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Department of Estuarine and Ocean Sciences Seminar
“Wave generated vorticity in the surfzone: helicopters, mega cusps, and the Ring of Doom”
Applied Ocean Physics & Engineering, Woods Hole Oceanographic Institution
Wednesday, December 4, 2013
At SMAST I, Room 204
706 S. Rodney French Blvd., New Bedford, MA 02744
*Will be simulcast to Room 325A, SMAST II
Department of Fisheries Oceanography Seminar
“Invasion of the western North Atlantic shoreline by the exotic crab Hemigrapsus sanguineus: Lotka-Volterra competition model with discontinuous carrying capacity function captures invasion dynamics”
Wednesday, December 4, 2013
At SMAST II, Room 158
200 Mill Road, Fairhaven, MA 02719
|Stokesbury named "Scholar of the Year"
Prof. Kevin Stokesbury has been named UMass Dartmouth Scholar of the Year, the Faculty Federation announced last week. He is Professor and Chair in the SMAST Department of Fisheries Oceanography.
Prof. Stokesbury is well known for the drop-camera system for scallop surveys that he developed with Prof. Brian Rothschild and has deployed ever since in cooperation with the scallop fleet. That system is strongly associated with the recovery of the industry and its successful operation ever since. He is currently involved in developing a non-capture system for surveying groundfish populations.
Prof. Stokesbury's previous awards and honors include the David H. Wallace Award (National Shellfish Association, 2013), Dr. David L. Belding Award for marine resource conservation (2004), and the UMass President's Award for Public Service (2002). He was named "Friend of the Fishing Industry” (Port of New Bedford) in 2008, and in 2013 his research laboratory, the Marine Fisheries Field Research Group, was selected for the Outstanding Organization Award from the Southern New England Chapter of the American Fisheries Society.
His students have won "Best Paper," "Best Presentation," and "Best Use of Technology in a Poster" awards from the National Shellfisheries Association, the International Pectinid Workshop, the ICES Annual Science Conference, and the American Fisheries Society, national and regional level.
He will receive his award at a banquet on December 4.
|A giant in fisheries science steps aside
Some 200 friends, colleagues and well-wishers gathered at the Century House in Acushnet, MA, on Friday, October 18, to celebrate the remarkable career of distinguished fishery scientist and lifelong friend of the fishing industry, Dr. Brian Rothschild.
The ceremonies (photo album
) included tributes to Dr. Rothschild’s achievements from the city, state and national levels. New Bedford Mayor Jon Mitchell read an official municipal resolution “in appreciation for [Rothschild’s] commitment to innovative and accurate science and for his indispensable contributions to the fishing industry … .”
Majority Leader Bruce Tarr delivered a resolution from the Massachusetts Senate “honoring Brian J. Rothschild for a lifetime of dedication and achievement in the field of marine fisheries.”
A Certificate of Special Congressional Recognition was presented by Rep. William Keating (left in photo
) for Dr. Rothschild’s “unmatched contributions to marine sciences and fisheries research.”
Also on the dais were State Representative Tony Cabral; John Bullard, Northeast Administrator, NOAA Fisheries; Massachusetts Division of Marine Fisheries Director Paul Diodati; UMassD Chancellor Divina Grossman; Richard Canastra, President of Whaling City Seafood Display Auctions; Woods Hole oceanographer Prof. Kenneth Brink; and SMAST Prof. Kevin Stokesbury. SMAST Dean Steven Lohrenz was Master of Ceremonies.
As an indication of how much he can be expected to relax in retirement, Dr. Rothschild was elected president of the fledgling Center for Sustainable Fisheries just days after his retirement celebration.
|Swim-through video net applied to yellowtail
Prof. Kevin Stokesbury has been awarded a grant from the Massachusetts Division of Marine Fisheries to further the development of a new non-capture survey technique, and apply it to yellowtail flounder stock assessment on Georges Bank.
Yellowtail flounder is a "bottleneck species." Their estimated low numbers have led to strict catch limits that threaten other fisheries (scallops, groundfish) that inadvertently catch them. Yet these estimates are questionable due to problems with the stock assessments.
Stokesbury and company will be sampling with a modified groundfish trawl with a video camera mounted in the cod end, which can be towed closed or open, allowing for sampling without removing any fish from the population. A pilot study with this gear in April calibrated the swim-through technique against standard trawl sampling. A team of researchers and fishermen leaves port November 6 to test a version of the gear refined by lead designer Tor Bendiksen.
In a separate effort funded by the Massachusetts Clean Energy Center, Stokesbury's lab will use the SMAST-industry cooperative video survey to examine the substrate habitat in the area proposed for offshore windfarm leasing. The data collected under this proposal will be linked to the existing SMAST video data set to provide a baseline for future environmental assessment of windfarm proposals.
**Prof. Stokesbury's 11/4 testimony
on cooperative research to Sen. Elizabeth Warren's Congressional panel in Boston is now available.
|SMAST kicks off Gliderpalooza
"Blue is away!" With those words, engineers from SMAST's Ocean Observation Lab launched their ocean glider "Blue" off Martha's Vineyard on September 6, and a continental-scale observation experiment called Gliderpalooza
got under way. A dozen or more gliders are following suit and will be plying the waters of the Atlantic seaboard from Nova Scotia to Georgia through late October.
Three East Coast regional associations of the US Integrated Ocean Observing System, along with the eastern Canadian ocean observation effort, are collaborating on the experiment. The North American Atlantic shelf waters are among the most seasonally variable in the world, and Gliderpalooza data will contribute toward understanding the physical regulation of the timing and extent of these dramatic seasonal shifts. Of particular interest is a seasonal feature termed "the Cold Pool," a bottom-trapped, anomalously cool water mass expected to influence the distribution of fish species in the mid-Atlantic.
Ocean gliders operate by translating small changes in buoyancy into forward motion with each dive or surfacing, so the glider takes measurements along a serrated cross-section of the water column. At the surface, the glider exchanges information with "home base" via satellite phone. Track gliders here
|NSF awards support WHOI/SMAST collaborations
The National Science Foundation has funded a pair of studies of the coastal ocean to be conducted jointly by the Woods Hole Oceanographic Institution and SMAST.
A $1.5 million award to a team led by PI Anthony Kirincich (WHOI) will support the first comprehensive study of current variability in the coastal ocean at scales from hundreds of meters to tens of kilometers. This unprecedented level of detail will be made possible by a combination of dense observations made by WHOI and a computer model, developed by SMAST Prof. Changsheng Chen and collaborators, which is capable of resolving very intricate oceanic and coastal features.
The model, called the Finite Volume Community Ocean Model, will also be employed in a $600 thousand study led by WHOI PI Steve Lentz analyzing the so-called "Cold Pool," a band of cold, nutrient-rich bottom water that extends the length of the Middle Atlantic Bight (from Cape Cod to Cape Hatteras) throughout the spring and summer. Many of the migratory fish species of the region have evolved to either seek out or avoid the cold waters of this bottom feature, and growing concerns about the impact of global climate change on the ecosystem, especially fisheries, adds urgency to the investigation.