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Entries in zebra mussels (69)

Friday
Apr132018

Clean, Drain, And Dry No Matter Where You Fish

Some states require that you clean, drain, and dry your boat. Others request it.

But no matter where you fish, you should follow the practice to help prevent the spread of aquatic invasive species, most notably zebra mussels and plants such as Eurasian watermilfoil, hydrilla, and giant salvinia.

In regard to plants, the Maine Department of Environmental Protection said, "Many new infestations occur in shallow waters near public boat  launching facilities, so it’s obvious invasive plants move from lake to lake on the boats and equipment of unsuspecting boaters. If people are the cause, they can also be the cure."

According to the New York Department of Environmental Conservation (DEC),  the first thing you should do is check your boat, trailer, and equipment at the take-out site.

"If your boat has been used in a water containing zebra mussels, run your hand along the hull. If it feels like sandpaper, it likely has mussels attached," it said.

DEC also advises that you check trailer bunks, lights, license plate, motor props, transducers, axles, rollers, and even fishing lures for plant fragments.

"Clean off visible aquatic plants, animals, and mud . . . ," added Stop Aquatic Hitchhikers (SAH). "Scrub hull using a stiff brush. Rinse watercraft, trailer, and equipment with high pressure hot water when possible. Flush motor, according to owner's manual."

Next, drain. Kansas Wildlife, Parks & Tourism recommends that you empty all water from engines, livewells, bilges, bait buckets, "and every other conceivable space or item that can hold water before leaving the area.

"Dump live bait on dry land or at bait disposal sites, not into lake or stream. Never move live fish between bodies of water or up streams."

Finally, dry. SAH suggests that be done for a minimum of five days "unless otherwise required by local or state laws, when moving between waters, to kill small species not easily seen." Alternatives include wiping items dry with a towel or disinfecting them.

"Drying times vary significantly depending upon the type of equipment, air temperature, and relative humidity," DEC said.

 "While the outside of a boat will dry relatively rapidly, bilge, livewells, and other areas of a boat not reached by the sun or lacking good air circulation will take additional time to dry completely. A minimum of 5-7 days drying time in dry, warm conditions is recommended.".

Sunday
Dec102017

B.A.S.S., Other Groups Urge Action By Corps To Protect Great Lakes

B.A.S.S., along with other hunting, angling, conservation and outdoor industry organizations, supports the U.S. Army Corps of Engineers’ plan to prevent Asian carp from infesting the Great Lakes.

The Brandon Road Lock and Dam, near Joliet, Ill., and below the Chicago Area Waterway System, is a chokepoint to reduce the risk of invasive Asian carp swimming directly into Lake Michigan. The Corps’ “Tentatively Selected Plan” (TSP) proposes a gauntlet of technologies including an electric barrier, water jets, complex sound and a flushing lock to reduce the risk of Asian carp getting through, while still allowing navigation through the lock.

“Asian carp pose one of the greatest threats to the Great Lakes and the world-class smallmouth bass fishery that anglers travel from all over the country to enjoy,” said B.A.S.S. Conservation Director Gene Gilliland. 

 “The Great Lakes are home to many invasive species. Some of those invaders have been worse than others, but just how many more can the system take before it reaches a tipping point and bad things start to happen? Bass fishermen sometimes don’t recognize invasive species as such a bad thing, especially when you talk about the Great Lakes.

“Zebra mussels and gobies, while real problems for industry and shipping, have proved to be a boon to the bass population, but nothing good can come from an Asian carp invasion. These fish have incredibly high reproductive potential, and in short order, can make up the majority of the pounds of fish a body of water can support. They filter out the plankton that is the base of the food chain for everything else, there are few markets for them and no real way to control the population explosion.”

While expressing support for the TSP, the groups in a letter also urge the Corps of Engineers to pursue full federal funding of the $275 million estimated cost, rather than require a local cost share, due to the national significance of the issue.

Additionally, the groups noted that Congress authorized the Corps to prevent aquatic invasive species transfer between the Great Lakes and Mississippi River basins, and therefore the Corps needs to continue pursuing a two-way solution to preventing aquatic invasive species transfer. However, that pursuit should be simultaneous without diverting resources from moving ahead with the TSP.

“Competing interests and politics-as-usual have stalled the closure of the carp pathway to Lake Michigan for too long,” said Gilliland. “It’s been studied to death, and we know what needs to be done. There is just no more time. This needs to be pushed through, or we stand to lose one of this country's greatest fisheries.”

The groups also encourage the Corps to explore Aquatic Nuisance Species treatment technology that can be used in the locks, as well as continuing other efforts to reduce the Asian carp population below the lock and dam.

The Corps issued a timeline with the release of the plan, which estimates a final report in August 2019, at which point it will be up to Congress to approve and fund the project, with a construction completion date of 2025 if there is no delay in approval and funding.

B.A.S.S. is among 50 conservation and fishing industry groups signing the letter of support. Others include the American Sportfishing Association, Congressional Sportsmen’s Foundation, Ducks Unlimited, National Wildlife Federation and B.A.S.S. Nation organizations in Ohio and Michigan.

Friday
Jan132017

Zebra Mussels Threaten Popular Connecticut Bass Fishery

The largest reservoir in Connecticut and one of its most popular bass fisheries is at risk of infestation by zebra mussels.

"They're not on in Candlewood yet, but they're right on our doorstep," said Len Greene of FirstLight Power Resources, which owns and manages the lake and a hydro power station on it. "It was only a matter of time before they migrated there."

"There" is the station's foundation on the Housatonic River and nearby boulders. In 2009, the invasive mussels were found in nearby Lakes Lillinonah and Zoar and in the river itself.

And the threat lies in way that power is generated, by pumping water between the lake and the river. In the past, FirstLight has voluntarily limited pumping during times when mussels reproduce to lessen the threat, and plans to continue doing so.

"We've been able to buy five years with the pumping restrictions," Greene added. "It's an unfortunate situation that I think was inevitable at some point, given that zebra mussels spread everywhere they can."

As officials try to decide on the best way to repel a zebra mussel invasion, Candlewood Lake Authority has suggested  a smaller than normal winter drawdown to reduce the risk when the lake refills with river water. Typically, water is drawn down 6 1/2 feet to knock back another invasive, Eurasian watermilfoil. Executive Director  Larry Marsicano added that the authority can monitor the area around the intake pipe.

"We're still trying to manage the risk of them getting a toehold," he said. "Even if one gets pumped in, it takes two to tango."

Aside from the threat that they post for blocking water intakes with their dense colonies, zebra mussels also improve water clarity as they feed on algae and plankton. That would allow for more light penetration, encouraging already problematic watermilfoil to grow faster and spread into deeper water.

Monday
Mar232015

Industry Looks at Boat Design as a Way to Combat Mussel Invasion

Zebra mussels on shopping cart

For years, resource managers focused on education, regulations, and boat inspections to help stop the spread of invasive species such a zebra mussels. But in late January, a new tactic was initiated as a first-of-its-kind boat design summit was staged here.

“If you can build a better boat, it makes it easier down the line,” said Brian Goodwin of the American Boat and Yacht Council (ABYC), which develops safety standards and is a sponsor. “There is no silver bullet that will solve the problem. But this is part of it.”

Other sponsors included the National Marine Manufacturers Association, the U.S. Fish and Wildlife Service, the state of Minnesota and Lake Minnetonka’s Tonka Bay Marina. Minnesota ranks No. 1 nationally in boat ownership per capita.

Organizers hoped that the event would stimulate recommendations for new designs for the more than 100 boat manufacturers, marina operators, conservation leaders, and biologists in attendance.

“This is a critical piece we need to look at and make sure we’re doing all we can do to reduce the risk,” said Ann Pierce of the Minnesota Department of Natural Resources. “I think it will be extremely beneficial, and not just for Minnesota.”

In addition to attaching themselves to hulls, mussels often stow away on boats in any place that water accumulates, including motors, bilges, livewells, and transom wells. Pontoon boats, the fastest growing sector of the boating industry, and wakeboard boats, which collect water to create wakes, especially are conductive for aquatic hitchhiking. For example, lifting strakes on pontoons enable them to go faster, but they often are sealed only at one end, allowing small mussels entry at the other.

“For a lot of companies, it’s going to be a retooling,” said Bob Menne, owner of Premier Marine, the fourth-largest pontoon manufacturer in the nation, and the only one, he said, to weld strakes and keels to keep out zebra mussels.

“We take it as a very serious issue,” he said.

Sunday
Mar152015

New York Legislation Reminds Anglers to Clean, Drain, And Dry

Giant salvinia on boat trailer in Texas. TPWD photo

New legislation in New York makes anglers and other boaters responsible for taking common-sense precautions to prevent the spread of aquatic invasive species. That means that they should clean, drain, and dry their boaters and trailers to remove plant and animal matter before transport or launch.

“New York’s new law is the latest, but not the last,” said Gene Gilliland, National Conservation Director for B.A.S.S. “Texas and Arizona passed clean, drain, and dry laws a few years ago.

“It is said that there needs to be legislation to enforce common sense,” he continued. “Checking your boats for clinging plants or debris, cleaning it by removing materials or power washing after you’ve boated in contaminated waters, removing the plug to drain your boat’s bilge or livewell, and drying the boat thoroughly to prevent the spread of any sort of plants or critters should be automatic --- an unconscious habit --- for all boaters.

“The fact that it is not a habit results in laws that force the issue.”

Starting in November, offenders in New York waters will receive a written notice for a first violation, along with educational materials regarding invasive species. A fine of up to $150 will be issued for a second offense, up to $250 for a third offense, and no more than $1,000 for a fourth.

Additionally, the Department of Environmental Conservation (DEC) has adopted regulations that prohibit boats from launching or leaving agency access sites without taking these precautions. Also, several local municipalities and state organizations have adopted local laws to minimize the spread of invasives, including boat inspection and washing requirements.

In 2014, New York adopted its first mandatory inspection program for boat launches on Lake George.

DEC points out that invasives threatened both tourism and sport fishing by outcompeting native species for food and habitat. Additionally, they can spread diseases, and, once established, are nearly impossible to eradicate because they have few natural predators in their new environments. Nationwide, they annually cause about $120 billion in damage.

“As much as people don't like government regulation, the problem here is one of how easily a system can be contaminated,” Gilliland said.

“A single boat can be responsible for introducing invasive mussels or plants. If boaters do not police themselves, to protect water resources, states may take drastic measures, such as we've seen in California, where boats are banned altogether from some waters.”