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Topic: Lake sturgeon

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	Lake Sturgeon, Acipenser fulvescens (Site not responding. Last check: 2007-10-26)
		The lake sturgeon prefers shallow areas of lakes and large rivers at depths from 5–9 m.
		Although the lake sturgeon is very large, it is not a predator of other fish, but instead hunts for a wide variety of animal and plant material in the bottom substrate.
		Lake sturgeon may live as long as 154 years, but age determinations are difficult in older individuals.
	www.arctic.uoguelph.ca /cpl/organisms/fish/fresh/Sturgeon/sturgeon.htm (530 words)

	Lake Sturgeon Fact Sheet
		Lake sturgeon spawn in the spring from May-June.
		The lake sturgeon is one of the longest-lived and slowest to mature freshwater fish species.
		The lake sturgeon is found primarily in freshwater lakes and large rivers in northeastern North America, but also occurs in the brackish waters of Hudson Bay and the St. Lawrence River.
	www.dec.state.ny.us /website/dfwmr/wildlife/endspec/lakestur.html (553 words)

	Honoring the ancient ones -- Wisconsin Natural Resources magazine
		Lake sturgeon are living fossils, relics from the Upper Cretaceous period of the Mesozoic era.
		Lake sturgeon rank as Wisconsin’s largest and oldest fish: a record 195-pounder was speared in Pokegama Lake in Vilas County in 1979, a 170-pounder was caught with hook and line from Yellow Lake in 1979, and an 82-year-old was taken from Lake Winnebago in 1953.
		The partners have transferred 80 sturgeon in the past five years and are on the verge of establishing an active spawning stock in a section of the Wolf River that has not seen spawning sturgeon in may decades.
	www.wnrmag.com /stories/2001/jun01/sturgeon.htm (2528 words)

	Lake sturgeon (Site not responding. Last check: 2007-10-26)
		Lake sturgeon spawn in late spring either within the lakes they inhabit, or, as is more often the case, after ascending small feeder streams.
		Although lake sturgeon populations have declined over much of their range, there is evidence that populations can recover when sufficient numbers of mature fish and adequate habitat are maintained.
		For example, the lake sturgeon population in Wisconsin's Lake Winnebago system was stable during the 1930's and 1940's, but the population increased after property owners began rip-rapping riverbanks with large rock in the 1950's to reduce erosion.
	wwwaux.cerc.cr.usgs.gov /micra/LAKESTUR.HTM (411 words)

	Lake sturgeon - Wikipedia, the free encyclopedia
		This sturgeon is a source of caviar and isinglass, and its oil was once used to fuel steamboats.
		The lake sturgeon was once a very abundant species in the Great Lakes, so common it was caught and discarded by fishermen seeking other species, but now it is rarely seen.
		Fishing for sturgeon is allowed on Black Lake in Michigan, for example, but the fishery is limited to five total fish taken each year, each over 36 inches and taken through the ice with spears.
	en.wikipedia.org /wiki/Lake_sturgeon (474 words)

	WDNR - Lake Sturgeon Biology, Distribution and Status in Wisconsin (Site not responding. Last check: 2007-10-26)
		The lake sturgeon occurs in the Mississippi, Lake Michigan, and Lake Superior drainage basins.
		In Lake Superior it is found in the comparatively shallow waters of Keweenaw Bay, in the vicinity of the Apostle Islands, and it is known to spawn in the Bad River (Ashland County).
		It is uncommon to rare in the lower Wisconsin River, Mississippi River, the Madison lakes, and Lakes Michigan and Superior.
	www.dnr.state.wi.us /org/water/fhp/fish/sturgeon/sturbiol.htm (355 words)

	National Factsheets - Fish Fact Sheet - Lake Sturgeon
		Other than spawning migrations, seasonal movements of the lake sturgeon are thought to consist of a move from shallow waters when these warm, into deeper water, a return to the shoals in fall, and a return to moderate depths in winter.
		Lake sturgeons feed almost exclusively on small organisms they obtain from the bottom by means of the protrusible, tube-like mouth and the sensory barbels.
		Lake sturgeon is now a gourmet item: the flesh, especially when smoked, is delicious although rich and oily, and the eggs are marketed as caviar.
	www.dfo-mpo.gc.ca /canwaters-eauxcan/infocentre/guidelines-conseils/factsheets-feuillets/national/lakesturgeon_e.asp (464 words)

