Probabilistic relationships between acid-base chemistry and fish assemblages in streams of the western Adirondack Mountains, New York, USA

Canadian Journal of Fisheries and Aquatic Sciences
By: , and 

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Abstract

Surface waters across much of the Adirondacks of New York were acidified in the late 20th century but began to recover after the 1990 amendments to the Clean Air Act. Little data, however, were available to characterize biological impacts and predict recovery of fish assemblages in regional streams. Quantitative fish and chemistry surveys were completed in 47 headwater streams during summer 2014-16 to develop logistic (probabilistic) models that characterize the status of contemporary fish assemblages and predict how different N and S deposition loads may affect future fish assemblages. Models for Ali and richness ≥1 species, ANC and total density >400 fish/0.1 ha, ANC and total biomass >1500 g/0.1, presence of Brook Trout, trout density >200 fish/0.1 ha, and trout biomass >1000 g/0.1 ha were suitable for evaluating community and population responses to changes in acid-base chemistry. Anticipated changes in national (US) secondary standards for atmospheric emissions of NOx and SOx to achieve target N and S deposition loads will alter acid-base chemistry and the probabilities for observing various levels of fish metrics in streams across the region and elsewhere.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Probabilistic relationships between acid-base chemistry and fish assemblages in streams of the western Adirondack Mountains, New York, USA
Series title Canadian Journal of Fisheries and Aquatic Sciences
DOI 10.1139/cjfas-2018-0260
Volume 76
Issue 11
Year Published 2019
Language English
Publisher Canadian Science Publishing
Contributing office(s) New York Water Science Center
Description 14 p.
First page 2013
Last page 2026
Country United States
State New York
Other Geospatial Adirondack Mountains
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