HIGGINS' EYE CLAM - Revision history

Randylyon at 18:41, 27 June 2021

2021-06-27T18:41:19Z

← Older revision		Revision as of 18:41, 27 June 2021
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	[[Image:clams.gif\|left\|thumb\|250px\|Higgins' Eye Clam]]HIGGINS' EYE CLAM. The Higgins' Eye clam, a federally endangered specie since 1976, first gained community attention when its discovery temporarily threatened construction of the [[DUBUQUE-WISCONSIN BRIDGE]]. Found only in the waters of the Upper [[MISSISSIPPI RIVER]] and usually in sand or mud near the shoreline, the clam's thick olive green shells range from four to five inches long. (1)		[[Image:clams.gif\|left\|thumb\|250px\|Higgins' Eye Clam]]HIGGINS' EYE CLAM. The Higgins' Eye clam, a federally endangered specie since 1976, first gained community attention when its discovery temporarily threatened construction of the [[DUBUQUE-WISCONSIN BRIDGE]]. Found only in the waters of the Upper [[MISSISSIPPI RIVER]] and usually in sand or mud near the shoreline, the clam's thick olive green shells range from four to five inches long. (1)

	In 1978 [[LORAS COLLEGE]] Professor Edward Cawley and a team received an $8,000 contract from the Iowa Department of Transportation to check the construction site for the endangered clam. From thousands of clams brought to the surface during the 3 1/2 week study, a single, ten-year-old female Higgins' Eye clam was discovered near the Wisconsin shore 950 feet downstream from the proposed construction site of the Dubuque Wisconsin bridge. (2) Young Higgins' Eye are usually carried as parasites of sauger pike until the clams mature. ~~They~~ then fall off the gills of the fish to the river bottom to continue growing.		In 1978 [[LORAS COLLEGE]] Professor Edward Cawley and a team received an $8,000 contract from the Iowa Department of Transportation to check the construction site for the endangered clam. From thousands of clams brought to the surface during the 3 1/2 week study, a single, ten-year-old female Higgins' Eye clam was discovered near the Wisconsin shore 950 feet downstream from the proposed construction site of the Dubuque Wisconsin bridge. (2) Young Higgins' Eye are usually carried as parasites of sauger pike until the clams mature. The tiny mussels then fall off the gills of the fish to the river bottom to continue growing.

	In 1880 the Higgins' Eye, named supposedly for the man who discovered it near Muscatine in 1857, were relatively common. By 1978, however, there were only four known locations of the clam. Researchers believe the population of the clam has been cut in half within the last one hundred years from such causes as heavy silting due to the construction of dams, over-harvesting during the years of the [[BUTTON INDUSTRY]], turbulence from boat propellers and various types of pollution. Federal regulations required that federally funded projects must not disturb an endangered species, or that the species must be relocated to a suitable place. (3)		In 1880 the Higgins' Eye, named supposedly for the man who discovered it near Muscatine in 1857, were relatively common. By 1978, however, there were only four known locations of the clam. Researchers believe the population of the clam has been cut in half within the last one hundred years from such causes as heavy silting due to the construction of dams, over-harvesting during the years of the [[BUTTON INDUSTRY]], turbulence from boat propellers and various types of pollution. Federal regulations required that federally funded projects must not disturb an endangered species, or that the species must be relocated to a suitable place. (3)

Randylyon at 14:41, 9 May 2021

2021-05-09T14:41:45Z

← Older revision		Revision as of 14:41, 9 May 2021
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	[[Image:clams.gif\|left\|thumb\|250px\|Higgins' Eye Clam]]HIGGINS' EYE CLAM. The Higgins' Eye clam, a federally endangered specie since 1976, first gained community attention when its discovery temporarily threatened construction of the [[DUBUQUE-WISCONSIN BRIDGE]]. Found only in the waters of the Upper [[MISSISSIPPI RIVER]] and usually in sand or mud near the shoreline, the clam's thick olive green shells range from four to five inches long.		[[Image:clams.gif\|left\|thumb\|250px\|Higgins' Eye Clam]]HIGGINS' EYE CLAM. The Higgins' Eye clam, a federally endangered specie since 1976, first gained community attention when its discovery temporarily threatened construction of the [[DUBUQUE-WISCONSIN BRIDGE]]. Found only in the waters of the Upper [[MISSISSIPPI RIVER]] and usually in sand or mud near the shoreline, the clam's thick olive green shells range from four to five inches long. (1)

