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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
321

Light and nutrients differentially regulate energy transfer through experimental benthic and pelagic food chains

Rowland, Freya E. 28 April 2010 (has links)
No description available.
322

An improved benthic survey method for coral composition and distribution: Habitat Reef, Curaçao

Sams, Erin E. 12 December 2012 (has links)
No description available.
323

Defining Benthic Organism Exposure: Bioavailability and Effects of Non-Polar Organics

Greenberg, Marc Samuel January 2002 (has links)
No description available.
324

Spatial structuring of benthic invertebrate communities within and among wooded headwater stream networks

Wright, Sara E. January 2011 (has links)
No description available.
325

Whole-Lake Primary Production Calculator

Leong, Colin D. January 2015 (has links)
No description available.
326

The Effects of Acid Mine Drainage on the Community Composition and Diversity of Benthic Macroinvertebrates at a Regional Scale

Alexander, Christopher E. 25 September 2008 (has links)
No description available.
327

Deep-water foraminifera of the Kerguelen Plateau: responses to climate in the late Neogene

Johnson, Katherine 24 June 2008 (has links)
No description available.
328

Investigation of Microcystis Cell Density and Phosphorus in Benthic Sediment and Their Effect on Cyanobacterial Blooms on Western Lake Erie in the Summer of 2009

Lange, Erik David 09 September 2010 (has links)
No description available.
329

Nutrient contributions from <i>Dreissena</i> spp. to <i>Lyngbya wollei</i> and <i>Cladophora glomerata</i>

Armenio, Patricia 17 May 2011 (has links)
No description available.
330

Sambandet mellan flodpärlmusslans och bottenfaunans förekomst / The relationship between the freshwater pearl mussel and the occurrence of benthic fauna

HOLMERTZ, SARAH CAROLINA January 2021 (has links)
Unionida musslor (stormusslor) är en djurgrupp som kan ha positiv påverkan på ekosystemfunktioner i vattendrag och ökar den biologiska mångfalden. Musslorna absorberar föda genom filtrering av vattenmassor, vilket genererar en bättre vattenkvalitet och ger mat till andra bottendjur. Syftet med denna studie var att undersöka en av våra svenska stormusslor flodpärlmusslan (Margaritifera margaritifera), och om det fanns något samband mellan musselbankar och bottenfauna. Provtagning av bottenfauna skedde i Vasslabäcken, Örebro län. 54 prover togs totalt och 27 av dem togs vid musselbankar medan resterande 27 var kontroll utanför musselbankar. Studien visade ingen signifikant skillnad i den totala bottenfaunans täthet i musselbankar jämfört med kontrollområden utanför musselbankar. Däremot fanns en signifikant högre täthet av nattsländor i kontrollerna än i musselbankarna, medan det inte fanns några skillnader i täthet mellan kontroller och musselbankar för några andra djurordningar. Det fanns även fler ordningar utanför musselbankar än i musselbankar, men antalet individer var så få att inga långtgående slutsatser kan dras. För att vidare undersöka musslors påverkan på flora och fauna kan man undersöka fler år och säsonger under året, samt använda sig av en mer experimentell design. / Unionidea mussels (large mussels) are a group of animals that can have a positive impact on ecosystem functions in watercourses and increase biodiversity. The mussels absorb food by filtering water masses, which generates a better water quality and provides food for other benthic animals. The purpose of this study was to investigate one of our swedish large mussels the freshwater pearl mussel (Margaritifera margaritifera), and whether there was any connection between musselbanks and benthic fauna. Sampling of benthic fauna took place in Vasslabäcken, Örebro region. A total of 54 samples were taken and 27 of them were taken at musselbanks while the remaining 27 were controls outside musselbanks. The study showed no significant difference in the density of the total benthic fauna in musselbanks compared with control areas outside musselbanks. On the other hand, there was a significantly higher density of moths in the controls than in the musselbanks, while there were no differences in density between controls and musselbanks for any other animal orders. There were also more schemes outside musselbanks than in musselbanks, but the number of individuals was so small that no far-reaching conclusions can be drawn. To further investigate the impact of mussels on flora and fauna, you can investigate more years and seasons during the year, and use a more experimental design.

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