Ecology and Policy Blog

Archive for the ‘Marine’ Category

MSC report shows progress towards more sustainable seafood consumption

Thursday, February 2nd, 2012

Figures due to be released by the Marine Stewardship Council show that the number of fish and seafood products in the UK certified as ’sustainable’ has increased by 41% since 2010.

What fisheries minister Richard Benyon has described as a ’seismic shift’ in people’s attitudes towards the fish they eat has led to a significant increase in consumer demand for seafood products bearing the MSC logo. This certification ensures that products have come from sustainable fish stocks where fishing rates are controlled below the rate of replenishment so the population is not depleted. This move towards more sustainable fish consumption is welcome as currently, 85% of fish stocks globally are exploited to their maximum capacity or overfished.

Upcoming reforms of the EU common fisheries policy are also hoped to contribute to the protection of dwindling fish populations by changing EU fishing practices.

Ocean acidification: a policy gap to address at Rio+20?

Wednesday, January 25th, 2012

A study due to be published in Nature Climate Change journal (released to press) suggests that the current rate of ocean acidification, caused by increasing levels of atmospheric carbon dioxide, could be up to two orders of magnitude greater than that at the end of the last Ice Age. This has serious implications for ocean ecology, contributing to the ‘bleaching’ of coral reefs as well as apparent physiochemical effects on fish.

However, despite the severity of its potential impact, ocean acidication is relatively poorly covered in international policy. It had not yet emerged as an issue when the United Nations Framework Convention on Climate Change was established in 1992 and, consequently, is absent from its contents. Meanwhile most treaties concerning the ocean focus on matters such as shipping access, fisheries and localised pollution.

The upcoming Rio+20 conference could provide an important platform to redress this policy gap and actors including Unesco’s International Oceanographic Commission are pushing for ocean acidification to be made a priority issue on the agenda. The first draft of the conference agenda – the ‘zero draft’ – is available to view online.

Text based on original article by Richard Black, Environment Correspondent for the BBC

Plans unveiled for 127 Marine Conservation Zones in England’s waters

Thursday, September 8th, 2011

Plans have been unveiled today for 127 Marine Conservation Zones in England’s waters, enacting a requirement of the 2009 Marine and Coastal Access Act. Four regional projects have engaged stakeholders from local communities, industry and the Government over the past two years in order to develop these proposals, which now go forward to an independent panel for assessment.

The ultimate aim of the four regional projects is to create an ecologically coherent network of marine protected areas which will protect scarce species, geological sites and significant heritage sites, whilst also safeguarding species representative of biodiversity in England. The final network will cover 37,000 sq km, or almost a quarter of England’s waters.

The Marine Protected Area Science Advisory Panel will examine the proposals and in October will provide an assessment of the extent to which the resulting composite network of MCZs will achieve the goal of ecological coherence. The Government will then make a final decision on the final location of sites in 2012.

The Guardian is reporting this morning that although no decision has yet been made about the activities which will be allowed or prohibited within each site, it is likely that only 20 sites will receive a high degree of protection, meaning that all extractive or damaging activities will be prohibited. However, the article also suggests that half of the sites designated will include highly protected areas within them.

Meanwhile, Dogger Bank has become the largest marine protected area in Europe after the Government put this forward to the European Commission for consideration the site’s subsequent designation as a ‘candidate Special Protected Area’. The site is the largest sandbank in UK waters and is home to significant populations of sand eels, which provide a food resource for seabirds, cetaceans and other commercial fish species, such as cod. The UK site links up with Special Protected Areas already designated in German and Dutch waters.

Original articles:
BBC News, Marine Protection Bids Unveiled (Richard Black)
Guardian, 127 areas to be proposed as English marine conservation zones (John Vidal)

Scotland launches marine survey

Monday, August 15th, 2011

Scottish government has announched that eight surveys covering 2,200 square miles will be conducted in Scottish waters in order to collect information on its marine biodiversity. The surveys are in collaboration with Marine Scotland and the Scottish Environment Protection Agency (SEPA) and will utilise video and acoustic recordings to create underwater maps and improve understanding of marine species and habitats found in Scotland.

