Effects of Nutrient Replacement on Benthic Macroinvertebrates in an Ultraoligotrophic Reach of the Kootenai River, 2003–2010

  title={Effects of Nutrient Replacement on Benthic Macroinvertebrates in an Ultraoligotrophic Reach of the Kootenai River, 2003–2010},
  author={G. Wayne Minshall and Bahman Shafii and William J. Price and Charlie Holderman and Paul J. Anders and Gary T. Lester and Pat Barrett},
  booktitle={Freshwater Science},
Abstract: Large impoundments remove substantial amounts of sediment and nutrients from rivers and often limit production by downstream primary producers and secondary consumers. Nutrient levels and macroinvertebrate and fish abundance in the lower Kootenai River (7th order, mean annual discharge = 454 m3/s) in Idaho and Montana declined dramatically after Libby Dam was built in 1972. A subsequent study implicated ultraoligotrophic conditions (total dissolved P [TDP] ≤ 2 µg/L TDP) as a… Expand
Changes in Primary Producer and Consumer Communities in Response to Upstream Nutrient Addition in the Kootenai River, Idaho
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Worldwide, dams have had pervasive impacts on their associated river systems. In this study, we examined the effects of a large-scale dam on the downstream macroinvertebrate assemblages of a 65-kmExpand
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Characterization of the Kootenai River Aquatic Macroinvertebrate Community before and after Experimental Nutrient Addition, 2003-2006. [Chapter 3]
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An energy budget for the Kootenai River, Idaho (USA), with application for management of the Kootenai white sturgeon, Acipenser transmontanus
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Experimental Enrichment of a Coastal Stream in British Columbia: Effects of Organic and Inorganic Additions on Autotrophic Periphyton Production
Periphyton accumulation rates and alkaline phosphatase activity were examined in reaches of the Keogh River, British Columbia, following additions of grain and inorganic fertilizer as separate treatments during spring–summer 1981, and additions of labile organic matter to nutrient-deficient coastal areas were suggested. Expand
N and P limitation of benthos abundance in the Nechako River, British Columbia
Additions of inorganic N and P to replicated stream mesocosms were used to test the hypothesis that production of the benthic food web in the flow-controlled Nechako River, B.C., was N and P limited.Expand
Benthic algal and insect responses to nutrient enrichment of an in-stream mesocosm
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Increased Juvenile Salmonid Growth by Whole-River Fertilization
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Nutrients stimulate leaf breakdown rates and detritivore biomass: bottom-up effects via heterotrophic pathways
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The response of macroinvertebrate production to a pollution gradient in a headwater stream
Summary 1. This study quantified patterns of macroinvertebrate secondary production and stored benthic organic matter along a gradient of pollution and habitat channelisation over a 3-km reach ofExpand
Responses of Stream Periphyton and Benthic Insects to Increases in Dissolved Inorganic Phosphorus in a Mesocosm
Responses of stream periphytic algae and benthic insects to increases in dissolved inorganic phosphorus (P) were assessed in a streamside mesocosm in summer by biota from the stream. Expand
Macroinvertebrate response to salmon carcass analogue treatments: exploring the relative influence of nutrient enrichment, stream foodweb, and environmental variables
  • A. Kohler, D. Taki
  • Biology
  • Journal of the North American Benthological Society
  • 2010
Increased autotrophic productivity and the absence of major shifts in treatment stream macroinvertebrate community composition and structure suggest that SCA is a viable nutrient-enrichment strategy. Expand