A5101860326- Geology and Paleoclimatology Research
- Isotope Analysis in Ecology
- Methane Hydrates and Related Phenomena
- Geological Studies and Exploration
- Marine animal studies overview
- Pleistocene-Era Hominins and Archaeology
- Marine and fisheries research
- Geological formations and processes
- Marine and environmental studies
- Wildlife Ecology and Conservation
- Avian ecology and behavior
- Cryospheric studies and observations
- Marine and coastal ecosystems
- Aquatic Invertebrate Ecology and Behavior
- Hydrocarbon exploration and reservoir analysis
- Coral and Marine Ecosystems Studies
- Species Distribution and Climate Change
- Fish Ecology and Management Studies
- Pacific and Southeast Asian Studies
- Animal Ecology and Behavior Studies
- Microplastics and Plastic Pollution
- Iron and Steelmaking Processes
- Marine Bivalve and Aquaculture Studies
- Thermochemical Biomass Conversion Processes
- Chemical Looping and Thermochemical Processes
University of St Andrews
2002-2019
Andrews University
2017
University of the Western Cape
2016
Scottish Association For Marine Science
2014
Akvaplan-niva
2012-2014
UiT The Arctic University of Norway
2009-2012
Natural Resources Canada
1991
Abstract Rhyolitic tephra with the geochemical characteristics of North Atlantic Ash Zone (NAAZ) II are described from giant piston core MD95‐2006 northeast Ocean. Shard size distribution indicates that represent a wind‐sorted, primary air‐fall deposit, but mode close to 200 μm they too coarse be deposits at site, which lies ca. 1000 km possible source. Randomly sampled shards reveal single population belonging Icelandic transitional alkali magma series, suggesting unlikely ice rafted debris...
The western and northern S valbard continental margins ( E uropean A rctic) are environmentally sensitive areas that dependent on the northward flow of tlantic W ater, largest heat source rctic O cean. Two marine sediment records from shelf: K ongsfjorden T rough H inlopen rough, were analysed with regard to benthic foraminiferal content lithology assess palaeoceanographic evolution during past two millennia decadal multi‐decadal temporal resolution. In both records, an overall gradual...
Abstract Harbour seal populations have declined over the last 20 years in some regions around Britain. Causes are unknown but could include a reduction prey availability which may potentially be influenced by competition with grey seals. The diets of these two marine predators overlap considerably, indicating that there for prey. In this study, harbour and seals 2010/2012 were compared regionally seasonally relation to: (a) regional variation population trends Britain; (b) previous...
A sensitive and reagentless electrochemical aptatoxisensor was developed on cobalt (II) salicylaldiimine metallodendrimer (SDD–Co(II)) doped with electro-synthesized silver nanoparticles (AgNPs) for microcystin-LR (L, l-leucine; R, l-arginine), or MC-LR, detection in the nanomolar range. The GCE|SDD–Co(II)|AgNPs fabricated 5’ thiolated aptamer through self-assembly modified surface of glassy carbon electrode (GCE) electronic response measured using cyclic voltammetry (CV). Specific binding...
The growth, maximum lateral extent and deglaciation of the last British Ice Sheet (BIS) has been reconstructed using sediment, faunal stable isotope methods from a sedimentary record recovered Barra Fan, north-west Scotland. During phase ice sheet expansion postdating early “warmth” Marine Isotope Stage 3 (MIS 3), rafting events, operating with cyclicity approximately 1500 years, are interspersed between warm, carbonate-rich interstadials strong Dansgaard-Oeschger (D-O) cyclicity. data...
A high-resolution sedimentary record from the subarctic Malangen fjord in northern Norway, northeastern North Atlantic has been investigated order to reconstruct variations influx of Water for last 2000 years. The provides a regional oceanographic climatic signal reflecting changes heat flux at this latitude because its deep sill and relatively narrow adjoining continental shelf. reconstructions are based on oxygen carbon isotopic studies benthic foraminifera high accumulation basin fjord,...
Instrumental monitoring of the climate at high northern latitudes has documented ongoing warming last few decades. Climate modelling also demonstrated that global signal will be amplified in polar region. Such temperature increases would have important implications on ecosystem and biota Barents Sea. This study therefore aims to reconstruct climatic changes Sea based benthic foraminifera over approximately 1400 years decadal sub-decadal scale. Oxygen carbon isotope analysis foraminiferal...
Abstract Sediment colour, together with other proxy data, provides a novel, rapid and non-destructive tool in the investigation of glacier-influenced sedimentation on Barra Fan, NW Scotland. Lightness ( L *) reflectance (400–700 nm) measurements at this site provide quantitative estimate changes calcium carbonate clay content. Interstadials are carbonate-rich/clay-poor (higher * reflectivity), whereas stadials carbonate-poor/clay-rich (lower reflectivity). Detailed sedimentological...
Fine‐scale temporal patterning in grunt production and variation attributes Atlantic cod Gadus morhua pollack Pollachius pollachius was examined. produced only a single sound type, the grunt, similar to that previously described for G. . Sound egg were correlated P. but not Only displayed strongly cyclical pattern, producing more grunts at night. Finer‐scale observed both species which significantly fewer following period of high production. These quieter periods lasted up 45 min 1 h Grunts...
Abstract Diet composition in pinnipeds is widely estimated using hard prey remains recovered from feces. To estimate the size and number of represented fecal samples accurately, digestion correction factors ( DCF s) must be applied to measurements counts fish otoliths cephalopod beaks. In this study, 101 whole feeding trials were conducted with six harbor seals Phoca vitulina ) 18 species. We derived species‐ grade‐specific estimates coefficients DC species‐specific recovery rates RR account...
Abstract We present a decision framework to identify when detailed population‐level assessments are required understand the potential impacts of disturbance‐inducing activity on marine mammal population and discuss how can be applied other taxa. Species at high risk effects identified using information number individuals that likely disturbed by activity, total size, probability repeated disturbance, species' reproductive strategy, life stages (e.g., feeding, pregnant, lactating) most...
The growth, maximum lateral extent and deglaciation of the last British Ice Sheet (BIS) has been reconstructed using sediment, faunal stable isotope methods from a sedimentary record recovered Barra Fan, north-west Scotland. During phase ice sheet expansion postdating early "warmth" Marine Isotope Stage 3 (MIS 3), rafting events, operating with cyclicity approximately 1500 years, are interspersed between warm, carbonate-rich interstadials strong Dansgaard-Oeschger (D-O) cyclicity. data...