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  • 1
    Keywords: Sedimentation ; Watt ; Coast changes ; Coasts ; Estuarine sediments ; Intertidal zonation ; Marine sediments ; Sediment transport ; Sedimentation and deposition
    Description / Table of Contents: LISP-UK Studies --- K. S. Black and D. M. Paterson: LISP-UK Littoral Investigation of Sediment Properties: an introduction / Geological Society, London, Special Publications, 139:1-10, doi:10.1144/GSL.SP.1998.139.01.01 --- K. R. Dyer: The typology of intertidal mudflats / Geological Society, London, Special Publications, 139:11-24, doi:10.1144/GSL.SP.1998.139.01.02 --- Carl L. Amos, M. Brylinsky, T. F. Sutherland, D. O’Brien, S. Lee, and A. Cramp: The stability of a mudflat in the Humber estuary, South Yorkshire, UK / Geological Society, London, Special Publications, 139:25-43, doi:10.1144/GSL.SP.1998.139.01.03 --- M. C. Christie and K. R. Dyer: Measurements of the turbid tidal edge over the Skeffling mudflats / Geological Society, London, Special Publications, 139:45-55, doi:10.1144/GSL.SP.1998.139.01.04 --- D. J. Law and A. J. Bale: In situ characterization of suspended particles using focused-beam, laser reflectance particle sizing / Geological Society, London, Special Publications, 139:57-68, doi:10.1144/GSL.SP.1998.139.01.05 --- Sue L. Brown: Sedimentation on a Humber saltmarsh / Geological Society, London, Special Publications, 139:69-83, doi:10.1144/GSL.SP.1998.139.01.06 --- John Widdows, Mary Brinsley, and Mike Elliott: Use of in situ flume to quantify particle flux (biodeposition rates and sediment erosion) for an intertidal mudflat in relation to changes in current velocity and benthic macrofauna / Geological Society, London, Special Publications, 139:85-97, doi:10.1144/GSL.SP.1998.139.01.07 --- K. H. Wiltshire, T. Tolhurst, D. M. Paterson, I. Davidson, and G. Gust: Pigment fingerprints as markers of erosion and changes in cohesive sediment surface properties in simulated and natural erosion events / Geological Society, London, Special Publications, 139:99-114, doi:10.1144/GSL.SP.1998.139.01.08 --- J. T. Davey and V. A. Partridge: The macrofaunal communities of the Skeffling muds (Humber estuary), with special reference to bioturbation / Geological Society, London, Special Publications, 139:115-124, doi:10.1144/GSL.SP.1998.139.01.09 --- Graham J. C. Underwood and David J. Smith: In situ measurements of exopolymer production by intertidal epipelic diatom-dominated biofilms in the Humber estuary / Geological Society, London, Special Publications, 139:125-134, doi:10.1144/GSL.SP.1998.139.01.10 --- G. Ruddy, C. M. Turley, and T. E. R. Jones: Ecological interaction and sediment transport on an intertidal mudflat I. Evidence for a biologically mediated sediment-water interface / Geological Society, London, Special Publications, 139:135-148, doi:10.1144/GSL.SP.1998.139.01.11 --- G. Ruddy, C. M. Turley, and T. E. R. Jones: Ecological interaction and sediment transport on an intertidal mudflat II. An experimental dynamic model of the sediment-water interface / Geological Society, London, Special Publications, 139:149-166, doi:10.1144/GSL.SP.1998.139.01.12 --- R. G. Wood, K. S. Black, and C. F. Jago: Measurements and preliminary modelling of current velocity over an intertidal mudflat, Humber estuary, UK / Geological Society, London, Special Publications, 139:167-175, doi:10.1144/GSL.SP.1998.139.01.13 --- Generic Studies --- Hugo N. Rodriguez and Ashish J. Mehta: Considerations on wave-induced fluid mud streaming at open coasts / Geological Society, London, Special Publications, 139:177-186, doi:10.1144/GSL.SP.1998.139.01.14 --- W. T. B. Van Der Lee: The impact of fluid shear and the suspended sediment concentration on the mud floc size variation in the Dollard estuary, The Netherlands / Geological Society, London, Special Publications, 139:187-198, doi:10.1144/GSL.SP.1998.139.01.15 --- Ole Mikkelsen and Morten Pejrup: Comparison of flocculated and dispersed suspended sediment in the Dollard estuary / Geological Society, London, Special Publications, 139:199-209, doi:10.1144/GSL.SP.1998.139.01.16 --- R. J. Uncles, J. A. Stephens, and C. Harris: Seasonal variability of subtidal and intertidal sediment distributions in a muddy, macrotidal estuary: the Humber-Ouse, UK / Geological Society, London, Special Publications, 139:211-219, doi:10.1144/GSL.SP.1998.139.01.17 --- N. M. Ryan and J. A. G. Cooper: Spatial variability of tidal flats in response to wave exposure: examples from Strangford Lough, Co. Down, Northern Ireland / Geological Society, London, Special Publications, 139:221-230, doi:10.1144/GSL.SP.1998.139.01.18 --- Bart A. Kornman and Eric M. G. T. De Deckere: Temporal variation in sediment erodibility and suspended sediment dynamics in the Dollard estuary / Geological Society, London, Special Publications, 139:231-241, doi:10.1144/GSL.SP.1998.139.01.19 --- Andrew B. Cundy, Philip E. F. Collins, Simon D. Turner, Ian W. Croudace, and David Horne: 100 years of environmental change