Fewer fish discarded after individual transferable quotas offered

Contradicting previous assumptions, new fisheries research shows that allocating catch among vessels reduces the amount of fish discarded at sea.

The study in Canada's British Columbia waters compared so-called individual transferable quotas with a previously used system of trip limits where vessels are only allowed to land a certain quantity of each species every two months.

The findings come at a time when individual transferable quotas are being considered for the west coast of the United States.

"Economic models have assumed all along that individual transferable quotas increase discards," says Trevor Branch, who earned his doctorate in aquatic and fishery sciences at the University of Washington and is lead author of an article published online this week by the journal Marine Policy.

But discards did not increase they declined for most species, report Trevor and co-authors Kate Rutherford, biologist with Fisheries and Oceans Canada in British Columbia, and Ray Hilborn, UW professor of aquatic and fishery sciences.

The study, "Replacing Trip Limits with Individual Transferable Quotas: Implications for Discarding," is the first to look at 35 species instead of only a handful, or even just a single species, before and after quotas were implemented.

With individual transferable quotas, the total allowable catch is divided among a limited number of boats with each quota holder receiving a specific proportion of the total catch. Quota holders then decide how and when to fish, and whether to buy additional quotas or lease or sell their quotas.

Such a system was implemented in British Columbia waters in 1997, after a one-year transition from individual trip limits and overall caps on the fleet. After a period of adjustment, rates have remained generally similar or even less than the 15 percent of fish discarded in 1996.

Discarding occurs when, for example, unmarketable fish are caught or where trip limits are imposed and

Contact: Sandra Hines
University of Washington

Page: 1 2 3

Related biology news :

1. Fewer fish eggs, smaller fish result from over-fishing
2. Fewer wrinkles and firmer skin linked to earlier use of estrogen therapy
3. Fewer calories may slow Alzheimers
4. Study suggests estrogen deficiency can lead to obesity-induced high blood pressure after menopause
5. Brains hearing center may reorganize after implant of cochlear device
6. Expert to provide update after worst tomato virus hits California
7. Losing weight after pregnancy -- diet and exercise better than diet alone
8. Cardiac patches stimulate regeneration, improve function after heart attack
9. Nodal status is best predictor of outcome after neoadjuvant therapy for esophageal cancer
10. First baby is born after oocytes were matured in the lab and frozen
11. Marker predicts pancreatic cancer outcome after surgery, Jefferson surgeon finds

Post Your Comments:

(Date:5/23/2017)... robotic gym for the rehabilitation and functional motor sense evaluation of lower ... . The first 30 robots will be available from June in ... The technology was developed and patented at the IIT laboratories and has ... to a 10 million euro investment from entrepreneur Sergio Dompè. ... ...
(Date:4/24/2017)... 24, 2017 Janice Kephart , ... Identity Strategy Partners, LLP (IdSP) , today issues ... President Trump,s March 6, 2017 Executive Order: ... vetting can be instilled with greater confidence, enabling ... all refugee applications are suspended by until at ...
(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 ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... ... , ... Dr. Bob Harman, founder and CEO of VetStem Biopharma, Inc. ... The event entitled “Stem Cells and Their Regenerative Powers,” was held on August ... MPVM was joined by two human doctors: Peter B. Hanson, M.D., Chief of Orthopedic ...
(Date:10/10/2017)... , Oct. 10, 2017 SomaGenics announced the ... NIH to develop RealSeq®-SC (Single Cell), expected to be ... small RNAs (including microRNAs) from single cells using NGS ... the need to accelerate development of approaches to analyze ... "New techniques for measuring levels of mRNAs ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... 13 prestigious awards honoring scientists who have made outstanding contributions ... scheduled symposium during Pittcon 2018, the world’s leading conference and exposition for laboratory ...
(Date:10/9/2017)... ... ... The award-winning American Farmer television series will feature 3 Bar Biologics in ... 8:30aET on RFD-TV. , With global population estimates nearing ten billion people by ... feed a growing nation. At the same time, many of our valuable resources are ...
Breaking Biology Technology:
Cached News: