"We found that if you have the key spatial (location) information on fish, you can put the Marine Protected Areas in the right places, thus increasing conservation and making the fisheries more profitable," said Christopher Costello, economist and professor with UC Santa Barbara's Bren School of Environmental Science & Management.
Information on fish, from spawning habits to oceanographic models that show currents, gives the experts the data needed for both conservation and increased fishing, according to Costello, who published an article on the topic this week in the Proceedings of the National Academy of Sciences.
"You can have conservation and increased fisheries at the same time," he said. "That will be surprising to a lot of people. We tend to think that it's either the economy or the environment and that you can't have both. This is a case where you can have both, but you need that spatial information in order to achieve it."
Costello has served on two recent Science Advisory Teams for the development of California's Marine Protected Areas (MPAs), and is now on a third team, for the design of MPAs in Northern California. The state is in the process of developing MPAs from Point Conception south to the Mexican border. Northern MPAs will be next.
He explained that he and his team of co-authors studied the location of fish by looking at what ecologists call "sources" and "sinks." In source areas, the ocean is very productive and lots of fish spawn there. Larvae are produced and they are swept over to the sink and never leave.
"What you'd really like to do is close the source to fishing and only fish in the sink," said Costello. "It turns out you get a much higher economic value and much better conservation when you do that. But if you don't know where the sources and sinks are, you can't do that, so that is where the information comes in."
He explained that in Southern California the experts have that information and are using it to set up the new MPAs. "However, in many parts of the world, we don't yet have the information," said Costello. "Until this article came out, there was a vague idea that yes, we want better information –– but it wasn't clear why or how we would use it."
The article asserts, "spatial information has the potential to change management approaches."
Co-authors on the paper are: Andrew Rassweiler, postdoctoral fellow with UCSB's Marine Science Institute; David Siegel, professor with UCSB's Institute for Computational Earth System Science; Giulio De Leo, with the Universita degli Studi di Parma, Parma, Italy; Fiorenza Micheli, with the Hopkins Marine Station, Pacific Grove, Calif.; and, Andrew Rosenberg, with the Institute for the Study of Earth, Oceans and Space Ocean Processes and Analysis Laboratory, University of New Hampshire.
Gail Gallessich | EurekAlert!
Successful calculation of human and natural influence on cloud formation
04.11.2016 | Goethe-Universität Frankfurt am Main
Invasive Insects Cost the World Billions Per Year
04.10.2016 | University of Adelaide
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...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water
In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
05.12.2016 | Power and Electrical Engineering
05.12.2016 | Materials Sciences
05.12.2016 | Power and Electrical Engineering