Perlphyton as Indicators of Enrichment in Lake Pend Oreille, Idaho

Kann, Jacob; Falter, C. Michael

doi:10.1080/07438148909354397

Cited by 16 publications

(9 citation statements)

References 29 publications

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“…1; Table 1), have patchy development like Lake Crescent and are exhibiting nearshore responses consistent with nutrient loading. Lake Pend Oreille, though unchanged in the pelagic zone since studies began in 1911, has exhibited uncharacteristically high periphyton biomass in the littoral zone relative to its low nutrient status (Falter, 2004) with higher biomass near developed sites (Kann & Falter, 1989). Lake Pend Oreille, though unchanged in the pelagic zone since studies began in 1911, has exhibited uncharacteristically high periphyton biomass in the littoral zone relative to its low nutrient status (Falter, 2004) with higher biomass near developed sites (Kann & Falter, 1989).…”

Section: Study Sitesmentioning

confidence: 99%

“…This large, clear lake is a popular recreation destination for fishing, swimming and boating (Falter, 2004). Lake Pend Oreille, though unchanged in the pelagic zone since studies began in 1911, has exhibited uncharacteristically high periphyton biomass in the littoral zone relative to its low nutrient status (Falter, 2004) with higher biomass near developed sites (Kann & Falter, 1989). Similarly, Priest Lake is oligotrophic and exhibits no changes in pelagic water quality, but has shown unusually high algal biomass in the littoral zone (Rothrock & Mosier, 1997).…”

Section: Study Sitesmentioning

confidence: 99%

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Effects of shoreline development on the nearshore environment in large deep oligotrophic lakes

et al. 2008

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Summary 1. In large deep oligotrophic lakes, the shallow nearshore waters may provide the most important habitat for animals to feed and breed, and it is this area of the lake where humans are most likely to have initial impacts as the shoreline is developed. Nutrients in fertilizers, sediments and sewage effluents are likely to be rapidly intercepted by nearshore algae at the lake edge, having heterogeneous effects nearshore before offshore effects are noted. 2. Here we examined the spatially explicit effects of residential development on nearshore periphyton communities in three large deep oligotrophic lakes that have all experienced modest residential development in the Pacific Northwest of the United States. We demonstrate that substantial nearshore changes in the basal food web are detectable even with low levels of shoreline development. These changes can potentially affect whole‐lake food web dynamics. 3. For our primary study site (Lake Crescent, Washington, USA), we found that algal biomass and accumulation of detritus were higher at developed sites. In addition, both macroinvertebrate and periphyton communities exhibited a shift in composition with more detritivores and filamentous green algae at developed sites. These differences were more pronounced during the spring than at other times of year. 4. A complementary investigation of field patterns in Priest Lake and Lake Pend Oreille (Idaho, USA) suggested that, although spatial and temporal patterns were idiosyncratic, indicators of productivity and the presence of filamentous green algae were generally higher at developed sites across lakes. 5. Stable isotope signatures and water column nutrients were not useful in distinguishing developed and undeveloped sites, increasing the potential usefulness of periphyton monitoring during early stages of lake development. 6. A laboratory investigation suggested that common macroinvertebrate grazers assimilated a much greater proportion of diatoms than the filamentous green algae that are associated with fertilization at developed sites. 7. These findings have at least two clear implications: (i) periphyton may be used to detect human impacts before disturbance is evident in offshore monitoring programmes and (ii) nearshore impacts in response to modest residential development have the potential to disrupt lake food web dynamics.

