Cautious fish evolve out of marine reserves

Photo by Matana_and_Jes, Flickr

Photo by Matana_and_Jes, Flickr

New research supports the creation of more marine reserves in the world’s oceans because, the authors say, fish can evolve to be more cautious and stay away from fishing nets.

The research suggests that by creating additional “no-take” areas, some fish will stay within marine reserves where they are protected from fishing. While other fish will move around the ocean, these less mobile fish will continue to live in the protected areas, pass this behaviour on to their offspring, and contribute to future generations, increasing the overall stock.

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Millions of tonnes of prime fish off limits to humans

Every year for the past 60 years, an average of 20 million tonnes of fish caught in the global ocean have not been used to nourish people.

A new study emerging from the Sea Around Us project at the University of British Columbia’s Institute for the Oceans and Fisheries reveals that from 1950 to 2010, 27 per cent of commercial marine landings were diverted to uses other than direct human consumption.

This trend has not changed in recent years and it poses serious questions regarding food security, as most of the diverted fish are classified as food-grade or prime food-grade.

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Sea Around Us study finds 30 per cent of global fish catch is unreported

Fish basket on head
Countries drastically underreport the number of fish caught worldwide, and the numbers obscure a significant decline in the total catch .

The new estimate, released today in Nature Communications, puts the annual global catch at roughly 109 million metric tons, about 30 per cent higher than the 77 million officially reported in 2010 by more than 200 countries and territories. This means that 32 million metric tons of fish goes unreported every year, more than the weight of the entire population of the United States.

Researchers led by the Sea Around Us, a research initiative at the University of British Columbia supported by The Pew Charitable Trusts, and Vulcan Inc., attribute the discrepancy to the fact that most countries focus their data collection efforts on industrial fishing and largely exclude difficult-to-track categories such as artisanal, subsistence, and illegal fishing, as well as discarded fish. Continue reading

Only four per cent of the ocean is protected: Sea Around Us research

Small Island

Photo by: Azrul Aziz

Despite global efforts to increase the area of the ocean that is protected, only four per cent of it lies within marine protected areas (MPAs), according to new research.

Sea Around Us scientists Lisa Boonzaier and Daniel Pauly found that major swaths of the ocean must still be protected to reach even the most basic global targets.

In 2010, representatives from nearly 200 countries met in Nagoya, Japan, and adopted the United Nations’ Aichi Targets, in a bid to stem the rapid loss of biodiversity. The countries committed to protecting at least 10 per cent of the ocean by 2020.

“The targets call for much more than just 10 per cent protection,” said lead author Ms. Boonzaier. “They require that protected areas be effectively and equitably managed, ecologically representative and well-connected, all of which will help to ensure that MPAs contribute to more than percentage targets and meet the goal of conserving biodiversity.”

In the past decade, however, some improvement has been made. In 2006, only an estimated 0.65 percent of the ocean was protected.

“Given the creation of very large marine protected areas in recent years, notably though the Global Ocean Legacy Project of the Pew Charitable Trusts, there is a chance that the Aichi Targets can be reached, which would be a major achievement,” said  Daniel Pauly, co-author of the paper and director of the Sea Around Us.

The research is published in the journal Oryx.

For more information, see http://www.pewtrusts.org/en/projects/global-ocean-legacy

Dr. Daniel Pauly participates in White House science forum

Dr. Daniel Pauly at a White House event on citizen science.

Dr. Daniel Pauly at a White House event on citizen science.

Last week Dr. Daniel Pauly was invited to the White House to participate in a forum on citizen science and crowdsourcing.

The event, held on September 30, 2015, and hosted by the White House Office of Science and Technology Policy (OSTP), and the Domestic Policy Council, aimed to “celebrate the successes of citizen science and crowdsourcing,” and “raise awareness of the benefits these innovative approaches can deliver,” according to the White House website.

Dr. Pauly was there to discuss FishBase, the global database of fish he co-founded in the 1990s that is now the largest and most accessed online database for fish in the world. Each month it receives 50 million “hits” from over half a million unique viewers.

While experts initiated the database, it functions, in large part, from the input of thousands of citizen users.

“Much of the data sets in FishBase were initiated by communities from the bottom up, and then later, were picked up by academics,” said Dr. Pauly in an interview.

FishBase includes descriptions of over 33,000 species, and over 300,000 common names in almost 300 languages, 55,300 pictures, and references to 51,600 works in the scientific literature.

“FishBase has gathered a lot of data from its users—from photos, common names, forums and blogs. There is a huge openness of the database, and it is going to increase” said Dr. Pauly.

The forum, which was titled “Open Science and Innovation: Of the people, by the people, for the people,” highlighted the work of several other innovative citizen science endeavours.

For instance, 28,000 astronomy enthusiasts have made 1.4 million classifications of potential interstellar debris using NASA’s Wide-field Infrared Survey Explorer; and 5,500 active participants have helped record over 1.5 million observations related to plants and animals for the USA National Phenology Network, leading to contributions in 17 peer-reviewed publications.

“Citizen science and crowdsourcing projects can enhance scientific research and address societal needs, while drawing on previously underutilized resources,” said the Assistant to the President for Science and Technology, John P. Holdren, in a memorandum.

Drawing on his experience with FishBase, Dr. Pauly agrees. “Governments are realizing they cannot progress in many areas without citizen participation. The idea of citizen science is not only compatible with democracy and the environmental sciences; it is essential for them,” he said.

A complete video of the event can be found here.

Links to Facebook pages for FishBase, and its partner organization SeaLifeBase.