	In 1978 [[LORAS COLLEGE]] Professor Edward Cawley and a team received an $8,000 contract from the Iowa Department of Transportation to check the construction site for the endangered clam. From thousands of clams brought to the surface, a single, ten-year-old female Higgins' Eye clam was discovered near the Wisconsin shore 950 feet downstream from the proposed construction site of the Dubuque Wisconsin bridge. Young Higgins' Eye are usually carried as parasites of sauger pike until the clams mature. They then fall off the gills of the fish to the river bottom to continue growing.		In 1978 [[LORAS COLLEGE]] Professor Edward Cawley and a team received an $8,000 contract from the Iowa Department of Transportation to check the construction site for the endangered clam. From thousands of clams brought to the surface during the 3 1/2 week study, a single, ten-year-old female Higgins' Eye clam was discovered near the Wisconsin shore 950 feet downstream from the proposed construction site of the Dubuque Wisconsin bridge. (2) Young Higgins' Eye are usually carried as parasites of sauger pike until the clams mature. They then fall off the gills of the fish to the river bottom to continue growing.

	In 1880 the Higgins' Eye, named supposedly for the man who discovered it near Muscatine in 1857, were relatively common. By 1978, however, there were only four known locations of the clam. Researchers believe the population of the clam has been cut in half within the last one hundred years from such causes as heavy silting due to the construction of dams, over-harvesting during the years of the [[BUTTON INDUSTRY]], turbulence from boat propellers and various types of pollution.		In 1880 the Higgins' Eye, named supposedly for the man who discovered it near Muscatine in 1857, were relatively common. By 1978, however, there were only four known locations of the clam. Researchers believe the population of the clam has been cut in half within the last one hundred years from such causes as heavy silting due to the construction of dams, over-harvesting during the years of the [[BUTTON INDUSTRY]], turbulence from boat propellers and various types of pollution. Federal regulations required that federally funded projects must not disturb an endangered species, or that the species must be relocated to a suitable place. (3)

	Discovery of the single clam proved not to be a serious problem. The clam had been added to the endangered species list long after the environmental impact reports of the bridge had been filed. It was expected that efforts would be made to protect the habitat.		Discovery of the single clam proved not to be a serious problem. The clam had been added to the endangered species list long after the environmental impact reports of the bridge had been filed. It was expected that efforts would be made to protect the habitat.

	In the fall of 2016 an extern from the [[NATIONAL MISSISSIPPI RIVER MUSEUM AND AQUARIUM]] challenged high school students from the [[DUBUQUE COMMUNITY SCHOOL DISTRICT]], [[WAHLERT CATHOLIC HIGH SCHOOL]], Western Dubuque, and districts from Fennimore, Wisconsin and Lancaster, Wisconsin to design devices in which to raise the mussel. Following research of the mussel's needs at different stages in their life cycle, models were created and presented to the class. Recordings of the presentations were sent to the museum for consideration. (1)		In the fall of 2016 an extern from the [[NATIONAL MISSISSIPPI RIVER MUSEUM AND AQUARIUM]] challenged high school students from the [[DUBUQUE COMMUNITY SCHOOL DISTRICT]], [[WAHLERT CATHOLIC HIGH SCHOOL]], Western Dubuque, and districts from Fennimore, Wisconsin and Lancaster, Wisconsin to design devices in which to raise the mussel. Following research of the mussel's needs at different stages in their life cycle, models were created and presented to the class. Recordings of the presentations were sent to the museum for consideration. (4)

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	Source:		Source:

	~~Ann Schaal~~

	Haws, Dick. "Rare Clam Sets Bridge Plans Astir, ''The Milwaukee Journal'', August 15, 1978, p. 54. Online: http://news.google.com/newspapers?nid=1499&dat=19780815&id=AGgaAAAAIBAJ&sjid=kikEAAAAIBAJ&pg=6945,2957571		1. Haws, Dick. "Rare Clam Sets Bridge Plans Astir, ''The Milwaukee Journal'', August 15, 1978, p. 54. Online: http://news.google.com/newspapers?nid=1499&dat=19780815&id=AGgaAAAAIBAJ&sjid=kikEAAAAIBAJ&pg=6945,2957571

	1. "Mussel Nurseries," ''Big River'', January-February, 2017, p. 11		2. "One Rare Clam Found at Site," ''Telegraph Herald,'' July 7, 1978, p. 1

			3. Ibid.

			4. "Mussel Nurseries," ''Big River'', January-February, 2017, p. 11

Randylyon at 19:39, 27 February 2017

2017-02-27T19:39:59Z

← Older revision		Revision as of 19:39, 27 February 2017
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	Discovery of the single clam proved not to be a serious problem. The clam had been added to the endangered species list long after the environmental impact reports of the bridge had been filed. It was expected that efforts would be made to protect the habitat.		Discovery of the single clam proved not to be a serious problem. The clam had been added to the endangered species list long after the environmental impact reports of the bridge had been filed. It was expected that efforts would be made to protect the habitat.

			In the fall of 2016 an extern from the [[NATIONAL MISSISSIPPI RIVER MUSEUM AND AQUARIUM]] challenged high school students from the [[DUBUQUE COMMUNITY SCHOOL DISTRICT]], [[WAHLERT CATHOLIC HIGH SCHOOL]], Western Dubuque, and districts from Fennimore, Wisconsin and Lancaster, Wisconsin to design devices in which to raise the mussel. Following research of the mussel's needs at different stages in their life cycle, models were created and presented to the class. Recordings of the presentations were sent to the museum for consideration. (1)

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	Ann Schaal		Ann Schaal

	Haws, Dick. "Rare Clam Sets Bridge Plans Astir," The Milwaukee Journal, August 15, 1978, p. 54. Online: http://news.google.com/newspapers?nid=1499&dat=19780815&id=AGgaAAAAIBAJ&sjid=kikEAAAAIBAJ&pg=6945,2957571		Haws, Dick. "Rare Clam Sets Bridge Plans Astir, ''The Milwaukee Journal'', August 15, 1978, p. 54. Online: http://news.google.com/newspapers?nid=1499&dat=19780815&id=AGgaAAAAIBAJ&sjid=kikEAAAAIBAJ&pg=6945,2957571

			1. "Mussel Nurseries," ''Big River'', January-February, 2017, p. 11

Randylyon at 04:13, 17 October 2016

2016-10-17T04:13:19Z

← Older revision		Revision as of 04:13, 17 October 2016
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	[[Image:clams.gif\|left\|thumb\|250px\|Higgins' Eye Clam]]HIGGINS' EYE CLAM. The Higgins' Eye clam, a federally endangered specie since 1976, first gained community attention when its discovery temporarily threatened construction of the [[DUBUQUE-WISCONSIN BRIDGE]]. Found only in the waters of the Upper [[MISSISSIPPI RIVER]] and usually in sand or mud near the shoreline, the clam's thick olive green shells range from four to five inches long.		[[Image:clams.gif\|left\|thumb\|250px\|Higgins' Eye Clam]]HIGGINS' EYE CLAM. The Higgins' Eye clam, a federally endangered specie since 1976, first gained community attention when its discovery temporarily threatened construction of the [[DUBUQUE-WISCONSIN BRIDGE]]. Found only in the waters of the Upper [[MISSISSIPPI RIVER]] and usually in sand or mud near the shoreline, the clam's thick olive green shells range from four to five inches long.