in a coastal wetland, Augusta Bay, southeast Sicily: evidence from geochemical and palaeoecological studies / Geological Society, London, Special Publications, 139:243-254, doi:10.1144/GSL.SP.1998.139.01.20 --- Richard J. S. Whitehouse and Helen J. Mitchener: Observations of the morphodynamic behaviour of an intertidal mudflat at different timescales / Geological Society, London, Special Publications, 139:255-271, doi:10.1144/GSL.SP.1998.139.01.21 --- J. Hull and R. Nunny: Mapping intertidal sediment distributions using the RoxAnn System, Dornoch Firth, NE Scotland / Geological Society, London, Special Publications, 139:273-282, doi:10.1144/GSL.SP.1998.139.01.22 --- R. Riethmüller, J. H. M. Hakvoort, M. Heineke, K. Heymann, H. Kühl, and G. Witte: Relating erosion shear stress to tidal flat surface colour / Geological Society, London, Special Publications, 139:283-293, doi:10.1144/GSL.SP.1998.139.01.23 --- T. F. Sutherland, C. L. Amos, and J. Grant: The erosion threshold of biotic sediments: a comparison of methods / Geological Society, London, Special Publications, 139:295-307, doi:10.1144/GSL.SP.1998.139.01.24 --- Masroor A. Shaikh, Azra Meadows, and Peter S. Meadows: Biological control of avalanching and slope stability in the intertidal zone / Geological Society, London, Special Publications, 139:309-329, doi:10.1144/GSL.SP.1998.139.01.25 --- Peter S. Meadows, Azra Meadows, Fraser J. C. West, Peter S. Shand, and Masroor A. Shaikh: Mussels and mussel beds (Mytilus edulis) as stabilizers of sedimentary environments in the intertidal zone / Geological Society, London, Special Publications, 139:331-347, doi:10.1144/GSL.SP.1998.139.01.26 --- Peter S. Meadows, John M. H. Murray, Azra Meadows, David Muir Wood, and Fraser J. C. West: Microscale biogeotechnical differences in intertidal sedimentary ecosystems / Geological Society, London, Special Publications, 139:349-366, doi:10.1144/GSL.SP.1998.139.01.27 --- Azra Meadows, Peter S. Meadows, and Pat McLaughlin: Spatial heterogeneity in an intertidal sedimentary environment and its macrobenthic community / Geological Society, London, Special Publications, 139:367-388, doi:10.1144/GSL.SP.1998.139.01.28 --- L. A. Boorman, A. Garbutt, and D. Barratt: The role of vegetation in determining patterns of the accretion of salt marsh sediment / Geological Society, London, Special Publications, 139:389-399, doi:10.1144/GSL.SP.1998.139.01.29
    Pages: Online-Ressource (IX, 409 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 1862390134
    Language: English
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  • 2
    ISSN: 1573-515X
    Keywords: benthic diatoms ; colloidal carbohydrates ; mud flats ; extracellular polymeric substances ; GC-MS ; EPS
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Geosciences
    Notes: Abstract The extracellular secretions of epipelic diatoms (Bacillariophyceae) are an important source of carbohydrates on intertidal sediments. For analytical purposes, sediment carbohydrates have been operationally separated into colloidal and bulk fractions that are often assumed to be similar in their chemical properties. However, there has been little investigation into the nature of the two fractions. In this study, carbohydrate fractions were sampled in situ, isolated, purified and biochemically characterised using gas chromatography-mass spectrometry (GC-MS). Both carbohydrate fractions were found to contain similar sugars although in different proportions. Glucose represented more than 80% of the monosaccharides identified in the colloidal carbohydrate fraction while only 37% of monosaccharides present in the bulk carbohydrate fraction. Colloidal carbohydrate concentrations showed short-term variability and were correlated with diatom biomass (as chlorophyll a) suggesting the colloidal fraction is labile and may be of recent origin, perhaps representing diatom activity. Concentrations of the bulk carbohydrate fraction did not show significant short-term variation and was therefore more refractory. This combination of biochemical and field data suggested that the bulk and colloidal carbohydrate fractions were chemically and physically different. These findings have relevance to studies of estuarine carbon cycling.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1573-515X
    Keywords: benthic diatoms ; colloidal carbohydrates ; mud flats ; extracellular polymeric substances ; GC-MS ; EPS
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Geosciences
