Unified Interior Regions

Region 4: Mississippi Basin

Regions L2 Landing Page Tabs

Filter Total Items: 4,622
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Year Published: 1984

Editorial: Environmental contaminants and fish-dependent birds

No abstract available.

Schmitt, Christopher J.; Henry, M.G.

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Year Published: 1984

Adaptive variation in offspring size in the terrestrial isopod, Armadillidium vulgare

Variation in the birth size of offspring of the terrestrial isopod, Armadillidium vulgare, was observed in laboratory experiments and in field populations. In the laboratory, larger offspring were produced when the mother's food supply was reduced. In field populations, larger offspring were produced during the summer, a period of reduced food...

Brody, M.S.; Lawlor, L.R.
Adaptive variation in offspring size in the terrestrial isopod, Armadillidium vulgare; 1984; Article; Journal; Oecologia; Brody, M.S.; Lawlor, L.R.

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Year Published: 1983

Hydrology of area 38, Western Region, Interior Coal Province, Iowa and Missouri

A nationwide need for information characterizing hydrologic conditions in mined and potential mine areas has become paramount with the enactment of the Surface Mining Control and Reclamation Act of 1977. This report is designed to be useful to the mine owners, operators, and others by presenting information about the existing hydrologic conditions...

Detroy, M.G.; Skelton, John
Hydrology of area 38, Western Region, Interior Coal Province, Iowa and Missouri; 1983; OFR; 82-1014; Detroy, M. G.; Skelton, John

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Year Published: 1983

Water resources data Iowa, water year 1982

Water resources data for the 1982 water year for Iowa consists of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; and water levels in wells. This report contains discharge records for 116 gaging stations; stage and contents for 7 lakes and reservoirs; water...

Burmeister, I.L.; Spiers, V.L.; Soenksen, P.J.; Matthes, W.J.
Water resources data Iowa, water year 1982; 1983; WDR; IA-82-1; Burmeister, I. L.; Spiers, V. L.; Soenksen, P. J.; Matthes, W. J.

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Year Published: 1983

Organochlorine residues in freshwater fish, 1976-1979: National Pesticide Monitoring Program

No abstract available

Schmitt, C.J.; Ribick, M.A.; Ludke, J. L.; May, T.W.

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Year Published: 1983

Reproduction by the endangered cui-ui in the lower Truckee River

Adult spawning behavior and emigration of larvae of the endangered cui-ui Chasmistes cujus were studied in a natural side channel of the lower Truckee River. External radio-tags placed on eight apparently did not affect spawning behavior. Cui-uis spawned in clusters of two to seven fish; usually a single female was flanked by two males. Each...

Scoppettone, G.G.; Wedemeyer, Gary; Coleman, M.; Burge, H.

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Year Published: 1983

The effects of meiofauna on settling macrofauna: meiofauna may structure macrofaunal communities

When macrofaunal larvae and juveniles recruit into the benthos, they are in the same size category as the meiofauna. These small size classes have been consistently ignored in macrofaunal studies despite the increasingly accepted idea that communities are structured not only by interactions between adults, but also by interactions which...

Watzin, Mary C.

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Year Published: 1983

Accumulation, sublethal effects, and safe concentration of a refined oil as evaluated with cutthroat trout

Cutthroat trout (Salmo clarki) were exposed for 90 days in the laboratory to a refined oil collected from the North Platte River at a seepage site below the American Oil Company refinery at Casper, Wyoming. Fish were exposed to five concentrations and a control, and seven biological responses (survival, growth, gill pathology, liver pathology,...

Woodward, D.F.; Riley, R.G.; Smith, C. E.

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Year Published: 1983

The role of the USFWS geographic information system in coastal decisionmaking

Unprecedented demand on coastal resources in the 1980's has generated a need for valid information and analyses to support wise management of the coastal zone. The National Coastal Ecosystems Team of the U.S. Fish and Wildlife Service recently implemented a geographic information system to enhance its ability to analyze and display environmental...

Ader, Robert; Stayner, Floyd O.

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Year Published: 1982

COASTAL*FISH user's guide--a finfish/shellfish information base for Mississippi Sound and Mobile Bay

COASTAL *FISH is a computerized database that includes current information on spawning, nursery areas, migrations, distribution, and environmental requirements of finfish and shellfish. This User's Guide was prepared to access and query the finfish and shell fish database. It provides basic information required to query the database.

Jones, B.; Benson, N.
COASTAL*FISH user's guide--a finfish/shellfish information base for Mississippi Sound and Mobile Bay; 1982; Federal Government Series; FWSOBS; 82/12; Jones, B.; Benson, N.