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Periphyton development of inshore areas on Pend Oreille Lake, northern Idaho. Research technical completion report, 14-08-0001-G1559-05 Item Info

Sixteen sites were established at south, mid, and north lake areas on Pend Oreille Lake, Idaho in 1989. Information on inshore water chemistry, bacteria, physical/chemical conditions, and productivity of attached benthic algae and aquatic macrophytes was gathered. Sites were sampled in July, August, and September 1989. Mean inshore total phosphorus was greater near developed areas than undeveloped areas all three months. Highest fecal coliform counts were seen in August at Bayview (south lake) (50/100ml) and Trestle Creek (10/100ml), two developed sites. Conversely, fecal streptococci counts were highest at Warren Island (greater than 100/100ml) and Talache (72/100ml), two relatively undeveloped sites. Maximum summer transparencies were found in mid and south lake areas, up to 11.1 m. Shallow north bays had the lowest transparency readings with a minimum of 0,35 m. Mean chlorophyll a values from attached algae correlated with level of shoreline development or higher values at more developed sites and lower values at less developed sites. Total (Aug. plus Sept.) mean chlorophyll a on artificial substrates was 4.3 mg/m^2 for developed sites vs 2.1 mg/m^2 at undeveloped sites. August and September aquatic macrophyte data show highest production 3.0 to 4.9 m deep, with a rapid decline from 4.9 to 6.7 m. Production was found to be at or near zero from 6.7 to 10.1 m deep.

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Title:
Periphyton development of inshore areas on Pend Oreille Lake, northern Idaho. Research technical completion report, 14-08-0001-G1559-05
Authors:
Falter, C. Michael; Olson, Dale
Date Created (ISO Standard):
1990-09
Description:
Sixteen sites were established at south, mid, and north lake areas on Pend Oreille Lake, Idaho in 1989. Information on inshore water chemistry, bacteria, physical/chemical conditions, and productivity of attached benthic algae and aquatic macrophytes was gathered. Sites were sampled in July, August, and September 1989. Mean inshore total phosphorus was greater near developed areas than undeveloped areas all three months. Highest fecal coliform counts were seen in August at Bayview (south lake) (50/100ml) and Trestle Creek (10/100ml), two developed sites. Conversely, fecal streptococci counts were highest at Warren Island (greater than 100/100ml) and Talache (72/100ml), two relatively undeveloped sites. Maximum summer transparencies were found in mid and south lake areas, up to 11.1 m. Shallow north bays had the lowest transparency readings with a minimum of 0,35 m. Mean chlorophyll a values from attached algae correlated with level of shoreline development or higher values at more developed sites and lower values at less developed sites. Total (Aug. plus Sept.) mean chlorophyll a on artificial substrates was 4.3 mg/m^2 for developed sites vs 2.1 mg/m^2 at undeveloped sites. August and September aquatic macrophyte data show highest production 3.0 to 4.9 m deep, with a rapid decline from 4.9 to 6.7 m. Production was found to be at or near zero from 6.7 to 10.1 m deep.
Subjects:
Lakes Aquatic productivity Phosphorus Coliforms Streptococcus Land development
Location:
Lake Pend Oreille; Northern Idaho
Latitude:
48.14
Longitude:
-116.4
Collection:
IWRRI
Series:
Water for Idaho
IWRRI number:
199001
Rights:
In copyright, educational use permitted. Educational use includes non-commercial reproduction of text and images in materials for teaching and research purposes. For other contexts beyond fair use, including digital reproduction, please contact the University of Idaho Library Special Collections and Archives Department at libspec@uidaho.edu. The University of Idaho Library is not liable for any violations of the law by users.
Publisher:
Idaho Water Resources Research Institute; University of Idaho
Contributing Institution:
University of Idaho
Type:
Text
Format:
application/pdf
Cataloger:
KIT
Date Digitized:
2017-09-11

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Preferred Citation:
"Periphyton development of inshore areas on Pend Oreille Lake, northern Idaho. Research technical completion report, 14-08-0001-G1559-05", Idaho Waters Digital Library, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/iwdl/items/iwdl-199001.html
Rights
Rights:
In copyright, educational use permitted. Educational use includes non-commercial reproduction of text and images in materials for teaching and research purposes. For other contexts beyond fair use, including digital reproduction, please contact the University of Idaho Library Special Collections and Archives Department at libspec@uidaho.edu. The University of Idaho Library is not liable for any violations of the law by users.
Standardized Rights:
http://rightsstatements.org/vocab/InC-EDU/1.0/
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