    Notes: Abstract The extracellular secretions of epipelic diatoms (Bacillariophyceae) axe an important source of carbohydrates on intertidal sediments. For analytical purposes, sediment carbohydrates have been operationally separated into colloidal and bulk fractions that are often assumed to be similar in their chemical properties. However, there has been little investigation into the nature of the two fractions. In this study, carbohydrate fractions were sampledin situ, isolated, purified and biochemically characterised using gas chromatography-mass spectrometry (GC-MS). Both carbohydrate fractions were found to contain similar sugars although in different proportions. Glucose represented more than 80% of the monosaccharides identified in the colloidal carbohydrate fraction while only 37% of monosaccharides present in the bulk carbohydrate fraction. Colloidal carbohydrate concentrations showed short-term variability and were correlated with diatom biomass (as chlorophylla) suggesting the colloidal fraction is labile and may be of recent origin, perhaps representing diatom activity. Concentrations of the bulk carbohydrate fraction did not show significant short-term variation and was therefore more refractory. This combination of biochemical and field data suggested that the bulk and colloidal carbohydrate fractions were chemically and physically different. These findings have relevance to studies of estuarine carbon cycling.
    Type of Medium: Electronic Resource
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  • 4
    Publication Date: 2018-02-16
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 5
    Publication Date: 2018-02-16
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
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  • 6
    Publication Date: 2014-04-17
    Description: Compensatory dynamics, overyielding and statistical averaging are mechanisms promoting the temporal stability of natural communities. Using the model of European intertidal rocky shore assemblages and collating 17 datasets, we investigated how the strength of these stability-enhancing mechanisms varies with latitude and how it can be altered by the loss of habitat-formers (e.g. canopy-forming macroalgae). Community stability decreased with increasing latitude, mostly as a consequence of a greater synchronization of species fluctuations. Statistical averaging and overyielding (i.e. richness effects) promoted stability, but their strength did not vary with latitude. The experimental removal of macroalgal canopies caused a strengthening of the statistical averaging effect that was consistent across the latitudinal gradient investigated. Nonetheless, the loss of canopies depressed stability by enhancing the synchronization of species fluctuations on southernmost shores, while it had weak effects on shores at higher latitudes. Variation in life-history traits among canopy-forming species and/or in prevailing environmental conditions across a gradient of latitude could underlie variable effects of habitat-formers on species fluctuations. Our study shows i) that the stability of intertidal assemblages and strength of compensatory dynamics varies with latitude, ii) that canopy-forming macroalgae, exerting a strong control on understorey species, can influence the strength of compensatory dynamics and iii) that biological forcing (i.e. facilitation) can be as important as environmental forcing in enhancing the synchronization of species fluctuations.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 7
    Publication Date: 2015-04-25
    Description: The dimensions and dynamics of subaqueous bedforms are well known for cohesionless sediments. However, the effect of physical cohesion imparted by cohesive clay within mixed sand-mud substrates has not been examined, despite its recognized influence on sediment stability. Here we present a series of controlled laboratory experiments to establish the influence of substrate clay content on subaqueous bedform dynamics within mixtures of sand and clay exposed to unidirectional flow. The results show that bedform dimensions and steepness decrease linearly with clay content, and comparison with existing predictors of bedform dimensions, established within cohesionless sediments, reveals significant over-prediction of bedform size for all but the lowermost clay contents examined. The profound effect substrate clay content has on bedform dimensions has a number of important implications for interpretation in a range of modern and ancient environments, including reduced roughness and bedform heights in estuarine systems and the often cited lack of large dune cross-sets in turbidites. The results therefore offer a step change in our understanding of bedform formation and dynamics in these, and many other, sedimentary environments.
    Print ISSN: 0091-7613
    Electronic ISSN: 1943-2682
    Topics: Geosciences
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  • 8
    Publication Date: 2006-09-26
    Print ISSN: 1386-2588
    Electronic ISSN: 1573-5125
    Topics: Biology
    Published by Springer
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  • 9
    Publication Date: 2011-11-03
    Print ISSN: 0018-8158
    Electronic ISSN: 1573-5117
    Topics: Biology
    Published by Springer
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  • 10
    Publication Date: 2007-07-17
    Print ISSN: 0018-8158
    Electronic ISSN: 1573-5117
    Topics: Biology
    Published by Springer
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