A5088037575- Oceanographic and Atmospheric Processes
- Marine and fisheries research
- Marine Biology and Ecology Research
- Marine and coastal ecosystems
- Coastal and Marine Dynamics
- Coastal wetland ecosystem dynamics
- Marine and coastal plant biology
- Ocean Waves and Remote Sensing
- Coral and Marine Ecosystems Studies
- Ocean Acidification Effects and Responses
- Geological formations and processes
- Tropical and Extratropical Cyclones Research
- Coastal and Marine Management
- Geology and Paleoclimatology Research
- Underwater Acoustics Research
- Marine Bivalve and Aquaculture Studies
- Fish Ecology and Management Studies
- Isotope Analysis in Ecology
- Aeolian processes and effects
- Marine and environmental studies
- Toxoplasma gondii Research Studies
- Atmospheric and Environmental Gas Dynamics
- Climate variability and models
- Methane Hydrates and Related Phenomena
- Crustacean biology and ecology
University of California, Davis
2016-2025
Bay Institute
2015-2024
Eastern Nazarene College
2023
University of Waikato
2023
University of Hormozgan
2023
The University of Sydney
2023
The University of Melbourne
2023
Mote Marine Laboratory
2006-2021
North Carolina State University
2017-2019
Woods Hole Oceanographic Institution
2017-2019
Concepts and theory for the design application of terrestrial reserves is based on our understanding environmental, ecological, evolutionary processes responsible biological diversity sustainability ecosystems how humans have influenced these processes. How well this terrestrial-based can be applied toward in coastal marine environment depends, part, degree similarity between systems. Several marked differences ecological exist as ramifications fundamental their physical environments (i.e.,...
Determination of larval dispersal distances and origins is a central challenge in contemporary marine ecology. In this work, the problem discussed from perspective oceanography. Following formulation advection–diffusion model, importance scale argued. When considering dispersion parameters at appropriate population scales, advection usually weaker than initially anticipated (and often used), diffusion stronger typically used model studies. Focusing attention on coastal populations, retention...
Abstract The advent of an ecosystem‐based approach dramatically expanded the scope fisheries management, creating a critical need for new kinds data and quantitative approaches that could be integrated into management system. Ecosystem models are needed to codify relationships among drivers, pressures resulting states, quantify trade‐offs between conflicting objectives. Incorporating ecosystem considerations requires moving from single‐species used in stock assessments, more complex include...
Abstract During 2014–2016, severe marine heatwaves in the northeast Pacific triggered well-documented disturbances including mass mortalities, harmful algal blooms, and declines subtidal kelp beds. However, less attention has been directed towards understanding how changes sea surface temperature (SST) alongshore currents during this period influenced geographic distribution of coastal taxa. Here, we examine these effects northern California, USA, with a focus on region between Point Reyes...
Academic, government, and private organizations from around the globe have established High Frequency radar (hereinafter, HFR) networks at regional or national levels. Partnerships been to coordinate collaborate on a single global HFR network (http://global-hfradar.org/ ). These partnerships were in 2012 as part of Group Earth Observations (GEO) promote technology increase data sharing among operators users. The main product are continuous maps ocean surface currents within 200 km coast high...
The pun in the above title reflects two points. First, marine life cycles commonly include a dispersive juvenile stage that is moved about by ocean currents. This often predominant, or only, means of dispersal connects spatially disjunct populations. As consequence, details likely play critical role determining effectiveness reserves as management and conservation tool. Curiously, however (and this second point title), although dozens models for now exist, few actually account explicitly...
We monitored settlement of sea urchins ( Strongylocentrotus spp.) and crabs (primarily Cancer concurrent physical variables at Bodega Marine Laboratory (BML) Salt Point (northern California) from April through August 1992. Upwelling favorable winds led to lower temperatures, higher salinities, subsurface pressures BML, while periods relaxation upwelling typically caused a lagged reversal each these trends. This response was due combination alongshore onshore flow near‐surface water this...