	In 1978 [[LORAS COLLEGE]] Professor Edward ~~Calley~~ and a team received an $8,000 contract from the Iowa Department of Transportation to check the construction site for the endangered clam. From thousands of clams brought to the surface, a single, ten-year-old female Higgins' Eye clam was discovered near the Wisconsin shore 950 feet downstream from the proposed construction site of the Dubuque Wisconsin bridge. Young Higgins' Eye are usually carried as parasites of sauger pike until the clams mature. They then fall off the gills of the fish to the river bottom to continue growing.		In 1978 [[LORAS COLLEGE]] Professor Edward Cawley and a team received an $8,000 contract from the Iowa Department of Transportation to check the construction site for the endangered clam. From thousands of clams brought to the surface, a single, ten-year-old female Higgins' Eye clam was discovered near the Wisconsin shore 950 feet downstream from the proposed construction site of the Dubuque Wisconsin bridge. Young Higgins' Eye are usually carried as parasites of sauger pike until the clams mature. They then fall off the gills of the fish to the river bottom to continue growing.

	In 1880 the Higgins' Eye, named supposedly for the man who discovered it near Muscatine in 1857, were relatively common. By 1978, however, there were only four known locations of the clam. Researchers believe the population of the clam has been cut in half within the last one hundred years from such causes as heavy silting due to the construction of dams, over-harvesting during the years of the [[BUTTON INDUSTRY]], turbulence from boat propellers and various types of pollution.		In 1880 the Higgins' Eye, named supposedly for the man who discovered it near Muscatine in 1857, were relatively common. By 1978, however, there were only four known locations of the clam. Researchers believe the population of the clam has been cut in half within the last one hundred years from such causes as heavy silting due to the construction of dams, over-harvesting during the years of the [[BUTTON INDUSTRY]], turbulence from boat propellers and various types of pollution.
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	---		---

			Source:

			Ann Schaal

	Haws, Dick. "Rare Clam Sets Bridge Plans Astir," The Milwaukee Journal, August 15, 1978, p. 54. Online: http://news.google.com/newspapers?nid=1499&dat=19780815&id=AGgaAAAAIBAJ&sjid=kikEAAAAIBAJ&pg=6945,2957571		Haws, Dick. "Rare Clam Sets Bridge Plans Astir," The Milwaukee Journal, August 15, 1978, p. 54. Online: http://news.google.com/newspapers?nid=1499&dat=19780815&id=AGgaAAAAIBAJ&sjid=kikEAAAAIBAJ&pg=6945,2957571

Randylyon at 03:08, 31 December 2013

2013-12-31T03:08:36Z

← Older revision		Revision as of 03:08, 31 December 2013
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	[[Image:clams.gif\|left\|thumb\|250px\|~~Higins~~' Eye Clam]]HIGGINS' EYE CLAM. The Higgins' Eye clam, a federally endangered specie since 1976, first gained community attention when its discovery temporarily threatened construction of the [[DUBUQUE-WISCONSIN BRIDGE]]. Found only in the waters of the Upper [[MISSISSIPPI RIVER]] and usually in sand or mud near the shoreline, the clam's thick olive green shells range from four to five inches long.		[[Image:clams.gif\|left\|thumb\|250px\|Higgins' Eye Clam]]HIGGINS' EYE CLAM. The Higgins' Eye clam, a federally endangered specie since 1976, first gained community attention when its discovery temporarily threatened construction of the [[DUBUQUE-WISCONSIN BRIDGE]]. Found only in the waters of the Upper [[MISSISSIPPI RIVER]] and usually in sand or mud near the shoreline, the clam's thick olive green shells range from four to five inches long.

	In 1978 [[LORAS COLLEGE]] Professor Edward Calley and a team received an $8,000 contract from the Iowa Department of Transportation to check the construction site for the endangered clam. From thousands of clams brought to the surface, a single, ten-year-old female Higgins' Eye clam was discovered near the Wisconsin shore 950 feet downstream from the proposed construction site of the Dubuque Wisconsin bridge. Young Higgins' Eye are usually carried as parasites of sauger pike until the clams mature. They then fall off the gills of the fish to the river bottom to continue growing.		In 1978 [[LORAS COLLEGE]] Professor Edward Calley and a team received an $8,000 contract from the Iowa Department of Transportation to check the construction site for the endangered clam. From thousands of clams brought to the surface, a single, ten-year-old female Higgins' Eye clam was discovered near the Wisconsin shore 950 feet downstream from the proposed construction site of the Dubuque Wisconsin bridge. Young Higgins' Eye are usually carried as parasites of sauger pike until the clams mature. They then fall off the gills of the fish to the river bottom to continue growing.

