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The Chincoteague National Wildlife Refuge is a 14,000-acre (57 km 2) wildlife preserve operated by the U.S. Fish & Wildlife Service.It is primarily located on the Virginia half of Assateague Island with portions (only about 3%) located on the Maryland side of the island, as well as Morris Island and Wildcat Marsh.
The Aquatic Nuisance Species Task Force (hereafter, "the Task Force") was created by NANPCA as the "coordinating body in developing and implementing the national program for prevention, research, monitoring, and control of infestations of nonindigenous aquatic species." [26] It is still operating today. NISA reauthorizes the Task Force, as ...
Aquatic plant harvesting is often done to clear waters for navigation and recreation, as well as for the purpose of ridding the environment of invasive plant species. However, this aquatic plant management style can also have negative effects on the environment such as harming non-target plants and animals, increasing turbidity, and potentially ...
In 1993, the OTA estimated that a total of $100 million is invested annually in invasive species aquatic weed control in the U.S. [19] Introduced rats cause more than $19 billion per year in damages, [20] exotic fish cause up to $5.4 billion annually, and the total costs of introduced weeds are estimated at around $27 billion annually. [21]
Besides breeding quickly, each nutria consumes large amounts of aquatic vegetation. [41] An individual consumes about 25% of its body weight daily, and feeds year-round. [31] [42] Being one of the world's larger extant rodents, a mature, healthy nutria averages 5.4 kg (11 lb 14 oz) in weight, but they can reach as much as 10 kg (22 lb).
Muskrats feed mostly on cattail and other aquatic vegetation but also eat small animals. Ondatra zibethicus is the only extant species in the genus Ondatra; its closest relative is the round-tailed muskrat (Neofiber alleni). It is the largest species in the subfamily Arvicolinae, which includes 142 other species of rodents, mostly voles and ...