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国际藻类期刊
SJR: 0.229 SNIP: 0.261 CiteScore™: 0.24

ISSN 打印: 1521-9429
ISSN 在线: 1940-4328

国际藻类期刊

DOI: 10.1615/InterJAlgae.v15.i1.50
pages 65-76

Algal Extremophile Community Persistence from Hot Springs National Park (Arkansas, U.S.A.)

Th. E. Smith
Ave Maria University, Ave Maria, FL 31142, USA
K.M. Manoylov
Department of Biological and Environmental Sciences, Georgia College and State University, Milledgeville, GA 31061
A. Packard
Department of Biology, St. Joseph College of Maine, Standish, ME 04084-5263

ABSTRACT

Algae have been observed in many different extreme environments especially in thermal springs. On June 16th, 2006, we conducted an algal taxonomic survey from Hot Springs National Park, Hot Springs, Arkansas. We sampled algal mats and plankton at 2 different springs and 3 fountains near the Visitor Center along Bathhouse row. The spring's temperatures ranged from 38 to 57 °C and higher temperatures were correlated (ρ < 0.05) to lower species numbers observed at the sampling sites. We identified 45 algal species with Cyanoprokaryotes (cyanobacteria) having 29 species (64.4% of the total) and diatoms had 16 species (45.6% of the total). The algal mat biomass was dominated by Anabeana variablilis (80%) and Hapalosiphon major (10%). Diatoms were only observed in two springs at lower temperature sites (< 40 °C) and epiphytically on mosses.


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