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Last modified
1/26/2010 2:25:12 PM
Creation date
10/12/2006 2:00:34 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8460.500
Description
Platte River Recovery Plan
Basin
South Platte
Date
11/7/1993
Author
USFWS
Title
Pallid Sturgeon Recovery Plan
Water Supply Pro - Doc Type
Publication
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<br />I <br />I <br /> <br />i <br />! <br /> <br />.-.r.l'!1'!'- _'-. <br /> <br />Present Distribution and Abundance: <br /> <br />Pallid sturgeon remain one of the rarest fish of the Missouri and Mississippi <br />River basins. Carlson and Pflieger (1981) stated that pallid sturgeon are <br />.r~re, but widely distributed in the Missouri River and in the Mississippi <br />River downstream from the mouth of the Missouri River. Keenlyne (1989) <br />'recently updated information on distribution of the pallid sturgeon. Keenlyne <br />reported pre-1980 catch records in the Mississippi River from its mouth <br />upstream to its confluence with the Missouri River, a length of 1,857 <br />kilometers (km) (1,154 miles (min; in the lower 56 km (35 mil of the <br />Yazoo/Big Sunflower and St. Francis Rivers (tributaries to the Mississippi); <br />in the Missouri River from its mouth to Fort Benton, Montana, a length of <br />3,323 Ian (2,065 mil; and in the lower 64 Ian (40 mil of the Kansas River, the <br />lower 34 Ian (21 mil of the Platte River, and the lower 322 Ian (200 mil of the <br />Yellowstone River (tributaries to the Missouri River). The total length of <br />the species' range is approximately 5,656 Ian (3,515 mil of river. States <br />within this range are Montana, North Dakota, South Dakota, Nebraska, Iowa, <br />Kansas, Missouri, III inois, Kentucky, Tennessee, Arkansas, Mississippi, and <br />louisiana. <br /> <br />Since 1980, reports of most frequent occurrence (Figure 3) are from the <br />Missouri River between the.Marias River and Ft. Peck Reservoir in Montanaj <br />between Ft. Peck Dam and lake Sakakawea (near Williston, North Dakota); within <br />the lower 113 Ian (70 mi) of the Yellowstone River to downstream of Fallon, <br />Montana; in the headwaters of Lake Sharpe in South Dakota; and from the <br />Missouri River near the mouth of the Platte River near Plattsmouth, Nebraska. <br />Areas of most recent and frequent occurrence on the Mississippi River are near <br />Chester, Illinois; Caruthersville, Missouri; and in both the Mississippi and <br />Atchafalaya Rivers in Louisiana at the Old River Control where the Atchafalaya <br />diverges from the Mississippi River (Mark Dryer, U.S. Fish and Wildlife <br />Service, pers. comm.). '. <br /> <br />Larval sturgeon 'of any species rarely.have been collected from within the <br />range of pallid sturgeon. This may be due to low reproductive success or the <br />inability of standard sampling gear to capture larval sturgeon. Hesse and <br />Mestl (1993a) collected two sturgeon larvae from the Missouri River adjacent <br />to Nebraska between 1983 and 1991 (the species of sturgeon is not yet. <br />distinguishable at larval stages). These larvae were among 147,000 fish <br />larvae collected during filtration of 519,400 cubic meters of river water. <br />Gardner and Stewart (1987) collected no sturgeon larvae in 339 samples from <br />the Missouri River or in 77 samples from tributary streams where 3,124' and <br />5,526 fish larvae were collected, respectively. <br /> <br />Habitat Preference: <br /> <br />Forbes and Richardson (1905), Schmulbach et al. (1975), Kallemeyn (1983), and <br />Gilbraith et al. (1988) describe pallid sturgeon as being a fish well adapted <br />to life on the bottom in swift waters of large, turbid, free-flowing rivers. <br /> <br />5 <br />
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