Inter-vessel comparison of hydroacoustic fish density in central Lake Erie, 2014
Dates
Publication Date
2020-07-31
Start Date
2014-07-21
End Date
2014-07-23
Citation
Kocovsky, P.M., 2020, Inter-vessel comparison of hydroacoustic fish density in central Lake Erie, 2014: U.S. Geological Survey data release, https://doi.org/10.5066/P9U7EDP3.
Summary
Hydroacoustic estimates of fish density are used for fisheries management in central Lake Erie. Data are sometimes collected from multiple vessels, raising the question of comparability of data collected among vessels. Hydroacoustic data were collected along three cross-lake transects in central Lake Erie in July, 2014 from three different vessels using similar equipment. Several variables derived from hydroacoustic data and fish densities calculated from those variables were compared between the standard vessel used typically for hydroacoustic data collection and two other vessels used occasionally. The data used in those analyses are presented here.
Summary
Hydroacoustic estimates of fish density are used for fisheries management in central Lake Erie. Data are sometimes collected from multiple vessels, raising the question of comparability of data collected among vessels. Hydroacoustic data were collected along three cross-lake transects in central Lake Erie in July, 2014 from three different vessels using similar equipment. Several variables derived from hydroacoustic data and fish densities calculated from those variables were compared between the standard vessel used typically for hydroacoustic data collection and two other vessels used occasionally. The data used in those analyses are presented here.
DuFour, M.R., Kocovsky, P.M., Deller, J., Simonin, P.W., and Rudstam, L.G., 2021, Hydroacoustic survey standardization: Inter-vessel differences in fish densities and potential effects of vessel avoidance: Fisheries Research, v. 239, p. 105948, https://doi.org/10.1016/j.fishres.2021.105948.
The data were collected to compare hydroacoustic fish densities in central Lake Erie calculated using data from three different vessels to assess comparability of results across vessels.
