A new report released today by the University of Victoria ranks eco-labels intended to distinguish seafood produced with less damage to the environment. It is the first study to evaluate how eco-labels for farmed marine fish compare to unlabeled options in the marketplace.
"How Green is Your Eco-label?" is designed to help seafood buyers sort through competing sustainability claims and better identify those labels that result in farming methods with less damage to the ocean. Key findings include:"Organic" labels lead the pack, although a few fall noticeably short;
"Our research shows that most eco-labels for farmed marine fish offer no more than a 10 percent improvement over the status quo," said John Volpe, Ph.D., a marine ecologist at the University of Victoria and lead author of the report. "With the exception of a few outstanding examples, one-third of the eco-labels evaluated for these fish utilize standards at the same level or below what we consider to be conventional or average practice in the industry."
Supported by the Pew Environment Group, the study, which was reviewed by several independent experts, uses a well-established quantitative methodology derived from the 2010 Global Aquaculture Performance Index (http://www.gapi.ca) to determine numerical scores of environmental performance for 20 different eco-labels for farmed marine finfish, such as salmon, cod, turbot, and grouper. These scores were used to rank performance among the various eco-labels. The assessment did not look at eco-labels for freshwater farmed fish, such as tilapia or catfish.
The authors used 10 environmental factors to assess the eco-labels, including antibiotic use, the ecological effect of farmed fish that escape from pens, sustainability of the fish that serve as feed, parasiticide use, and industrial energy needed in aquaculture production.
"Eco-labels can help fish farmers produce and consumers select environmentally preferable seafood, but only if the labels are based on meaningful standards that are enforced," said Chris Mann, director of Pew's Aquaculture Standards Project. "Seafood buyers at the retail or wholesale level should demand that evidence of sustainability be demonstrated, not merely asserted."
The report concludes that government policies and regulations, as well as effective eco-labels, are necessary to limit the environmental impacts of production.
The Pew Environment Group is the conservation arm of The Pew Charitable Trusts, a non-governmental organization that works globally to establish pragmatic, science-based policies that protect our oceans, preserve our wildlands, and promote clean energy. http://www.PewEnvironment.org
Statistical method developed at TU Dresden allows the detection of higher order dependencies
07.02.2020 | Technische Universität Dresden
Novel study underscores microbial individuality
13.12.2019 | Bigelow Laboratory for Ocean Sciences
The operational speed of semiconductors in various electronic and optoelectronic devices is limited to several gigahertz (a billion oscillations per second). This constrains the upper limit of the operational speed of computing. Now researchers from the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg, Germany, and the Indian Institute of Technology in Bombay have explained how these processes can be sped up through the use of light waves and defected solid materials.
Light waves perform several hundred trillion oscillations per second. Hence, it is natural to envision employing light oscillations to drive the electronic...
Most natural and artificial surfaces are rough: metals and even glasses that appear smooth to the naked eye can look like jagged mountain ranges under the microscope. There is currently no uniform theory about the origin of this roughness despite it being observed on all scales, from the atomic to the tectonic. Scientists suspect that the rough surface is formed by irreversible plastic deformation that occurs in many processes of mechanical machining of components such as milling.
Prof. Dr. Lars Pastewka from the Simulation group at the Department of Microsystems Engineering at the University of Freiburg and his team have simulated such...
Investigation of the temperature dependence of the skyrmion Hall effect reveals further insights into possible new data storage devices
The joint research project of Johannes Gutenberg University Mainz (JGU) and the Massachusetts Institute of Technology (MIT) that had previously demonstrated...
Researchers at Chalmers University of Technology, Sweden, recently completed a 5-year research project looking at how to make fibre optic communications systems more energy efficient. Among their proposals are smart, error-correcting data chip circuits, which they refined to be 10 times less energy consumptive. The project has yielded several scientific articles, in publications including Nature Communications.
Streaming films and music, scrolling through social media, and using cloud-based storage services are everyday activities now.
After helping develop a new approach for organic synthesis -- carbon-hydrogen functionalization -- scientists at Emory University are now showing how this approach may apply to drug discovery. Nature Catalysis published their most recent work -- a streamlined process for making a three-dimensional scaffold of keen interest to the pharmaceutical industry.
"Our tools open up whole new chemical space for potential drug targets," says Huw Davies, Emory professor of organic chemistry and senior author of the paper.
12.02.2020 | Event News
16.01.2020 | Event News
15.01.2020 | Event News
19.02.2020 | Life Sciences
19.02.2020 | Information Technology
19.02.2020 | Power and Electrical Engineering