A5011646676- Marine and coastal ecosystems
- Oceanographic and Atmospheric Processes
- Oil Spill Detection and Mitigation
- Coral and Marine Ecosystems Studies
- Water Quality Monitoring Technologies
- Fish Ecology and Management Studies
- Marine and fisheries research
- Ocean Waves and Remote Sensing
- Underwater Acoustics Research
- Underwater Vehicles and Communication Systems
- Identification and Quantification in Food
- Marine animal studies overview
- Marine Biology and Ecology Research
- Marine Invertebrate Physiology and Ecology
- Coastal and Marine Dynamics
- Medical Image Segmentation Techniques
- Protist diversity and phylogeny
- Microbial Community Ecology and Physiology
- Marine and Offshore Engineering Studies
- Water Systems and Optimization
- Hydrology and Sediment Transport Processes
- Maritime Transport Emissions and Efficiency
- Smart Agriculture and AI
- Ichthyology and Marine Biology
- Inertial Sensor and Navigation
University of Miami
2012-2023
Woods Hole Oceanographic Institution
2019-2020
Institut Français de la Mer
2020
Instituto de Ciencias Marinas de Andalucía
2020
Scripps Institution of Oceanography
2020
Central Party School of the Communist Party of China
2019
Harvard University Press
2019
University of Washington
2019
Among eukaryotes, four major phytoplankton lineages are responsible for marine photosynthesis; prymnesiophytes, alveolates, stramenopiles, and prasinophytes. Contributions by individual taxa, however, not well known, genomes have been analyzed from only the latter two lineages. Tiny “picoplanktonic” members of prymnesiophyte lineage long inferred to be ecologically important but remain poorly characterized. Here, we examine pico-prymnesiophyte evolutionary history ecology using...
Floating oil, plastics, and marine organisms are continually redistributed by ocean surface currents. Prediction of their resulting distribution on the is a fundamental, long-standing, practically important problem. The dominant paradigm dispersion within dynamical context nondivergent flow: objects initially close together will average spread apart but area patches material does not change. Although this likely valid at mesoscales, larger than 100 km in horizontal scale, recent theoretical...
Over the last two decades, there has been an accelerating advancement of acoustic and optical plankton samplers, opening many opportunities for fine‐scale studies distribution. To date, however, imaging systems have limited in volume water being sampled, thereby restricting their utility to quantifying highly abundant, small zooplankton like copepods, but not relatively rarer, larger ichthyo‐ other meso‐zooplankton (e.g., larval decapods, salps, pteropods, ctenophores, etc.). Here we...
Abstract Targeted observations of submesoscale currents are necessary to improve science’s understanding oceanic mixing, but these dynamics occur at spatiotemporal scales that currently challenging detect. Prior studies have recently shown the surface velocity field can be measured by tracking hundreds drifters released in tight arrays. This strategy requires drifter positioning accurate, frequent, and last for several weeks. However, because large numbers involved, must low-cost, compact,...
Abstract The rise of in situ plankton imaging systems, particularly high‐volume imagers such as the In Situ Ichthyoplankton Imaging System, has increased need for fast processing and accurate classification tools that can identify a high diversity organisms nonliving particles biological origin. Previous methods automated have yielded moderate results either resolve few groups at accuracy or many relatively low accuracy. However, with advent new deep learning convolutional neural networks...
Abstract Plastics and spilled oil pose a critical threat to marine life human health. As result of wind forcing wave motions, theoretical laboratory studies predict very strong velocity variation with depth over the upper few centimeters water column, an observational blind spot in real ocean. Here we present first‐ever ocean measurements current vector profile defined within 1 cm free surface. In our illustrative example, magnitude averaged is shown be nearly four times average 10 m, even...
The behavior of reef fish larvae, equipped with a complex toolbox sensory apparatus, has become central issue in understanding their transport the ocean. In this study pelagic larvae were monitored using an unmanned open-ocean tracking device, drifting in-situ chamber (DISC), deployed sequentially oceanic waters and reef-born odor plumes propagating offshore ebb flow. A total 83 two taxonomic groups families Pomacentridae Apogonidae observed water masses around One Tree Island, southern...
Thin layers of phytoplankton are well documented, common features in coastal areas globally, but little is known about the relationships these to higher trophic levels. We deployed In Situ Ichthyoplankton Imaging System (ISIIS) simultaneously quantify three levels plankton, including phytoplankton, primary consumers (copepods and appendicularians) secondary (gelatinous zooplankton). Over a 2-week sampling period, thin layers, primarily composed Pseudo-nitzschia spp., were on two five days....