The circulation over the shelf and upper slope off northern California, between 38°N 42°N, was observed using moored current temperature recorders deployed as part of Northern California Coastal Circulation Study (NCCCS), from March 1987 through October 1989. results this study provide a larger‐scale view wind‐driven than that described 1981–1982 Ocean Dynamics Experiment (CODE), particularly with regard to alongshore temporal variations. From an improved description frequency structure wind...
The ability of miniscule larvae to control their fate and replenish populations in dynamic marine environments has been a long‐running topic debate central importance for managing resources understanding the ecology evolution life sea. Larvae are considered be highly susceptible offshore transport productive upwelling regions, thereby increasing dispersal, limiting onshore recruitment, reducing intensity community interactions. We show that 45 species nearshore crustaceans were not...
Alongshore wind speed and sea surface temperature (SST) from coastal National Data Buoy Center buoys are used to study the variability of wind‐driven upwelling 1982 2008. A long‐term increase in is observed central California (35°N–39°N) with stronger upwelling‐favorable winds, colder water, more frequent occurrences days during season (March–July). Further, a longer same region, starting earlier spring persisting later fall. These interannual changes strength seasonal duration investigated...
123°00′W) occurs primarily during relaxation from upwelling, when warm water flows poleward the Gulf of Farallones. During 1994 and 1995 we sampled planktonic larval distributions hydrography both south north Point Reyes upwelling to test whether high concentrations crab rockfish larvae were concentrated in source flow Reyes. An plume off an “upwelling shadow,” indicated by warmer, less saline northern Gulf, evident years, as frontal regions that marked boundaries between types three...
We present findings from two sets of measurements that quantified currents around and over the full extent a giant kelp ( Macrocystis pyrifera ) forest located at Mohawk Reef, Santa Barbara, California. Velocities were damped inside this 200‐m X 300‐m forest, but not to reported for larger (kilometer‐scale) beds, suggesting alongshore may play greater role in exchange than has often been assumed. Secondary flow features bear on performance organisms observed, including region along forest’s...
Upwelling winds off North Carolina set up upwelling fronts. As the wind forcing relaxed following such a coastal event, we observed front move onshore. The low‐density surface water moved shoreward over upwelled water, forming convergence zone at front. This shoreward‐moving concentrated and transported larvae. Larval sergestid shrimp, spionid polychaete larvae, veligers of Odostomia sp. Bittium were on seaward side moving convergence. Blue crab megalopae immediately These data demonstrate...
A sector‐scanning Doppler sonar was deployed at the end of Scripps Institution Oceanography pier, aimed in toward surf zone. Estimates acoustic backscatter intensity and radial velocity were obtained seaward break point, over a wedge with an arc about 45° radius 200 to 400 m. The is proportional some combination bubble density suspended sediment water. Well‐defined jets water extending from zone or “rip currents” observed. These rip currents occurred episodically, recurred aperiodically one...
The interaction of alongshore coastal currents with large headlands has been shown to increase the retention planktonic organisms through formation headland eddies or upwelling shadows in their lee. This study investigates circulation within Bodega Bay (in lee a small headland), an region, and potential for plankton. During season 2004, time series temperature velocity were recorded throughout Bay, conductivity‐temperature‐depth (CTD) surveys conducted, surface drifters released during...
Two high‐frequency radar stations (CODAR) were installed along the northern California coast in May 2001. Comparisons of data with acoustic Doppler current profiler (ADCP) and near‐surface drifter tracks indicate considerable agreement, minimum RMS differences order 0.05–0.15 m/s average drifter‐HF‐radar track separation rates 5 ± 3 km/d. Radar resolve three main sources intraseasonal variability area: (1) upwelling/relaxation dynamics, (2) tidal diurnal forcing, (3) inertial currents....
Abstract Observations of the buoyant coastal current that flows southward from Chesapeake Bay are used to describe how thickness, width, and propagation speed vary in response changes along-shelf wind stress. Three basic regimes were observed depending on strength wind. For weak stresses (from −0.02 0.02 Pa), was relatively thin, front slope not steep, width variable (1–20 km). moderate downwelling (southward) (0.02–0.07 wind-driven cross-shelf advection steepened front, causing plume narrow...