Randylyon at 03:08, 31 December 2013

2013-12-31T03:08:03Z

← Older revision		Revision as of 03:08, 31 December 2013
Line 1:		Line 1:
	[[Image:clams.gif\|left\|thumb\|250px\|Higins' Eye Clam]]HIGGINS' EYE CLAM~~. Possibly the tri-state's most infamous mollusk~~. The Higgins' Eye clam, a federally endangered specie since 1976, first gained community attention when its discovery temporarily threatened construction of the [[DUBUQUE-WISCONSIN BRIDGE]]. Found only in the waters of the Upper [[MISSISSIPPI RIVER]] and usually in sand or mud near the shoreline, the clam's thick olive green shells range from four to five inches long. ~~This made~~ the Higgins' Eye ~~an important source~~ of ~~material~~ for the ~~[[BUTTON INDUSTRY]]~~. ~~Hunted for its commercial value~~, the ~~number~~ of ~~clams declined further when~~ construction of [[~~LOCKS~~]] and ~~dams changed~~ the ~~river~~ habitat.		[[Image:clams.gif\|left\|thumb\|250px\|Higins' Eye Clam]]HIGGINS' EYE CLAM. The Higgins' Eye clam, a federally endangered specie since 1976, first gained community attention when its discovery temporarily threatened construction of the [[DUBUQUE-WISCONSIN BRIDGE]]. Found only in the waters of the Upper [[MISSISSIPPI RIVER]] and usually in sand or mud near the shoreline, the clam's thick olive green shells range from four to five inches long.

			In 1978 [[LORAS COLLEGE]] Professor Edward Calley and a team received an $8,000 contract from the Iowa Department of Transportation to check the construction site for the endangered clam. From thousands of clams brought to the surface, a single, ten-year-old female Higgins' Eye clam was discovered near the Wisconsin shore 950 feet downstream from the proposed construction site of the Dubuque Wisconsin bridge. Young Higgins' Eye are usually carried as parasites of sauger pike until the clams mature. They then fall off the gills of the fish to the river bottom to continue growing.

			In 1880 the Higgins' Eye, named supposedly for the man who discovered it near Muscatine in 1857, were relatively common. By 1978, however, there were only four known locations of the clam. Researchers believe the population of the clam has been cut in half within the last one hundred years from such causes as heavy silting due to the construction of dams, over-harvesting during the years of the [[BUTTON INDUSTRY]], turbulence from boat propellers and various types of pollution.

			Discovery of the single clam proved not to be a serious problem. The clam had been added to the endangered species list long after the environmental impact reports of the bridge had been filed. It was expected that efforts would be made to protect the habitat.

			---

			Haws, Dick. "Rare Clam Sets Bridge Plans Astir," The Milwaukee Journal, August 15, 1978, p. 54. Online: http://news.google.com/newspapers?nid=1499&dat=19780815&id=AGgaAAAAIBAJ&sjid=kikEAAAAIBAJ&pg=6945,2957571

	Pockets of Higgins' Eye clams have been discovered near the Wisconsin side of the Dubuque Wisconsin bridge and off [[CITY ISLAND]]. Young Higgins' Eye are usually carried as parasites of sauger pike until the clams mature to the stage when they fall to the river bottom to continue growing.

	Higgins' Eye clams, once abundant from Minnesota to Louisiana, are not found below cities or industrial areas where water quality is poor. Researchers believe the population of the clam has been cut in half within the last one hundred years from such causes as heavy silting, over-harvesting, turbulence from boat propellers and various types of pollution.


