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11 papers found.
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Production of methane and ethylene from plastic in the environment

Formal analysis: Sarah-Jeanne Royer. Funding acquisition: David M. Karl. Conceptualization: Sarah-Jeanne Royer, Sara FerroÂn, Samuel T. Wilson, David M. Karl. Investigation: Sarah-Jeanne Royer, Sara ... FerroÂn, Samuel T. Wilson, David M. Karl. Methodology: Sarah-Jeanne Royer, Sara FerroÂn, Samuel T. Wilson, David M. Karl. Project administration: Sarah-Jeanne Royer, David M. Karl. Resources: Sarah-Jeanne

Ecosystem Structure and Dynamics in the North Pacific Subtropical Gyre: New Views of an Old Ocean

The North Pacific Subtropical Gyre (NPSG) is one of the largest biomes on Earth. It has a semi-enclosed surface area of about 2 × 107 km2 and mean depth of nearly 5 km and includes a broad range of habitats from warm, light-saturated, nutrient-starved surface waters to the cold, nutrient-rich abyss. Microorganisms are found throughout the water column and are vertically...

Wind and sunlight shape microbial diversity in surface waters of the North Pacific Subtropical Gyre

Few microbial time-series studies have been conducted in open ocean habitats having low seasonal variability such as the North Pacific Subtropical Gyre (NPSG), where surface waters experience comparatively mild seasonal variation. To better describe microbial seasonal variability in this habitat, we analyzed rRNA amplicon and shotgun metagenomic data over two years at the Hawaii...

Evaluation of the utility of xanthophyll cycle pigment dynamics for assessing upper ocean mixing processes at Station ALOHA

ROBERT R. BIDIGARE 0 FENINA R. BUTTLER 0 STEPHANIE J. CHRISTENSEN 0 BENEDETTO BARONE DAVID M. KARL SAMUEL T. WILSON 0 HAWAII INSTITUTE OF MARINE BIOLOGY We had the opportunity to evaluate the

Measurements of nitrogen fixation in the oligotrophic North Pacific Subtropical Gyre using a free-drifting submersible incubation device

One challenge in field-based marine microbial ecology is to achieve sufficient spatial resolution to obtain representative information about microbial distributions and biogeochemical processes. The challenges are exacerbated when conducting rate measurements of biological processes due to potential perturbations during sampling and incubation. Here we present the first...

Will ocean acidification affect marine microbes?

Joint in:Nature Research journals • PubMed • Google ScholarSearch for Scott C Doney in:Nature Research journals • PubMed • Google ScholarSearch for David M Karl in:Nature Research journals • PubMed

Subtropical ocean ecosystem structure changes forced by North Pacific climate variations

Biological responses to basin-scale climate forcing in the subtropical North Pacific Ocean are assessed based on temporal variations in plankton community structure observed at Station ALOHA and results of a coupled physical–biogeochemical model. Observational data and model simulations for the period 1990–2004 reveal distinct temporal patterns, with significant increases in net...

Draft genome sequence of marine alphaproteobacterial strain HIMB11, the first cultivated representative of a unique lineage within the Roseobacter clade possessing an unusually small genome

. Church 8 11 Edward F. DeLong 0 11 David M. Karl 8 11 Grieg F. Steward 8 11 John M. Eppley 0 11 Nikos C. Kyrpides 9 11 Stephan Schuster 11 Michael S. Rappé 11 0 Department of Civil and Environmental

Draft genome sequence of strain HIMB100, a cultured representative of the SAR116 clade of marine Alphaproteobacteria

Grieg F. Steward David M. Karl Edward F. DeLong John M. Eppley Stephan C. Schuster Nikos C. Kyrpides Mi- chael S. Rappé Strain HIMB100 is a planktonic marine bacterium in the class Alphaproteobacteria

The Sorcerer II Global Ocean Sampling Expedition: Northwest Atlantic through Eastern Tropical Pacific

The world's oceans contain a complex mixture of micro-organisms that are for the most part, uncharacterized both genetically and biochemically. We report here a metagenomic study of the marine planktonic microbiota in which surface (mostly marine) water samples were analyzed as part of the Sorcerer II Global Ocean Sampling expedition. These samples, collected across a several...