Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Faecal pellets"”.
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The production of biogenic gases in the marine environment
… sloppy feeding, DMS production and excretion of faecal pellets as sinks for algal-DMSP was calculated.<br/>In comparison to the ambient marine environment, both algal cells and copepod faecal pellets were identified as micro-habitats of elevated DMSP and DMSO concentrations. Millimolar …
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Deep ocean clay crusts: behaviour and biological origin
… comprises a mixture of burrowing invertebrate faecal pellets and clay. Pellets are found to represent 20% to over 55% of the crust material by dry mass. Individual pellets are shown to exhibit unconfined compressive strengths of between 5kPa and 50kPa, thus demonstrating their strength and …
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The conservation ecology of the European nightjar (Caprimulgus europaeus) in a complex heathland-plantation landscape.
… than prey abundance. Dissection of nightjar faecal pellets demonstrated that moths and beetles were key components of the diet and that variation in diet during the breeding season may be due to changes in resource abundance and varying chick requirements. Comparison of the diets of birds …
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Detection of Mouse Hepatitis Virus
… to detect MHV in naturally infected mice using faecal samples. PCR is a highly sensitive test that can detect few copies of virus in a given sample. The PCR was also used to detect the length of time MHV was shedding in C57BL6/J mice.<br/>A number of problems with cross-contamination were …
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Particulate fluxes in the subtropical convergence region and other marine environments of New Zealand
… as intact marine aggregates or mesozooplankton faecal pellets. The low concentrations of phaeopigments, normally attributed to zooplankton grazing or algal senescence, suggest that organic material has not been degraded in the upper ocean prior to sinking. This observation is perhaps …
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The influence of a petrochemical discharge on the bioturbation and erosion potential of an intertidal estuarine mudflat (Humber estuary, UK)
… activity, locomotion, the production of faecal pellets and biological secretions (bioturbation) have important implications for sediment structure, chemistry, transport characteristics and the flux of nutrients and contaminants. Although spatial and temporal patterns in bioturbation have …
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Dispersal and remineralisation of biodeposits: Ecosystem impacts of mussel aquaculture
… showed that the maximum initial dispersal of faecal pellets from the mussel farm is approximately 300 m and that pellets can be transported several times this distance via resuspension. The remineralisation model was able to simulate the increased nitrogen fluxes from the sediments well and …