Steve A Farha
Steve Farha is a Biological Science Technician based in Ann Arbor, MI.
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Filter Total Items: 27
Status of pelagic prey fishes in Lake Michigan, 2012 Status of pelagic prey fishes in Lake Michigan, 2012
Acoustic surveys were conducted in late summer/early fall during the years 1992-1996 and 2001-2012 to estimate pelagic prey fish biomass in Lake Michigan. Midwater trawling during the surveys as well as target strength provided a measure of species and size composition of the fish community for use in scaling acoustic data and providing species-specific abundance estimates. The 2012...
Authors
David M. Warner, Timothy P. O’Brien, Steven A. Farha, Randall M. Claramunt, Dale Hanson
Status and trends of pelagic prey fishes in Lake Huron, 2012 Status and trends of pelagic prey fishes in Lake Huron, 2012
The USGS Great Lakes Science Center (GLSC) conducted acoustic/midwater trawl surveys of Lake Huron during 1997 and annually during 2004-2012. The 2012 survey was conducted during September and October, and included transects in Lake Huron’s Main Basin, Georgian Bay, and North Channel. Pelagic fish density (638 fish/ha) was lower in 2012 compared to 2011, with density in 2012 only 34% of...
Authors
David M. Warner, Timothy P. O’Brien, Steven A. Farha, Jeff Schaeffer, Stephen Lenart
Status and trends of the Lake Huron deepwater demersal fish ommunity, 2008 Status and trends of the Lake Huron deepwater demersal fish ommunity, 2008
The U.S.Geological Survey Great Lakes Science Center has conducted trawl surveys to assess annual changes in the deepwater demersal fish community of Lake Huron since 1973. Since 1992, surveys have been carried out using a 21 m wing trawl towed on-contour at depths ranging from 9 to 110 m on fixed transects. Sample sites include five ports in U.S. waters with less frequent sampling near...
Authors
Edward F. Roseman, Timothy P. O’Brien, Stephen C. Riley, Steven A. Farha, John R. French
Science and Products
Data releases by this scientist
Publications by this scientist
Filter Total Items: 27
Status of pelagic prey fishes in Lake Michigan, 2012 Status of pelagic prey fishes in Lake Michigan, 2012
Acoustic surveys were conducted in late summer/early fall during the years 1992-1996 and 2001-2012 to estimate pelagic prey fish biomass in Lake Michigan. Midwater trawling during the surveys as well as target strength provided a measure of species and size composition of the fish community for use in scaling acoustic data and providing species-specific abundance estimates. The 2012...
Authors
David M. Warner, Timothy P. O’Brien, Steven A. Farha, Randall M. Claramunt, Dale Hanson
Status and trends of pelagic prey fishes in Lake Huron, 2012 Status and trends of pelagic prey fishes in Lake Huron, 2012
The USGS Great Lakes Science Center (GLSC) conducted acoustic/midwater trawl surveys of Lake Huron during 1997 and annually during 2004-2012. The 2012 survey was conducted during September and October, and included transects in Lake Huron’s Main Basin, Georgian Bay, and North Channel. Pelagic fish density (638 fish/ha) was lower in 2012 compared to 2011, with density in 2012 only 34% of...
Authors
David M. Warner, Timothy P. O’Brien, Steven A. Farha, Jeff Schaeffer, Stephen Lenart
Status and trends of the Lake Huron deepwater demersal fish ommunity, 2008 Status and trends of the Lake Huron deepwater demersal fish ommunity, 2008
The U.S.Geological Survey Great Lakes Science Center has conducted trawl surveys to assess annual changes in the deepwater demersal fish community of Lake Huron since 1973. Since 1992, surveys have been carried out using a 21 m wing trawl towed on-contour at depths ranging from 9 to 110 m on fixed transects. Sample sites include five ports in U.S. waters with less frequent sampling near...
Authors
Edward F. Roseman, Timothy P. O’Brien, Stephen C. Riley, Steven A. Farha, John R. French