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The Effects of Pulp and Paper Mill Wastewaters on Phytoplankton Primary Productivity in the Red River, Louisiana

Responses of phytoplankton productivity in the Red River to unbleached pulp and paper mill wastewaters were monitored using in situ ^14C incubation. Preoperational studies, conducted prior to the discharge of mill wastewaters varied seasonally, but revealed similar productivity trends when compared with postoperational studies, conducted after mill discharges began entering the Red River. Carbon assimilation rates measured downstream of mill discharge were generally greater than upstream levels in both preoperational and postoperational studies. Selected physical, chemical, and biological parameters varied seasonally, but showed similar upstream-downstream values and preoperational-postoperational values. Total Organic Carbon (TOC), Dissolved Organic Carbon (DOC), and Biochemical Oxygen Demand (BOD_5) were positively correlated with postoperational productivity rates. Apparent color was negatively correlated with productivity rates.

Identiferoai:union.ndltd.org:unt.edu/info:ark/67531/metadc503963
Date05 1900
CreatorsHoller, Jeffrey Dee
ContributorsDickson, Kenneth L., Rodgers, John H., Jr., Beitinger, Thomas L.
PublisherNorth Texas State University
Source SetsUniversity of North Texas
LanguageEnglish
Detected LanguageEnglish
TypeThesis or Dissertation
Formatviii, 108 leaves : maps, Text
CoverageUnited States - Louisiana
RightsPublic, Holler, Jeffrey Dee, Copyright, Copyright is held by the author, unless otherwise noted. All rights reserved.

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