A5069934317- Marine and fisheries research
- Isotope Analysis in Ecology
- Marine and coastal ecosystems
- Marine Biology and Ecology Research
- Marine animal studies overview
- Cephalopods and Marine Biology
- Marine Bivalve and Aquaculture Studies
- Mercury impact and mitigation studies
- Ocean Acidification Effects and Responses
- Fish Ecology and Management Studies
- Oceanographic and Atmospheric Processes
- Environmental Toxicology and Ecotoxicology
- Aquaculture Nutrition and Growth
- Meat and Animal Product Quality
- Ichthyology and Marine Biology
- Physiological and biochemical adaptations
- Food Industry and Aquatic Biology
- Microbial Community Ecology and Physiology
- Arctic and Russian Policy Studies
- Methane Hydrates and Related Phenomena
- Hydrocarbon exploration and reservoir analysis
- Coral and Marine Ecosystems Studies
- Recycling and Waste Management Techniques
- Geology and Paleoclimatology Research
- Microplastics and Plastic Pollution
British Antarctic Survey
2015-2024
Natural Environment Research Council
2006-2021
University of Aberdeen
2001-2009
Centro Oceanográfico de Vigo
2007
Abstract Antarctic krill (Euphausia superba) are a key species in Southern Ocean ecosystems, maintaining very large numbers of predators, and fluctuations their abundance can affect the overall structure functioning ecosystems. The interannual variability biomass was examined using 17-year time-series acoustic observations undertaken Western Core Box (WCB) survey area to northwest South Georgia, Ocean. Krill targets were identified data multifrequency identification window converted density...
This study investigated the distribution of plastic debris from Atlantic portion Sub-Antarctic to Antarctic Peninsula. region is home some highest concentrations zooplankton biomass but also threatened by increasing shipping traffic fishing and growing tourism market. Samples were collected using a surface-towed neuston net during Austral summer 2018, aboard RRS James Clark Ross. Using Fourier Transform Infrared Spectrometry it was found that 45.6% particles isolated seawater samples...
Abstract Antarctic krill play an important role in biogeochemical cycles and can potentially generate high-particulate organic carbon (POC) fluxes to the deep ocean. They also have unusual trait of moulting continuously throughout their life-cycle. We determine seasonal contribution POC flux terms faecal pellets (FP), exuviae carcasses from sediment trap samples collected Southern Ocean. found that generated similar order FP, together accounting for 87% annual (22.8 g m −2 y −1 ). Using...
Abstract. The northern Scotia Sea contains the largest seasonal uptake of atmospheric carbon dioxide yet measured in Southern Ocean. This study examines one main routes by which this fluxes to deep ocean: through production faecal pellets (FPs) zooplankton community. Deep sediment traps were deployed at two sites with contrasting ocean productivity regimes (P3, naturally iron-fertilized, and P2, iron-limited) within same water mass. magnitude pattern particulate organic (POC) FPs was...
The changing Arctic environment is affecting zooplankton that support its abundant wildlife. We examined how these changes are influencing a key species, Calanus finmarchicus, principally found in the North Atlantic but expatriated to Arctic. Close ice-edge Fram Strait, we identified areas that, since 1980s, increasingly favourable C. finmarchicus. Field-sampling revealed part of population there be capable amassing enough reserves overwinter. Early developmental stages were also present...
The ocean's biological carbon pump plays a central role in regulating atmospheric CO2 levels. In particular, the depth at which sinking organic is broken down and respired mesopelagic zone critical, with deeper remineralisation resulting greater storage. Until recently, however, balanced budget of supply consumption had not been constructed any region ocean, processes controlling turnover are still poorly understood. Large-scale data syntheses suggest that wide range factors can influence...
Around 176500 whales were killed in the sub-Antarctic waters off South Georgia (South Atlantic) between 1904 and 1965. In recent decades, have once again become summer visitors, with southern right whale (SRW) most commonly reported species until 2011. Here, we assess distribution, temporal pattern, health status likely prey of SRWs these waters, combining observations from a summertime vessel-based expedition to Georgia, stable isotope data collected putative sightings reports collated by...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 569:173-185 (2017) - DOI: https://doi.org/10.3354/meps12093 Southern Ocean mesopelagic fish communities in Scotia Sea are sustained by mass immigration Ryan A. Saunders1,*, Martin Collins2,3, Gabriele Stowasser1, Geraint Tarling1 1British Antarctic Survey, Natural Environment Research Council, High Cross,...
Abstract The efficiency of deep-ocean CO 2 sequestration is regulated by the relative balance between inorganic and organic carbon export respectively acting through biological pump (BCP) carbonate counter (CCP). composition abundance calcifying species in prevailing oceanic plankton community plays a major role driving CCP. Here we assess these organisms regulating strength CCP Southern Ocean region (northern Scotia Sea) known to be hotspot for drawdown atmospheric . We show that, when...
Zooplankton form an integral component of epi- and mesopelagic ecosystems, there is a need to better understand their role in ocean biogeochemistry. The export remineralisation particulate organic matter at depth plays important controlling atmospheric CO2 concentrations. Pelagic mesozooplankton micronekton communities may influence the fate number ways, including: consumption primary producers this material as fast-sinking faecal pellets, active flux carbon by animals undertaking diel...
Summary Understanding interspecific interactions, and the influences of anthropogenic disturbance environmental change on communities, are key challenges in ecology. Despite pressing need to understand these fundamental drivers community structure dynamics, only 17% ecological studies conducted over past three decades have been at level. Here, we assess trophic procellariiform breeding S outh G eorgia, identify factors that determine foraging niches possible temporal changes. We collected...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 541:45-64 (2015) - DOI: https://doi.org/10.3354/meps11527 Predatory impact of myctophid fish community on zooplankton in Scotia Sea (Southern Ocean) Ryan A. Saunders1,*, Martin Collins2, Peter Ward1, Gabriele Stowasser1, Simeon L. Hill1, Rachael Shreeve1, Geraint Tarling1 1British Antarctic Survey, Natural...