"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!
Dispersal of Fish Eggs by Water Birds – Just a Myth?
19.02.2018 | Universität Basel
Removing fossil fuel subsidies will not reduce CO2 emissions as much as hoped
08.02.2018 | International Institute for Applied Systems Analysis (IIASA)
Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...
For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.
But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...
Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.
The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...
15.02.2018 | Event News
13.02.2018 | Event News
12.02.2018 | Event News
22.02.2018 | Life Sciences
22.02.2018 | Physics and Astronomy
22.02.2018 | Earth Sciences