Responses of Continuous-Series Estuarine Microecosystems to Point-Source Input Variations

Simple item page
dc.acquisition-srcDownloaded from-Water Resources Abstractsen_US
dc.call-noen_US
dc.contract-noen_US
dc.contributor.authorCOOPER DCen_US
dc.contributor.authorCOPELAND BJen_US
dc.contributor.otherEcol Monogr 43(2) p 213-236, 1973en_US
dc.date.accessioned2010-02-15T17:15:16Z
dc.date.available2010-02-15T17:15:16Z
dc.date.issued1973en_US
dc.degreeen_US
dc.description1973-en_US
dc.description-otheren_US
dc.description.abstractSix continuous-series microecosystems, each containing 5 cells, were constructed to simulate hydrological factors of estuarine regions. Exchange and retention characteristics were adjusted to closely model the hydrological conditions of Trinity Bay, Texas. The metabolic and structural responses of the microecosystem communities to quantitative and qualitative changes in freshwater input were investigated. Primary production and community respiration in the 1st 3 cells of the microecosystems were dependent on both quantity and quality of freshwater input, whereas primary production and community respiration in the saltwater portions (cells 4, 5) of the microecosystems were virtually independent of the quantity and quality of freshwater input. Metabolism of the freshwater portions of the microecosystems was heterotrophic under normal flow conditions and autotrophic under drought conditions. Addition of an industrial effluent to the freshwater inputs resulted in extensive shifts towards metabolic heterotrophy of the more freshwater portions of the microecosystems. Metabolism of the saltwater cells was heterotrophic under all conditions of freshwater input. The upstream communities were adapted to a dependency on allochthonous materials input for production and respiration maintenance. Retarding freshwater input resulted in tying up larger portions of the nutrient pool within the systems in living components. Addition of industrial effluent increased the community maintenance requirements. Retarding freshwater input acted as an environmental stress on the 1st 3 cells of the microecosystems. Magnitudes of production and respiration were significantly lower, and zooplankton standing crops and species diversity decreased significantly. Addition of industrial effluent produced similar effects. Decreased freshwater input rate (primary stress) rendered the receiving communities more susceptible to the industrial effluent addition (secondary stress). The organismal composition of the microecosystems was qualitatively similar but quantitatively dissimilar to the organismal composition of Trinity Bay. Because of fundamental similarities in all living systems, the observed responses might be especially representative of those which would occur in Trinity Bay if subjected to similar hydrological alterations.--Copyright 1974, Biological Abstracts, Incen_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/23189
dc.latitudeen_US
dc.locationen_US
dc.longitudeen_US
dc.notesen_US
dc.placeen_US
dc.publisheren_US
dc.relation.ispartofseries50760.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectBAYen_US
dc.subjectChlorophytaen_US
dc.subjectChrysophytaen_US
dc.subjectCladoceraen_US
dc.subjectCopepodaen_US
dc.subjectCYANOPHYTAen_US
dc.subjectDIVERSITYen_US
dc.subjectEcosystemsen_US
dc.subjectEffectsen_US
dc.subjecteffluentsen_US
dc.subjectEnvironmental Effectsen_US
dc.subjectEstuarine environmenten_US
dc.subjectEuglenophytaen_US
dc.subjectFLOWen_US
dc.subjectFRESHWATERen_US
dc.subjectIndustrial wastesen_US
dc.subjectMicroorganismsen_US
dc.subjectNematodaen_US
dc.subjectOstracodaen_US
dc.subjectPolychaetaen_US
dc.subjectPrimary productivityen_US
dc.subjectProtozoaen_US
dc.subjectREGIONSen_US
dc.subjectRespirationen_US
dc.subjectRotifersen_US
dc.subjectSPECIESen_US
dc.subjectStanding cropsen_US
dc.subjectSW 0890 Estuariesen_US
dc.subjectSW 3020 Sources and fate of pollutionen_US
dc.subjectSW 3030 Effects of pollutionen_US
dc.subjectTexasen_US
dc.subjectWater pollution sourcesen_US
dc.subjectZOOPLANKTONen_US
dc.titleResponses of Continuous-Series Estuarine Microecosystems to Point-Source Input Variationsen_US
dc.typeJournalen_US
dc.universityen_US
dc.vol-issue()en_US

Files

Collections

Galveston Bay Bibliography
GBIC Abstracts (full text not available through Jack K. Williams Library)