	[[Category: Environmental]]		[[Category: Environmental]]

Randylyon at 21:19, 3 March 2010

2010-03-03T21:19:00Z

← Older revision		Revision as of 21:19, 3 March 2010
Line 1:		Line 1:
	[[Image:clams.gif\|left\|thumb\|250px\|Higins' Eye Clam]]HIGGINS' EYE CLAM. Possibly the tri-state's most infamous mollusk. The Higgins' Eye clam, a federally endangered specie since 1976, first gained community attention when its discovery temporarily threatened construction of the [[DUBUQUE-WISCONSIN BRIDGE]]. Found only in the waters of the Upper [[MISSISSIPPI RIVER]] and usually in sand or mud near the shoreline, the clam's thick olive green shells range from four to five inches long. This made the Higgins' Eye an important source of material for the [[BUTTON INDUSTRY]]. Hunted for its commercial value, the number of clams declined further when construction of [[LOCKS]] and dams changed the river habitat.		[[Image:clams.gif\|left\|thumb\|250px\|Higins' Eye Clam]]HIGGINS' EYE CLAM. Possibly the tri-state's most infamous mollusk. The Higgins' Eye clam, a federally endangered specie since 1976, first gained community attention when its discovery temporarily threatened construction of the [[DUBUQUE-WISCONSIN BRIDGE]]. Found only in the waters of the Upper [[MISSISSIPPI RIVER]] and usually in sand or mud near the shoreline, the clam's thick olive green shells range from four to five inches long. This made the Higgins' Eye an important source of material for the [[BUTTON INDUSTRY]]. Hunted for its commercial value, the number of clams declined further when construction of [[LOCKS]] and dams changed the river habitat.

	Pockets of Higgins' Eye clams have been discovered near the Wisconsin side of the Dubuque Wisconsin bridge and off ~~Chaplain Schmitt Island~~. Young Higgins' Eye are usually carried as parasites of sauger pike until the clams mature to the stage when they fall to the river bottom to continue growing.		Pockets of Higgins' Eye clams have been discovered near the Wisconsin side of the Dubuque Wisconsin bridge and off [[CITY ISLAND]]. Young Higgins' Eye are usually carried as parasites of sauger pike until the clams mature to the stage when they fall to the river bottom to continue growing.

	Higgins' Eye clams, once abundant from Minnesota to Louisiana, are not found below cities or industrial areas where water quality is poor. Researchers believe the population of the clam has been cut in half within the last one hundred years from such causes as heavy silting, over-harvesting, turbulence from boat propellers and various types of pollution.		Higgins' Eye clams, once abundant from Minnesota to Louisiana, are not found below cities or industrial areas where water quality is poor. Researchers believe the population of the clam has been cut in half within the last one hundred years from such causes as heavy silting, over-harvesting, turbulence from boat propellers and various types of pollution.

Randylyon at 20:53, 9 December 2008

2008-12-09T20:53:04Z

← Older revision		Revision as of 20:53, 9 December 2008
Line 4:		Line 4:

	Higgins' Eye clams, once abundant from Minnesota to Louisiana, are not found below cities or industrial areas where water quality is poor. Researchers believe the population of the clam has been cut in half within the last one hundred years from such causes as heavy silting, over-harvesting, turbulence from boat propellers and various types of pollution.		Higgins' Eye clams, once abundant from Minnesota to Louisiana, are not found below cities or industrial areas where water quality is poor. Researchers believe the population of the clam has been cut in half within the last one hundred years from such causes as heavy silting, over-harvesting, turbulence from boat propellers and various types of pollution.


			[[Category: Environmental]]

Randylyon at 23:15, 4 August 2008

2008-08-04T23:15:06Z

← Older revision		Revision as of 23:15, 4 August 2008
Line 1:		Line 1:
	HIGGINS' EYE CLAM. Possibly the tri-state's most infamous mollusk. The Higgins' Eye clam, a federally endangered specie since 1976, first gained community attention when its discovery temporarily threatened construction of the [[DUBUQUE-WISCONSIN BRIDGE]]. Found only in the waters of the Upper [[MISSISSIPPI RIVER]] and usually in sand or mud near the shoreline, the clam's thick olive green shells range from four to five inches long. This made the Higgins' Eye an important source of material for the [[BUTTON INDUSTRY]]. Hunted for its commercial value, the number of clams declined further when construction of [[LOCKS]] and dams changed the river habitat.		[[Image:clams.gif\|left\|thumb\|250px\|Higins' Eye Clam]]HIGGINS' EYE CLAM. Possibly the tri-state's most infamous mollusk. The Higgins' Eye clam, a federally endangered specie since 1976, first gained community attention when its discovery temporarily threatened construction of the [[DUBUQUE-WISCONSIN BRIDGE]]. Found only in the waters of the Upper [[MISSISSIPPI RIVER]] and usually in sand or mud near the shoreline, the clam's thick olive green shells range from four to five inches long. This made the Higgins' Eye an important source of material for the [[BUTTON INDUSTRY]]. Hunted for its commercial value, the number of clams declined further when construction of [[LOCKS]] and dams changed the river habitat.

