Grey whale breaching while entangled in a lobster trap line © Brandon Cole / naturepl.com (CNW Group/World Animal Protection

Grey whale breaching while entangled in a lobster trap line. The gear and lines cut into the animal's flesh and cause infection and a slow painful death, or can so tire and weigh down the whale that it slowly drowns
Photo Credit: Brandon Cole- naturepl.com -World Animal Protection

Ghost gear and World Oceans Day

Today is World Oceans Day 

As part of a number of campaigns by various environmental groups globally, World Animal Protection (WAP) has launched its own campaign against ghost fishing gear.

Josey Kitson is the executive director of World Animal Protection-Canada.

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Josey Kitson, executive director of World Animal Protection-Canada
Josey Kitson, executive director of World Animal Protection-Canada © WAP-Canada

The campaign is called “Sea Change”.

It’s purpose is to increase awareness of the problem of “ghost gear” worldwide, and work towards solutions.

Ghost gear are the fishing nets, longlines, various traps and their lines, and other plastic debris from fishing activities that are either accidentally lost or break free, or are deliberately dumped at sea.

These nets, lines, gear, and garbage however don’t stop “fishing” because the fishermen and ships are gone. They continue to float through the ocean for years, even decades, catching and killing anything and everything that comes into contact with them.

A response team led by the Hawaiian Islands Humpback Whale National Marine Sanctuary, working closely with NOAA Fisheries, successfully rescued an entangled humpback whale in 2013. Rescuers managed to cut away only 40 feet of trailing line on the first day of the response. But they also attached a satellite tag into the trailing gear, allowing them to relocate the animal a few days later. During the second attempt, they removed an additional 200 feet of line and two buoys, completing the rescue
A response team led by the Hawaiian Islands Humpback Whale National Marine Sanctuary, working closely with NOAA Fisheries, successfully rescued an entangled humpback whale in 2013. Rescuers managed to cut away only 40 feet of trailing line on the first day of the response. But they also attached a satellite tag into the trailing gear, allowing them to relocate the animal a few days later. During the second attempt, they removed an additional 200 feet of line and two buoys, completing the rescue © NOAA

“Most people are aware of the hazards caused by plastic and garbage in our oceans, but ghost gear is actually one of the biggest threats to animals” says Josey Kitson

The organization says some 640,000 tons of ghost gear ends up in our oceans every year.

While impossible to calculate, it is estimated that millions of fish, mammals and birds die each year tangled or hooked on the gear or garbage as it floats around the oceans.  It can continue to kill indiscriminately for decades, in many cases further reducing populations of already endangered or threatened species.

Plastic packing sraps often used to secure shipping or bait boxes are a common cause of entanglement amongst seals and sea lions. According to the National Marine Fisheries Service, these bands are the culprit behind more than 50 percent of observed neck entanglements in Alaska’s Steller sea lion population. Young seal and sea lion pups tend to play with marine debris, not knowing the harm they can cause.
Plastic packing sraps often used to secure shipping or bait boxes are a common cause of entanglement amongst seals and sea lions. According to the National Marine Fisheries Service, these bands are the culprit behind more than 50 percent of observed neck entanglements in Alaska’s Steller sea lion population. Young seal and sea lion pups tend to play with marine debris, not knowing the harm they can cause. © NOAA

In some cases, longlines and nets are set out and  anchored to the sea floor, but storms can tear the gear loose so that the fishermen cannot find it. It then floats freely throughout the oceans.

Other longlines often catch seabirds which get hooked on the towed bait and drown.  Portions of these long lines, which can stretch to several dozens of kilometers in length, can sometimes break free under the strain and are lost to become ghost killers.

A revived California sea-lion shows the deep wound left by a packing strap which was successfully removed, saving the animal from a slow painful death. Dr Martin Haulena of the Marine Mammal Rescue Centre and his team have developed a method to tranquilize animals in distress
A revived California sea-lion shows the deep wound left by a packing strap which was successfully removed, saving the animal from a slow painful death. Dr Martin Haulena of the Marine Mammal Rescue Centre and his team have developed a method to tranquilize animals in distress © Vancouver Aquarium

Other towed gear can snag on sea obstacles and be torn free and remain  floating near the bottom as it continues to ensnare marine life.

Ghost gear also costs the fishing industry millions of dollars in lost revenue and clean-up costs.

While the target is often tuna and swordfish, longline fishing indiscriminately catches all kinds of marine creatures and birds. up to 25% of the dead catch is thrown back
While the target is often tuna and swordfish, longline fishing indiscriminately catches all kinds of marine creatures and birds. up to 25% of the dead catch is thrown back. © ghostfishing.org

With the Sea Change campaign, “we are working with companies and NGOs to develop policies to reduce the amount of ghost gear that gets into the ocean, remove gear wherever possible and support global efforts to rescue animals that become caught”, says Kitson.

Loggerhead turtle entangled inderelict ‘ghost’ net.
Loggerhead turtle entangled inderelict ‘ghost’ net. © NOAA

She notes one example of a company currently recycling old nylon nets and turning them into carpet tiles and other products.  Joel Baziuk Operations Supervisor at Steveston Harbour Authority on Canada’s west coast says, “This program, which we hope to expand, is protecting the environment and preventing ghost gear from harming animals.”

 

Categories: Environment & Animal Life, International, Society
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