A5039012883- Marine and coastal ecosystems
- Microbial Community Ecology and Physiology
- Underwater Vehicles and Communication Systems
- Marine Biology and Ecology Research
- Ocean Acidification Effects and Responses
- Oceanographic and Atmospheric Processes
- Marine Toxins and Detection Methods
- Marine and coastal plant biology
- Genomics and Phylogenetic Studies
- Coastal and Marine Management
- Analytical Chemistry and Sensors
- Marine and fisheries research
- Methane Hydrates and Related Phenomena
- Water Quality Monitoring Technologies
- Underwater Acoustics Research
Monterey Bay Aquarium Research Institute
2008-2024
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...
Bathycoccus and Ostreococcus are broadly distributed marine picoprasinophyte algae. We enumerated small phytoplankton using flow cytometry qPCR assays for phylogenetically distinct clades BI BII OI OII. Among 259 photic-zone samples from transects time-series, maxima occurred in the North Pacific coastal upwelling (36 713 ± 1485 copies ml-1 ) Kuroshio Front OII (50 189 561 two overlapped only frontal regions. The more often with along Line-P (10 667 1299 tropical Atlantic (4125 339 ). Only...
Abstract The California Current System is thought to be particularly vulnerable ocean acidification, yet pH remains chronically undersampled along this coast, limiting our ability assess the impacts of acidification. To address observational gap, we integrated Deep-Sea-DuraFET, a solid-state sensor, onto Spray underwater glider. Over course year starting in April 2019, conducted seven missions central that spanned 161 glider days and >1600 dives maximum depth 1000 m. sensor accuracy was...
Abstract The effort and expense associated with sample data collections for long oceanographic time series are, in part, driving the development of autonomous platforms, sensors collectors. Here we validate basic samples collected by an underwater vehicle water sampler (AUV “Gulper”) comparison a standard collection device, conductivity‐temperature‐depth rosette Niskin bottles. After elimination toxic material, “on‐deck” field comparisons show that Gulpers bottles collect comparable nitrate,...
A primary limitation of phytoplankton ecology research is the difficulty describing patchiness and distributions different groups. Chlorophyll fluorescence optical backscatter are useful measurements that provide information about phytoplankton, but these do not allow distinction taxa. Traditional identification methods (such as microscopy, HPLC analysis, flow cytometry) labor intensive therefore can only very limited coverage resolution. Through lab experiments we show Laser In Situ...
Abstract Nitrification plays a key role in marine ecosystems where Thaumarchaeota are thought to be responsible for most of the ammonia oxidation water column. Over 2‐yr, near‐monthly time series at two sites Monterey Bay we observed repeatable seasonal and depth‐based patterns ecotype abundance that highlighted clear delineation between populations shallow euphotic (< 50 m) vs. deeper mesopelagic (60–500 depths. Euphotic depths show greater seasonality influence from light, while waters...
In 2017, the International Ocean Carbon Coordination Project (IOCCP) and Japan Agency for Marine-Earth Science Technology (JAMSTEC) decided to conduct 6th Inter-Calibration Exercise, “2017/18 inter-laboratory comparison exercise of Certified Reference Materials Nutrients in Seawater, CRM”. As was case with previous four inter-comparison (IC) studies organized by MRI-JMA IOCCCP-JAMSTEC IC 2015, aim this improve level comparability exchanging knowledge among participating laboratories. The...
Tropical environments with unique abiotic and biotic factors—such as salt ponds, mangroves, coral reefs—are often in close proximity. The heterogeneity of these is reflected community shifts over short distances, resulting high biodiversity. While phytoplankton assemblages physically associated corals, particularly their symbionts, are well studied, less known about diversity across tropical aquatic environments. We assess composition along inshore to offshore gradients by sequencing...
Bacterial communities directly influence ecological processes in the ocean, and depth has a major due to changeover primary energy sources between sunlit photic zone dark ocean. Here, we examine abundance diversity of bacteria Monterey Bay profiles collected from surface just above sediments (e.g., 2000 m). these Pacific Ocean samples decreased by >1 order magnitude, 1.22 ±0.69 ×10 6 cells ml -1 variable 1.44 ± 0.25 5 6.71 1.23 4 mesopelagic bathypelagic, respectively. V1-V2 16S rRNA gene...