Landscape scale lake surveys of Algonquin Provincial Park

To better understand the status of Lake Trout and Brook Trout populations
across the Algonquin Provincial Park landscape 192 index netting surveys
were conducted on 161 lakes utilizing standardized multimesh benthic
gillnets between the years 2009 and 2022. Index netting was conducted
using a depth-stratified randomized site survey design and employed
multi-pass sampling on a majority of the lakes to provide the opportunity
for occupancy analysis. Two primary netting methods were employed; Summer
Profundal Index Netting (SPIN) for Lake Trout populations sampled between
2009-2012; and a modified Ontario Broadscale Monitoring (BsM) method we
refer to as Short Duration Point Sampling (SDPS). The SDPS method uses the
large mesh BsM nets (NA1) deployed for a one-hour duration within the same
depth strata used in the BsM program with a sampling intensity in each
stratum proportional to the surface area. The overall sampling intensity
(nets/lake) is greater than that employed in the BsM program as we are
interested in lake-specific analyses.  This data dryad provides
general information on each lake sampled including lake characteristics,
lake volumes, netting site locations, and spring water
chemistry.