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|Title:||Macroinvertebrates of Luxapalila Creek : Mississippi and Alabama, 1987-89|
|Authors:||Payne, Barry S.|
Miller, Andrew C.
Bingham, C. Rex.
Luxapalila Creek (Ala.-Miss.)
|Publisher:||Environmental Laboratory (U.S.)|
U.S. Army Engineer Waterways Experiment Station.
|Series/Report no.:||Miscellaneous Paper (U.S. Army Engineer Waterways Experiment Station.) ; EL-91-5|
|Abstract:||A survey of the macroinvertebrate community of four pools and four riffles in Luxapalila Creek, Mississippi and Alabama, was conducted in 1987-89. The purpose was to collect pre-construction data before the creek is impacted by selective clearing and snagging, bank protection, construction of notched sills, and a fabric dam. Luxapalila Creek can be characterized as exhibiting high macroinvertebrate species richness, diversity, and equitable distribution of chironomid (midge) larvae and oligochaete (worm) species. These two groups dominated the fauna and comprised 77 and 62 percent of the macroinvertebrates in pools and riffles, respectively. Total macroinvertebrate density was lower although more stable in pools (6,433-7,229 individuals/sq m) than in riffles where it was higher and more variable (9, 662- 28,820 individuals/sq m). Species richness of chironomids appeared to be greater in pools than riffles probably because of drift out of riffles and into pools. High winter discharge led to greatly reduced macroinvertebrate densities in all riffles and in two pools during the spring of 1989. Post-construction biological monitoring will determine if community composition and total density is affected by proposed channel modifications.|
|Gov't Doc #:||Miscellaneous Paper EL-91-5|
|Rights:||Approved for Public Release; Distribution is Unlimited|
|Size:||94 pages/20.38 Mb|
|Types of Materials:||PDF/A|
|Appears in Collections:||Miscellaneous Paper|
Files in This Item:
|MP EL-91-5.pdf||20.88 MB||Adobe PDF|