Navigation Links
Discards ban could impact seabird populations
Date:3/14/2013

The European Parliament recently voted to scrap the controversial discards policy, which has seen fishermen throwing thousands of edible fish and fish waste back into the sea because they have exceeded their quotas.

Scientists at Plymouth University believe this could have a negative impact on some seabirds, which have become used to following the fishing vessels and are increasingly reliant on their discards.

But they say others could return to using foraging as their sole source of food, as long as there are sufficient numbers of fish to meet their needs. Dr Stephen Votier, Associate Professor in Marine Ecology at Plymouth University, led a recent study examining seabirds' foraging habits. He said: "Policy changes can have unforeseen consequences, and the recent decision on the EU discards policy will pose challenges for a number of species. Many seabirds have come to rely to some extent on fishing vessels for food and globally, commercial capture fisheries generate huge quantities of discards. However, we believe there is a level of resilience among seabirds which means they will be able to overcome these challenges."

The Plymouth University study focused on populations of northern gannets on Grassholm Island, in Wales, with tiny cameras and GPS trackers being attached to birds to monitor their foraging habits.

The cameras captured more than 20,000 images, allowing scientists for the first time to analyse where the birds had flown to source food, precisely what they had fed on, and other details such as their sex and reproductive status.

The findings showed 42% of birds regularly targeted fishing vessels, as well as searching for naturally occurring prey, while a gender breakdown showed 81% of male gannets used fishing vessels to source food and 30% of female birds did so.

Dr Votier added: "We have used cutting-edge technology to reveal the private lives of seabirds at sea in this instance how they interact with fisheries and the findings suggest scavenging is more common in this species than previously thought. This suggests a discard ban may have a significant impact on gannet behaviour, particularly so for males. But a continued reliance on 'natural' foraging shows the ability to switch away from discards, but only if there is sufficient forage fish to meet their needs in the absence of a discard subsidy."


'/>"/>

Contact: Alan Williams
alan.williams@plymouth.ac.uk
44-175-258-8004
University of Plymouth
Source:Eurekalert

Related biology news :

1. Fertilizers could help tackle nutritional deficiency in African country, researchers say
2. New evidence that comets could have seeded life on Earth
3. New model could lead to improved treatment for early stage Alzheimers
4. New study could explain why some people get zits and others dont
5. Cell discovery could hold key to causes of inherited diseases
6. Top 10 ways biotechnology could improve our everyday life
7. Lessons from cockroaches could inform robotics
8. How human language could have evolved from birdsong
9. Scientists identify molecular system that could help develop treatments for Alzheimers disease
10. UCLA scientists develop new therapeutics that could accelerate wound healing
11. Artificial platelets could treat injured soldiers on the battlefield
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/18/2017)... Jan. 18, 2017 MedNet Solutions ... supports the entire spectrum of clinical research, is ... record-breaking year for the organization in terms of ... MedNet,s eClinical products and services. The company,s exceptional ... success of iMedNet ™ ...
(Date:1/12/2017)... and PUNE, India , January 12, 2017 ... Forecasts, 2015 - 2022," projects that the global biometric technology market is expected to ... 2016 to 2022. Continue Reading ... ...      ...
(Date:1/6/2017)... 5, 2017  SomaLogic announced today that it ... established by iCarbonX, the China ... "Global Digital Health Ecosystem that can define each ... individual,s biological, behavioral and psychological data, the Internet ... companies, SomaLogic will provide proteomics data and applications ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... 2017 Research and Markets has announced the ... Cancer Type, Application - Global Opportunity Analysis and Industry Forecast, 2014-2022" ... ... market is projected to reach $15,737 million by 2022 from $6,521 ... 2022. Omic technologies segment accounted for more than ...
(Date:1/19/2017)... and HOUSTON , ... ("NX Prenatal") today announced the formation of its ... leading clinicians and industry veterans who enhance the ... as it accelerates development of its novel prenatal ... provide medical, clinical and strategic guidance for the ...
(Date:1/19/2017)... 19, 2017 Research and Markets ... has announced the addition of the ... Forecast to 2025" report to their offering. ... The report provides a detailed analysis on current and future market trends ... using estimated market values as the base numbers Key ...
(Date:1/19/2017)... ... January 19, 2017 , ... ... software to leading biopharmaceutical and medical device manufacturers and regulators, is proud to ... CFR Part 11-compliant email client designed to provide product vigilance departments with the ...
Breaking Biology Technology: