Project

Southeast Stream Quality Assessment

PREVIOUS PROJECT

The Southeast Stream Quality Assessment (SESQA) study characterized watershed and water quality parameters, with the goal of determining the factors that have the greatest potential to alter biotic condition across the southeast.

TAXA

Odontidium | Amphora bicapitata | Encyonema minutum var. pseudogracilis | Encyonema pergracile | Fallacia subhamulata | Fallacia vitrea | Fragilariforma marylandica | Halamphora latecostata | Hippodonta pseudacceptata | Luticola minor | Luticola mobiliensis | Navicula ingenua | Navicula kotschyi | Nitzschia angustata | Odontidium hyemale | Odontidium mesodon | Placoneis anglophila | Prestauroneis protracta | Sellaphora stauroneioides | Stauroneis smithii var. incisa | Synedra goulardi | Tetracyclus rupestris | Ulnaria contracta |

LINKS

Design and methods of the SESQA Survey
The Southeast Stream Quality Assessment

NEWS

Species composition and abundance of diatoms in streams and rivers are a crucial measure of biotic condition as diatoms are sensitive to impacts caused by human activities such as urbanization, flow alteration, and the loading of contaminants, nutrients and sediment. Regional surveys of rivers by the U.S. Geological Survey
(USGS) National Water Quality Assessment Program (NAWQA) were designed to evaluate the effects of these stressors on aquatic organisms, including diatoms.

Algal samples were collected at 108 sites in 2014, from streams representing gradients in chemical and physical alteration across the southeast region. More than 375 taxa were identified during analysis for species composition and abundance. A flora of diatoms in the region was published:

Bishop, I.W., Esposito, R.M., Tyree, M. and Spaulding, S.A. 2017. A diatom voucher flora from selected southeast rivers (USA). Phytotaxa, (in press).

A number of taxon pages were developed based on this material. In addition, a workshop on species of Gomphonema was based primarily on specimens from the southeast.

Funding

US Geological Survey

Rocky Mountain Cooperative Ecosystem Study Unit (CESU) Agreement G15AC00104 | Diane McKnight

Participants

Ian Bishop

Professional Research Associate, University of Colorado, Boulder
Review Board, This Website


Meredith Tyree

Professional Research Associate, Institute of Arctic and Alpine Research, University of Colorado


Sarah Spaulding

Ecologist, US Geological Survey
Review Board, This Website


Rhea Esposito

Cary Institute of Ecosystem Studies


Alec Camp

University of Colorado


Paul Bliznik

University of Colorado


Leanna Jo Clarkson

University of Colorado


Tanya Hannis

University of Colorado


This project was first entered on 27 November, 2017 by Sarah Spaulding