Friday, October 28, 2016

Gone Fishin'

Whether fishing with a worm or a fly in a lake or a stream, finding the perfect fishing 'hole''' and coming home with a catch is a day well spent by any child anywhere in the world.

     Efforts are being made to insure fish continue to thrive in the world's waters. To prevent fish and other marine life from becoming hopelessly trapped in the plastic six-pack rings that hold beer and soda cans, some rings are being made from biodegradable materials. Florida's Saltwater Brewery has used wheat and barley waste from its beer-making process to construct packaging that begins to disintegrate two hours after hitting the ocean or the beach.

     Bycatch is another problem fish face. To catch sushi-grade tuna, fishing boats bait thousands of hooks on a single line that can be 25 miles long. Along with tuna, longlining unintentionally catches other fish, including sharks, stingrays, and turtles. Although some of the unwanted fish are safely released, others perish from the stress of being caught and the dead fish upset the marine ecosystem balance already threatened by climate change from warming water and pollution. Experiments using circular, rather than J-shaped fishing hooks, and fish instead of squid bait have shown there are ways to reduce bycatch.

     The ocean's plastic garbage could outweigh fish by 2050, according to a study cited by the UN's Secretary-General, Antonio Guterres. Tons of plastic and other floating debris already are turning beaches, marina areas, lakes, rivers, and oceans into garbage dumps. Trash causes fish. surfers, and the wealthy to suffer. In the July, 2018 issue of VOGUE, Helena Dunn, the designer of Tuulikki eco-conscious surfwear, reports, "As surfers, we have a front-row seat on environmenta lissues." Especially during storms, plastic bags, bottles, wrappers, and other debris run off from land. Large growths of seagrass add to the problems caused by debris that can clog cooling-water intakes and cause engine damage on the most expensive yachts and ships.

    Modest and major efforts are being made to keep plastics out of the world's waters. The Dell computer company has begun to use plastic collected on beaches in Haiti as its packaging material. Hewlett Packard urges computer printer users to go to hp.com/recycle to find where they can take their used ink cartridges for recycling.  When Dutch student, Boyan Slat, was 17, he founded the Ocean Cleanup Foundation for the purpose of removing the estimated 8 million tons of discarded fishing nets, water bottles, and assorted plastic debris that end up swirling in the Great Pacific Garbage Patch between California and Hawaii. Since the north Pacific Gyre, or current, funnels the plastic into the center, the foundation designed a long floating plastic boom that can be anchored across the flow of the Pacific Gyre. At this collection point, the waste can be lifted onto ships and taken to recycling centers on land.

     Australian surfers, Peter Ceglinski and Andrew Turton, are developing a Seabin to collect and remove trash around marinas. Their Seabin is a submerged cylinder open on top just below the water surface. An electric pump pulls water and floating trash into a bag filter that collects the trash and allows water and small marine life, like fish eggs, to pass through. Seabins can hang from docks, where electricity is available, and maintenance employees can empty the filter bags on a regular schedule. A solar powered model could be attached to channel marker buoys in shipping lanes. The French company, Poralu Marine, is manufacturing a prototype that is being tested at Le Grande Motte, a large Mediterranean harbor near Montpelier, France.

     Of course the best pollution solution is to refrain from throwing things in the water in the first place.

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