	Sturgeon
		Lake sturgeon and pallid sturgeon are protected and must be returned to the water unharmed if captured.
		Lake Sturgeon (also known as rubbernose sturgeon or dogface sturgeon) is the largest of the three species.
		River sturgeons can be separated from the lake sturgeon by the shovelnose snout, 4 lobes on the lower lip, and the fringed barbels.
	www.mdc.mo.gov /fish/sport/sturgeon (517 words)

	Fisheries: Fish Species: Lake Sturgeon (Site not responding. Last check: 2007-10-26)
		Adult sturgeons are olive brown to grey on the back and sides, and white on the ventral surface of the head and body.
		Lake sturgeons reach sexual maturity at the age of 15 to 30 years, males maturing before females.
		The age of a sturgeon can be determined by counting the number of rings on the pectoral fins; the fish continues to grow as it ages.
	interactive.usask.ca /ski/fisheries/fish/types/sturgeon.html (718 words)

	New York's Sturgeon
		Atlantic sturgeon are anadromous, migrating from saltwater to spawn in freshwater.
		DEC is currently researching lake sturgeon populations in order to ensure their populations are properly protected, managed and, when feasible, enhanced.
		In addition to caviar, sturgeon were harvested for a number of purposes: sturgeon meat was delicious, especially smoked; the skin was tanned for leather; and the swim bladders were used for isinglass, a high quality gelatin used for pottery cement, waterproofing, and for clarifying wine and beer.
	www.dec.state.ny.us /website/dfwmr/fish/fishspecs/sturtext.html (2479 words)

	Wild Resource Conservation Program
		The lake sturgeon is the second largest of Pennsylvania's sturgeons, reaching seven feet in length.
		Lake sturgeon spawn for the first time when they're 1 5 to 20 years of age.
		Pollution abatement is proceeding in portions of Lake Erie and in the large rivers, but dams still block upstream movement of lake sturgeon.
	www.dcnr.state.pa.us /wrcf/lsturg.aspx (233 words)

	Lake Sturgeon
		Sturgeons live about half a century, but a sturgeon caught in Canada was estimated to be 154 years old.
		Sturgeons are most famous for their eggs, commonly refered to as caviar.
		The extinction of lake sturgeon is 100% preventable if we follow fishing guidlines and regulations, and most importantly having repect for the environment by not defacing it, or polluting.
	www2.ic.edu /cochran/ClassPages/205Spring03/Midiri/Sturgeon.html (1179 words)

	Michigan Sea Grant > Lake Sturgeon
		Lake Sturgeon (Acipenser fulvescens) were once abundant throughout the waters of the Great Lakes, especially in the rivers connecting Lake Huron to Lake Erie including the Detroit River.
		A lack of suitable spawning habitat appears to be limiting lake sturgeon reproduction, and therefore population restoration, in the Detroit River.
		Construction of sturgeon spawning reefs in areas of high current velocity near Belle Isle, using materials that encourage successful spawning in the St. Lawrence and Fox, Wolf and Winnebago Rivers, should enable sturgeon to reproduce and begin the recovery of a Detroit River population and the support of a western Lake Erie fishery.
	www.miseagrant.umich.edu /sturgeon/background.html (722 words)

	Fishes of Minnesota-Lake sturgeon (Site not responding. Last check: 2007-10-26)
		In the 1800s, lake sturgeons were abundant in many lakes and large rivers in the state.
		In rivers, lake sturgeons tend to live in the deepest parts of the channels or in deep pools.
		Lake sturgeon have been reintroduced to the Red River system, and recovery of populations in the upper St. Croix and Rainy river systems has been reasonably good.
	www.gen.umn.edu /research/fish/fishes/lake_sturgeon.html (713 words)

	DNR - Lake Sturgeon Acipenser fulvescens
		Lake sturgeons have a large protrusible, suctorial mouth on the bottom side of the head with 4 barbels in front of the mouth and beneath the snout.
		Lake sturgeons are listed as a threatened species in Michigan and either threatened or endangered by 19 of the 20 states within its original range in the United States.
		Lake sturgeons have retained primitive internal structures such as a cartilaginous vertebrae and a notochord, instead of calcified bone as found in modern fish.
	www.michigan.gov /dnr/0,1607,7-153-10364_18958-131946--,00.html (581 words)

	Lake Sturgeon Back in Milwaukee River after 100 Years (Site not responding. Last check: 2007-10-26)
		The DNR sees these sturgeon releases as milestones in the resurrection of the two rivers, and for Wisconsin's lake sturgeon management program, which is 100 years old this year.
		The agency points to its success in Lake Winnebago where the world's largest lake sturgeon population now flourishes, and now the DNR is working to restore lake sturgeon in other parts of its original range in Wisconsin.
		Female sturgeon do not start spawning until they are 20 to 25 years old, and males start at 10 years or so, so most of the biologists now working on the project will be retired when the fish released this week start their spawning runs.
	www.flmnh.ufl.edu /fish/innews/lakesturgeon2003.html (645 words)

	Journal Gazette \| 09/17/2006 \| Endangered sturgeon return (Site not responding. Last check: 2007-10-26)
		Sturgeon – prized for its caviar and smoked meat – are slowly starting to make a comeback in areas where water quality has improved.
		North of the river, sturgeon are thriving in Lake St. Clair and the St. Clair River.
		Georgia is restocking lake sturgeon in rivers in the northwest part of the state.
	www.fortwayne.com /mld/journalgazette/sports/15539212.htm (853 words)

	Great Lakes Lake Sturgeon Web - Biology
		Lake sturgeon are listed as either threatened or endangered by 19 of the 20 states within its original range in the United States.
		Lake sturgeon are the only sturgeon species endemic to the Great Lakes basin and are the largest freshwater fish indigenous to that system.
		Lake sturgeon are benthivores, feeding on small invertebrates such as insect larvae, crayfish, snails, clams, and leeches.
	www.fws.gov /midwest/sturgeon/biology.htm (1039 words)

	Lake Superior State University :: Aquatic Research Laboratory :: ARL Sturgeon Tagging
		After decades of clean-up and more robust environmental awareness, the question today becomes whether lake sturgeon in their role as ecological benchmarks are making a comeback, thanks to resource management and pollution control.
		Sturgeon caught for the first time are fitted with a PIT tag, along with an external “Floy” cinch tag secured to the dorsal fin.
		Sturgeon caught for the first time have an external “Floy” cinch tag secured to the dorsal fin, along with an internal PIT (passive integrated transponder) tag.
	www.lssu.edu /arl/vsturgeon.php (1008 words)

	Lake Sturgeon Restocking Program Considered
		This prehistoric leftover is the lake sturgeon, an ancient and primitive-looking fish with a cartilage skeleton and a shark-like tail.
		Lake sturgeons in Vermont are confined to Lake Champlain and are currently listed as a state endangered species.
		Information collected from a survey of adult sturgeon at spawning locations in Lake Champlain tributaries is needed to determine both the need for stocking and whether or not the existing lake sturgeon population could be used for a stocking program if one is implemented.
	www.harborwatch.com /news/sturgeon.html (444 words)

	Lake Sturgeon
		Lake Sturgeon are very unique in their appearance, somewhat resemblance of a Shark with it’s extended upper portion of the caudal fin.
		Lake Sturgeon are the slowest maturing fish in Alberta, maturing at approximately 20 years of age.
		Lake Sturgeon are bottom feeders that use their powerful sense of smell to search out food sources.
	www.fishalberta.com /Species/lake_sturgeon.htm (534 words)

	Spartanburg SC \| GoUpstate.com \| Spartanburg Herald-Journal (Site not responding. Last check: 2007-10-26)
		This sturgeon is a source of caviar and isinglass, and its oil was once used to fuel steamboats.
		The lake sturgeon was once a very abundant species in the Great Lakes, so common it was caught and discarded by fishermen seeking other species, but now it is rarely seen.
		Fishing for sturgeon is allowed on Black Lake in Michigan, for example, but the fishery is limited to five total fish taken each year, each over 36 inches and taken through the ice with spears.
	www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=Lake_sturgeon (450 words)

