Effects of forested buffers on benthic macroinvertebrate indicators of water quality in the Western Finger Lakes, New York
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Journal title
Inland WatersDate Published
2021-01-18
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Forested riparian buffers are implemented by watershed managers to reduce pollutant runoff into waterbodies. They have been shown to accomplish this task in rivers and streams, but few studies have investigated their efficacy around lakes. Hemlock and Canadice are oligo-mesotrophic lakes with reforested watersheds, including a shoreline buffer strip. Immediately to the west and east of Hemlock and Canadice, Conesus and Honeoye lakes are unprotected, meso-eutrophic systems with mostly mixed, forested, agricultural, and developed land uses. This study explored whether having a shoreline forest buffer strip supports a macroinvertebrate community indicative of good water quality in lakes. In addition, this study examined relationships between individual subwatershed land use and biotic indicators of water quality, as determined by benthic macroinvertebrates. Macroinvertebrate community composition showed some dissimilarity between lakes (R = 0.09, p = 0.04), with the largest dissimilarity between Conesus and Honeoye. Comparisons did not follow expected patterns based on land use, management protections, and presence of a shoreline forest buffer strip. No difference was found in a biotic index of water quality between the lakes. The benthic community of each lake was rated as moderately impacted by humans. Subwatershed land use generally did not correlate with biotic indices of water quality within lakes. This finding suggests that near-shore forest buffers had no measurable effect on benthic macroinvertebrate communities and their biotic indicators of water quality. Macroinvertebrate communities in these lakes are likely driven by within-lake habitat conditions and legacy effects of agricultural land.Citation
: Mitchell C. Owens, Clayton J. Williams & James M. Haynes (2021) Effects of forested buffers on benthic macroinvertebrate indicators of water quality in the Western Finger Lakes, New York, Inland Waters, 11:1, 78-88, DOI: 10.1080/20442041.2020.1804786DOI
:https://doi.org/10.1080/20442041.2020.1804786ae974a485f413a2113503eed53cd6c53
:https://doi.org/10.1080/20442041.2020.1804786
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