A5064962865- Marine Biology and Ecology Research
- Methane Hydrates and Related Phenomena
- Coral and Marine Ecosystems Studies
- Isotope Analysis in Ecology
- Microbial Community Ecology and Physiology
- Marine and fisheries research
- Geology and Paleoclimatology Research
- Atmospheric and Environmental Gas Dynamics
- Marine Bivalve and Aquaculture Studies
- Hydrocarbon exploration and reservoir analysis
- Marine and coastal plant biology
- Ocean Acidification Effects and Responses
- Polar Research and Ecology
- Aquaculture disease management and microbiota
- Marine and coastal ecosystems
- Coastal wetland ecosystem dynamics
- Marine animal studies overview
- Bacteriophages and microbial interactions
- Crustacean biology and ecology
- Cryospheric studies and observations
- Genomics and Phylogenetic Studies
- Reservoir Engineering and Simulation Methods
- Drilling and Well Engineering
- Insect symbiosis and bacterial influences
- Paleontology and Stratigraphy of Fossils
Oregon State University
2016-2025
University of California, Santa Barbara
2025
National Institute of Water and Atmospheric Research
2023
Rutgers Sexual and Reproductive Health and Rights
2022
Rice University
2022
NOAA Oceanic and Atmospheric Research
2016
Scripps Institution of Oceanography
2006-2016
Corvallis Environmental Center
2016
University of California, San Diego
2010-2014
Moss Landing Marine Laboratories
2005-2010
Carbonate communities: The activity of anaerobic methane oxidizing microbes facilitates precipitation vast quantities authigenic carbonate at seeps. Here we demonstrate the significant role rocks in promoting diversity by providing unique habitat and food resources for macrofaunal assemblages seeps on Costa Rica margin (400–1850 m). attendant fauna is surprisingly similar to that rocky intertidal shores, with numerous grazing gastropods (limpets snails) as dominant taxa. However, community...
The deep sea encompasses the largest ecosystems on Earth. Although poorly known, seafloor provide services that are vitally important to entire ocean and biosphere. Rising atmospheric greenhouse gases bringing about significant changes in environmental properties of realm terms water column oxygenation, temperature, pH food supply, with concomitant impacts deep-sea ecosystems. Projections suggest abyssal (3000–6000 m) temperatures could increase by 1°C over next 84 years, while habitats...
Although initially viewed as oases within a barren deep ocean, hydrothermal vent and methane seep communities are now recognized to interact with surrounding ecosystems on the sea floor in water column, affect global geochemical cycles. The importance of understanding these interactions is growing potential rises for disturbance from oil gas extraction, seabed mining bottom trawling. Here we synthesize current knowledge nature, extent time space scales background systems. We document an...
Abstract. The deep sea is often viewed as a vast, dark, remote, and inhospitable environment, yet the ocean seafloor are crucial to our lives through services that they provide. Our understanding of how functions remains limited, but when treated synoptically, diversity supporting, provisioning, regulating cultural becomes apparent. biological pump transports carbon from atmosphere into deep-ocean water masses separated over prolonged periods, reducing impact anthropogenic release. Microbial...
Mora and colleagues show that ongoing greenhouse gas emissions are likely to have a considerable effect on several biogeochemical properties of the world's oceans, with potentially serious consequences for biodiversity human welfare.
Ocean manipulation to mitigate climate change may harm deep-sea ecosystems.
With the continued and unprecedented decline of coral reefs worldwide, evaluating factors that contribute to demise is critical importance. As cover declines, macroalgae are becoming more common on tropical reefs. Interactions between these corals may alter microbiome, which thought play an important role in colony health survival. Together, such changes benthic microbiome result a feedback mechanism contributes additional loss. To determine if we conducted field-based experiment Porites...
Previous studies of coral viruses have employed either microscopy or metagenomics, but few attempted to comprehensively link the presence a virus-like particle (VLP) genomic sequence. We conducted transmission electron imaging and virome analysis in tandem characterize most conspicuous viral types found within dominant Pacific reef-building genus Acropora. Collections for this study inadvertently captured what we interpret as natural outbreak infection driven by aerial exposure reef flat...
