A5024290732- Marine and coastal ecosystems
- Microbial Community Ecology and Physiology
- Protist diversity and phylogeny
- Marine Toxins and Detection Methods
- Coral and Marine Ecosystems Studies
- Marine and coastal plant biology
- Diatoms and Algae Research
- Water Quality Monitoring Technologies
- Algal biology and biofuel production
- Thin-Film Transistor Technologies
- Marine Biology and Ecology Research
- Silicon Nanostructures and Photoluminescence
- Marine and fisheries research
- Marine Ecology and Invasive Species
- Silicon and Solar Cell Technologies
- Plant Pathogens and Resistance
- Conducting polymers and applications
- Wastewater Treatment and Nitrogen Removal
- Advanced biosensing and bioanalysis techniques
- Organic Electronics and Photovoltaics
- Underwater Vehicles and Communication Systems
- X-ray Spectroscopy and Fluorescence Analysis
- Plant and animal studies
- Luminescence and Fluorescent Materials
- Ion-surface interactions and analysis
Moss Landing Marine Laboratories
2010-2024
Victoria University of Wellington
2014
University of Maryland Center for Environmental Science
2009
University of California, Los Angeles
1989-1999
University of Southern California
1989-1993
University of Chicago
1989-1992
Smithsonian Marine Station
1992
Pacific University
1989
North Pacific Marine Science Organization
1987
University of Cambridge
1982-1985
Current sampling of genomic sequence data from eukaryotes is relatively poor, biased, and inadequate to address important questions about their biology, evolution, ecology; this Community Page describes a resource 700 transcriptomes marine microbial help understand role in the world's oceans.
How algae turn tides toxic Algal blooms can devastate marine mammal communities through the production of neurotoxins that accumulate within food web. Brunson et al. identified a cluster genes associated with biosynthesis neurotoxin domoic acid in diatom (see Perspective by Pohnert ). In vitro experiments established series enzymes create core structure toxin. Knowledge involved will allow for genetic monitoring algal and aid identifying conditions trigger toxin production. Science , this...
Abstract Diverse microbial ecosystems underpin life in the sea. Among these microbes are many unicellular eukaryotes that span diversity of eukaryotic tree life. However, genetic tractability has been limited to a few species, which do not represent or environmentally relevant taxa. Here, we report on development tools range protists primarily from marine environments. We present evidence for foreign DNA delivery and expression 13 species never before transformed advancement eight other as...
In May 1987, the population density of zooxanthellae in reef coral Seriatopora hystrix around Lizard Island (Great Barrier Reef) varied within and between colonies.This naturally occurring variabhty made it possible to examine effect on physiological characteristics S. hystnx its zooxanthellae.As increased, chlorophylla content maximum rate photosynthesis decreased.Phytoplankton studies suggest that cellular chlorophyll will increase if cells are selfshaded or decrease nitrogen-limited.To...
Abstract An ecologically and economically disruptive harmful algal bloom (HAB) affected much of the northeast Pacific margin in 2015, during a prolonged oceanic warm anomaly. Caused by diatoms genus Pseudo‐nitzschia , this HAB produced highest particulate concentrations biotoxin domoic acid (DA) ever recorded Monterey Bay, California. Bloom inception followed strong upwelling spring transition, which introduced nutrients eliminated anomaly locally. Subsequently, moderate intermittent created...
Recurrent blooms of harmful algae and cyanobacteria (HABs) plague many coastal inland waters throughout the USA have significant socioeconomic impacts to adjacent communities. Notable HAB events in recent years continue underscore remaining gaps knowledge increased needs for technological advances leading early detection. This review summarizes main research management priorities that can be addressed through ocean observation-based approaches solutions algal blooms, provides an update state...
Ninety-six percent of surveyed shallow-water Dry Tortugas reef corals died during the severe winter 1976-1977. Data from skeletal stains indicate that death occurred mid-January intrusion 14 degrees C water onto reef. In deeper water, community parameters such as cover, species number, and relative abundance showed no significant change. However, an analysis competitive interactions at growing edges adjacent colonies reveals a 70% reduction in space competition this environmental...
