News / Asia

    Farmed Fish Feed More, Pollute Less

    WorldFish Center, a private advocacy group, says sustainable seafood holds the key to global food needs

    The growth in farmed fish has significantly outpaced growth in world population China supplying 61.5% of the global market.
    The growth in farmed fish has significantly outpaced growth in world population China supplying 61.5% of the global market.

    Multimedia

    Audio
    Rosanne Skirble

    Farmed fish, if raised sustainably, can help feed the world, according to a report by the WorldFish Center, a private group that advocates sustainable fishing.    

    As overfishing continues to deplete ocean fish populations, farmed fish have stepped in to fill the gap.  The report, presented at a conference in Thailand, finds the industry has grown at such a rapid pace that it now supplies nearly half the fish eaten on the planet.  

    It compares farming practices and fish species across 18 countries.  WorldFish director general and report author Stephen Hall says it answers some basic questions “What works best?  What’s most efficient?  Which things do we need to pay most attention to when we try and think about improving the environmental performance of a very important food production sector?”

    Ninety-one percent of farmed fish come from Asia, with China alone accounting for more than 61 percent of that production. Hall says from country to country, and across a range of production systems and fish species, the environmental impact of aquaculture varies widely.

    “And that tells us that that there are huge opportunities for the best to learn from the worst and reduce the environmental impact across the globe.”

    That impact can be considerable. Waste from poorly managed aquaculture ponds can pollute ground and coastal waters, and certain carnivorous species like salmon must be fed products made from other fish, like oil and meal - meaning continued pressure on wild fish populations.

    While Asia dominates aquaculture production, fish farms are common across the globe as in this operation in Egypt. (Jamie Oliver)

    The report finds that shrimp and prawn production methods in China had a greater impact on the environment than the methods used in Thailand or Vietnam. Hall notes that other marine species are more ecologically friendly.

    “One of the real ‘good guys’ in this are the bivalves, the oysters and the mussels, which actually take up nutrients and actually remediate and improve the environment as one grows more of them.”

    While the report did not look at the impact of farmed fish on wild fish populations or on disease, it did find that when comparing the impact on climate change, land use and energy demand, aquaculture fared much better ecologically than livestock. Consider, says Hall, that it takes 61 kilograms of grain to produce one kilogram of beef protein, while the ratio for fish protein is only 13 to one.  

    “And so when we make these decisions on what we eat and how we manage our environment and the resources we use to produce our food, fish are an important part of that equation because they are in the animal source food area, one of the groups that is particularly attractive for developing further.”

    This Malawi fish farmer uses his pond waste water to irrigate his maize crop and boost his income.
    This Malawi fish farmer uses his pond waste water to irrigate his maize crop and boost his income.

    Industry experts predict that farmed fish output will increase 50 percent from current levels by 2030.

    In the United States, which currently imports 84 percent of its seafood and produces less than 2 percent of the world’s cultivated fish - the Obama Administration has proposed new guidelines that would make it easier to set up fish farms in federal waters.

    U.S. officials say expanding domestic aquaculture production will reduce pressure on wild ocean catch and cut the nation’s seafood imports.

    While many environmental groups have expressed wariness about the rapid expansion of fish farming, the global aquaculture assessment released this week suggests that fish farming done well can be ecologically benign.  Sebastian Troeng is a vice president at Conservation International, a co-sponsor of the report.  He says among its key recommendations are increased innovation in aquaculture production, and better regulations in the part of the world where the sector is big and growing very rapidly.

    Troeng adds that careful compliance with environmental regulations is also essential in reducing adverse impacts as the industry grows. “So we can understand where there is going to be a push to increase production and then help guide that production so that it doesn’t place unacceptable demands on the environment.”   

    Troeng says the challenge is to get public officials, agencies, industry and communities to work together with a set of common goals that address world food needs while also protecting the environment.

    You May Like

    Hope Remains for Rio Olympic Games

    Facing a host of problems, Rio prepares for holding the games but experts say some risks, like Zika, may not be as grave as initially thought

    IS Use of Social Media to Recruit, Radicalize Still a Top Threat to US

    Despite military gains against IS in Iraq and Syria, their internet propaganda still commands an audience; US officials see 'the most complex challenge that the federal government and industry face'

    ‘Time Is Now’ to Save Africa’s Animals From Poachers, Activist Says

    During Zimbabwe visit, African Wildlife Foundation President Kaddu Sebunya says poaching hurts Africa as slave trade once did

    This forum has been closed.
    Comments
         
    There are no comments in this forum. Be first and add one

    Featured Videos

    Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
    Ivorian Chocolate Makers Promote Locally-made Chocolatei
    X
    July 29, 2016 4:02 PM
    Ivory Coast is the world's top producer of cocoa but hardly any of it is processed into chocolate there. Instead, the cocoa is sent abroad to chocolate makers in Europe and elsewhere. This is a general problem throughout Africa – massive exports of raw materials but few finished goods. As Emilie Iob reports from Abidjan, several Ivorian entrepreneurs are working to change that formula - 100 percent Ivorian chocolate bar at a time.
    Video

    Video Ivorian Chocolate Makers Promote Locally-made Chocolate

    Ivory Coast is the world's top producer of cocoa but hardly any of it is processed into chocolate there. Instead, the cocoa is sent abroad to chocolate makers in Europe and elsewhere. This is a general problem throughout Africa – massive exports of raw materials but few finished goods. As Emilie Iob reports from Abidjan, several Ivorian entrepreneurs are working to change that formula - 100 percent Ivorian chocolate bar at a time.
    Video

    Video Tesla Opens Battery-Producing Gigafactory

    Two years after starting to produce electric cars, U.S. car maker Tesla Motors has opened the first part of its huge battery manufacturing plant, which will eventually cover more than a square kilometer. Situated close to Reno, Nevada, the so-called Gigafactory will eventually produce more lithium-ion batteries than were made worldwide in 2013. VOA's George Putic reports.
    Video

    Video Polio-affected Afghan Student Fulfilling Her Dreams in America

    Afghanistan is one of only two countries in the world where children still get infected by polio. The other is Pakistan. Mahbooba Akhtarzada who is from Afghanistan, was disabled by polio, but has managed to overcome the obstacles caused by this crippling disease. VOA's Zheela Nasari caught up with Akhtarzada and brings us this report narrated by Bronwyn Benito.
    Video

    Video Hillary Clinton Promises to Build a 'Better Tomorrow'

    Democratic presidential candidate Hillary Clinton urged voters Thursday not to give in to the politics of fear. She vowed to unite the country and move it forward if elected in November. Clinton formally accepted the Democratic Party's nomination at its national convention in Philadelphia. VOA national correspondent Jim Malone has more.
    Video

    Video Trump Tones Down Praise for Russia

    Republican presidential candidate Donald Trump is toning down his compliments for Russia and Vladimir Putin as such rhetoric got him in trouble recently. After calling on Russia to find 30.000 missing emails from rival Hillary Clinton, Trump told reporters he doesn't know Putin and never called him a great leader, just one who's better than President Barack Obama. Putin has welcomed Trump's overtures, but, as Zlatica Hoke reports, ordinary Russians say they are not putting much faith in Trump.
    Video

    Video Uganda Unveils its First Solar-powered Bus

    A solar-powered bus described by its Ugandan makers as the first in Africa has made its public debut. Kiira Motors' electric bus, Kayoola, displayed recently at a stadium in Uganda's capital. From Kampala, Maurice Magorane filed this report narrated by Salem Solomon.
    Video

    Video Silicon Valley: More Than A Place, It's a Culture

    Silicon Valley is a technology powerhouse and a place that companies such as Google, Facebook and Apple call home. It is a region in northern California that stretches from San Francisco to San Jose. But, more than that, it's known for its startup culture. VOA's Elizabeth Lee went inside one company to find out what it's like to work in a startup.
    Video

    Video Immigrant Delegate Marvels at Democratic Process

    It’s been a bitter and divisive election season – but first time Indian-American delegate Dr. Shashi Gupta headed to the Democratic National Convention with a sense of hope. VOA’s Katherine Gypson followed this immigrant with the love of U.S. politics all the way to Philadelphia.
    Video

    Video Dutch Entrepreneurs Turn Rainwater Into Beer

    June has been recorded as one of the wettest months in more than a century in many parts of Europe. To a group of entrepreneurs in Amsterdam the rain came as a blessing, as they used the extra water to brew beer. Serginho Roosblad has more to the story.
    Video

    Video Commerce Thrives on US-Mexico Border

    At the Democratic Convention in Philadelphia this week, the party’s presumptive presidential nominee, Hillary Clinton, is expected to attack proposals made by her opponent, Republican presidential nominee Donald Trump, to build a wall along the U.S.-Mexico border. Last Friday, President Barack Obama hosted his Mexican counterpart, President Enrique Peña Nieto, to underscore the good relations between the two countries. VOA’s Greg Flakus reports from Tucson.
    Video

    Video Film Helps Save Ethiopian Children Thought to be Cursed

    'Omo Child' looks at effort of African man to stop killings of ‘mingi’ children
    Video

    Video London’s Financial Crown at Risk as Rivals Eye Brexit Opportunities

    By most measures, London rivals New York as the only true global financial center. But Britain’s vote to leave the European Union – so-called ‘Brexit’ – means the city could lose its right to sell services tariff-free across the bloc, risking its position as Europe’s financial headquarters. Already some banks have said they may shift operations to the mainland. Henry Ridgwell reports from London.

    Special Report

    Adrift The Invisible African Diaspora