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Section: Study Sitesmentioning

confidence: 99%

Section: Study Sitesmentioning

confidence: 99%

Effects of shoreline development on the nearshore environment in large deep oligotrophic lakes

et al. 2008

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“…The lack of a response by the LA periphyton also could be related to C limitation in LA lakes (Fairchild and Sherman 1993). Despite these concerns, a gathering body of evidence suggests that indices derived from benthic assemblages may be more effective and sensitive measurements of eutrophication than their phytoplanktic counterparts, particularly in sites experiencing increased shore degradation (Kann andFalter 1989, Lambert et al 2008).…”

Section: Model Performancementioning

confidence: 99%

Assessment of ecological status in UK lakes using benthic diatoms

Bennion

Kelly²,

Juggins

et al. 2014

Freshwater Science

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“…By definition, nonpoint source pollution results from materials entering a stream from sources which usually cannot be clearly defined. Periphyton growth has long been recognized as an indicator of water quality and has been utilized in both lentic and lotic systems (Tilley and Haushild, 1975;Kann and Falter, 1989). Nutrient enrichment has been described as one of the primary nonpoint source pollutants associated with agricultural runoff (Clark et al, 1985).…”

Section: Introductionmentioning

confidence: 99%

“…Surface runoff of fertilizers containing nitrogen and phosphorus provide substantially higher concentrations of what are normally limiting factors for periphyton growth. Periphyton growth has long been recognized as an indicator of water quality and has been utilized in both lentic and lotic systems (Tilley and Haushild, 1975;Kann and Falter, 1989). Nutrient additions to streams not only increase periphyton growth, they can also change periphyton community composition and spatial distribution (Pringle, 1990).…”

Section: Introductionmentioning

confidence: 99%

PATTERNS OF PERIPHYTON CHLOROPHYLL α IN AN AGRICULTURAL NONPOINT SOURCE IMPACTED STREAM¹

Brusven

1992

J American Water Resour Assoc

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An agricultural nonpoint source polluted stream in northern Idaho was examined to determine seasonal and longitudinal patterns of periphyton chlorophyll α. Chlorophyll a was measured at eight sites along Lapwai Creek, a fifth order stream impacted by agricultural runoff containing nutrients and eroded soils. Seasonally, periphyton chlorophyll α was lowest in the spring (cumulative x̄= 60.4 mg m−2) and highest in the summer (cumulative x̄= 222 mg m−2). Winter concentrations were higher than expected (cumulative x̄= 168.6 mg m−2). The headwaters, flowing through an open grassy meadow, had the lowest concentrations of the study (two‐year x̄= 49.7 mg m−2). Immediately below a small, eutrophic reservoir, periphyton chlorophyll α increased markedly (two‐year x̄= 155.8 mg m−2) and remained high through a deep canyon (two year x̄= 135.5 mg m−2) and down to the mouth of the stream (two‐year x̄= 172.3 mg−2). Periphyton chlorophyll α in Lapwai Creek was at least two times greater than values reported in the literature for comparable, undisturbed Idaho streams. We suggest that increased nutrient concentrations via agricultural nonpoint source pollution and increased light penetration from the removal of large, woody riparian vegetation have resulted in high periphyton chlorophyll α along the continuum of Lapwai Creek.

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Perlphyton as Indicators of Enrichment in Lake Pend Oreille, Idaho

Cited by 16 publications

References 29 publications

Effects of shoreline development on the nearshore environment in large deep oligotrophic lakes

Effects of shoreline development on the nearshore environment in large deep oligotrophic lakes

Assessment of ecological status in UK lakes using benthic diatoms

PATTERNS OF PERIPHYTON CHLOROPHYLL α IN AN AGRICULTURAL NONPOINT SOURCE IMPACTED STREAM¹

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Perlphyton as Indicators of Enrichment in Lake Pend Oreille, Idaho

Cited by 16 publications

References 29 publications

Effects of shoreline development on the nearshore environment in large deep oligotrophic lakes

Effects of shoreline development on the nearshore environment in large deep oligotrophic lakes

Assessment of ecological status in UK lakes using benthic diatoms

PATTERNS OF PERIPHYTON CHLOROPHYLL α IN AN AGRICULTURAL NONPOINT SOURCE IMPACTED STREAM1

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PATTERNS OF PERIPHYTON CHLOROPHYLL α IN AN AGRICULTURAL NONPOINT SOURCE IMPACTED STREAM¹