Showing posts with label Didymosphenia geminata. Show all posts
Showing posts with label Didymosphenia geminata. Show all posts

Thursday, February 16, 2012

March 1 is take-a-trout-to-lunch day in Missouri

Trout fishing in Bennett Spring State Park in ...
Image via Wikipedia

MDC trout hatcheries are economic engines.
JEFFERSON CITY–If Missouri is the state “Where the Rivers Run,” hatcheries at Missouri trout parks are the confluence of spiritual health and financial wealth.
More than 1.7 million visitors from Missouri and beyond flock to the Show-Me State’s four trout parks each year. They come to leave their troubles behind and to lose themselves in the beauty of nature and the pursuit of rainbow trout. Along the way, they also leave more than $100 million, which supports thousands of jobs and sustains local economies.
Three of Missouri’s trout parks–Bennett Spring State Park near Lebanon, Montauk State Park near Licking and Roaring River State Park near Cassville–are owned by the Missouri Department of Natural Resources. Maramec Spring Park near St. James belongs to the James Foundation. These destinations, with campgrounds, hiking trails, historic buildings and other amenities, are wonderful destinations in their own rights. But trout provided by the Missouri Department of Conservation (MDC) are the main attraction.
March 1 marks the start of the catch-and-keep fishing season at trout parks, and thousands of anglers have been making the pilgrimage to Missouri’s trout temples on that date for more than 70 years. The number of anglers present on opening day depends partly on weather, but just as important is the day of the week on which March 1 falls. Total attendance at all four parks has topped 14,000 in years when the weather was good and the season opener fell on a weekend. This year’s Thursday opener promises a moderate turnout, even with good weather.
Bennett Spring, Montauk and Roaring River expect approximately 2,000 anglers each. Maramec Spring expects to host as many as 1,000 anglers. Gov. Jeremiah “Jay” Nixon plans to launch the 2012 catch-and-keep season by firing the opening gun at Roaring River. Retired science teacher Berry Reynolds, of Licking, will fire the opening gun at Montauk. He has fished every opening day at Montauk since 1973.
Hatchery managers use these estimates to determine how many trout to stock each day. Throughout most of the season, they stock 2.25 fish per expected angler. On opening day, however, they put three fish in the water for every angler they expect to attend. These fish average around 12 inches long. However, MDC also stocks dozens of “lunkers,” surplus hatchery brood fish weighing upwards of 3 pounds. A few tip the scales at more than 10 pounds.
This year, opening-day anglers will get more than a chance to catch big fish. They will receive lapel buttons designed to raise awareness of didymo, an invasive algae also known as “rock snot,” thanks to its unsavory appearance. Didymo blankets the beds of cold-water streams with unattractive mats that choke out native plants, degrading fish habitat. It reduces natural food sources and fouls hooks, making fishing nearly impossible.
In an attempt to keep didymo out of Missouri, the Conservation Commission has banned the use of felt- or other porous-soled waders, which can harbor didymo cells. More information on the ban and instructions for converting porous-soled waders for legal use is available at www.mdc.mo.gov/node/16927
Didymo can hitch a ride to new waters even without the help of porous soles, however. So, as a further precaution, MDC has installed wader-washing stations to disinfect waders at all four trout parks, and at Shepherd of the Hills Hatchery near Branson.
MDC also urges anglers to keep didymo out of Missouri with the following precautions.
·        Check all fishing gear and equipment and remove any visible algae. Dispose of algae by placing it in the trash, not by putting it down a drain or into bodies of water.
·        Then Clean all gear and equipment with a solution of 2-percent bleach, 5-percent saltwater, or dishwashing detergent. Allow all equipment to stay in contact with the solution for at least three minutes. Soak all soft items, such as felt-soled waders and wader boot cuffs, neoprene waders and life jackets, in the solution for at least 20 minutes.
·        Or Dry all gear and equipment for at least 48 hours by exposing it to sunlight.
Anglers need a daily trout tag to fish in Missouri’s trout parks. Missouri residents 16 through 64 need a fishing permit in addition to the daily tag. Nonresidents 16 and older also need a fishing permit. Anglers who are exempt from permit requirements due to age or other circumstances must carry documentation to verify their exempt status.
For more information about trout-park fishing, call 417-532-4418 for Bennett Spring,573-265-7801 for Maramec, 573-548-2585 for Montauk or 417-847-2430 for Roaring River.

Wednesday, February 1, 2012

Porous-soled waders banned in Missouri trout waters

Didymo or rock snot (Didymosphenia geminata) i...
Image via Wikipedia

New MDC regulation takes effect March 1 to help keep Missouri a great place to fish.

JEFFERSON CITY Mo – With catch-and-keep trout season opening March 1, the Missouri Department of Conservation (MDC) reminds trout anglers to help prevent the spread of a new threat to Missouri’s cold-water streams and rivers. Called “didymo” (Didymosphenia geminata) or “rock snot,” this invasive alga forms large, thick mats on the bottoms of cold-water streams and rivers, reducing the quality and quantity of food vital to fish such as troutDidymo also clogs water intakes and boat motors. It interferes with fishing gear and eventually makes fishing nearly impossible, with devastating economic and environmental consequences. While it has not been found in Missouri, rock snot has been found just south of the Missouri-Arkansas border in the White River.

According to MDC Fisheries Biologist Mark VanPatten, recreational equipment such as boats, lifejackets and fishing gear, particularly porous-soled waders, are the most likely ways for didymo to spread into Missouri. 

“Porous-soled waders and wading boots, worn by many trout anglers, appear to be a likely pathway for the spread of didymo,” VanPatten explains. “The soles hold moisture for days and can harbor cells of this alga. Individual cells cannot be seen with the naked eye and only a single cell is needed to establish a stream-killing colony. Anglers who visit waters with didymo can, unknowingly, transfer these cells to the next stream they visit.”

The Missouri Conservation Commission approved a regulation change in August 2011 that bans the use of porous-soled waders or footwear incorporating or having attached a porous sole of felted, matted, or woven fibrous material when fishing in trout parks and other specific trout waters. The new regulation will go into effect March 1.

“Conservation makes Missouri a great place to fish so preventing the spread of this invasive species into Missouri is critical,” VanPatten warns. “There is no way to control or eradicate didymo once it gets established in the state.”

Didymo is kept in check naturally in other parts of the country and world by lower pH, or acidity, levels in the water. Missouri’s wealth of limestone creates higher pH levels in Show-Me waters. These higher pH levels can allow didymo to spread unchecked. 

To help reduce the spread of didymo, MDC encourages anglers to remember: Check, then Clean or Dry.

·        Check all gear and equipment and remove any visible algae. Dispose of algae by placing it in the trash, not by putting it down a drain or into bodies of water.

·        Then Clean all gear and equipment with a solution of 2-percent bleach, 5-percent saltwater, or dishwashing detergent. Allow all equipment to stay in contact with the solution for at least three minutes. Soak all soft items, such as felt-soled waders and wader boot cuffs, neoprene waders and life jackets, in the solution for at least 20 minutes.

·        Or then Dry all gear and equipment for at least 48 hours by exposing it to sunlight.

To help anglers clean their waders before entering Missouri trout streams, MDC has installed wader wash stations at Missouri’s five cold-water trout hatcheries: Bennett Spring State Park near Lebanon, Montauk State Park near Salem, Roaring River State Park near Cassville, Maramec Spring Park near St. James and Shepherd of the Hills Hatchery by the upper portion of Lake Taneycomo near Branson.

All anglers are encouraged to replace their porous-soled waders with ones that have non-porous rubber or synthetic soles.

Anglers can adapt felt-soled and other porous-soled waders to comply with the new regulation by sealing the soles with solutions of contact cement or marine rubber cement. VanPatten notes the cement may need to be reapplied after each use. MDC offers an instructional video for sealing waders at http://www.youtube.com/watch?v=n_udcfZqA_w

“Adapting waders is not a cure,” VanPatten cautions. “It is just one step in prevention. It is still vital to check and clean or dry all waders and all other gear that have had contact with the water.”

For more information, visit www.mdc.mo.gov and search “didymo.”

Tuesday, October 4, 2011

MDC bans porous-soled waders to help protect trout waters from invasive algae


Porous-soled waders are prime suspects in human transport of “didymo,” or “rock snot.”

Courtesy Missouri Department of Conservation
JEFFERSON CITY Mo – In anticipation of winter trout fishing, the Missouri Department of Conservation (MDC) encourages trout anglers to help prevent the spread of a new threat to Missouri’s cold-water streams and rivers. Called “didymo” (Didymosphenia geminata) or “rock snot,” this invasive alga forms large, thick mats on the bottoms of cold-water streams and rivers,reducing the quality and quantity of food vital to fish such as trout. Didymo also clogs water intakes and boat motors. It interferes with fishing gear and eventually makes fishing nearly impossible, with devastating economic and environmental consequences.

Didymo is native to northern parts of North America and Europe. While it has not been found in Missouri, rock snot has been found just south of the Missouri-Arkansas border in the White River.

According to MDC Fisheries Biologist Mark VanPatten, didymo is kept in check naturally in other parts of the country and world by lower pH, or acidity, levels in the water. Missouri’s wealth of limestone creates higher pH levels in Show-Me waters. These higher pH levels can allow didymo to spread unchecked. 

“Preventing the spread of this invasive species into Missouri is critical,” VanPatten warns. “There is no way to control or eradicate didymo once it gets established in the state.”

VanPatten emphasizes that recreational equipment such as boats, lifejackets and fishing gear--particularly porous-soled waders--are the most likely ways for didymo to spread into Missouri. 

“Porous-soled waders and wading boots, worn by many trout anglers, appear to be a likely pathway for the spread of didymo,” VanPatten explains. “The soles hold moisture for days and can harbor cells of this alga. Individual cells cannot be seen with the naked eye and only a single cell is needed to establish a stream-killing colony. Anglers who visit waters with didymo can, unknowingly, transfer these cells to the next stream they visit.”

The Missouri Conservation Commission has approved a regulation change banning the use of porous-soled waders or footwear incorporating or having attached a porous sole of felted, matted, or woven fibrous material when fishing in trout parks and other specific trout waters. Pending public comment through the Secretary of State’s office, the new regulation will go into effect March 1, 2012, the opening day of catch-and-keep fishing at Missouri’s four trout parks.

To help reduce the spread of didymo, MDC encourages anglers to remember: Check, then Cleanor Dry.

·        Check all gear and equipment and remove any visible algae. Dispose of algae by placing it in the trash, not by putting it down a drain or into bodies of water.

·        Then Clean all gear and equipment with a solution of 2-percent bleach, 5-percent saltwater, or dishwashing detergent. Allow all equipment to stay in contact with the solution for at least three minutes. Soak all soft items, such as felt-soled waders and wader boot cuffs, neoprene waders and life jackets, in the solution for at least 20 minutes.

·        Or then Dry all gear and equipment for at least 48 hours by exposing it to sunlight.

To help anglers clean their waders before entering Missouri trout streams, MDC has installed wader wash stations at Missouri’s five cold-water trout hatcheries: Bennett Spring State Park near Lebanon, Montauk State Park near Salem, Roaring River State Park near Cassville, Maramec Spring Park near St. James and Shepherd of the Hills Hatchery by the upper portion of Lake Taneycomo near Branson.

All anglers are encouraged to replace their porous-soled waders with ones that have non-porous rubber or synthetic soles.

Anglers can adapt felt-soled and other porous-soled waders to comply with the new regulation by sealing the soles with solutions of contact cement or marine rubber cement. VanPatten notes the cement may need to be reapplied after each use. MDC offers an instructional video for sealing waders at http://www.youtube.com/watch?v=n_udcfZqA_w

“Adapting waders is not a cure,” VanPatten cautions. “It is just one step in prevention. It is still vital to check and clean or dry all waders and all other gear that have had contact with the water.”

MDC held public open-house forums in March and April in communities near Missouri’s trout parks and hatcheries to help educate anglers, outfitters, retailers and boaters about the dangers ofdidymo, the need to replace porous-soled waders and to get public feedback on the proposed regulation change.

For more information, visit www.mdc.mo.gov and search “didymo.”

Friday, February 18, 2011

MDC to hold public forums on preventing invasive “rock snot”

Didymosphenia geminataImage via Wikipedia
This invasive alga smothers aquatic life vital to the food chain that supports fish such as trout.

JEFFERSON CITY Mo – The Missouri Department of Conservation (MDC) will hold public open-house forums in March and April to help educate anglers and boaters about the dangers of “didymo” or “rock snot.” This invasive alga forms large, thick mats on the bottom of lakes and streams, smothering aquatic life vital to the food chain that supports many fish species, including trout. Didymo (Didymosphenia geminata) has been found just south of the Missouri-Arkansas border in the White River.

According to MDC Fisheries Biologist Mark VanPatten, preventing the spread of this invasive species is critical to the health of Missouri’s lakes and streams. He added that recreational equipment such as boats, lifejackets, and fishing gear -- particularly waders -- are the most likely ways for Didymo to spread into Missouri. 

“In addition to educating anglers and boaters about the threats of Didymo, we are considering potential regulation changes to prevent the spread of this invasive alga,” said VanPatten. “Public input in this process is very important.” 

Public meetings will be held at or near the following fish hatcheries:

·        Montauk State Park:  Searcy Building, Tuesday, March 15, 6 p.m.

·        Bennett Spring State Park:  Hatchery Building, Monday, March 21, 6 p.m.

·        Shepherd of the Hills Hatchery – Lake Tanyecomo:  U. S. Army Corps of Engineers’ Dewey Short Visitor Center at Table Rock Dam, Saturday, March 26, 1 p.m.

·        Roaring River State Park:  Emory Melton Inn and Conference Center, Thursday, April 7, 6 p.m.

·        Maramec Spring Park:  James Memorial Library Meeting Room, 300 W. Scioto St. in St. James, Monday, April 11, 6 p.m.

To help reduce the spread of Didymo, remember, “Check. Clean. Dry.”

·        Check all gear and equipment and remove any visible algae. Do not dispose of algae by putting it down a drain or into bodies of water.

·        Clean all gear and equipment with a solution of 2-percent bleach, 5-percent saltwater, or dishwashing detergent. Allow all equipment to stay in contact with the solution for at least one minute. Soak all soft items, such as felt-soled waders and life jackets, in the solution for at least 20 minutes.

·        Dry all gear and equipment for at least 48 hours by exposing it to sunlight. 

VanPatten added that replacing felt-soled waders with waders that have rubber or synthetic soles can also minimize the risk of spreading rock snot and other invasive species.

For more information about the meetings, contact VanPatten at 573-751-4115 ext. 3892 or mark.vanpatten@mdc.mo.gov.Fishing Missouri Trout
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