Global ETD Search
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Showing 1 to 15 of 15 for “"suspension feeding"”.
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Effects of Particle Surface Properties on Feeding Selectivity in Suspension-Feeding Bivalve Molluscs
… effects of surface properties upon selection by suspension-feeding bivalves were examined. The charge and wettability of several different types of 10-µm spheres were determined. Microspheres with different surface characteristics were fed to oysters (<em>C. viriginica)</em> and mussels (<em>M. …
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The behavior of planktotrophic echinoderm larvae;: mechanisms, regulation, and rates of suspension feeding
Thesis (Ph. D.)--University of Washington.
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Bivalve associations of the Cannonball Formation (Paleocene, Danian) of North Dakota
… abundance of Isognomon, a large, thick-shelled, suspension-feeding bivalve, along with the lack of other macrofossils, suggests an environment where conditions were prohibitive to most organisms. A shallow-water environment associated with a tidal flat is proposed. </p><p> The Glycyrneris-Arctica …
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The feeding ecology of deposit-feeding holothurians
… classes of holothuroidea and reflect the mode of feeding.<br/><br/>Holothurian tentacular structure is used to separate the group at the subclass or order level (Pawson, 1966). Dendritic, tree-like tentacles are used by suspension-feeding holothurians to filter particulate matter from the water; …
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Influence of increased sediment exposure on suspension-feeder assemblages in a temperate seagrass meadow
… of sediment in the water column. As sessile suspension-feeder assemblages play a critical role in marine ecosystems through their active transfers of organic and inorganic between the water column and the seabed (i.e. benthic-pelagic coupling), increased sediment exposure generated by …
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Observations of a particle capture on a cylindrical collector : implications for particle accumulation and removal in aquatic systems
… aquatic processes, such as larval settlement, suspension feeding, and vegetative filtration. The collector Reynolds number (Rec), based on the collector diameter, typically ranges from 1-1000 in aquatic environments. No analytical solutions exist to describe capture efficiency in this range. …
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The sedimentology of the cambrian clastic sediments of Northwest Scotland
… the colonisation of the Cambrian shelf by suspension feeding annelids. The Pipe Rock is an 85-100m thick sequence of mature, highly burrowed quartzarenites considered to have been deposited in a tidal shelf to outer shelf tempestite setting. The Fucoid Beds consists of 20m of a mixed …
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Reproduction and larval biology of North Atlantic asteroids related to the invasion of the deep sea
… plus habits related directly or indirectly with suspension feeding. These species exhibit reproductive features with trends to the opportunistic strategy and are distinctive of unpredictable environments, although their large egg size probably follows the general trend observed in species from …
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Tīmata whakaora, kickstarting recovery - Using bivalves to bioremediate degraded estuarine sediments
… Austrovenus stutchburyi, a surface-dwelling suspension feeding bioturbator, and Macomona liliana, a deep-burrowing porewater-pressuriser, in supporting recovery of estuarine function following disturbance. Two field experiments in Tauranga Harbour, Aotearoa New Zealand were conducted, first a …
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Dispersal and remineralisation of biodeposits: Ecosystem impacts of mussel aquaculture
Suspension-feeding bivalves produce biodeposits (faeces and pseudofaeces) that have much higher sinking velocities than their constituent particles. Consequently they cause sedimentation of material that might otherwise not be deposited. The benthic remineralisation of biodeposits increases …
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Ecological controls on density, diversity and community structure of Polar Megabenthos
… to disturbance were taxa specific (e.g. mobile suspension feeders aggregate on disturbed areas), but the shallow area has higher densities of suspension feeding epifauna. Deeper areas experience small scale disturbance from deposition of drop stones but its relatively low frequency and magnitude …
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Changes in benthic ecosystem properties and functions across sedimentary gradients in estuaries
… macrofaunal grazer abundances and deposit feeding activity were measured across a gradient of sediment mud content to determine relationships between grazers and MPB biomass across transitional sedimentary environments. The density of feeding traces produced by M. Liliana was measured as a …
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The Effects of Benthic Organisms on Intertidal Sediment Erodibility
… and organic material become available to suspension feeders and/or transported to adjacent habitats. On sandflats, the organisms living within sediments have been proven to be key drivers of ecological function, such as benthic-pelagic coupling and biogeochemical cycling. Although benthic …
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Stable Carbon and Nitrogen Isotopes of Shell Bound organic Matter, Implications for Modern and Ancient Food Web Dynamics
… affects the isotopic signature of consumers. Suspension feeding bivalves, which feed on sedimenting particles in the water column provide an ideal system to investigate these changes. In Chapter 1, I use high-resolution sclerochronological data from recent and live bivalve Spisula solidissima, …