Vent and seep animals harness chemosynthetic energy to thrive far from the sun's energy. While symbiont-derived fuels many taxa, vent crustaceans have remained an enigma; these shrimps, crabs, barnacles possess a phylogenetically distinct group of bacterial epibionts, yet role bacteria has unclear. We test whether new species Yeti crab, which we describe as Kiwa puravida n. sp, farms epibiotic that it grows on its chelipeds (claws), crab waves in fluid escaping deep-sea methane seep. Lipid...
Cold seep communities with distinctive chemoautotrophic fauna occur where hydrocarbon-rich fluids escape from the seabed. We describe community composition, population densities, spatial extent, and within-region variability of epifaunal at methane-rich cold sites on Hikurangi Margin, New Zealand. Using data towed camera transects, we match observations to information about probable life-history characteristics principal develop a hypothetical succession sequence for communities, onset fluid...
Polar ecosystems are sensitive to climate forcing, and we often lack baselines evaluate changes. Here report a nearly 50-year study in which sudden shift the population dynamics of an ecologically important, structure-forming hexactinellid sponge, Anoxycalyx joubini was observed. This is largest Antarctic with individuals growing over two meters tall. In order investigate life history characteristics marine invertebrates, artificial substrata were deployed at number sites southern portion...
The ocean plays a crucial role in the functioning of Earth System and provision vital goods services. United Nations (UN) declared 2021–2030 as UN Decade Ocean Science for Sustainable Development. Roadmap aims to achieve six critical societal outcomes (SOs) by 2030, through pursuit four objectives (Os). It specifically recognizes scarcity biological data deep-sea biomes, challenges global scientific community conduct research advance understanding ecosystems inform sustainable management. In...
Abstract The upper continental slope in the northeastern Pacific Ocean is intercepted by a deep oxygen minimum zone (OMZ; 650–1100 m) and punctuated conduits of methane seepage. We examined effects these two dominant sources heterogeneity on density, composition diversity heterotrophic macrofauna off Hydrate Ridge, Oregon (OR; 800 m water depth), where seeps co‐occur within an OMZ, Eel River, Northern California (CA; 500 m), are overlain better oxygenated waters. hypothesized that...
Abstract The calving of A‐68, the 5,800‐km 2 , 1‐trillion‐ton iceberg shed from Larsen C Ice Shelf in July 2017, is one over 10 significant ice‐shelf loss events past few decades resulting rapid warming around Antarctic Peninsula. thinning, retreat, and collapse ice shelves along Peninsula are harbingers effects entire continent. cover more than 1.5 million km fringe 75% Antarctica's coastline, delineating primary connections between continent, continental ice, Southern Ocean. Changes bring...
Antarctica is estimated to contain as much a quarter of earth's marine methane, however we have not discovered an active Antarctic methane seep limiting our understanding the cycle. In 2011, expansive (70 m × 1 m) microbial mat formed at 10 water depth in Ross Sea, which identify here be high latitude hydrogen sulfide and seep. Through 16S rRNA gene analysis on samples collected year 5 years after formed, taxa involved cycle quantify response rate community novel input methane. One ANaerobic...
During the discovery and description of seven New Zealand methane seep sites, an infaunal assemblage dominated by ampharetid polychaetes was found in association with high seabed emission. This ampharetid‐bed had a mean density 57,000 ± 7800 macrofaunal individuals m −2 maximum wet biomass 274 g , both being among greatest recorded from deep‐sea seeps. We investigated these questions: Does species present within beds form distinct community on margin? What type chemoautotrophic microbes fuel...
Methane seep microbial communities perform a key ecosystem service by consuming the greenhouse gas methane prior to its release into hydrosphere, minimizing impact of marine sources on our climate. Although previous studies have examined ecology and biochemistry these communities, none has viral assemblages associated with habitats. We employed virus particle purification, genome amplification, pyrosequencing gene/genome reconstruction annotation two metagenomic libraries, one prepared for...
Sporosarcina pasteurii is known to produce calcite or biocement in the presence of urea and Ca(2+). Herein, we report use novel ultramicrosensors such as pH, Ca(2+), redox sensors, along with a scanning electrochemical microscope (SECM), monitor real-time, bacteria-mediated hydrolysis process subsequent changes morphology due CaCO3 precipitation. We that surface pH live biofilm changed rapidly from 7.4 9.2 within 2 min, whereas similar fast depletion (10 min) Ca(2+) was observed 85 mM 10...