<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Charlton, Shirley E. D.</style></author><author><style face="normal" font="default" size="100%">Hickman, Michael</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Seasonal physical chemical and algal changes in five rivers flowing through the oil sands region of Alberta, Canada</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">AENV</style></keyword><keyword><style  face="normal" font="default" size="100%">aquatic vegetation</style></keyword><keyword><style  face="normal" font="default" size="100%">Athabasca River</style></keyword><keyword><style  face="normal" font="default" size="100%">tributaries</style></keyword><keyword><style  face="normal" font="default" size="100%">UofA</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1984</style></year><pub-dates><date><style  face="normal" font="default" size="100%">01/1984</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">International Review of Hydrology</style></publisher><volume><style face="normal" font="default" size="100%">69</style></volume><pages><style face="normal" font="default" size="100%">35 pages </style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Seasonal studies concentrating upon physical and chemical parameters and the epilithic algal community were conducted at specific sites in five tributary rivers flowing through the oil sands region of northeastern Alberta, Canada into the Athabasca River. Numerically cyanophycean algae (Lyngbya aerugineo-caerulea, Phormidium sp., Calothrix braunii, Nostoc spp. and Anabaena affinis) dominated followed by diatoms (Achnanthes lanceolata, Cocconeis pediculus, Cocconeis placentula, Epithemia sorex, Epithemia turgida, Gomphonema acuminatum, Gomphonema longiceps v. subclavata, Gomphonema olivaceum, Nitzschia fonticola, Nitzschia palea, Synedra rumpens, and Synedra ulna). One exception was the Hangingstone River where chlorophycean algae (Stigeoclonium pachydermum and Cladophora glomerata) were next in importance to the cyanophytes. Seasonal fluctuations in algal species and numbers were influenced by a myriad of interacting parameters. Physically disruptive forces (current velocity and discharge) appeared more important than dissolved nutrients. They were also responsible for affecting the chemical composition of the water itself.</style></abstract><issue><style face="normal" font="default" size="100%">3</style></issue><custom2><style face="normal" font="default" size="100%">Athabasca River </style></custom2><custom3><style face="normal" font="default" size="100%">http://www.worldcat.org/oclc/5155929414</style></custom3><custom4><style face="normal" font="default" size="100%">OSEMB</style></custom4></record></records></xml>