University of Delaware Archives - Page 2 of 2

UD gets NOAA grant to study microplastics in blue crabs

November 5, 2019 — A federal grant will help two University of Delaware researchers look at the impact of microplastics on blue crabs.

The researchers will use the $327,000 grant to examine crab larvae exposure to microplastics in the Delaware Bay.

Microplastics are the size of sesame seeds. Microbeads, a type of microplastics, can easily pass through water filtration systems and end up in lakes and oceans.

Estella Atekwana is dean of the College of Earth, Ocean and Environment. She says they hope to determine how microplastics enter the larvae.

“For us to understand the different exposure pathways where this plastics get into the seafood or marine life and within the food chain and how does this eventually get to humans,” she said. “It’s really early on, I’m not so sure that we truly understand the different pathways.”

Read the full story at Delaware Public Media

What Makes Healthy Reefs ‘Smell’ Good to Fish?

March 21, 2017 — The following was released by the Monmouth University Urban Coast Institute:

What makes fish feel at home around healthy coral reefs and avoid degraded ones? Monmouth University Urban Coast Institute (UCI) Director Tony MacDonald has joined a research team dedicated to understanding the chemical cues that influence how fishes, corals and other organisms select a reef habitat.

The project is being led by the University of Delaware’s Danielle Dixson with the support of a $1 million grant from the Gordon and Betty Moore Foundation. Additional collaborators include Valerie Paul, a natural products chemist and lead scientist at the Smithsonian Marine Station and director of the Carrie Bow Cay field station in Belize; and Jay Odell, Mid-Atlantic marine program director at The Nature Conservancy in Virginia.

Previous research by Dixson demonstrated that fish can tell the difference between healthy and degraded reefs, and that degraded reefs produce a chemical cue that repels fishes and corals.

The researchers will conduct surveys during high recruitment periods at the Smithsonian Institution’s Carrie Bow Cay research station in Belize and record the composition of the benthic communities (coral, algae, sand), as well as what fish and other reef creatures — and their predators — recruit to these communities. The data will provide a picture of what is different on high recruitment reefs and low recruitment reefs. Armed with this information, the researchers will perform chemical tests to determine the source of positive or negative cues.

MacDonald and Odell will focus on how the chemical cues data could potentially be incorporated in digital mapping tools that will help inform reef conservation management decisions and ocean planning. They will work with the researchers to determine how their work may be transferred to other regions, particularly in the Mid-Atlantic region. The UCI is currently leading the development of the Mid-Atlantic Ocean Data Portal (portal.midatlanticocean.org), a free, state-of-the-art mapping and information site focused on ocean areas from New York through Virginia. Odell serves as the technical lead on the Portal project, and was recognized by the UCI with a Regional Champion of the Ocean award in 2015.

“This is an exciting opportunity to work with a team of innovative scientists on research that could impact coral preservation around the world,” MacDonald said. “The data gathered through this project will be used to develop more effective marine management and ocean planning strategies.”

Research at the Carrie Bow Cay facility will take place beginning this summer. The project is scheduled for completion in the fall of 2019.

New York utility poised to approve ambitious offshore wind project

July 15, 2016 — UNIONDALE, N.Y. – A New York utility plans to approve a wind farm off eastern Long Island that it says would be the nation’s largest offshore wind energy project built to date.

The project would be the first phase of a more ambitious effort to construct hundreds of electricity-producing turbines in the Atlantic Ocean in the coming years.

The announcement that the Long Island Power Authority plans to approve a proposed 90-megawatt, 15-turbine wind farm in U.S. waters east of Montauk at a meeting next week was greeted enthusiastically by energy experts, elected officials and environmentalists.

“This is obviously an important development,” said Jeffrey Firestone, a professor at the University of Delaware and an expert on offshore wind. “Hopefully, this will be something toward facilitating a more regional approach to the need for offshore wind energy.”

The U.S. lags behind Europe and others in development of offshore wind energy because of regulatory hurdles and opposition from fossil fuel and fishing interests, among other challenges. Many wind farms in Europe are already producing hundreds of megawatts of power.

