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Streamers: A Win-Win for Seabirds and Fishermen

Short-tailed albatross. (Photograph courtesy Dr. Yuri Artukhin/WWF)
Short-tailed albatross. (Photograph courtesy Dr. Yuri Artukhin/WWF)

By Nicole Perman

Until recently, it seemed as though the short-tailed albatross would not be able to escape extinction.  These endangered seabirds have been threatened first by hunting, and more recently by overfishing in the North Pacific and Bering Seas, and by their less-than-ideal primary breeding ground – a small volcanically active island called Tori-shima, located off the southern coast of Japan.

As you can likely imagine, fishing hooks and volcanic eruptions make for a deadly combination, and albatross populations consequently took a nose dive. Fortunately, the story doesn’t end here.  Thanks to the implementation of seabird deterrent devices, called streamers, short-tailed albatross have been making a comeback.

Who doesn’t like a good underdog story?

Fisherman deploys streamer lines. (Photograph courtesy Dr. Yuri Artukhin/WWF)
Fisherman deploys streamer lines. (Photograph courtesy Dr. Yuri Artukhin/WWF)

Streamers Save Seabirds

Streamers, often made of long strips of plastic tubing, have been used successfully by fishing fleets to keep birds, such as the short-tailed albatross, at bay. While streamers may look like nothing more than plastic strips waving in the wind to the human eye, the albatross are fooled.

To these seabirds, a row of streamers appears as a barrier. This illusion of a wall deters them from diving down to snag the bait, ultimately saving them from the hooks that have claimed so many of their kin.

In fact, Alaska’s hook and line fleet – the first to implement streamers in the Bering Sea – found them to be 88 to 100 percent successful at keeping birds away from the hooks. The impact of these devices did not go unnoticed. Compelled by their success, WWF (World Wildlife Fund) made introducing them to other fishing hot spots around the world a priority. The Kamchatka Peninsula, jutting off of the eastern coast of Siberia and bordered by the Sea of Okhotsk and the Bering Sea, was at the top of their list. (WWF’s project was reported previously in: Reducing Seabird Bycatch in Russian Fisheries.)

Despite the relative close proximity of WWF’s Arctic office in Anchorage, Alaska, and seeming ease of transferring a low-tech solution across the Bering Sea, WWF learned quickly that there were many obstacles that stood between them and implementing streamers abroad, starting when their first shipment of streamers was confiscated by Russian Customs in 2004.

Even once the streamers made it to Kamchatka, WWF faced another hurdle: How can fisherman be convinced to use them?

Streamer lines off the stern of the fishing boat. (Photograph courtesy Dr. Yuri Artukhin/WWF)
Streamer lines off the stern of the fishing boat. (Photograph courtesy Dr. Yuri Artukhin/WWF)

Streamers Save Seabirds… and Money Too

WWF and other conservationists were undoubtedly in support of streamers for what they accomplished for seabird populations, but the captains and crews needed some convincing that rigging their fleets with streamers was worth the hassle. Through a comparative study of boats using streamers versus boats without them, experts from WWF found that the fleet not using streamers lost approximately $840,000 annually.

So how is it that streamers save so much money? As previously demonstrated by the Alaskan fleet, when streamers are present, seabirds are less likely to dive for the bait. As a result, not only are seabirds spared from the fatal hooks, but the bait remains available for fish, making a greater harvest possible. Fishermen know well that more fish means more money, so the fleets of Kamchatka concluded that installing streamers and potentially saving that $840,000 was worth the extra elbow grease.

Seabirds stay on the outside of the streamer lines, safe from the baited hooks on the longline. (Photograph courtesy Dr. Yuri Artukhin/WWF)
Seabirds stay on the outside of the streamer lines, safe from the baited hooks on the longline. (Photograph courtesy Dr. Yuri Artukhin/WWF)

Making Progress

The streamers effort in Kamchatka has evolved into a sustainable conservation project. Today, at least one Kamchatka fishing company manufactures its own streamers and makes custom-fit improvements, such as adding steel davits for easier deployment of streamers off the back of the boat.

Most importantly, thanks in part to the commitment of WWF and the longline vessels now sporting streamers, short-tailed albatross numbers are on the rise around the Kamchatka Peninsula. In 2008, WWF researchers monitoring seabird bycatch spotted an average of only two albatross a day.

By 2013, these researchers witnessed an average of 13 a day, even spotting as many as 33. These counts suggest an over 500 percent increase in albatross seen in this area in just five years.

The Japanese Bird Migration Research Center has also confirmed the growth in this population, adding that banded short-tailed albatross from both Tori-shima and from Muko-jima Island – a new man-made, translocated colony – have been seen feeding in waters around Kamchatka in the Bering Sea.

Best of all, according to records kept by Russian fishery observers during the 2013 season, zero short-tailed albatross were reported as bycatch. Here’s to more continued success of streamers and keeping this streak alive in 2014 and the years to come.

 

WWF-U.S. received a grant for this work from the Lindblad-National Geographic Fund for Conservation, Research and Exploration in 2013. The Fund supports efforts to restore the health and productivity of the ocean, and to positively impact natural and human communities.

Comments

  1. Della Moodie
    Ottawa, Ontario , Canada k1v8t6
    March 20, 12:02 pm

    I am glad that Streamers are helping save Albatross Birds so they don’t get hooked. Keep Safe ,Healthy and Protected ! .Thank you !.

  2. Ian L Jones
    St. John's, NL, Canada
    March 13, 2:48 pm

    SG Zador, AE Punt, JK Parrish. 2008. Population impacts of endangered short-tailed albatross bycatch in the Alaskan trawl fishery.

    http://cse.fra.affrc.go.jp/…/H19tori/Zador_etal2008.pdf

    “The analyses of the impact of trawl mortality on the Torishima short-tailed albatross population suggests that exceeding the current expected incidental take in the Alaskan groundfish trawl fishery, two in any 5-year period, by as much as a factor of 10 would have little impact on when the proposed recovery goals for the species are achieved.”

    “Achieving these goals is impeded only slightly if albatross are bycaught each year and is still attainable even with an unrealistically high trawl mortality of 50 albatross killed annually. The population model developed here shows that survival rates from all sources of mortality other than that caused by fisheries must be very high to allow for the observed increases in albatross numbers. These high survival rates, in turn, allow limited trawl mortality to have little influence on the population trajectory.”