The findings will be used to inform future plans for the designation of effective Marine Protected Areas (MPA’s), as well as provide further information on fish stocks and potential sites for renewable energy.

Richard Lochhead MSP Cabinet Secretary for Rural Affairs and the Environment said of the new study; “Scotland’s seas provide rich marine habitats and a stunning array of biodiversity. Our waters are home to some of the world’s most precious wildlife, therefore it’s critical that we further our knowledge as much as we can”.

Highlighting Research from the World’s Largest Marine Protected Area

Friday, July 29th, 2011

A meeting at the Linnean Society on 24th November 2011 will unveil the highlights from a decade of research into the Chagos Archipelago; the world’s largest marine protected area (MPA). Organised in partnership with the Chagos Conservation Trust and supported by the Pew Environment Group, this one-day meeting will explore the ecology of the Chagos and the importance of safeguarding the archipelago from the damaging impacts of over-fishing and over-exploitation.

Professor Charles Sheppard, who works part-time at the University of Warwick and for the remainder as an advisor to the UN and Government on tropical marine ecology and conservation, is the lead organiser for the meeting and will oversee a programme of invited speakers discussing varied topics; from how to monitor fish populations in the Chagos to the way ahead for the management of the MPA.

Further information is available from the website of the Linnean Society.

Discards are discarded in the reform of the Common Fisheries Policy

Monday, July 11th, 2011

The European Commission is expected to announce a ban on discards during Wednesday this week as part of the reform of the Common Fisheries Policy (CFP). The shake-up brings victory for TV chef, Hugh Fearnley-Whittingstall who fronted the Big Fish Fight campaign along with a number of other celebrity chefs including Gordon Ramsey, and Heston Blumenthal. The campaign gained over 700,000 signatures of support and was backed by London’s Selfridges in a bid to raise awareness about the increasing decline of ocean fish stocks.

Currently under the CFP, fishermen are forced to throw back millions of tonnes of dead fish, known as discards, into the sea each year in order to meet legal quotas on size and species. The quotas cause up to 80% of catches to be discarded including edible and often endangered species in order to meet the current rules. Such unsustainable practice has been blamed for the severe decline in North Sea fish stocks which have plummeted to less than 10% of post-war levels, driving species such as Cod and Haddock to breaking point.

The reform will see the end of such wasteful methods with the scrapping of discards. The new plans are also expected to adopt a more scientific approach to the management of fish stocks, with the aim to limit catches to a sustainable level by 2015. Following the announcement, MEP’s will have a year to consult on the plans before they become legislation in 2012. The Commission admits that the reform – which is the biggest in 40 years, will mean some job losses. Yet they argue that the cost of no action will be far greater, and state support will be given to those affected.

The state of our oceans

Tuesday, June 21st, 2011

A panel of scientists has today concluded that the planets oceans are in an even worse state that previously considered, with some referring to the results as “shocking”.

The report, written by experts on coral reefs, fisheries, climate and pollution that form the International Program on the State of the Ocean (IPSO) concludes that ocean life is “at high risk of entering a phase of extinction of marine species unprecedented in human history”. The reason for this decline in marine life is human induced climate change, pollution and over-fishing.

“What we’re seeing at the moment is unprecedented in the fossil record” said Alex Rogers, Scientific Director of the IPSO and Professor of conservation biology at Oxford University. In the past, mass extinctions took place over millions of years, not overnight as often perceived. The rate of decline seen today exceeds the speed at which the previous 5 mass extinctions took place, which some say indicates that we are now moving into a 6th period of mass extinction. The report concludes that is too early to say definitively that this is the case, but warns that current trends indicate that such a situation is likely to occur in the future.