We sampled a front detected by SST gradient, ocean color imagery, and Spray glider south of San Nicolas Island in the Southern California Bight between 14 18 October 2010. with an unusually extensive array instrumentation, including Continuous Underway Fish Egg Sampler (CUFES), undulating In Situ Ichthyoplankton Imaging System (ISIIS) (fitted temperature, salinity, oxygen, fluorescence sensors), multifrequency acoustics, surface pelagic trawl, bongo net, neuston net. found higher greater...
Abstract The Lagrangian Submesoscale Experiment (LASER) involved the deployment of ~1000 biodegradable GPS-tracked Consortium for Advanced Research on Transport Hydrocarbon in Environment (CARTHE) drifters to measure submesoscale upper-ocean currents and their potential impact oil spills. experiment was conducted from January February 2016 Gulf Mexico (GoM) near mouth Mississippi River, an area characterized by strong currents. A Helmholtz-Zentrum Geesthacht (HZG) marine X-band radar (MR)...
Vertical distribution patterns were studied in the community of coral reef fish larvae around Tetiaroa (French Polynesia) using vertically stratified net tows within first 100 m water column. These examined statistically an approach based on center mass larval patches. Regression trees highlighted large differences between taxa, followed by ontogenetic effect each taxon. Many families displayed a vertical spread during ontogeny that accounted part for downward shift centers mass. The...
'Big data' are becoming common in biological oceanography with the advent of sampling technologies that can generate multiple, high-frequency data streams. Given need for 'big' ocean health assessments and ecosystem management, identifying implementing robust efficient processing approaches is a challenge marine scientists. Using large plankton imagery set, we present two crowd-sourcing applied to problem classifying millions organisms. The first used traditional by asking public identify...
Abstract The Lagrangian Submesoscale Experiment (LASER) was designed to study surface flows during winter conditions in the northern Gulf of Mexico. More than 1000 mostly biodegradable drifters were launched. consisted a floater extending 5 cm below surface, containing satellite tracking system, and drogue 60 hanging beneath on flexible tether. On some floats, separated from storms. This paper describes methods detect loss based two properties that distinguish drogued undrogued drifters....
Abstract The Taylor Energy Site is located in the vicinity of Mississippi Delta region over Northern Gulf Mexico (NGoM). Surface oil patches have been persistently observed within this site since 2004, when an rig was destroyed by Hurricane Ivan. A multiplatform observational experiment conducted April 2017 to investigate, for first time, main hydrocarbon pathways from toward NGoM continental shelves, and interior, under influence local regional physical processes. Results indicate that...
The small sizes of most marine plankton necessitate that sampling occur on fine spatial scales, yet our questions often span large areas. Underwater imaging can provide a solution to this conundrum but collects quantities data require an automated approach image analysis. Machine learning for classification, and high-performance computing (HPC) infrastructure, are critical rapid processing; however, these assets, especially HPC only available post-cruise leading ‘after-the-fact’ view...
Plankton and larval fish sampling programs often are limited by a balance between frequency (for precision) costs. Advancements in techniques hold the potential to add considerable efficiency and, therefore, improve precision. We compare newly developed plankton imaging system, In Situ Ichthyoplankton Imaging System (ISIIS), with bongo sampler, which is traditional gear 1960s. Comparative was conducted along 2 transects ~30–40 km long. Over days, we completed 36 ISIIS tow-yo undulations 11...
Plankton patch dynamics strongly influences rates of trophic transfer and many ecological processes, yet patchiness is poorly described, especially on fine-scales (cm to 10s m). We deployed the In Situ Ichthyoplankton Imaging System beneath Mississippi River plume measure horizontal distributions zooplankton across three depth zones (10, 25 35 found that larval fishes were significantly aggregated in shallow (10 m) deep (35 waters, but randomly distributed at m. contrast, gelatinous...
The pelagic larval phase represents a major opportunity for dispersal in benthic organisms, yet behaviors controlling and potentially limiting are still largely unknown most larvae. Here, we present new means of observing the orientation larvae all developmental stages environment. A cylindrical frame holding semi‐open arena which filmed is set to drift at controlled depth within natural Larval trajectories extracted from video data used quantify behavior. Field tests with late‐stage coral...
Recruitment levels of fishes are potentially related to the abundance larval and their food source. A system that could allow for concurrent investigation fine-scale distribution fish larvae potential prey add significantly understanding early life history marine fishes. coupled Multiple Opening Closing Net Environmental Sensing System (MOCNESS) combines two sub-systems (1 m 2 4 net sets) working in synchronization was designed answer these questions. The mesh size different on each set nets...
Abstract This study evaluates shipboard marine X‐band radar (MR) near‐surface current and bathymetry measurements under shallow water conditions. The retrieval algorithm is based on the surface wave signal within three‐dimensional number frequency MR backscatter intensity variance spectra. data were collected during a research cruise that investigated submesoscale processes their impact oil spill transport in Louisiana Bight. currents are validated using from 500 GPS‐equipped drifters,...