Particulate matter concentration (PM, often referred to as total suspended solids [TSS]) is an important parameter in the evaluation of water quality. Several optical measurements used provide estimate turbidity have also been PM, among them light transmission, backscattering, and side‐scattering. Here we analyze such performed by Alliance for Coastal Technologies (ACT) at various coastal locations establish whether a given method performs better than others estimation PM. All technologies...
In 2015, the largest recorded harmful algal bloom (HAB) occurred in Northeast Pacific, causing nearly 100 million dollars damages to fisheries and killing many protected marine mammals. Dominated by toxic diatom
Macrocystis (Lessoniaceae) displays an antitropical distribution, occurring in temperate subtidal regions along western North America the northern hemisphere and throughout southern hemisphere. We used noncoding rDNA internal transcribed spacer (ITS1 ITS2) to examine relatedness among (1) several genera of Laminariales, (2) four species ( M. integrifolia Bory from hemisphere, angustifolia laevis Hay pyrifera [L.] C. Ag. both hemispheres), (3) multiple clones individuals. Of taxa included our...
Molecular mechanisms that drive metabolic acclimation to environmental shifts have been poorly characterized in phytoplankton. In this laboratory study, the response of light- and N-limited Skeletonema costatum cells an increase light NO3 availability was examined. C assimilation depressed relative N early enrichment, photosynthetic quotient (O2 : CO2) increased, consistent with shunting reducing equivalents from CO2 fixation NO3− reduction. The concomitant dark respiration increased...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 367:35-47 (2008) - DOI: https://doi.org/10.3354/meps07569 Domoic acid contamination within eight representative species from benthic food web of Monterey Bay, California, USA Rikk G. Kvitek1,*, Judah D. Goldberg2, Jason Smith3, Gregory J. Doucette4, Mary W. Silver5 1Division Science and Environmental Policy,...
The temperature dependence of NADH:NR activity was examined in several marine phytoplankton species and vascular plants. These inhabit divergent thermal environments, including the chromophytes Skeletonema costatum (12–15° C), tropicum (18–25° Thalassiosira antarctica (−2 to 4° Phaeocystis green alga Dunaliella tertiolecta (14–28° plants Cucurbita maxima (20–35° C) Zea mays (20–25° C). Despite difference growth habitats, similar response curves were observed among chromophytic phytoplankton,...
ABSTRACT Yessotoxin (YTX) is a globally distributed marine toxin produced by some isolates of the dinoflagellate species Protoceratium reticulatum, Lingulodinium polyedrum , and Gonyaulax spinifera within order Gonyaulacales. The process isolating cells testing each isolate individually for YTX production during toxic blooms are labor intensive, this impedes our ability to respond quickly blooms. In study, we used molecular sequences from large subunit internal transcribed spacer genomic...
Domoic acid (DA) is a potent toxin produced by bloom-forming phytoplankton in the genus Pseudo-nitzschia, which responsible for causing amnesic shellfish poisoning (ASP) humans. ASP symptoms include vomiting, diarrhea, and more severe cases confusion, loss of memory, disorientation, even coma or death. This paper describes development validation rapid, sensitive, enzyme linked immunosorbent assay test kit detecting DA using monoclonal antibody. The gives equivalent results to those obtained...
Assimilatory nitrate reductase (NR) was purified from the marine diatom Skeletonema costatum (clone Skel) using Cibacron blue-Sepharose affinity chromatography. The single-step purification scheme yielded a 103-fold of specific activity with an overall recovery 40.8%. Only NADH-dependent NR (form EC 1.6.6.1) observed in this species. Kinetic analysis revealed that form had apparent Michaelis constants 3.6 [mu]M for NADH and 295 NO3- when cells grown NO3--enriched seawater. S. exhibits pH...