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!
Traffic emissions may pollute 1 in 3 Canadian homes
22.04.2015 | University of Toronto Faculty of Applied Science & Engineering
Engineers purify sea and wastewater in 2.5 minutes
17.04.2015 | Investigación y Desarrollo
KAIST researchers published an article on the development of a novel technique to precisely track the 3-D positions of optically-trapped particles having complicated geometry in high speed in the April 2015 issue of Optica.
Daejeon, Republic of Korea, April 23, 2015--Optical tweezers have been used as an invaluable tool for exerting micro-scale force on microscopic particles and...
A very small and rare species of shark is swimming its way through scientific literature. But don't worry, the chances of this inches-long vertebrate biting...
Ever since computers have been small enough to be fixtures on desks and laps, their central processing has functioned something like an atomic Etch A Sketch, with electromagnetic fields pushing data bits into place to encode data.
Unfortunately, the same drawbacks and perils of the mechanical sketch board have been just as pervasive in computing: making a change often requires starting...
How is lightning initiated in thunderclouds? This is difficult to answer - how do you measure electric fields inside large, dangerously charged clouds? It was discovered, more or less by coincidence, that cosmic rays provide suitable probes to measure electric fields within thunderclouds. This surprising finding is published in Physical Review Letters on April 24th. The measurements were performed with the LOFAR radio telescope located in the Netherlands.
How is lightning initiated in thunderclouds? This is difficult to answer - how do you measure electric fields inside large, dangerously charged clouds? It was...
Max Planck researcher Buhalqem Mamtimin determines how much nitrogen oxide is released into the atmosphere from agriculturally used oases.
In order to make statements about current and future air pollution, scientists use models which simulate the Earth’s atmosphere. A lot of information such as...
23.04.2015 | Event News
23.04.2015 | Event News
13.04.2015 | Event News
24.04.2015 | Materials Sciences
24.04.2015 | Materials Sciences
24.04.2015 | Health and Medicine