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Date Permissions Signed

1-1-2019

Date of Award

Winter 2019

Document Type

Masters Thesis

Degree Name

Master of Science (MS)

Department

Environmental Sciences

First Advisor

Matthews, Robin A., 1952-

Second Advisor

Bodensteiner, Leo R., 1957-

Third Advisor

Sofield, Ruth M.

Abstract

The objective of my study was to characterize the water quality conditions and algal species composition of six mountain lakes in the North Cascades of Washington, USA. Exploratory data analysis examined water quality conditions and algal species composition separately, then determined if they were related. The lakes exhibited median temperatures from 13.3 °C to 20.8 °C, had nitrate and soluble reactive phosphate concentrations below 100 µg/L and 6 µg/L, respectively, were slightly acidic (pH 5.1-6.9), and had median dissolved oxygen concentrations ranging from 6.7 mg/L to 10.6 mg/L. Over 340 non-diatom algal taxa were identified. Algal species richness was positively correlated with water temperature (τ = 0.353, p-value

Type

Text

Keywords

Mountain Lakes, Biomonitoring

Publisher

Western Washington University

OCLC Number

1087509948

Subject – LCSH

Freshwater algae--Ecology--North Cascades (B.C. and Wash.); Algal communities--North Cascades (B.C. and Wash.); Water quality biological assessment--North Cascades (B.C. and Wash.); Lake ecology--North Cascades (B.C. and Wash.)

Geographic Coverage

North Cascades (B.C. and Wash.)

Format

application/pdf

Genre/Form

masters theses

Language

English

Rights

Copying of this thesis in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this thesis for commercial purposes, or for financial gain, shall not be allowed without the author’s written permission.

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