A5069189206- Marine and coastal ecosystems
- Microbial Community Ecology and Physiology
- Oil Spill Detection and Mitigation
- Marine and Offshore Engineering Studies
- Marine Biology and Ecology Research
- Maritime and Coastal Archaeology
- International Maritime Law Issues
- Protist diversity and phylogeny
- Isotope Analysis in Ecology
- Toxic Organic Pollutants Impact
- Law, logistics, and international trade
- Microbial bioremediation and biosurfactants
- Methane Hydrates and Related Phenomena
- Maritime Security and History
- Oceanographic and Atmospheric Processes
- Ocean Acidification Effects and Responses
- Metabolomics and Mass Spectrometry Studies
- Atmospheric chemistry and aerosols
Defence Equipment and Support
2022-2024
Ministry of Defence
2022-2024
University of Bristol
2023
National Oceanography Centre
2008-2015
University of Southampton
2008-2011
Prochlorococcus is responsible for a significant part of CO 2 fixation in the ocean. Although it was long considered an autotrophic cyanobacterium, uptake organic compounds has been reported, assuming they were sources limited biogenic elements. We have shown laboratory experiments that can take up glucose. However, mechanisms glucose and its occurrence ocean not shown. Here, we report gene Pro1404 confers capability marinus SS120. used cyanobacterium unable to engineer strains express gene....
The metabolic responses of indigenous dominant bacterioplankton populations to additions dust were examined in the tropical northeast Atlantic. Subsurface seawater samples treated with dust, added directly or indirectly as a 'leachate' after its rapid dissolution deionized water. Samples incubated at ambient temperature and light for up 24 h microbial assessed by (35)S-methionine ((35)S-Met) uptake. Prochlorococcus low nucleic acid (LNA) cells sorted flow cytometry determine their...
During the winter of 2006 we measured nifH gene abundances, dinitrogen (N2) fixation rates and carbon in eastern tropical sub-tropical North Atlantic Ocean. The dominant diazotrophic phylotypes were filamentous cyanobacteria, which may include Trichodesmium Katagnymene, with up to 106 L−1 copies, unicellular group A cyanobacteria 105 copies gamma proteobacteria 104 copies. N2 low ranged between 0.032–1.28 nmol N d−1 a mean 0.30±0.29 (1σ, n = 65). CO2-fixation rates, representing primary...
Abstract Shipwrecks and dumped munition continue to be a major hazard, both in the North Sea but also on global scale. Research within EU Interreg project Wrecks (NSW), cooperation with German Aerospace Centre, Institute for Protection of Maritime Infrastructures (DLR), is generating new insights into status wrecks, potential leakage pollutants from remaining munitions loads effects contamination exposed marine organisms environment. Further, historical documents are generated archives...
Bacterioplankton are the primary consumers of dissolved organic matter in ocean, thus quantification bacterioplankton production (BP) is essential to our understanding carbon cycling largest ecosystems on Earth. We compared BP, measured as rate 14 C‐leucine or 3 H‐leucine uptake at close saturating concentration (20 nmol L −1 ), with ambient from dilution bioassays. hypothesized that saturation leucine would lead its respiration a source, thereby not truly representing BP. Seawater was...
Abstract The ocean floor is littered with thousands of wrecks containing hazardous fuels, lubes, armaments and cargoes that have polluted, are polluting, or will pollute the marine environment. UK Ministry Defence manages environmental risk associated its ∼5,700 military through Wreck Management Programme. This paper explores methods used to assess wreck Royal Fleet Auxiliary (RFA) tanker RFA War Mehtar , which lies at approximately 39 m depth, 15 nm east Great Yarmouth, United Kingdom....
Ubiquitous SAR11 Alphaproteobacteria numerically dominate marine planktonic communities. Because they are excruciatingly difficult to cultivate, there is comparatively little known about their physiology and metabolic responses long- short-term environmental changes. As surface oceans take up anthropogenic, atmospheric CO2, the consequential process of ocean acidification could affect global biogeochemical significance SAR11. Shipping accidents or inadvertent release chemicals from...
Abstract Millions of tonnes oil lie entombed within wrecks from two world wars which, when released, can cause environmental devastation. Wrecks are predominantly risk assessed by the Global North Nations responsible, resulting in an epistemology that separates human nature. This research aimed to decolonise assessments capture spatially heterogeneous nature vulnerability pollution. Triangulation analysis interviews and official reports relating USS Mississinewa spill identified three South...