	Pockets of Higgins' Eye clams have been discovered near the Wisconsin side of the Dubuque Wisconsin bridge and off Chaplain Schmitt Island. Young Higgins' Eye are usually carried as parasites of sauger pike until the clams mature to the stage when they fall to the river bottom to continue growing.		Pockets of Higgins' Eye clams have been discovered near the Wisconsin side of the Dubuque Wisconsin bridge and off Chaplain Schmitt Island. Young Higgins' Eye are usually carried as parasites of sauger pike until the clams mature to the stage when they fall to the river bottom to continue growing.

	Higgins' Eye clams, once abundant from Minnesota to Louisiana, are not found below cities or industrial areas where water quality is poor. Researchers believe the population of the clam has been cut in half within the last one hundred years from such causes as heavy silting, over-harvesting, turbulence from boat propellers and various types of pollution.		Higgins' Eye clams, once abundant from Minnesota to Louisiana, are not found below cities or industrial areas where water quality is poor. Researchers believe the population of the clam has been cut in half within the last one hundred years from such causes as heavy silting, over-harvesting, turbulence from boat propellers and various types of pollution.

Randylyon at 20:10, 21 July 2008

2008-07-21T20:10:41Z

← Older revision		Revision as of 20:10, 21 July 2008
Line 1:		Line 1:
	HIGGINS' EYE CLAM. Possibly the tri-state's most infamous mollusk. The Higgins' Eye clam, a federally endangered specie since 1976, first gained community attention when its discovery temporarily threatened construction of the [[DUBUQUE-WISCONSIN BRIDGE]]. Found only in the waters of the Upper [[MISSISSIPPI RIVER] and usually in sand or mud near the shoreline, the clam's thick olive green shells range from four to five inches long. This made the Higgins' Eye an important source of material for the [[BUTTON INDUSTRY]]. Hunted for its commercial value, the number of clams declined further when construction of [[LOCKS]] and dams changed the river habitat.		HIGGINS' EYE CLAM. Possibly the tri-state's most infamous mollusk. The Higgins' Eye clam, a federally endangered specie since 1976, first gained community attention when its discovery temporarily threatened construction of the [[DUBUQUE-WISCONSIN BRIDGE]]. Found only in the waters of the Upper [[MISSISSIPPI RIVER]] and usually in sand or mud near the shoreline, the clam's thick olive green shells range from four to five inches long. This made the Higgins' Eye an important source of material for the [[BUTTON INDUSTRY]]. Hunted for its commercial value, the number of clams declined further when construction of [[LOCKS]] and dams changed the river habitat.

	Pockets of Higgins' Eye clams have been discovered near the Wisconsin side of the Dubuque Wisconsin bridge and off Chaplain Schmitt Island. Young Higgins' Eye are usually carried as parasites of sauger pike until the clams mature to the stage when they fall to the river bottom to continue growing.		Pockets of Higgins' Eye clams have been discovered near the Wisconsin side of the Dubuque Wisconsin bridge and off Chaplain Schmitt Island. Young Higgins' Eye are usually carried as parasites of sauger pike until the clams mature to the stage when they fall to the river bottom to continue growing.

	Higgins' Eye clams, once abundant from Minnesota to Louisiana, are not found below cities or industrial areas where water quality is poor. Researchers believe the population of the clam has been cut in half within the last one hundred years from such causes as heavy silting, over-harvesting, turbulence from boat propellers and various types of pollution.		Higgins' Eye clams, once abundant from Minnesota to Louisiana, are not found below cities or industrial areas where water quality is poor. Researchers believe the population of the clam has been cut in half within the last one hundred years from such causes as heavy silting, over-harvesting, turbulence from boat propellers and various types of pollution.