Accession Number : ADA118483

Title :   Aquatic Biota of Bank Stabilization Structures on the Missouri River, North Dakota.

Descriptive Note : Final rept.,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL LAB

Personal Author(s) : Burress,Ralph M ; Krieger,Douglas A ; Pennington,C H

PDF Url : ADA118483

Report Date : May 1982

Pagination or Media Count : 107

Abstract : Biological and physical data were collected from nine habitats on the Missouri River near Washburn, North Dakota. Sampling was conducted from mid-July to mid-October 1979 to compare the relative values of the habitats for fish and macroinvertebrates. Benthic samples included 11 families, among which oligochaetes (63 percent) and dipterans (34 percent) were numerically dominant. About half of the 166 samples taken at both structured and natural locations contained organisms, but 55 samples taken from mud or mud-fine sand substrates yielded 93 percent of the organisms collected. Although the numbers of taxa per station were not significantly different, there were significant differences in the mean numbers of organisms per station. Densities were greatest at two locations that included extensive areas of backwater (L-head dikes at Location DFH and wing dikes at Location DFW), and least at a revetted location (RVD) where the substrate was largely fine sand.

Descriptors :   *Aquatic animals, North Dakota, Rivers, Banks(Waterways), Dikes, Revetments, Sampling, Invertebrates, Fishes

Subject Categories : Biology
      Hydrology, Limnology and Potamology

Distribution Statement : APPROVED FOR PUBLIC RELEASE