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Except for Antarctica, [4] leeches are found throughout the world but are at their most abundant in temperate lakes and ponds in the northern hemisphere. The majority of freshwater leeches are found in the shallow, vegetated areas on the edges of ponds, lakes and slow-moving streams; very few species tolerate fast-flowing water.
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Erpobdella obscura is a freshwater ribbon leech common in North America. It is a relatively large leech and is commonly used as bait by anglers for walleye and other sport fish. In Minnesota , live bait dealers annually harvest over 45,000 kg of bait-leeches, raising concerns of over-harvest.
Macrobdella decora, also known as the North American medicinal leech, is a species of freshwater leech found in much of eastern North America in freshwater habitats, although there is one disjunct population in northern Mexico. M. decora is a parasite of vertebrates, including humans, and an aquatic predator of eggs, larvae, and other ...
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Blank world map centred on the Americas (shore lines) Date: October 2006: Source: Tectonic plates (empty).svg created by Ævar Arnfjörð Bjarmason under PD and based on an USGS map: Author: Eric Gaba : SVG development
Macrobdella is a genus of leeches native to freshwater ecosystems of North America, especially Canada, Mexico, and the United States. [2] The genus is commonly referred to as North American medicinal leeches .
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