The report presented to government at the UN headquarters in New York later this week during discussions on the reform of ocean governance. The publication will recommend three main changes to marine policy:

1. Making swift reductions in green house gas emissions
2. Reducing the input of pollutants
3. Bringing a stop to exploitative fishing

Pressures to implement action are supported both economically and in terms of human welfare. At present, coral reefs are estimated to be worth millions through tourism and for sea-defense, but 75% are at risk of severe decline. While a huge 70% of the world’s population reply on fish as their main source of protein, yet 50% of fisheries still remain classified as unsustainable in the UK alone.

Report contributor Dan Laffoley, an advisor to the International Union for the Conservation of Nature (IUCN) however remained positive, saying that “unlike previous generations, we know what now needs to happen”.

Can Aquaculture have a sustainable future?

Wednesday, June 15th, 2011

Aquaculture is the fastest growing food production sector but there is still a great deal of uncertainty surrounding it’s environmental impact and how this is likely to change into the future as the sector expands to meet global food demands. A new report published by Conservation International and the WorldFish Centre investigating the aquaculture sector has identified some of the challenges in ensuring that the sector minimises adverse impacts on biodiversity and ecosystem services whilst maintaining high growth to respond to global food shortages as population size increases.

The UN Food and Agriculture Organisation estimate that around 84% of the world’s fish stocks are already over exploited indicating that fisheries will not be able to meet the protein demands of a rapidly growing population. Fish farming is becoming increasingly common (the sector has grown by 8.4% per annum since 1970) particularly in Asia and Africa, and now accounts for around half of all the fish we consume reducing pressure on natural fish stocks.

To identify the main sources of environmental damage in the industry and establish opportunities for increasing sustainability into the future the researchers investigated several different methods of aquaculture, measuring their inputs (fertilizers, energy, land and water) and outputs (carbon dioxide, nitrogen, and phosphorus) and then estimated the impact of the enterprise on ecosystems and biodiversity (acidification, eutrophication, and climate change).

Perhaps unsurprisingly the enterprises producing the largest quantity of fish had the highest environmental impact. The type of fish reared also has implications for the sustainability of the fishery, for example rearing carnivorous fish such as salmon and rearing shrimps and prawns which are highly dependent on temperature control decreases the efficiency of the enterprise and increases emission of nitrogen and green house gases. Seaweeds, oysters and mussels were found to have the lowest environmental impact.

A comparison between sectors was also included in the report, showing that aquaculture has a much smaller demand on fresh water and energy than poultry, pig and cattle farming, and has lower outputs of carbon, nitrogen and phosphorus.

By 2030 the sector is expected to double in size, producing 110 million tonnes of fish and seafood and the associated environmental impact is also expected to double. The report makes a series of research and policy recommendations to ensure that the sector is sustainable in the future, whilst simultaneously meeting the global demand for meat.

These include research into innovative methods to increase sustainability and improve efficiency, establishing regional networks to help improve efficiency in developing countries and promote best practice, and a variety of legislative measures to monitor the sector and promote compliance with environmental standards. The report also emphasises the importance of preventing new enterprises from establishing in important carbon sinks such as mangrove swamps

The report suggests that aquaculture may be the best solution to the global demand for meat as requirements for energy water and land are only a fraction of that for pig, cattle and poultry farming. Aquaculture will most likely be able to produce the most meat for the least demand on ecosystems, and the report indicates that fish farming should be promoted in policy to slow expansion of the other meat production sectors.

EU takes bold new action on illegal fishing

Thursday, April 21st, 2011

Spanish officials today seized over £4 million worth of illegally caught fish landed in the Canary Islands. It is thought the move is the start of a new EU scheme to prevent to deter and eliminate illegal, unreported and unregulated fishing after new regulations were introduced last year. The fish seized, weighing over 1100 tonnes, were destined for sale in Europe.

