A5080562579- Marine and fisheries research
- Marine and coastal ecosystems
- Marine Bivalve and Aquaculture Studies
- Fish Ecology and Management Studies
- Oceanographic and Atmospheric Processes
- Marine Biology and Ecology Research
- Isotope Analysis in Ecology
- Coastal and Marine Management
- Ocean Acidification Effects and Responses
- Marine animal studies overview
- Coral and Marine Ecosystems Studies
- Fish Biology and Ecology Studies
- Arctic and Antarctic ice dynamics
- Avian ecology and behavior
- Renaissance Literature and Culture
- Soil and Water Nutrient Dynamics
- Underwater Acoustics Research
- Parallel Computing and Optimization Techniques
- Plant Virus Research Studies
- Embedded Systems Design Techniques
- Water Quality Monitoring and Analysis
- Bacteriophages and microbial interactions
- Climate variability and models
- Tropical and Extratropical Cyclones Research
- Evolution and Genetic Dynamics
University of Strathclyde
2015-2024
Korea Environmental Policy and Administration Society
2020
Helmholtz-Zentrum Hereon
2020
University of St Andrews
2020
University of Manchester
2018
Marine Scotland
2001-2016
West Heath Hospital
2011
Google (United States)
2011
National Institute for Health and Care Excellence
2010
Memorial University of Newfoundland
2004
In the face of increasing anthropogenic pressures acting on Earth system, urgent actions are needed to guarantee efficient resource management and sustainable development for our growing human population. Our oceans - largest underexplored component system potentially home a large number new resources, which can directly impact upon food security wellbeing humanity. However, extraction these resources has repercussions biodiversity ability sequester green house gases thereby climate. search...
Significance Every autumn across the North Atlantic, large numbers of zooplankton copepods migrate from surface waters into ocean's interior to hibernate at depths 600–1,400 m. Through this migration, they actively transport lipid carbon below permanent thermocline, where it is metabolized a rate comparable delivered by sinking detritus. This “lipid pump” has not been included in previous estimates deep-ocean sequestration, which are based on either measurements fluxes detritus, or new...
Here we present a new, pan-Atlantic compilation and analysis of data on Calanus finmarchicus abundance, demography, dormancy, egg production mortality in relation to basin-scale patterns temperature, phytoplankton biomass, circulation other environmental characteristics the context understanding factors determining distribution abundance C. across its North Atlantic habitat. A number themes emerge: (1) south-to-north transport plankton northeast contrasts with north-to-south western...
Abstract North Sea environmental and biological data were analysed to examine 30-year changes in production consumption the fish foodweb. The analysis revealed that demand for secondary placed on ecosystem by declined from approximately 20 g C m−2 y−1 1970s 16 1990s. Over same period, proportion of provided zooplankton increased around 70% 75%. overall decrease was mainly due a reduction piscivorous demersal fish. Average omnivorous estimated be 35 y−1, annual fluctuations positively...
Abstract Climate fluctuations and human exploitation are causing global changes in nutrient enrichment of terrestrial aquatic ecosystems declining abundances apex predators. The resulting trophic cascades have had profound effects on food webs, leading to significant economic societal consequences. However, the strength cascades–that is extent which a disturbance diminished as it propagates through web–varies widely between ecosystems, there no formal theory why this should be so. Some chain...
Abstract Discarding by fisheries is perceived as contrary to responsible harvesting. Legislation seeking end the practice being introduced in many jurisdictions. However, discarded fish are food for a range of scavenging species; so, ending discarding may have ecological consequences. Here we investigate sensitivity effects policies using an ecosystem model North Sea—a region where 30–40% trawled catch currently discarded. We show that landing entire while fishing usual has conservation...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 298:157-167 (2005) - doi:10.3354/meps298157 Evidence for impacts by jellyfish on North Sea herring recruitment Christopher P. Lynam1,*, Michael R. Heath2, Stephen J. Hay2, Andrew S. Brierley1 1Gatty Laboratory, University of St. Andrews, Fife KY16 8LB, UK2Marine PO Box 101, Victoria Road, Aberdeen AB11 9DB,...
