Woods Hole Oceanographic Institution (WHOI) biologist Scott Gallager and colleagues have installed a package of sensors on the 235-foot freight ferry Katama to measure water quality and to photograph plankton as the ferry crisscrosses the western side of Nantucket Sound year-round, several times daily.
The WHOI team will be installing another instrument package on the Steamship Authority ferry Eagle, which runs between Hyannis and Nantucket on the eastern side of Nantucket Sound. Their objective is to build up a detailed, continuous portrait of changing water conditions and plankton communities in Nantucket Sound over long time scales.
Nantucket Sound is a triangular area of coastal ocean between Cape Cod, Martha’s Vineyard, and Nantucket and is known for its changing water conditions and diverse marine life. The cold south-flowing Labrador Current nearby collides with warm water in the relatively shallow Nantucket Sound, creating a perpetual front just inside the eastern Sound. As water shifts with the wind and the tides, warm-water and cold-water species are thrust into the same space. Waters loaded with nutrients, from septic systems and runoff along the developed Cape Cod coastline, also mingle in the Sound with North Atlantic waters that have far fewer nutrients.
Gallager studies plankton, the tiny and abundant swimming animals that serve as food for coastal fish and marine mammals. The numbers and proportions of different plankton in coastal oceans change with the seasons and ocean conditions, and Gallager is interested in the processes and their time scales that control those changes.
The availability of plankton can make the difference between healthy and undernourished stocks of commercial finfish and shellfish. Storms, nutrient runoff from coastal development, and the warming of coastal ocean waters could drastically alter the types of plankton that flourish in Nantucket Sound, and therefore the quantity and quality of food for fish, marine mammals, and ultimately people.
“A long-term archive of how conditions change in Nantucket Sound could provide an early warning about the health and function of coastal regions important to our economy and our quality of life,” Gallager said.
The Nantucket Sound Ferry Scientific Environmental Monitoring System project is supported by the Woods Hole Sea Grant program.
Shelley Dawicki | EurekAlert!
Upcycling 'fast fashion' to reduce waste and pollution
03.04.2017 | American Chemical Society
Litter is present throughout the world’s oceans: 1,220 species affected
27.03.2017 | Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
24.04.2017 | Physics and Astronomy
24.04.2017 | Materials Sciences
24.04.2017 | Life Sciences