— Want more? Check out our newsletter archives!

Clean Angling News
October 2013
New Technologies Aid The Effort

       New technologies are always appearing in the fight against invasives. In the past month a couple of new technologies, or uses for existing technologies, have caught my attention.

      In a very inventive use of an existing technology, researchers in France are using Google Street View to successfully map the presence of an invasive insect. The pine processionary moth Thaumetopoea pityocampa is a serious pest that damages Austrian pine trees which are used extensively in managed areas. In autumn, moth larvae build a highly visible nest made from white, shiny silk. The researchers "drove" around a large area with Google Street View to map districts that had been invaded by the moth and found that they were 90% as accurate as human observations made by driving all of the same streets.  French biologists use Google Street View to map invasive species

       One area of research that is rapidly expanding is the use of environmental DNA to establish the presence of a host of species. Very simply, this technique works by searching a sample of water for DNA that is shed by the target organism. This technique is still in its infancy but offers great promise for monitoring aquatic invasives. In a new twist, researchers have developed a process through which they can identify the presence of fish by searching for the DNA of the microbial communities present in the digestive tracts of  the target species. Researchers have found that each species has unique gut microbia that is shed into the water during defecation. Read More

Mussels Are On The Move In Canada
As an outside observer, it seems to me that our Canadian friends have really ramped up their invasive species efforts in the past couple of years.  Unfortunately, they  need to be prepared to deal with the discovery of zebra mussels in Manitoba's Lake Winnipeg.

      Lake Winnipeg is huge, in fact, it is the eleventh-largest freshwater lake on Earth! It is the furthest west of any zebra mussel waters in Canada and poses a huge challenge to managers. For years, they have tried to prevent the introduction of the invader into the lake and now they have an even bigger challenge in trying to keep the mussels from spreading to other waters.  Read More

Previously Posted On Facebook   
     We review news stories on a daily basis and post stories of interest on Facebook as we find them. However, we know that many of you are not using Facebook so here are the links we posted during October on our Facebook pages.

     Our  Clean Angling Facebook page is where we post links that deal with fish, fishing, cleaning, boat inspections, and other issues of interest to anglers. 

Two New York anglers have plead guilty to introducing aquatic invasive species to Lake George. Each admitted guilt and have been fined for their violation

California boat owners will pay a new invasive species fee when they register their boats 

Pennsylvania's Spring Creek is one of the most famous fishing waters in the US. Officials now report that New Zealand mud snails have become established

Hats off to Cody Wyoming's Big Horn Basin chapter of Sportsmen for Fish and Wildlife. They were publicly recognized for their invasive species efforts

Controlling aquatic weeds is very difficult because it is very difficult to target weeds underwater. New research is showing that hydroacoustics may provide a useful tool.

Hunting season is open in Minnesota and state officials are reminding waterfowl hunters to make sure they are clean

Although most invasive species introductions are accidental, there is a long tradition of misguided individuals intentionally spreading invasive fish to new waters

On our Invasive Species Action Network Facebook page we post all types of invasive species news including stories about all types of invaders, policy issues and other items of interest.

Many people are surprised that earthworms are invaders in some parts of North America. New research is showing how significant of an impact they are having

One invasive problem that I have never been able to find an answer for is how to control terrestrial weeds on small islands and gravel bars. Could goats be the answer?

Florida officials announced they will no longer allow the commercial trapping of invasive monkeys at Silver River State Park

Master Gardeners are being urged to be aware of the threat of invasive species and to learn the best ways to protect themselves from invaders

Snapping turtles are native to parts of the US. However, they are an invader in Oregon

It is typically believed that invaders succeed because the invaded habitat is hospitable to the invader. New research indicates that an invader's success may depend on its ability to quickly evolve in the new habitat

Although we usually discuss invaders from around the world that impact the US, the problems flow both ways. Read about the ten worst invaders the US sends to other countries

A shrimp as long as your arm? Read about the invasion of giant Asian tiger shrimp in the Gulf of Mexico 

In April, Canadian officials declared that Asian longhorned beetles had been eradicated from the country. However, in October they reported a new discovery

North American mink are an invasive species in South America and new evidence shows that they may be having a serious impact on South America's largest woodpecker 

Can bio-control successfully fight the invasion of Asian tiger mosquitoes? Researchers at the University of Kentucky believe they may have an effective tool

Debris from the 2011 Japan tsunami continues to spread species around the world. Most recently, a boat has washed ashore in British Columbia

Florida officials are ramping up their effort to control populations of Tegu lizards before they spread further

An invasive crab species just discovered in eastern Maine has marine ecologists worried about its potential impact on the environment.

Russian olive trees have invaded many western riparian areas. From an initial few trees, they have come to dominate in many areas. New research hopes is focusing on the problem

Invasive species are a global problem. Read about their impact in Great Britain

October 2013

Happy Halloween! I don't need any tricks but I will offer you a treat! Our partner GreenFish is offering our readers a special 25% discount on all GreenFish apparel. Just enter the code ISAN when you check out and receive a 25% discount on all GreenFish gear!

   As the summer has vanished and fall closes in, fishing and boating take a back seat to other activities. As might be expected, this results in fewer angling related stories for us to report. However, from monkeys to turtles, the past month has brought us a lot of very interesting stories about other invasive species issues. I hope you will take time to explore the world of invasives by reading some of the stories we are highlighting.

   We get more questions about felt bans than anything else. For those who are concerned, our Status of US Felt Restrictions page is where we track every felt ban or proposal that we know of. We update this page whenever we get new info.

  The next issue of the Clean Angling News will be our combined Nov/Dec "Holiday" Issue which you should receive in mid-December. 

   I hope you will get in touch with me if you have questions or invasive species stories to share.

Bob Wiltshire
Executive Director ISAN

  Please send comments, questions and complaints to newsletter@stopans.org.

The Clean Angling News is published monthly by the Invasive Species Action Network. Please send comments, questions and complaints to newsletter@stopans.org.

Please help

This newsletter, the Clean Angling Pledge and all of our efforts to prevent the spread of invasives are financed by contributions. Please help us with a tax deductible PayPal donation of any amount.

Subscribe the newsletter

Clean Angling Store

Visit the Clean Angling Store where you'll find a variety of T shirts, hats and other items.

The Clean Angling News is regularly produced by the Invasive Species Action Network. If you have questions, suggestions or would like to learn more about invasive species please contact us:

Invasive Species Action Network
215 East Lewis, #202
Livingston, MT 59047