LDBS6_All_ST

Acoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on August 27th, 201

LDBS7_All_ST.csv

Acoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on July 28th, 2012

LDBS4_All_ST

Acoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on August 15th, 201

Single target settings.

<p>Single target detection settings and fish track detection properties used in Echoview 5.0 ((Myriax Inc., Hobart, TAS, Australia) with BioSonics DTX 200 kHz split-beam echosounder (BioSonics Inc., Seattle, USA).</p><p>Single target settings.</p

LDBS11_All_ST

Acoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on August 24th, 201

LDBS2_All_ST

Acoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on August 2nd, 201

LDBS1_All_ST

Acoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on July 26th, 2011

Linear regression results of acoustic survey counts of fish for each target strength-upper limit of size class by year, with lower threshold of -52.6 dB.

<p>Assignment to size class based on [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0124799#pone.0124799.ref023" target="_blank">23</a>]. Slope is an estimate of loss (mortality) rate.day^-1.</p><p>Linear regression results of acoustic survey counts of fish for each target strength-upper limit of size class by year, with lower threshold of -52.6 dB.</p

Acoustic target strength (dB) counts of fish tracks.

<p>Counts of fish tracks for the different size classes obtained during the 11 surveys of Lac du Bonnet in 2011 and 2012. The white dividing lines represent the breaks among assigned size classes.</p

Daily declines in fish abundance.

<p>Daily loss rates (declines in counts) within the summer study periods for the 5 size classes in 2011 (crosses) and 2012 (circles), scale on left axis. Inter-annual loss rates from the last survey in 2011 to first survey of 2012 (squares) for size classes (>16cm) (64 cm class to same class) (crossed square), scale on right axis.</p