Navigation Links
A shortcut to sustainable fisheries
Date:7/16/2012

The aim is straightforward: In 1982, more than 160 countries agreed to maintain the global fish stocks at levels that can produce the maximum sustainable yield (MSY) over a long term. This agreement is part of the United Nations Convention on the Law of the Sea (UNCLOS), which came into force in 1994 and which has been ratified by Germany and all other countries of the European Union. While the USA, Australia or New Zealand started to change their fishing policies on the basis of UNCLOS years ago, reforms in the EU only started in 2012.

One basic problem in fisheries reform is the specification of a reference point for sustainable management of fish stocks. "Until now one needs a long time series quantifying the total number of fish belonging to one stock", explains Dr Rainer Froese, fisheries scientist with GEOMAR | Helmholtz Centre for Ocean Research Kiel. For these stock evaluations, extensive and expensive research is necessary. Therefore, for many fish stocks, the MSY is still unknown. Now Dr Froese and Dr Steven Martell, biologist with the University of British Columbia in Vancouver (CA), have come up with a new, much simpler method to estimate MSY. They present it online in the international journal Fish and Fisheries.

"Instead of using the total number of fish in one stock we use catch data, which are available for most fish stocks", explains Dr. Froese. As a second type of data they use an estimate of the resilience of the species. "This is basic biological knowledge. For most species, it's available from FishBase, a global database with key information on all fish of the world", says Dr Froese. From the relationship between catch data and resilience, the two biologists calculate the MSY.

To test their new idea, Dr Froese and Dr. Martell applied it to 148 different fish stocks from all over the world, where earlier studies had already estimated MSY with conventional methods. "We found excellent agreement between our results and those achieved with the data-hungry standard methods", Froese emphasises.

The new method to estimate MSY also has an unexpected European Union dimension. On 12 June 2012 the EU agricultural ministers, who are also in charge of European fisheries, agreed to allow continued overfishing until 2020 for fish stocks where no sustainability reference points are available. This is currently the case for the majority of the European stocks. Such justification for high catch quotas may now have disappeared. As Rainer Froese puts it: "Lack of reference points can no longer be used as an excuse for lack of management."


'/>"/>

Contact: Jan Steffen
jsteffen@geomar.de
Helmholtz Centre for Ocean Research Kiel (GEOMAR)
Source:Eurekalert

Related biology news :

1. Beating famine: Sustainable food security through land regeneration in a changing climate
2. Maryland gets its first Certified Sustainable community: Berlin
3. Ancient civilizations reveal ways to manage fisheries for sustainability
4. DNA evidence shows that marine reserves help to sustain fisheries
5. SFU scientists engage Science in fisheries debate
6. How to make global fisheries worth 5 times more: UBC research
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/17/2016)... , Nov. 17, 2016  AIC announces that it has just released a new ... that require high-performance scale-out plus high speed data transfer storage solutions. Photo ... ... ... Setting up a high performance computing ...
(Date:11/14/2016)... Fla., Nov. 14, 2016  xG Technology, Inc. ("xG" ... providing critical wireless communications for use in challenging operating ... September 30, 2016. Management will hold a conference call ... 5:00 p.m. Eastern Time (details below). Key ... a $16 million binding agreement to acquire Vislink Communication ...
(Date:6/22/2016)... , June 22, 2016   Acuant ... and verification solutions, has partnered with RightCrowd ... solutions for Visitor Management, Self-Service Kiosks and ... products that add functional enhancements to existing ... corporations and venues with an automated ID ...
Breaking Biology News(10 mins):
(Date:12/5/2016)... According to the new ... (Consumable, Instruments, Automated Cell Expansion System), Cells Types ... Research, Cancer, and Cell-Based Research), End-users (Biopharmaceutical and ... Revenue, Trends, Growth, Share, Size and Forecast to ... cell expansion market is expected to reach USD ...
(Date:12/5/2016)... N.J. , Dec. 5, 2016  Eisai ... 3 open-label two-year study of rufinamide, which were ... American Epilepsy Society (AES) held from December 2-6 ... of final two-year safety, tolerability and cognitive data ... rufinamide experienced similar safety and tolerability profiles, cognitive ...
(Date:12/4/2016)... CA (PRWEB) , ... December 03, 2016 , ... ... to ground-breaking microbiome studies. A microbiome impact grant award has been made to ... effect of heavy smoking and drinking on the oral microbiome. Grant proposals have ...
(Date:12/2/2016)... 2, 2016 More than $4.3 million was raised ... ( DHMD ). The gala was held at the American ... City and honored Alan Alda and ... health and medicine and the public understanding of science. Since ... the event has raised $40 million for the Laboratory,s research ...
Breaking Biology Technology: