Learn about aquatic invasive species

The Lake Tahoe Aquatic Invasive Species Coordination Committee will host a public forum on April 5 from 5:30 to 7:30 p.m. at the US Forest Service Building at 35 College Drive in South Lake Tahoe.

Brief presentations will focus on aquatic invasive species prevention and control projects in the Lake Tahoe Basin, including the Tahoe Watercraft Inspection Program, invasive aquatic plant and Asian clam control efforts, and non-native fish removal. The evening will conclude with a question and answer period. Light refreshments will be served.

Aquatic Invasive Species pose a real and serious threat to the Tahoe Basin’s unique natural environment and economy. Prevention efforts such as the Watercraft Inspection Program aim to avoid introduction of harmful species, such as Quagga and Zebra Mussels and New Zealand mudsnails. However, efforts have expanded in recent years to include control projects for invasive species already present in Lake Tahoe, such as Asian clams, Eurasian watermilfoil, curlyleaf pondweed, and non-native fishes. Primary funding for these projects has come from US Fish & Wildlife Service.

“Preventing and controlling aquatic invasive species matters to everyone who lives, works or plays here,” said Pete Brumis, Public Outreach Specialist for Tahoe RCD. ”

The AIS Forum offers the opportunity to interact with those leading the efforts to protect Lake Tahoe.” Presenters include scientists, research professionals and agency personnel from UC Davis Tahoe Environmental Research Center, TRPA, the U.S. Forest Service, Tahoe RCD and the US Fish & Wildlife Service. Project partners also hope to host another forum in the fall to summarize activities and lessons learned over the summer.

Bacteria could kill invasive species

The recent discovery of a bacteria that can kill zebra and quagga mussels has raised hopes for private and public organizations fighting to control the environmentally hazardous speciesm according to news reports.

New York State Museum researchers Daniel Molloy and Denise Mayer discovered a bacteria strain — Pseudomonas fluorescens — that can kill zebra and quagga mussels without killing other native species in the ecosystem.

Quagga and zebra mussels have not entered Lake Tahoe, but in the past three years the Tahoe Regional Planning Agency has implemented a lake-wide boat inspection program in an effort to prevent aquatic invasive species from entering into the waters of Lake Tahoe.

The complete story is available at the Tahoe Daily Tribune.

Inspection program working

Watercraft inspection data and scientific reports continue to indicate that Lake Tahoe’s waters remain clear of invasive Quagga and Zebra mussels, which are considered major threats to Lake Tahoe and surrounding waterbodies.

Tahoe Resource Conservation District (Tahoe RCD) watercraft inspectors performed 8,000 inspections this boating season, and there were an additional 19,000 launches comprised of watercraft with intact Tahoe-issued inspection seals.

“We’re very happy with the watercraft inspection program thus far,” said Patrick Stone, TRPA’s Senior Wildlife and Fisheries Biologist and lead for early detection monitoring of invasive mussels. “Investigations conducted around Lake Tahoe, Fallen Leaf Lake and Echo Lake confirmed that Quagga and Zebra mussels have not established in our lakes. These results are a credit to the inspection program.”

Concern among local agencies remains high as more Western waterbodies have shown evidence of invasive mussels and other aquatic invaders. Waterbodies in California and Nevada known to be infected with invasive mussels include San Justo Reservoir, Lake Mead, Lake Havasu and the entire Colorado River system.

As watercraft continue to arrive from high risk waters, the importance of Lake Tahoe’s watercraft inspection program remains critical. Federal appropriations through the U.S. Fish and Wildlife Service in 2010 enabled the program to implement off-highway inspection stations. This created an opportunity to streamline inspection procedures and increase decontamination capacity.

2010 saw a dramatic increase in watercraft decontaminations, which doubled from approximately 600 in 2009 to 1,208 this year. Improved decontamination capacity at off-highway inspection locations allowed inspectors to be more thorough in treating high-risk watercraft. Additional improvements to inspection protocol allowed inspectors to increase prevention efforts by intercepting watercraft arriving from waters known to be infested with aquatic invasive mussels.

In total, 11 watercraft showing the presence of aquatic invasive species of concern were intercepted and decontaminated.

“It only takes one contaminated boat to introduce aquatic invasive species into Lake Tahoe,” said Tahoe RCD Biological Resources Program Manager Kim Boyd. “We need to remain vigilant and not let our guard down. We hope that by demonstrating the success of the watercraft inspection program for Lake Tahoe, the Tahoe RCD and its partners can create a model for prevention programs by sharing our resources and providing support. The TRPA, our key partner in invasive species prevention, continues to be instrumental in the success and evolution of this program.”

While the addition of convenient off-highway locations enabled boaters to receive their watercraft inspections and decontaminations when entering the Lake Tahoe Basin, marinas and boat launches continued to be the busiest locations for inspections in 2010.

Cave Rock saw the most inspections, followed by the Tahoe Keys Marina, Lake Forest Boat Launch, Meyers Inspection Station, Alpine Meadows Inspection Station and Sand Harbor. Off-highway inspection stations accounted for approximately 31 percent of all inspections performed during the 2010 boating season.

This year’s prevention efforts also included a more rigorous non-motorized watercraft inspection process at ramp facilities, U.S. Forest Service kiosks and Fallen Leaf Lake. Tahoe RCD inspectors surveyed more than 1,900 paddlers to assess the risk of transporting aquatic invasive species from previously visited water bodies. Paddlers also were educated about self-inspecting and decontaminating canoes, kayaks and paddleboards.

Planning for the 2011 season is under way with some improvements and changes that will better serve the boating community while still protecting the Lake. Current information on the boat inspection program, including hours of operation for boat launches and snow closures, is available at www.TahoeBoatInspections.com or by calling 888-824-6267.

Inspections ward off invasive mussels

Watercraft inspection data and scientific reports continue to indicate that Lake Tahoe’s waters remain clear of invasive Quagga and Zebra mussels, which are considered major threats to Lake Tahoe and surrounding waterbodies.

Tahoe Resource Conservation District watercraft inspectors performed 8,000 inspections this boating season, and there were an additional 19,000 launches comprised of watercraft with intact Tahoe-issued inspection seals.

“We’re very happy with the watercraft inspection program thus far,” said Patrick Stone, TRPA’s Senior Wildlife and Fisheries Biologist and lead for early detection monitoring of invasive mussels. “Investigations conducted around Lake Tahoe, Fallen Leaf Lake and Echo Lake confirmed that Quagga and Zebra mussels have not established in our lakes. These results are a credit to the inspection program.”

Concern among local agencies remains high as more Western waterbodies have shown evidence of invasive mussels and other aquatic invaders. Waterbodies in California and Nevada known to be infected with invasive mussels include San Justo Reservoir, Lake Mead, Lake Havasu and the entire Colorado River system. As watercraft continue to arrive from high risk waters, the importance of Lake Tahoe’s watercraft inspection program remains critical. Federal appropriations through the U.S. Fish and Wildlife Service in 2010 enabled the program to implement off-highway inspection stations. This created an opportunity to streamline inspection procedures and increase decontamination capacity.

2010 saw a dramatic increase in watercraft decontaminations, which doubled from approximately 600 in 2009 to 1,208 this year. Improved decontamination capacity at off-highway inspection locations allowed inspectors to be more thorough in treating high-risk watercraft. Additional improvements to inspection protocol allowed inspectors to increase prevention efforts by intercepting watercraft arriving from waters known to be infested with aquatic invasive mussels.

In total, 11 watercraft showing the presence of aquatic invasive species of concern were intercepted and decontaminated.

“It only takes one contaminated boat to introduce aquatic invasive species into Lake Tahoe,” said Tahoe RCD Biological Resources Program Manager Kim Boyd. “We need to remain vigilant and not let our guard down. We hope that by demonstrating the success of the watercraft inspection program for Lake Tahoe, the Tahoe RCD and its partners can create a model for prevention programs by sharing our resources and providing support. The TRPA, our key partner in invasive species prevention, continues to be instrumental in the success and evolution of this program.”

While the addition of convenient off-highway locations enabled boaters to receive their watercraft inspections and decontaminations when entering the Lake Tahoe Basin, marinas and boat launches continued to be the busiest locations for inspections in 2010. Cave Rock saw the most inspections, followed by the Tahoe Keys Marina, Lake Forest Boat Launch, Meyers Inspection Station, Alpine Meadows Inspection Station and Sand Harbor. Off-highway inspection stations accounted for approximately 31 percent of all inspections performed during the 2010 boating season.

This year’s prevention efforts also included a more rigorous non-motorized watercraft inspection process at ramp facilities, U.S. Forest Service kiosks and Fallen Leaf Lake. Tahoe RCD inspectors surveyed more than 1,900 paddlers to assess the risk of transporting aquatic invasive species from previously visited water bodies. Paddlers also were educated about self-inspecting and decontaminating canoes, kayaks and paddleboards.

Current information on the boat inspection program, including hours of operation for boat launches and snow closures, is available at http://TahoeBoatInspections.com or by calling 888-824-6267. For more information on the district, visit www.tahoercd.org.

Rubber mats killing Tahoe's clams

Rubber mats laid atop beds of Lake Tahoe's invading clams seem to have done their deadly job, according to reports from the Tahoe Resource Conservation District.

In early November, divers removed mats from two half-acre-sized swaths of clam-infested lake bottom. While data still are being analyzed, the test indicates the mats appear to be the most effective weapon against Tahoe's Asian clam population, experts have said.

"There are definitely lots of visibly dead clams," said Kim Boyd, an invasive species specialist with the Tahoe Resource Conservation District. "It looks very promising."

The mats, measuring 10 feet wide and 100 feet long, kill clams by robbing them of oxygen and nutrients. The mats were laid on the lake bottom in July at Marla Bay and South Lake Tahoe's Lakeside Marina.

The $648,000 experiment was built on a previous test in 2009 suggesting "bottom barriers" were effective in killing the dime-sized clams. But this one targeted them on a larger scale. Scientists first noticed Asian clams in Tahoe's waters in 2002, but they have since exploded in number, infesting a large part of the southeast corner of the lake. They also have become established on a football field-sized piece of lake bottom near the mouth of Tahoe's landmark Emerald Bay.

Clams can adversely impact Tahoe's sensitive ecology and are linked to blooms of noxious algae. A bigger danger, experts say, is that the clams could elevate calcium levels in the lake's waters to the point they could support populations of quagga or zebra mussels, which would have devastating effects on Tahoe's ecology and economy.

"The fear is Asian clams could facilitate the introduction of the quagga," said Geoffrey Schladow, director of the University of California, Davis Tahoe Environmental Research Center.

Researchers now will study the areas the mats were laid to determine how quickly Asian clams recolonize on the bottom. They also want to study long-term impacts on other macroinvertebrates native to the lake, such as pea clams, Boyd said.

Other, smaller tests are planned in Marla Bay to gauge effectiveness of the mats in killing Asian clams during the winter, when cold water temperatures are thought to shut down their metabolism and make them invulnerable to this particular method of control, Boyd said. If bottom barriers still can be effectively used in winter, she said they would prove much more valuable over the long run.

By late February, researchers plan to install some barriers in Emerald Bay to determine their stability when encountering underwater turbulence produced by paddle-wheel tour boats, Boyd said. Scientists said they hope to begin using the mats to kill Emerald Bay's clams after next summer's boating season.

While the barriers appear effective, Asian clams probably will always have an unwelcome presence at Lake Tahoe, Schladow said.

"Eliminating them probably isn't feasible. Controlling them could be possible," Schladow said.

Photo: UC Davis

Funds OK'd for cloud seeding, boat inspections

A program to boost the amount of snow falling during winter storms at Lake Tahoe can proceed this winter following action by the Truckee Meadows Water Authority on Oct. 20, according to news reports from the Reno Gazette-Journal.

The $155,800 approved by the Truckee Meadows Water Authority to help fund the Desert Research Institute's cloud-seeding program was among more than $723,000 worth of projects designed to protect the Truckee River and the region's water supplies.

Money also was approved to expand a program to inspect boats for the presence of mussels and other invasive species from Lake Tahoe to other area water bodies, including Boca and Stampede reservoirs.

Added to $100,000 already promised by the Western Regional Water Commission, the $155,800 approved by TMWA will ensure the program proceeds this winter.

Boat inspections
The authority also voted to provide $296,000 to begin inspecting boats for mussels and other invasive species at area lakes and reservoirs, including Boca, Stampede, Prosser Creek and Martis Creek reservoirs, as well as Donner, Independence and Weber lakes.

Boat inspections have been under way at Lake Tahoe since 2008, but experts said it's important to expand that effort to other water bodies within the Truckee River system. Inspections are anticipated to begin in May.