Read the full story from the Associated Press in the Portland Press Herald

MAFMC Meets in Delaware June 13

May 31, 2016 — The Mid Atlantic Fishery Management Council will be meeting from Monday, June 13 through Thursday, June 16 at the University of Delaware in Clayton Hall, 100 David Hollowell Drive, Newark, DE 19716 (302-831-2998).

One of the key items of interest to many offshore anglers will be a 3 p.m. discussion on Wednesday regarding 2017 blueline tilefish specifications and potential alternatives to what was discussed at the last meeting (see the June edition of The Fisherman Magazine’s New Jersey, Delaware Bay edition for more.)

Monday, June 13th
1:00 p.m. – 5:00 p.m. Ecosystem and Ocean Planning Committee
• Fishing activities that impact habitat – draft policy document
• Review input from Advisory Panel
• Provide comments/revisions to draft document
• Other Committee updates

Read the full story at The Fisherman

Saving Seafood Executive Director Talks Lost NOAA HabCam

WASHINGTON (Saving Seafood) – May 25, 2016 — A $450,000 camera used to survey scallops on the ocean floor was lost Friday when a NOAA-chartered vessel towed it too close to a known ship wreck, as reported yesterday by the New Bedford Standard-Times.

This morning, Saving Seafood Executive Director Bob Vanasse spoke with New Bedford 1420 WBSM morning host Phil Paleologos about the accident, saying it proves the need for changes to the Atlantic scallop survey.

“The Fisheries Survival Fund [which represents members of the Atlantic scallop fleet] has been arguing for some time that the Federal scallop survey should not be done just by one single piece of equipment on one single vessel, but that there should be backups,” Mr. Vanasse said.

Compounding the problem the lost camera will have on this year’s Federal scallop survey is the fact that respected scientist Kevin Stokesbury, from UMass Dartmouth’s School for Marine Science and Technology, did not receive government funding for his own survey. Dr. Stokesbury’s surveys, which use cameras dropped into the ocean to take pictures of the seafloor, had previously been funded every year since 1999.

Mr. Vanasse called the loss of NOAA’s HabCam habitat camera last week “a combination of really bad circumstances.” He raised concerns about researchers aboard the R/V Hugh R. Sharp piloting the expensive HabCam so close to the well-known and charted wreckage of the Bow Mariner, where a cable apparently snagged the sunken ship and detached the camera. He also pointed out that many industry leaders raised concerns that a volunteer worker was piloting the HabCam at the time of the accident.

NOAA researchers are beginning efforts to find the HabCam today, nearly a week after it was lost, and say they will be able to make up for lost time. But scallop industry experts are unconvinced, according to Mr. Vanasse.

“That doesn’t really make sense,” Mr. Vanasse said of the industry perspective. “If they plan to go out for a certain time, they do that because they need it.”

The timing issue is further complicated because NOAA leases the Sharp from the University of Delaware for a limited period of time at high expense. Even if NOAA is able to salvage the HabCam, it will likely take more than a week of valuable time, Mr. Vanasse said.

The lost HabCam is not the first issue NOAA has had a with a research vessel in recent weeks. Earlier this month the R/V Henry B. Bigelow, the ship that surveys for groundfish and many other species on the East Coast, was delayed due to mechanical issues with its generators. The Bigelow was already running more than a month behind before its generator problems. Mr. Vanasse pointed out that Dr. Bill Karp, director of the Northeast Fisheries Science Center, has been pushing for NOAA to charter commercial fishing boats as backups, including at April’s NEFMC meeting (skip to 31:51 to listen to Dr. Karp).

“We need higher ups at NOAA to listen to what Dr. Karp has been saying about needing backups on the groundfish survey,” Mr. Vanasse said. “And we need everybody at NOAA to pay attention to what the [Fisheries] Survival Fund has been saying about having backups on the scallop survey.”

Listen to the full segment here