	Michigan DNR - Lake St. Clair Fisheries Research Station: 2000 St. Clair Lake Sturgeon Study Performance Report
		Since lake sturgeon are known to be capable of exceeding 50 years in age (Scott and Crossman 1973), year-classes prior to 1965 appeared under-represented in the catch.
		Growth of lake sturgeon in the St. Clair ecosystem was good, with some fish attaining a total length of 1 m as early as age 8.
		In contrast, lake sturgeon in Michigan's inland waters grow slower, particularly from age 1 to age 15, and attain a mean length of 1270 mm at age 22 (Baker 1980).
	midwest.fws.gov /sturgeon/mtclemens_02update.htm (1705 words)

	Lake sturgeon harvest tag - Baudette Area Fisheries Office: Minnesota DNR
		The Lake of the Woods/Rainy River Lake sturgeon populations are still recovering from over exploitation and poor water quality that negatively impacted spawning and nursery habitats.
		Mean annual lake sturgeon harvest for the past three years (2001-2003) is estimated to be 13,510 pounds.
		Lake of the Woods/Rainy River lake sturgeon goals were established largely from direct comparison with the Lake Winnebago lake sturgeon fishery.
	www.dnr.state.mn.us /areas/fisheries/baudette/sturgeontag.html (435 words)

	Tennessee Aquarium Newsroom - News Release
		The lake sturgeon species is rare and nearing extinction in the Coosa, Missouri, Ohio and middle Mississippi drainages.
		The sturgeon normally leave lakes in the spawning migration not long after the spawning rivers are free of ice.
		Sturgeon are primarily bottom dwellers, and feed on worms, insect larvae, snails, clams, some fish and fish eggs, bits of aquatic plants and other litter from the floor of a lake or stream.
	www.tennis.org /newsroom/sturgenfacts.asp (636 words)

	FRO Projects, Lake Sturgeon: White Earth Indian Reservation
		Historically, lake sturgeon were found in the Red River, its tributaries, and a number of lakes in the watershed.
		Since the turn of the century, lake sturgeon populations have declined due mainly to the construction of dams and water quality problems.
		Although their diet consists largely of insect larvae and crayfish, the reintroduction of lake sturgeon is not expected to impact populations of important game fish species.
	www.fws.gov /Midwest/LaCrosseFisheries/projects/sturgeon_white_earth.html (451 words)

	Lake Sturgeon
		sturgeon was found dead on the shores of Rush Lake (Chisago County) in 1947, and a whopper reported to weigh in at 236 lbs.
		A sturgeon fishery in the Lake of the Woods of immense economic potential was destroyed by early commercial fishermen in search of walleye.
		Sturgeon fishing is limited, and generally prohibited during the spring spawning period (mid-May through the end of June).
	www.rook.org /earl/bwca/nature/fish/acipenser.html (616 words)

	Lake Sturgeon Sighted
		One of the sturgeon reported in Ohio waters this year was the recapture of a fish tagged from a current monitoring project in the Lake St. Clair and Detroit River region; the first recapture outside the Lake St. Clair/Detroit River system.
		Lake sturgeon provided a lucrative commercial fishery across the Great Lakes in the mid-1800s as society acquired a taste for caviar and smoked sturgeon.
		Other contributing factors in the sturgeon decline were pollution and the damming of rivers, preventing sturgeon from returning to spawning grounds.
	www.dnr.state.oh.us /news/nov01/1129sturgeon.htm (592 words)

	Lake Sturgeon - Alberta Sustainable Resource Development
		Instead of scales, the sturgeon's large brown or grey body is covered with tough, leather-like tissue and five rows of bony plates.
		The biggest sturgeon reported in Alberta weighed 48 kg (105 lbs) and was 155 cm (61 inches) in length.
		Sturgeon fishing is very restricted to preserve this unusual and interesting species.
	www.srd.gov.ab.ca /fw/fishing/sturgeon.html (218 words)

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