Sunday 20 August 2017
 

Lake Clarity

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Invasive species are widely recognized as one of the most significant biological threats the planet’s environmental and economic well being. Lake Tahoe has much to learn and findings to share in the effort to resist and to remove these species. 

  

 

Asian Clams: Marion Whitmann Interview (1)

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Asian Clams, Interview with Marion Whitmann, Part 1


 

Dr. Marion Whitmann is an expert in Asian Clams which are an invasive species in Lake Tahoe. These clams don’t have any natural predators in Tahoe and as a result have taken over significant swaths of the lake floor where they cause damage to the ecological system and can sometimes cause economic damage by spurring algae blooms and other effects damaging to Tahoe’s water and beaches.

 

 

photo: Dr. Marion Whitmann (right) holding Asian Clams in hand on UC Davis research dive 

 

Asian Clams: Marion Whitmann Interview (2)

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Asian Clams, Interview with Marion Whitmann, Part 2


Dr. Marion Whitmann is an expert in Asian Clams which are an invasive species in Lake Tahoe. She tells us, "Between 2008 and 2011 the Asian Clam population in Lake Tahoe increased both in range and in abundance. The populations are moving west and north from the southeastern quadrant of the lake. As an aquatic ecologist I can say that Asian Clam is having an impact on native biota in Lake Tahoe. It is up to decision makers to weigh the costs and benefits of treating Asian Clam in Lake Tahoe."

 

photo: Dr. Marion Whitmann (right) holding Asian Clams in hand on UC Davis research dive 

   

Aquatic Weeds: Lars Anderson Interview (1)

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Aquatic Weeds, Interview with Lars Anderson, Part 1


Lars Anderson is a plant physiologist whose specialty is aquatic weeds. He has recently retired from a multi-decade career with the United States Agricultural Research Service. His home base has been at the University of California at Davis where he has led efforts throughout California to slow or halt the spread and negative impacts of aquatic invasive weeds. In his retirement Anderson has continued to be involved with efforts to stop the spread of aquatic invasive weeds within Lake Tahoe. 

photo: underwater diver removing aquatic weeds from lake floor 

 

Aquatic Weeds: Lars Anderson Interview (2)

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Aquatic Weeds, Interview with Lars Anderson, Part 2


Welcome to part 2 in the interview with Lars Anderson, plant physiologist and aquatic weed specialist.

“In 2003 we found a new plant – curlyleaf pondweed,” say Anderson. He goes on to say, “I think that what is happening now is that the agencies are realizing that there need to be actions taken to stop these weeds.” In this conversation Anderson shares insight into how aquatic weeds got to Tahoe in the first place and how everyone can help prevent the spread of aquatic invasive weeds. 

photo: underwater diver removing aquatic weeds from lake floor 

   

Aquatic Invasive Species Program at Lake Tahoe Part 1 of 2

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Lake Tahoe Aquatic Invasive Species Program, Part 1 of 2 in the Interview with Ted Thayer. Ted Thayer is the Fish & Wildlife Program Manager at the Tahoe Regional Planning Agency. Thayer leads the Lake Tahoe Basin collaborative Aquatic Invasive Species Program. The goals of the Program are to prevent new introductions of aquatic invasives to the Tahoe Region, limit the spread of existing aquatic invasive populations and abate harmful ecological, economic, social and public health impacts of aquatic invasives.

   

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