Abstract Data from plankton net and Optical Plankton Counter sampling during 12 winter cruises between 1994 2002 have been used to derive a multi-annual composite 3-D distribution of the abundance over-wintering Calanus finmarchicus in swath across North Atlantic Labrador Norway. Dense concentrations occurred Sea, northern Irminger Basin, Iceland eastern Norwegian Faroe–Shetland Channel, Trench Sea. A model buoyancy regulation C. was lipid content implied by situ temperature salinity at...
ABSTRACT Recent and projected future changes in the temperature chemistry of marine waters around UK Ireland are having, will have, effects on phenology, productivity distribution fish shellfish. However, overall consequences still hard to predict because behaviour, genetic adaptation, habitat dependency impacts fishing species, result complex species' responses that may be only partially explained by simple climate envelope predictions. There is a broad body evidence climatic fluctuations...
Abstract Data from 40 published studies of the diet composition larval and juvenile cod ( Gadus morhua ) around northern North Atlantic were summarized to assess generic patterns in ontogenetic regional variability key prey. The results showed that larvae at edge latitudinal range depend primarily on development stages copepod Calanus finmarchicus , whilst those southern Para‐ Pseudocalanus species. Juvenile preyed a wider taxa than larvae, but euphausiids main target Analysis variations...
Abstract. Seabed sediment mapping is important for a wide range of marine policy, planning and scientific issues, there has been considerable national international investment around the world in collation synthesis datasets. However, Europe at least, much this effort directed towards seabed classification discrete habitats. Scientific users often have to resort reverse engineering these classifications recover continuous variables, such as mud content median grain size, that are required...
Abstract When making predictions about ecosystems, we often have available a number of different ecosystem models that attempt to represent their dynamics in detailed mechanistic way. Each these can be used as simulator large‐scale experiments and make projections the fate ecosystems under scenarios support development appropriate management strategies. However, structural differences, systematic discrepancies uncertainties lead giving predictions. This is further complicated by fact may not...
Probabilistic maturation reaction norms (PMRNs) were used to investigate the schedules of cod, haddock and whiting in Firth Clyde determine if typical lengths at have changed significantly since 1986. Some potential sources growth-independent plasticity accounted for by including sea-surface temperature abundance variables analysis. The PMRNs populations compared with those from wider west coast, conjunction regional differences fishery, assess whether fishing may been driving observed...
The population of Calanus finmarchicus in the North Sea is replenished each spring by invasion from an overwintering stock located beyond shelf edge. A combination field observations, statistical analysis Continuous Plankton Recorder (CPR) data, and particle tracking model simulations, was used to investigate processes involved cross‐shelf invasion. results showed that main source animals entering at depths greater than 600 m Faroe–Shetland Channel, where concentrations up 620 −3 are found...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 313:173-192 (2006) - doi:10.3354/meps313173 Ocean-scale modelling of distribution, abundance, and seasonal dynamics copepod Calanus finmarchicus Douglas C. Speirs1,*, William S. Gurney1,2, Michael R. Heath2, Werner Horbelt3, Simon N. Wood3, Beverly A. de Cuevas4 1Department Statistics Modelling Science,...
Vertical distributions of 3 size groups herring larvae Clupea harengus L. in isothermal and stratified waters off the north coast Scotland were recorded by repetitive sampling, adjacent to dnfting markers, with an opening closing high-speed plankton net.Concurrent measurements light intensity at sea surface, wind velocity water column hydrography related time series analysis.Results indicate that range 6 18 mm aggregated form a layered distribution during day but dispersed night.However,...
Declining body sizes are prevalent in marine fish. While these declines have been suggested to be a response increasing temperatures, the evidence is mixed and underlying causes of observed often unknown. Here, we explore drivers spatio-temporal patterns size lesser sandeel (Ammodytes marinus), an important prey for seabirds mammals, focusing on ongoing North Sea. We combine experimental field data with ecological theory develop biologically realistic dynamic energy budget model that...
The ratio of light absorption at 480 and 665 nm by 90% acetone extracts marine phytoplankton pigments has been examined as a potential indicator nutritional status in both laboratory field studies. studies demonstrated clear relationship between (carbon/nitrogen ratio) the that was independent temperature climate. for nutrient-replete cells shown to vary taxonomic groups. However, inter-specific variation less than differences observed nutrient-depleted cells. data suggest may be useful...