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:4/13/2017)... MONICA, Calif. , April 13, 2017 ... New York will feature emerging and evolving ... Summits. Both Innovation Summits will run alongside the expo ... of speaker sessions, panels and demonstrations focused on trending ... coast,s largest advanced design and manufacturing event will take ...
(Date:4/11/2017)... GARDENS, Fla. , April 11, 2017 /PRNewswire/ ... management and secure authentication solutions, today announced that ... by Intelligence Advanced Research Projects Activity (IARPA) to ... IARPA,s Thor program. "Innovation has been ... and IARPA,s Thor program will allow us to ...
(Date:4/11/2017)... , April 11, 2017 No two ... researchers at the New York University Tandon School ... Engineering have found that partial similarities between prints ... used in mobile phones and other electronic devices ... The vulnerability lies in the fact that ...
Breaking Biology News(10 mins):
(Date:6/23/2017)... ... June 23, 2017 , ... ... aircraft flying hobbyists, and the University Aviation Association (UAA), the unifying voice for ... UAS4STEM Collegiate Challenge will encourage teamwork, competition, and success through a STEM-based education ...
(Date:6/22/2017)... ... 2017 , ... AESKU.GROUP, an innovation leader in autoimmune ... GmbH, thereby expanding its product portfolio to include allergy and food intolerance diagnostics. ... eczema or a food allergy. Allergies are escalating to epidemic proportions and becoming ...
(Date:6/22/2017)... Yorba Linda, Ca (PRWEB) , ... June 22, 2017 , ... ... labs worldwide. It took 20 years until the first data on cross-contamination of human ... cell lines has been an increasing issue in cell culture labs and is associated ...
(Date:6/20/2017)... Florida (PRWEB) , ... June 20, 2017 , ... Biologist ... in men. While researching her latest book, Men Chase, Women Choose: The Neuroscience of ... that love has a physiological effect on men. ”The logical next step, in my ...
Breaking Biology Technology: