| Lake Rasmussen | |
|---|---|
 View from Lake Rasmussen Park | |
  Lake Rasmussen  Lake Rasmussen | |
| Location | Duvall, Washington |
| Coordinates | 47°44′28″N121°58′37″W / 47.7410544°N 121.9768297°W |
| Basin countries | United States |
| Surface elevation | 259 ft (79 m) |
| References | [1] |
Lake Rasmussen is a small lake in Duvall, Washington, a city in King County. The lake is home to a small public park. It has suffered from infestation by invasive aquatic weeds.
Lake Rasmussen has a small public park on its western shore. The park includes picnic tables and wildlife viewing opportunities. [2]
In 2021 an eight-year old discovered invasive Egeria densa in the lake. [3] [4] Egeria densa is a noxious aquatic weed that grows densely, depriving native species of habitat and oxygen. This weed had never been found in the local watershed before, and it is speculated to come from an aquarium that was dumped into the lake. Goldfish were also found, further confirming this hypothesis. [4]
King County noted that Egeria was not yet widespread in the watershed when it was discovered, so herbicides were used to control the weed. [5]
Salvinia molesta, commonly known as giant salvinia, or as kariba weed after it infested a large portion of Lake Kariba between Zimbabwe and Zambia, is an aquatic fern, native to south-eastern Brazil. It is a free-floating plant that does not attach to the soil, but instead remains buoyant on the surface of a body of water. The fronds are 0.5–4 cm long and broad, with a bristly surface caused by the hair-like strands that join at the end to form eggbeater shapes. They are used to provide a waterproof covering. These fronds are produced in pairs also with a third modified root-like frond that hangs in the water. It has been accidentally introduced or escaped to countless lakes throughout the United States, including Caddo Lake in Texas, where the invasive species has done extensive damage, killing off other life.
The grass carp is a species of large herbivorous freshwater fish in the family Cyprinidae, native to the Pacific Far East, with a native range stretching from northern Vietnam to the Amur River on the Sino-Russian border. This Asian carp is the only species of the genus Ctenopharyngodon.
Elodea is a genus of 6 species of aquatic plants often called the waterweeds described as a genus in 1803. Classified in the frog's-bit family (Hydrocharitaceae), Elodea is native to the Americas and is also widely used as aquarium vegetation and laboratory demonstrations of cellular activities. It lives in fresh water. An older name for this genus is Anacharis, which serves as a common name in North America.
Hydrilla (waterthyme) is a genus of aquatic plant, usually treated as containing just one species, Hydrilla verticillata, though some botanists divide it into several species. It is native to the cool and warm waters of the Old World in Asia, Africa and Australia, with a sparse, scattered distribution; in Australia from Northern Territory, Queensland, and New South Wales.
Elodea canadensis is a perennial aquatic plant, or submergent macrophyte, native to most of North America. It has been introduced widely to regions outside its native range and was first recorded from the British Isles in about 1836.
Myriophyllum aquaticum is a flowering plant, a vascular dicot, commonly called parrot's-feather and parrot feather watermilfoil.
The New Zealand mud snail is a species of very small freshwater snail with a gill and an operculum. This aquatic gastropod mollusk is in the family Tateidae.
Melaleuca quinquenervia, commonly known as the broad-leaved paperbark, paper bark tea tree, punk tree or niaouli, is a small- to medium-sized tree of the myrtle family, Myrtaceae. It grows as a spreading tree up to 20 m (70 ft) tall, with its trunk covered by a white, beige and grey thick papery bark. The grey-green leaves are egg-shaped, and cream or white bottlebrush-like flowers appear from late spring to autumn. It was first formally described in 1797 by the Spanish naturalist Antonio José Cavanilles.
Egeria densa, the large-flowered waterweed or Brazilian waterweed, is a species of Egeria native to warm temperate South America in southeastern Brazil, Argentina, Chile and Uruguay. It is considered a problematic invasive species due to its use in home aquariums and subsequent release into non-native ecosystems.
Cabomba caroliniana, commonly known as Carolina fanwort and various other names, is an aquatic perennial herbaceous plant native to North and South America. Having been a popular aquarium plant, it has been exported around the world, and has become an invasive species in Europe and Australia.
Utricularia inflata, commonly known as the swollen bladderwort, inflated bladderwort, or large floating bladderwort, is a large suspended aquatic carnivorous plant that belongs to the genus Utricularia. It is a perennial that is native to the southeastern coastal plains of the United States. It has often been confused with U. radiata, which is similar but smaller than U. inflata. Since 1980, U. inflata has been reported to exist in locations beyond its traditional range, such as the Adirondack Mountains in New York, southeastern Massachusetts, and in Washington State. Studies on the populations in the Adirondacks suggest that an introduction of U. inflata to a location where it naturalizes can lead to altered sediment chemistry by reducing the net primary productivity of native species. It is also listed by the state of Washington as a problematic species because of the dense mat-forming habit of this aquatic Utricularia. It is one of the few carnivorous plants that can be invasive.
Smith and Bybee Wetlands Natural Area is a public park and nature reserve between the Columbia Slough and the Columbia River in Portland, Oregon. At about 2,000 acres (810 ha), it is one of the largest urban freshwater wetlands in the United States. Metro, the regional government for the Oregon part of the Portland metropolitan area, manages the park. A covered shelter, restrooms, a paved walkway, and a canoe launch lie on the north side of the natural area.
Boeing Creek is a stream in the U.S. state of Washington, located in the city of Shoreline, just north of Seattle. It is about 1.6 miles (2.6 km) long and empties into Puget Sound. The creek is heavily modified along its course, and in many places has been diverted into culverts. The watershed of Boeing Creek is about 11.2 square miles (29 km2) in size, with two main tributaries aside from the mainstem. The creek takes its name from William Boeing, who built a mansion along the creek in 1913. Despite the river modifications and stormwater pollution, the creek supports a variety of riparian habitats, native animals and fishes.
An aquatic weed harvester, also known as a water mower, mowing boat and weed cutting boat, is an aquatic machine specifically designed for inland watercourse management to cut and harvest underwater weeds, reeds and other aquatic plant life. The action of removing aquatic plant life in such a manner has been referred to as "aquatic harvesting".
Forbes Creek is a small, moderately sloping creek wholly within the city of Kirkland, Washington. From its headwaters on the Rose Hill moraine to its outlet at Juanita Bay is c. 2 miles (3.2 km) as the crow flies. The northern extent of its basin is a nearly east–west line at NE 116th Street; the eastern boundary is at the Rose Hill ridgeline, roughly north–south at 132nd Avenue NE. The southern extent is irregular trending roughly from Kirkland's high point at the northeast corner of Bridle Trails State Park through South Rose Hill Park, to Lake Washington at 16 feet (4.9 m) above sea level.
Medicine Lake is an inland lake located approximately 8 miles northwest of downtown Minneapolis, Minnesota. The lake lies within Hennepin County and is surrounded by two municipalities. At 902 acres, it is Hennepin County's second largest lake behind Lake Minnetonka and is popular among boaters, sailors, and fishers. Medicine Lake's most significant tributary is Plymouth Creek, which enters the lake at West Medicine Lake Park. The lake is also fed by rain and drainage from nearby cities, including Medicine Lake, Plymouth, New Hope, Golden Valley and Minnetonka.
Pipe Lake and Lake Lucerne are two lakes joined by a natural canal in King County, Washington, United States. The larger Pipe Lake is located on the border of Covington and Maple Valley, while the smaller Lake Lucerne is located entirely within Maple Valley. Both lakes are completely surrounded by private property.
Spring Lake is located in King County, Washington, in the Maple Heights-Lake Desire census-designated place. It sits next to Spring Lake/Lake Desire Park, on the opposite side of Lake Desire. The lake also has fishing opportunities.
Lake Fenwick is located in King County, Washington, United States, mostly within the city of Kent. The lake is known for its recreational opportunities including fishing and a large public park. The lake has suffered from poor water quality, algae, and infestation by aquatic weeds. Fenwick fishing rods are named after the lake.
Bow Lake is a small lake in SeaTac, Washington, a city in King County. It is located next to Seattle–Tacoma International Airport, just across Route 99. The lake has played a key role in the airport's history, and the airport was originally named for it. Due to rapid urbanization and alteration of the lake's watershed, water quality has deteriorated significantly. A major drinking water pipeline runs near the lake.