HR: 1330h
AN: NB33K-08    [Abstracts]
TI: Fisheries Assemblages and Road Stream Crossing Improvements on Manistee River Tributaries, Manistee County, Michigan
AU: * Gressick, N J
EM: biologistnick@yahoo.com
AF: Grand Valley State University, 1 Campus Drive, Allendale, MI 49401 United States
AU: Wright, A L
EM: strilera@student.gvsu.edu
AF: Grand Valley State University, 1 Campus Drive, Allendale, MI 49401 United States
AU: Stout, N Y
EM: stoutn@gvsu.edu
AF: Grand Valley State University, 1 Campus Drive, Allendale, MI 49401 United States
AU: Snyder, E B
EM: snydeeri@gvsu.edu
AF: Grand Valley State University, 1 Campus Drive, Allendale, MI 49401 United States
AB: Sedimentation affects both stream physical and biological integrity. Our objective was to incorporate the small-scale, proximate effects of sediment restoration and the larger-scale, ultimate effects that can occur from headwaters to mouth before and after restoration efforts. Electrofishing was conducted during Spring and Fall 2004. A total of 29 electrofishing reaches comprised the longitudinal gradient analysis along with 5 construction sites. Species richness ranged from 15 in Bear Creek (3rd order) to 8.1 in Sickle (1st). Pine Creek (2nd) was intermediate (9.3). Shannon's diversity index ranged from 0.78 in Bear to 0.61 and 0.51 in Pine and Sickle Creeks, respectively. Simpson's dominance index ranged from 0.46 in Sickle, where mottled sculpin were dominant, to 0.35 in Pine and 0.27 in Bear. Of the salmonids, relative abundance (%) of brook trout was highest in Sickle (2.31); brown trout were most abundant in Pine (7.58), and rainbow trout were most abundant in Bear (8.77). Initial results suggest that recovery should be most rapid in the more diverse and larger Bear Creek and that the restoration of a perched culvert in Sickle Creek could cause a decline in the native brook trout when brown trout are able to move upstream.
DE: 9810 New fields (not classifiable under other headings)
SC: North American Benthological Society [NB]
MN: 2005 Joint Assembly