Extension - Ecosystem Stewardship
Aquatic Invasive Species Prevention and Control

An invasive species is defined as "a species that is 1) non-native to the ecosystem under consideration and 2) whose introduction causes or is likely to cause economic or environmental harm or harm to human health" (Executive Order 13112).

In Pennsylvania, some of the aquatic invasive species (AIS) of most concern include the zebra mussel, round goby, purple loosestrife, water chestnut, Eurasian watermilfoil, northern snakehead, and flathead catfish (invasive in eastern Pennsylvania). Pathways of AIS introduction and spread include ballast water, recreational boating, fishing, gardening, and aquaculture.

Pennsylvania Sea Grant has worked since its inception to identify and address ways to prevent the introduction and spread of AIS. PASG conducts teacher trainings, develops outreach materials targeting specific pathways, works to educate decisions makers, and participates in statewide and regional coordination efforts. Some specific activities include:

• Recreational Boater AIS Survey - With 83,161 miles of streams and rivers, 3,900 lakes, ponds, and reservoirs, and Lake Erie and Delaware Estuary coasts right on our doorstep, Pennsylvania's recreational boaters have an enormous potential to transfer AIS accidentally between coastal and inland waters. In fact, recreational boating may be one of the most significant pathways through which AIS are introduced. Fortunately, it may also be one of the most preventable. The survey found overall boater awareness of AIS to be very low. Although 75 percent of boaters were informed about zebra mussels, few had heard of Eurasian watermilfoil, flathead catfish, purple loosestrife, round gobies, or rusty crayfish that are also present in many of Pennsylvania's waterways. Because knowledge of AIS and the perceived importance of preventing the spread of AIS are strongly correlated, it's evident we need to provide better education on AIS via the media sources boaters reported using most frequently: newspapers, magazines and newsletters, fishing regulation and boating registration pamphlets, and television programs (Full article).
  
  
• Training teachers in the Delaware Estuary region about how to incorporate AIS information into their science curriculum - Invasive Species: the Good, the Bad and the Prolific was a series of professional development workshops for teachers and environmental educators conducted in collaboration with Maryland Sea Grant and Delaware Sea Grant. A total of 120 educators from Washington, DC, Delaware, Maryland, New Jersey, and Pennsylvania participated over the 22-month grant period.
  
  
• Serving on the Pennsylvania Invasive Species Council - The Pennsylvania Invasive Species Council (PISC) was established via Executive Order #2004-1, in January 2004. PISC met for the first time in October 2005, and has begun to develop an organizational structure and define its mission and purpose. One major undertaking of PISC will be to develop a comprehensive invasive species management plan. This plan will help coordinate, direct, and fund prevention programs to augment and enhance existing management efforts. PASG is helping to lead this effort.
  
  
• Organized Setting the Road Map: A Workshop to Begin Developing an Invasive Species Management Plan for Pennsylvania - This workshop, held in October 2005, was attended by 65 participants, and its outcomes will be directed to the PISC for consideration as it develops an invasive species management plan. The workshop proceedings are now available online.
  
  
• Conducting training on Aquatic Invasive Species Hazard Analysis of Critical Control Points (AIS HACCP) - AIS HACCP planning is a methodology used to identify risks and focus procedures to prevent the spread of AIS through natural resource management pathways. Understanding vectors and developing plans to remove non-target species and prevent biological contamination can prevent the spread of AIS. Using practical examples, case studies, and hands-on exercises, workshop participants learn principles of pathway management planning as a tool to prevent the spread of invasive species. If you are interested in participating in an AIS-HACCP training, please contact Eric Obert or Sarah Whitney.
  
  
• Flathead Catfish Research and Outreach Initiative - Combined scientific study and educational efforts to increase knowledge about the flathead catfish in the Delaware Estuary Coastal Zone. This project collected information on distribution and diets of flathead catfish in the Schuylkill River. The research enables fisheries managers to make better-informed decisions to protect the Delaware Estuary Coastal Zone's native fish and shellfish resources. Outreach materials developed in conjunction with the project include boat stickers, a table top display, and the online resource "So What's the Big Deal About Flathead Catfish" will help prevent the spread of introduced flathead catfish to new waterways including those in New York, New Jersey, and Delaware.