Successful removal of aquatic invasive weeds in Lake Tahoe

From Tahoe Resource Conservation District:

South Lake Tahoe, Calif. – Efforts to remove approximately one-third of the Eurasian watermilfoil infestation in Lake Tahoe’s Emerald Bay using experimental technologies has been deemed an early success.

Eurasian watermilfoil is a fast-spreading aquatic invasive weed that has been on the rise in Lake Tahoe since its introduction more than a decade ago. A partnership including Tahoe Resource Conservation District, California Department of Parks and Recreation, Tahoe Regional Planning Agency, UC Davis Tahoe Environmental Research Center and subcontractor A.C.E. Diving covered approximately 8,500 square feet of lake bottom near the pier and swimming beach of Emerald Bay using 8’ x 40’ reusable bottom barrier strips in June and hand removal of remaining weeds. On Sept. 14, the barriers were removed to reveal just sand, with no signs of invasive weeds below the barriers.


The project’s objective was to focus efforts on the removal of a significant portion of one known, discreet infestation site, with the goal of completely removing all visible plant growth.

According to California Department of Parks and Recreation Environmental Scientist Dan Shaw, “We’re very optimistic about the initial results of this pilot project because it demonstrates that it is possible to eradicate the majority of an infestation in a specific locale. These findings will help us establish a control plan for aquatic invasive weed populations in Emerald Bay and other afflicted areas of Lake Tahoe.”


Participating resource managers are implementing a prioritized strategy for the effective removal of aquatic invasive weeds based on risk of spread, previous removal projects, public benefit and likelihood of removal success. The swimming beach and pier area in Emerald Bay was identified for the pilot project because it meets all of these criteria. Surveys will be conducted in subsequent seasons to document the long-term success of the removal efforts. It is anticipated that future control efforts will only require more limited maintenance removal to keep the swim beach and pier free of aquatic invasive weeds, greatly reducing control costs.

It is estimated that 3 acres of Eurasian watermilfoil have established in three distinct locations within Emerald Bay, near Parson's Rock, the Swim Beach and Avalanche Beach.

For more information, visit http://www.tahoercd.org/.

TRPA fines boater $5,000

A Los Angeles resident was fined $5,000 by the Tahoe Regional Planning Agency on Aug. 25 for evading Lake Tahoe boat inspectors in late-June, according to news reports.

In a unanimous decision, TRPA’s legal committee agreed to the fine and recommended that Mark Kanev of Los Angeles make a public apology for purposefully evading inspectors after his vessel was recommended for decontamination.

Tahoe Regional Planning Agency officials reported that Kanew tried to launch his vessel on June 28 at Cave Rock. Inspectors turned him away after he told inspectors that the boat had been in southern Utah's quagga-mussel-infested Sand Hollow Reservoir. After finding water in the boat, inspectors ordered a full decontamination scheduled for July 1.

Inspectors later learned that Kanew took the vessel to the Meyers inspection station on June 28 and gave different information about the boat's origin. Kanev then launched his boat at Meeks Bay. TRPA officials found the vessel moored in Rubicon Bay on July 1 and had it removed from Lake Tahoe.

The TRPA reported that the water in Meeks Bay Marina and the area the boat had been moored was tested for quagga and zebra mussel DNA. The tests indicated that no quagga or zebra mussels were present. The boater is the first to be sanctioned by the Tahoe Regional Planning Agency.

Roadside inspections to close

The Tahoe Regional Planning Agency will close two of its roadside boat inspection stations in early to mid-September, according to community liaison Jeff Cowen. Roadside inspection and decontamination stations are been operating throughout the summer with four stations at Spooner Summit, Northstar, Alpine Meadows and Meyers.

The stations were set up for the mandatory inspections of quagga and zebra mussels for all vessels into Lake Tahoe. The invasive quagga and zebra species are miniscule, but can wreak havoc on the Lake if they are introduced. These mussels, which are hitching rides on boats and trailers and in ballast tanks, bladders and live wells, are spreading across the West. Quagga and zebra mussels will spread rapidly once they are introduced to a lake and will gorge on the food supply, kill fish and pollute the clarity of the lake.

The Spooner Summit station on Highway 50 will operate until Sept. 7, with the Alpine Meadows Road station off Highway 89 closing Sept. 15. Roadside stations at Northstar and in Meyers will operate until Sept. 30. The stations are open daily from 6 a.m. to 8 p.m.

However, mandatory inspections will continue through the winter at all open launch sites. The addition of roadside inspection stations to the Lake Tahoe AIS Program have been funded by the U.S. Fish and Wildlife Service. For details on the mandatory boat inspections, visit www.protecttahoe.org or call (888) 824-6267.

Invasive species forum

The Truckee Region Aquatic Invasive Species Prevention Program is the topic of a Sept. 3 meeting to gather input for a draft strategic plan. The plan will recommend required mandatory inspections of all motorized watercraft on Donner Lake and Boca, Stampede and Prosser Creek reservoirs beginning as early as next summer.

The forum is at 7:30 p.m. at the Truckee Community Center. For more information, call Craig Threshie at (530) 550-5252 or e-mail cthreshie@tahoercd.org.

Killing invasive clams

Lake Tahoe scientists at the University of California, Davis, and the University of Nevada, working with government and conservation organizations, began a novel attempt last week to control the dime-sized Asian clam, which threatens lake clarity.

First observed in the lake in 2002, the Asian clam population in some places now has reached thousands per square yard, mainly along the California-Nevada state line in the southeast corner of the lake.

Once it takes hold, the Asian claim displaces native claims, snails and other organisms relying on the lake clarity, and they foster the growth of green algae, which impacts lake clarity. As well, the clams can foster the invasion of quagga mussels, according to scientists.

The effort to kill the claims involves installing an acre of rubber sheeting on the lake bottom to kill the clams by depriving them of oxygen. The sheeting will remain in place all summer.

That study and the results of this year's acre-scale experiment will be used to help Tahoe Basin agencies develop a clam management strategy.

(Photo: UC Davis)

TRPA boat inspections

The brilliant blue waters with amazing clarity are what draw boaters, kayakers and other water enthusiasts to Lake Tahoe. But, it takes all of use to keep these beautiful waters safe from invasive species.

Hence, the TRPA’s mandatory inspections of quagga and zebra mussels for all vessels – including kayaks – into the Lake. This year, the inspection program has been combined with the Blue Boating certification program. Kayakers aren’t required to have Blue Boating certification.

The invasive quagga and zebra species are miniscule, but can wreak havoc on the Lake if they are introduced. These mussels, which are hitching rides on boats and trailers and in ballast tanks, bladders and live wells, are spreading across the West. Quagga and zebra mussels will spread rapidly once they are introduced to a lake and will gorge on the food supply, kill fish and pollute the clarity of the lake. They also will clog cooling system water intakes, causing motors to overheat.

TRPA charges a single annual fee for the invasive species inspections and Blue Boating certification, which are available at all launch sites. TRPA also will be offering four roadside inspection stations opening Memorial Day weekend: Alpine Meadow Ski Resort; Northstar-at-Tahoe in the Castle Peak parking lot; 2128 Keetak St. in Meyers at the intersection of Highways 89 and 50; and Spooner Summit at the intersections of Highways 28 and 50 (boats less than 26’ only). The stations are open daily from 6 a.m. to 8 p.m. throughout the summer.

TRPA offers a sticker for Tahoe-only vessels and one for vessels that use other waters during the year – the Tahoe In & Out Sticker. These fees are based on engine horsepower.

The Tahoe Only sticker ranges from $20 for a vessel with 1 to 100 horsepower up to $60 for more than 1,001 horsepower.

The Tahoe In & Out sticker has a fee system based on vessel length or type (including personal watercraft) for the invasive species inspection and on horsepower. For example, a 16’ to 25’ boat with 1 to 100 horsepower would pay $55, while the same size boat with 501 to 1,000 horsepower would be $85. The complete fee structures are available online. The fee includes unlimited invasive species inspections for the year. As well, a three-day pass is available for a flat $20 discount.

It’s a lot of information to digest, so I’ll devote a separate column later in the season to the Blue Boating program and the need for such inspections. In the meantime, call the TRPA hotline at (888) 824-6267 or visit www.protecttahoe.org.

Boat inspections considered for other Sierra waters

The Tahoe Conservation District, (http://www.tahoercd.org/), is considering a proposal to expand vessel inspections for invasive species from Lake Tahoe to include other waters in the Sierra Nevada for the 2010 boating season.

The TRCD received a $231,000 grant from the Truckee Meadows Water Authority to develop a plan to inspect boats being launched in other waters including Independence Lake, Donner Lake, and Boca, Stampede and Prosser Creek reservoirs. The inspections would look for the invasive Zebra and quagga mussels. Such inspections are mandatory on Lake Tahoe.

No funding for the inspection program's operation is yet available. The grant will cover the costs of researching and designing an inspection program.

Aquatic Invasive Weed Survey and Control

The Tahoe Resource Conservation District (www.tahoercd.org) recently released a summary of its Aquatic Invasive Weed Survey and Control.

Aquatic weed control continued through the 2009 summer season in Emerald Bay. This treatment included the installation of 54 bottom barriers and utilizing vacuum-assisted hand removal around the edges of bottom barriers and in areas where bottom barriers are not feasible.

A new infestation of curly-leaf pondweed, Potamogeton crispus, was detected this season. The satellite population was treated and will be monitored and re-treated as necessary. A comprehensive, diver-assisted lake wide survey was completed in October. Results from this survey and results from control efforts will be reported once the data analysis in finalized.

In addition to the actual control work in Emerald Bay, the Lake Tahoe Nearshore Aquatic Weed Working Group revised the Aquatic Weed Monitoring Protocol and survey forms to reflect weed control efforts in a quantitative manner.

The TRCD also is working to develop a data management system for the purpose of monitoring, prioritizing and documenting aquatic weed removal efforts on a lake wide scale. This will include removal and monitoring efforts performed by the private sector such as private docks, marinas and homeowners associations.

Emerald Bay Trip

Truckee-Donner Parks and Rec. is offering a trip to Emerald Bay on Oct. 2 to visit one of the sites where the Tahoe Diver’s Conservancy is working to eradicate invasive species in Lake Tahoe.

Learn about zebra and quagga mussels, New Zealand clams, curly leaf pondweed, millefoil and other species that are threatening the Lake.

The trip is from 9 a.m. to noon and is limited to 14 people. The cost is $52 per person. To register, call (530) 582-7720.

Lake Tahoe's water trail

The Lake Tahoe Water Trail Committee released a new edition of its “Lake Tahoe Water Trail Map & Guide” earlier this summer, and if you haven’t picked up a copy, you need to get one.

The map is a waterproof and tearproof map of Lake Tahoe and Fallen Leaf Lake that was specially designed for kayakers to help them navigate on their own around the lake. The map is an ingenious idea and features GPS waypoints, put-in points (including boat ramps, marinas and spots to put in by car) and a list of local sites of interests. But, probably the most useful information is the guide that lists lodging, boating, camping, picnicking, dining and other useful information to aid in your trip around Lake Tahoe.

While originally designed with kayakers in mind, any one that spends time on the water will find this map a great tool to have with them.

The map is wonderfully detailed with lake depths and cleared marked shorelines, with both public and private lands clearly marked. I have a collection of Tahoe maps, and this is one of the best-produced and most useful maps I’ve ever seen.

As I was reading my copy of the map recently (and, I love to read maps), I marveled at the amount of time and energy that has been devoted to this particular guide. The Lake Tahoe Water Trail Committee, a group of paddling advocates, has compiled 294 places to help kayakers navigate the lake from public beaches and campgrounds to restaurants and lodging that can be accessed by the lake.

There are also historical points of interest including the Thunderbird Lodge, Tallac Historic Site, Sugar Pine Point State Park and many others. They also include a list of local outfitters accessible by water in case you need supplies and interesting points like the underwater barge in Emerald Bay or the Lakefront Wedding Chapel in South Lake (I guess in case you decide to be wed during your trip around the lake).

The map features a point with a color-coded key. On the back is detailed information on each site including a key that will tell you if there’s a pier, fuel, lodging, camping, restaurants, restrooms, local transit, outfitter, showers, phones and much more. As well, they provide local emergency information and contact information for local visitor’s centers to help you on your trip.

The maps retail for $10.99 and are available at most local outfitters and bookstores. For more information on the map of the Lake Tahoe Water Trail Committee, visit www.laketahoewatertrail.org.

Zebra & Quagga Mussels

The Committee also includes information on the map about the zebra and quagga mussels, two invasive species that the TRPA is trying to keep from infecting Lake Tahoe. These mussels can be transported from infected waterways to Lake Tahoe, causing significant damage to clarity and will clog and damage boats and municipal water systems.

These mussels can survive for weeks in standing water or on any wet material from kayaks to PFDs, wet suits, clothes, shoes and other equipment. The most effective way to prevent their spread is to clean, drain and dry anything that has touched the water. If kayakers launch at a public boat launch, they are required to have an inspection, which is provided free for all non-motorized vessels. If you’re not sure about your equipment, please take the time to have this free inspection done. (There’s a fee for motorized vessels.) For more information on the mussels, visit www.protecttahoe.org. To find a local inspection site, see the list of public launches on our Marina chart in this edition.

Lodge to Lodge Kayak Tours

Tahoe Adventure Company is offering the first Lodge to Lodge Kayak Tour along the Lake Tahoe Water Trail from Sept. 24 to 27 and from Oct. 1 to 4.

The tours feature a multi-day kayak and stay package along the West, North and East shores of Lake Tahoe. Enjoy the glassy, clear waters with early morning guided paddles spotting local wildlife and learning the unique natural and human history of this special region.

In addition to thorough instruction, guides will inform participants about natural and human history topics such as wildlife, geology, ecology and native peoples. Kayaking is at a leisurely pace, allowing time to see the sites and enjoy the crystal clear water. Each day's paddle starts after breakfast, finishes in the afternoon and is suitable for beginners. Evenings are enjoyed with delicious meals at local restaurants.

Space is limited. For details, call Tahoe Adventure Company at (530) 913-9212.

Emerald Bay trip

Truckee-Donner Parks and Rec. and Tahoe Diver’s Conservancy is offering a trip on Sept. 11 to Emerald Bay to visit one of the sites where the Tahoe Diver’s Conservancy is working to eradicate invasive species in Lake Tahoe.

Learn about zebra and quagga mussels, New Zealand clams, curly leaf pondweed, millefoil and other species that are threatening the Lake. Participants will be able to observe conservancy divers at work on the site. The trip is 9 a.m. to noon and is limited to 14 people. The cost is $52 per person. The trip, without divers at work, also will be offered on Oct. 2. To register, call (530) 582-7720.

Kayak Safety Class

The U.S. Coast Guard Auxiliary wraps its series of safety classes with a Kayak Safety class on Oct. 10. The class will include an introduction to kayaking, selecting a life jacket and protective clothing, recommended safety equipment, cold water hazards and more. This class is $30 per person and will be held at the Coast Guard Station in Lake Forest. To register or for more information, call Jerry Gilmore at (530) 587-3334.

Marine news tidbits

I’ve had a lot of interesting, marine-related news items come across my desk recently. As the pile gets higher, I thought it would be good time to share some of these items with the marine community.

Boat Camp open

The Emerald Bay Boat Camp reopened a few weeks ago after being closed while work was being done of the pier. The camp is located on the north side of Emerald Bay and offers 21 campsites with buoys available. Camping is on a first-come, first-served basis. You cannot tie-up on the pier, and buoys are limited to vessels 30’ in length. As well, you can bring dogs to your campsite, but they are not allowed on any of the surrounding lands, which are part of the Emerald Bay State Park. For more information, call (530) 541-3030.

Sand Harbor boat launch closed

Lake Tahoe’s water level forced the recent closure of the boat ramp at Sand Harbor State Park, marking the third such closure this season. The Tahoe Vista and Kings Beach boat ramps have been closed since early spring.

Kayakers and non-motorized vessels may still launch at Sand Harbor and TRPA inspections for quagga and zebra mussels will continue there.

The closure of Sand Harbor will mean longer lines at the remaining ramps. Cave Rock is now the only East Shore ramp still open, with Lake Forest outside Tahoe City the only ramp open on the North Shore. West Shore and South Shore boat launches remain open, and marinas around the lake continue to offer launching services. For more information, see the Marinas chart on the facing page.

Roadside inspections

The TRPA is currently reviewing a proposal to open 24-hour boat inspection stations along the highways leading into the Lake Tahoe Basin to stop the potential spread of quagga and zebra mussels. The proposal is being considered after reports of boaters skirting the inspections now conducted at boat ramps and marinas. The proposed stations would be along U.S. 50 in California and Nevada and Highways 431, 207, 89 and 267.

Another proposal being considered would be to have two or three centralized locations for boat inspections in place for summer 2010 instead of the inspections now done at dozens of locations around Lake Tahoe. The board is expected to consider staff reports on these proposals this month.

Vessel Safety Checks

The U.S. Coast Guard Auxiliary continues to offer free vessel safety checks and will even come to you for a check. The Auxiliary has reported a more than 500 percent increase in checks on Lake Tahoe and Donner Lake this season. There is no reporting of their findings to any agency, and those passing the inspection will receive a decal noting that all required safety equipment is on board.

Mandatory equipment on motorized vessels less than 26 feet in length require the following safety items onboard: visual distress signal device (like a ski flag); a sound-producing device (whistle, horn, bell, etc); fire extinguisher; properly fitting Personal Flotation Device (PFD/life jacket) for all passengers and operators; a readily accessible throwable Type IV cushion (not stowed); working ventilation system (inboard or I/O engines); and working navigation lights. Mandatory equipment for kayaks and canoes are a properly fitting PFD with a whistle attached to the PFD.
If the Coast Guard or one of the law enforcement agencies finds a vessel does not have the required safety equipment, fines may range from hundreds to a few thousands dollars. To make an appointment for your free Vessel Safety Check, call Joe Harris at (650) 279-9159. Checks can be performed at your residence, boat ramp or other North Lake Tahoe location.

Protecting Tahoe from invasive species

Quagga and zebra mussels, invasive species that are miniscule in size, are at the center of the latest battle to protect Lake Tahoe.

These mussels, which are hitching rides on boats and trailers and in ballast tanks, bladders and live wells, are spreading across the West. Quagga and zebra mussels will spread rapidly once they are introduced to a lake and will gorge on the food supply, kill fish and pollute the clarity of the lake. They also will clog cooling system water intakes, causing motors to overheat. As well, they have been found in pipes in municipal water systems.

The mussels can also be found on kayaks, water toys, wetsuits and any equipment exposed to infected waters.

Young quagga mussels will feel like sandpaper to the touch, while adults usually have dark concentric rings on the shell. The mussels can grow up to 1.6”, making the young mussels hard to spot. Full grown mussels are usually smaller than a quarter.

In its latest battle to protect the lake, TRPA (Tahoe Regional Planning Agency) has instituted a mandatory inspection of all boats launched in Lake Tahoe. The inspections were offered free until a fee system went into effect on June 1. TRPA says the fees will cover their costs formerly paid for through a grant that has run out of funds.

Infected waters

Quagga mussels were discovered in Lake Mead in January 2007, and since then have been confirmed at lakes south of Lake Tahoe. Quagga and zebra mussels have been confirmed in waters of the Colorado River Drainage, Lake Mohave, Lake Havasu in California and Arizona, and the San Justo Reservoir in San Benito County.

Inspectors decontaminated six vessels in the Lake Tahoe area over Memorial Day weekend. One vessel was found to have quagga mussels, while the other five came from waters where mussels have been discovered.

Vessel fees

TRPA is charging inspection fees for all motorized vessels at public launches and area marinas. These fees are in addition to any launch fees levied at ramps and marinas.

Vessels that have an inspection fee intact when launched the next time will not have to pay a fee. The fees are:

·      Non-motorized vessels & vessels with intact inspection seal – No charge

·      Vessels up to 16’ - $10

·      Vessels over 16’ & up to 25’ - $30

·      Vessels over 25’ & up to 39’ - $40

·      Vessels over 39’ - $60

·      Vessels with ballast tanks, bladders & live wells - $10 additional

A 10-inspection discount card is available for boats that frequently launch at lakes that do not offer inspections or decontamination. The 25 percent discount cards are only available at the TRPA office in Stateline, Nev.

Preventing infestation

To prevent vessels from being infested, TRPA recommends these steps:

·      Clean, drain and dry all equipment with every trip

·      Wash watercraft and trailers with a high pressure hose at 140 degrees

·      Learn how to inspect watercraft for mussels

·      Let boats dry out for 28 days prior to transporting to other waters

·      Wash fishing equipment, water toys, wetsuits and flotation devices in a diluted bleach solution prior to use in other waters

For more information, call the TRPA hotline at (888) 824-6267, visit www.protecttahoe.org, follow http://twitter.com/tahoeaquatic or text “Follow tahoeaquatic” to 40404.