A5019455651- Marine and coastal ecosystems
- Scientific Research and Discoveries
- Oceanographic and Atmospheric Processes
- Ocean Acidification Effects and Responses
- Marine Biology and Ecology Research
- Marine and coastal plant biology
- Coastal wetland ecosystem dynamics
- Isotope Analysis in Ecology
- Oil Spill Detection and Mitigation
- Marine and fisheries research
- Microbial Community Ecology and Physiology
- Quantum chaos and dynamical systems
- Atmospheric and Environmental Gas Dynamics
- Methane Hydrates and Related Phenomena
- Geophysics and Gravity Measurements
- Coagulation and Flocculation Studies
- Cosmology and Gravitation Theories
- Computational Physics and Python Applications
- Black Holes and Theoretical Physics
- Soil Geostatistics and Mapping
- Geophysical and Geoelectrical Methods
- Geology and Paleoclimatology Research
- Diverse Scientific and Engineering Research
- Water Quality and Resources Studies
- Water Quality Monitoring and Analysis
University of Georgia
2014-2023
University of California, Santa Barbara
2022
Lamont-Doherty Earth Observatory
2009
Columbia University
2009
Texas A&M University
1998-2004
Mitchell Institute
2001
Dalhousie University
1994
Washington University in St. Louis
1993
Queen Mary University of London
1991
University of Sussex
1987
Ocean ecosystems play a critical role in the Earth's carbon cycle and quantification of their impacts for both present conditions predictions into future remains one greatest challenges oceanography. The goal EXport Processes from Remote Sensing (EXPORTS) Science Plan is to develop predictive understanding export fate global ocean net primary production (NPP) its implications climates. achievement this requires mechanisms that control euphotic zone as well underlying "twilight zone" where...
Abstract Fishes are the dominant vertebrates in ocean, yet we know little of their contribution to carbon export flux at regional global scales. We synthesize existing information on fish‐based coastal and pelagic waters, identify gaps challenges measuring this approaches address them, recommend research priorities. Based our synthesis passive (fecal pellet sinking) active (migratory) fishes, estimated that fishes contribute an average (± standard deviation) about 16.1% 13%) total out...
Marine ecosystem models have advanced to incorporate metabolic pathways discovered with genomic sequencing, but direct comparisons between and "omics" data are lacking. We developed a model that directly simulates metagenomes metatranscriptomes for comparison observations. Model microbes were randomly assigned genes specialized functions, communities of 68 species simulated in the Atlantic Ocean. Unfit organisms replaced, self-organized develop community genomes transcriptomes. Emergent from...
Optical particle measurements are emerging as an important technique for understanding the ocean carbon cycle, including contributions to estimates of their downward flux, which sequesters CO2 in deep sea. instruments can be used from ships or installed on autonomous platforms, delivering much greater spatial and temporal coverage particles mesopelagic zone than traditional techniques, such sediment traps. Technologies image have advanced greatly over last two decades, but quantitative...
The spatial distribution of chemical elements in the ocean is controlled by particles (including organisms); aggregation controls particle properties. Coagulation an important mechanism for controlling size marine and thereby their transport theory has provided a framework calculation rates distributions. use fractal scaling to relate aggregate length mass been development that still needs be fully incorporated into mathematical expressions collision rates. In addition, disaggregation...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 163:63-76 (1998) - doi:10.3354/meps163063 Seasonal size spectra of transparent exopolymeric particles (TEP) in a coastal sea and comparison with those predicted using coagulation theory Xavier Mari1,*, Adrian Burd2 1Danish Institute for Fisheries Research, Department Coastal Ecology, Kavalergården 6, DK-2920...
The goal of the EXport Processes in Ocean from RemoTe Sensing (EXPORTS) field campaign is to develop a predictive understanding export, fate, and carbon cycle impacts global ocean net primary production. To accomplish this goal, observations export flux pathways, plankton community composition, food web processes, optical, physical, biogeochemical (BGC) properties are needed over range ecosystem states. Here we introduce first EXPORTS deployment Station Papa Northeast Pacific during summer...
abstract Coastal ecosystems play a disproportionately large role in society, and climate change is altering their ecological structure function, as well highly valued goods services. In the present article, we review results from decade-scale research on coastal shaped by foundation species (e.g., coral reefs, kelp forests, marshes, seagrass meadows, mangrove barrier islands) to show how attributes We demonstrate value of site-based, long-term studies for quantifying resilience systems...
Abstract Natural or spilled oil in the ocean can interact with marine snow and sediment from riverine sources form Marine Oil Snow (MOS) aggregates including consisting of phytoplankton, detritus, feces. Such have a fractal structure transport surface layers to greater depths ocean, eventually settling on seafloor. In recent studies Deepwater Horizon IXTOC‐1 spills Gulf Mexico, this process was identified as one main mechanisms for transporting vertically water column. We adapted stochastic,...
[1] Particle aggregation plays an important role in many marine biogeochemical processes such as determining the vertical flux of particulate material and trace metal scavenging. Models particle vary complexity this paper I compare behavior a detailed size spectrum model with that series simple, two class models different representations aggregation, all which have appeared literature. The simplest uses first-order representation kinetics, while other nonlinear aggregation. is unable to...
The ocean's biological pump, a critical component of the Earth's carbon cycle, transports organic matter from surface ocean to depth, which is dominated by sinking particles, often in form large (>1 mm) marine snow aggregates. Controls on export are thought be driven solely ecological processes that produce and repackage particles. Here, we present observations illustrating important roles storm-generated turbulence has abundance, characteristics fluxes Turbulence creates destroys...