generally less than in Hunting- ton Creek, but since no current continually washed the diatoms downstream, numbers in the pla
. Brigham Young University science bulletin. Biology -- Periodicals. Biological Series, Vol, 18, No, 2 Alcae of Huntington Canyon, Utah 55 discussed Scenedesmus and other algae such as Pediastrum and Ctjclotella that are cosmopohtan in distribution and usually found on the bottom of ponds, ditches, and slovv-flovving streams where they live and reproduce until they are disturbed and become a part of the plankton. Production of diatoms on glass shdes in Tie Fork Pond was generally less than in Hunting- ton Creek, but since no current continually washed the diatoms downstream, numbers in the plankton of the two habitats were comparable. Trends similar to those observed in Tie Fork Pond occurred in other ponds throughout the Huntington Canyon drainage. One such pond is located adjacent to site 2. This pond maintained an extensive mat of Cham vulgaris throughout the year, with continual production and decom- position adding to the 2 feet of black organic mud on the bottom. A pond located about 2 miles east of the plant site was filled with moss rather than Chara. In May this pond contained Microspora sp. much as Tie Fork Pond and a bloom of Fragil- aria virescens which continued through early June. Microspora sp., Mougeotia sp. and Spiro- gyra sp. were abundant here in the early spring, and Oscillatoria limosa and O. tenuis became abundant in late June. Epithemia gibba was present from May to July and Navicula sp. and Nitzschia sp. were abundant in early summer. Green algae declined generally through the sum- mer, while filamentous blue green algae, es- pecially Oscillatoria tenuis and O. limosa, in-. Fig. 40. Shallow pond adjacent to the Right Fork of Huntington Creek, These small ponds represent one source of euplanktonic algae in the flora of Hun- tington Creek, Photographed April 28, 1972, creased greatly. Desmids were more abundant in this pond than in any other habitat sampled in Huntington Canyon. The dominant desmid was Closterium rnoniliferum, common from July
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