Cod fishing in New England has steadily declined over the past three decades. It’s estimated that hundreds of people have lost their jobs as a result and that continued failure to rebuild the fishery could cost the region’s economy a total of $200 million, according to the New England Fishery Management Council.
But the big concern is really one of culture, according to Northeastern’s Jon Grabowski. “You’re talking about an iconic fishery. Cod has been fished in these waters going back hundreds and hundreds of years,” said Grabowski, an associate professor of marine and environmental science at the university’s Marine Science Center in Nahant, Massachusetts. “You can go back a thousand years to the Basques coming over to fish these historically really productive grounds,” he said.
Grabowski, has been working with other fisheries scientists as well as economists, social scientists, and policy makers to determine the best strategies for dealing with the all of the Northeast region’s fisheries that impact habitat, which includes cod, haddock, cusk, scallops, clams and other fish that live near the sea floor and are of significant socioeconomic value to the region.
In the first of a series of research articles produced by the PDT, Grabowski and his colleagues examine the vulnerability of groundfish habitats to various types of fishing gear. “We reviewed how all the different geological and biological components of habitat are affected by these different types of gear,” Grabowski said. The committee examined how easily these habitats can be damaged and how long it takes for them to recover.
They found that mobile fishing gear such as trawls and dredges that drag along the bottom cause more damage to areas inhabited by groundfish than stationary gear like traps and gillnets. They also found that larger geological features, such as cobble and boulders, are more susceptible to damage and take longer to recover than sand and mud—after all, some of these geological features have taken millennia to form.
The research, published online last month in the journal Reviews in Fisheries Science & Aquaculture, uses these results to develop a framework that will provide fisheries managers a standardized method for identifying the most vulnerable habitats. Their work is being used as part of the Second Habitat Omnibus to inform redesigning the fishing closures on Georges Bank and in the Gulf of Maine.
“We worry most about the components of habitats that are highly susceptible to any of these gears and that have very long recovery times. Those are the kinds of persistent and severe impacts that we’d want to manage against,” Grabowski said. His research focuses on the many interconnecting arms of fisheries science and management.
Grabowski said there are many stakeholders involved when dealing with complex challenges like New England’s fishery problems. His approach focuses on interdisciplinary solutions to these challenges by examining not just the basic ecology of these species and their habitats, but also the ways in which the coastal communities are reacting to how fisheries are managed.
Grabowski compared himself to a cod—a generalist in the marine world—since he works across traditional institutional and sectorial boundaries to identify the best strategies and find ways to effectively implement them.
“At the end of the day,” Grabowski said, “if we really want to do something about sustainability, we must be doing the kinds of things that involve policy and help shape the way society self regulates.”
Casey Bayer | Eurek Alert!
Scientists produce a new roadmap for guiding development & conservation in the Amazon
09.12.2016 | Wildlife Conservation Society
Successful calculation of human and natural influence on cloud formation
04.11.2016 | Goethe-Universität Frankfurt am Main
Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
09.12.2016 | Life Sciences
09.12.2016 | Ecology, The Environment and Conservation
09.12.2016 | Health and Medicine