Illegal fishing of the coast of West Africa is a serious problem for local people, who rely on fishing for employment and as a source of protein. EU officials estimate that Sierra Leone loses around $29 million per year as a result of illegal fishing. Declines in fish stocks can increase pressure on other natural resources such as bush meat. Environmental Justice Foundation, the organisation to which the illegal fishing was first reported, said that the EU needs to take more responsibility for policing it’s waters. Among the species illegally caught were octopus, squid, sole, shrimp, and grouper some of which are known to be endangered or have depleted stocks.

Three boats involved in the illegal fishing, owned by South Korea, Panama, and China, were apprehended in the port of Las Palmas. Fish were taken from waters off the coast of Sierra Leone which are reserved for use by local fishermen under international fishing agreements. Other allegations were also made against the vessels, including use of child labour, damage to the local fishermen’s equipment, and even assault. EU officials noted that illegal fishing often goes hand in hand with other criminal activities.

This move is the most drastic action the European Union has ever taken on illegal fishing and a second strike is planned for later this year. Europe is currently investigating the activities of over 70 vessels from both member states and other countries. If vessels are found to be involved in illegal fishing they can be banned from landing fish in any European port, excluding them from the world’s biggest market for fish. Europe is also demanding answers from the Panamanian authorities who provided certificates to show that the fish landed were caught within international fishing agreements which protect certain areas for use by local fishermen.

See Fish worth £4m seized in EU crackdown on illegal fishing by Robert Booth for more information.

“If we want coral reefs by 2050, we have to do something about carbon dioxide”

Thursday, February 24th, 2011

So says Nancy Knowlton, chair of Marine Sciences at the Smithsonian, in an article for the Guardian by Suzanne Goldenberg. A new report from the World Resources Institute “Reefs at Risk Revisited” suggests that three-quarters of the world’s coral reefs are at risk from overfishing, pollution and climate change.

The report serves as an update to the 1998 publication “Reefs at Risk”- the first global, quantitative assessment of threats to coral reefs ever conducted. Since this initial report, the threat posed to reefs worldwide from climate change has grown. Reefs are threatened by a combination of local pressures – such as overfishing, particularly in the Indian and Pacific Oceans where aggressive dynamite fishing has left reefs in a parlous state – and global stressors. An increase in the concentration of carbon dioxide in the atmosphere, and therefore in the sea, is leading to ocean acidification which prevents corals from laying down their calcium-rich exoskeletons, and increases in temperature which are killing the photosynthetic unicellular algae (’zooxanthellae’) which make it possible for coral to survive. Such coral ‘bleaching’ is becoming more widespread.

If climate change is not addressed, virtually all of the world’s coral reefs will be in danger by 2050. However the report gives reasons for optimism, suggesting in particular that Marine Protected Areas can prove a useful tool in coral conservation. Dr Mark Spalding, Nature Conservancy, based in Cambridge, UK, says that “Well managed marine protected areas are one of the best tools to safeguard reefs…At their core, reefs are about people as well as nature: ensuring stable food supplies, promoting recovery from coral bleaching, and acting as a magnet for tourist dollars. We need to apply the knowledge we have to shore up existing protected areas, as well as to designate new sites where threats are highest, such as the populous hearts of the Caribbean, Southeast Asia, East Africa and the Middle East”.

The report provides additional information to policy-makers, business leaders, ocean managers, and others which can aid them in developing means to better manage coral reefs and to ensure that the threats they face are adequately tackled. Speaking at the launch of the report in the U.S., Dr Jane Lubchenco, of the National Oceanic and Atmospheric Adminstration (NOAA), and under secretary of commerce for oceans and atmosphere under President Barack Obama, commented that “It will take a Herculean effort to reverse the current trajectory and leave a healthy ecosystem to our children and grandchildren”.

profile

"Specialist groups facilitate essential interactions between researchers and practitioners, impossible without BES support." Rob Francis Invasive Species Group

"The BES is an engaged society"

Become a member and take advantage of all the member benefits including journals, discounts, bulletins and much more!Apply NowRenew

Already a member?

Come in to access the forums, network with other members, apply for grants and more!

Support the charitable aims of the Society.