Data from: Size-based hydroacoustic measures of within-season fish abundance in a boreal freshwater ecosystem ...
Eleven sequential size-based hydroacoustic surveys conducted with a 200 kHz split-beam transducer during the summers of 2011 and 2012 were used to quantify seasonal declines in fish abundance in a boreal reservoir in Manitoba, Canada. Fish densities were sufficiently low to enable single target reso...
Main Authors: | , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
Dryad
2016
|
Subjects: | |
Online Access: | https://dx.doi.org/10.5061/dryad.nt18c https://datadryad.org/stash/dataset/doi:10.5061/dryad.nt18c |
id |
ftdatacite:10.5061/dryad.nt18c |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.5061/dryad.nt18c 2024-02-04T10:02:01+01:00 Data from: Size-based hydroacoustic measures of within-season fish abundance in a boreal freshwater ecosystem ... Pollom, Riley A. Rose, George A. 2016 https://dx.doi.org/10.5061/dryad.nt18c https://datadryad.org/stash/dataset/doi:10.5061/dryad.nt18c en eng Dryad https://dx.doi.org/10.1371/journal.pone.0124799 Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 Sander canadensis Lota lota Limnology hydroacoustics Freshwater ecosystems Sander vitreus Notropis Coregonus clupeaformis Dataset dataset 2016 ftdatacite https://doi.org/10.5061/dryad.nt18c10.1371/journal.pone.0124799 2024-01-05T04:51:50Z Eleven sequential size-based hydroacoustic surveys conducted with a 200 kHz split-beam transducer during the summers of 2011 and 2012 were used to quantify seasonal declines in fish abundance in a boreal reservoir in Manitoba, Canada. Fish densities were sufficiently low to enable single target resolution and tracking. Target strengths converted to log2-based size-classes indicated that smaller fish were consistently more abundant than larger fish by a factor of approximately 3 for each halving of length. For all size classes, in both years, abundance (natural log) declined linearly over the summer at rates that varied from -0.067.day-1 for the smallest fish to -0.016.day-1 for the largest (R2 = 0.24–0.97). Inter-annual comparisons of size-based abundance suggested that for larger fish (>16 cm), mean winter decline rates were an order of magnitude lower (-0.001.day-1) and overall survival higher (71%) than in the main summer fishing season (mean loss rate -0.038.day-1; survival 33%). We conclude that ... : LDBS1_All_STAcoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on July 26th, 2011.LDBS2_All_STAcoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on August 2nd, 2011LDBS3_All_STAcoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on August 3rd, 2011LDBS4_All_STAcoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on August 15th, 2011LDBS5_All_STAcoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on August 18th, 2011LDBS6_All_STAcoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on August 27th, 2011LDBS7_All_ST.csvAcoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on July 28th, 2012.LDBS8_All_STAcoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on August 2nd, 2012LDBS9_All_STAcoustic survey data (exported single target detections) ... Dataset Lota lota lota DataCite Metadata Store (German National Library of Science and Technology) Canada |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Sander canadensis Lota lota Limnology hydroacoustics Freshwater ecosystems Sander vitreus Notropis Coregonus clupeaformis |
spellingShingle |
Sander canadensis Lota lota Limnology hydroacoustics Freshwater ecosystems Sander vitreus Notropis Coregonus clupeaformis Pollom, Riley A. Rose, George A. Data from: Size-based hydroacoustic measures of within-season fish abundance in a boreal freshwater ecosystem ... |
topic_facet |
Sander canadensis Lota lota Limnology hydroacoustics Freshwater ecosystems Sander vitreus Notropis Coregonus clupeaformis |
description |
Eleven sequential size-based hydroacoustic surveys conducted with a 200 kHz split-beam transducer during the summers of 2011 and 2012 were used to quantify seasonal declines in fish abundance in a boreal reservoir in Manitoba, Canada. Fish densities were sufficiently low to enable single target resolution and tracking. Target strengths converted to log2-based size-classes indicated that smaller fish were consistently more abundant than larger fish by a factor of approximately 3 for each halving of length. For all size classes, in both years, abundance (natural log) declined linearly over the summer at rates that varied from -0.067.day-1 for the smallest fish to -0.016.day-1 for the largest (R2 = 0.24–0.97). Inter-annual comparisons of size-based abundance suggested that for larger fish (>16 cm), mean winter decline rates were an order of magnitude lower (-0.001.day-1) and overall survival higher (71%) than in the main summer fishing season (mean loss rate -0.038.day-1; survival 33%). We conclude that ... : LDBS1_All_STAcoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on July 26th, 2011.LDBS2_All_STAcoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on August 2nd, 2011LDBS3_All_STAcoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on August 3rd, 2011LDBS4_All_STAcoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on August 15th, 2011LDBS5_All_STAcoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on August 18th, 2011LDBS6_All_STAcoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on August 27th, 2011LDBS7_All_ST.csvAcoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on July 28th, 2012.LDBS8_All_STAcoustic survey data (exported single target detections) from Lac du Bonnet, Manitoba, on August 2nd, 2012LDBS9_All_STAcoustic survey data (exported single target detections) ... |
format |
Dataset |
author |
Pollom, Riley A. Rose, George A. |
author_facet |
Pollom, Riley A. Rose, George A. |
author_sort |
Pollom, Riley A. |
title |
Data from: Size-based hydroacoustic measures of within-season fish abundance in a boreal freshwater ecosystem ... |
title_short |
Data from: Size-based hydroacoustic measures of within-season fish abundance in a boreal freshwater ecosystem ... |
title_full |
Data from: Size-based hydroacoustic measures of within-season fish abundance in a boreal freshwater ecosystem ... |
title_fullStr |
Data from: Size-based hydroacoustic measures of within-season fish abundance in a boreal freshwater ecosystem ... |
title_full_unstemmed |
Data from: Size-based hydroacoustic measures of within-season fish abundance in a boreal freshwater ecosystem ... |
title_sort |
data from: size-based hydroacoustic measures of within-season fish abundance in a boreal freshwater ecosystem ... |
publisher |
Dryad |
publishDate |
2016 |
url |
https://dx.doi.org/10.5061/dryad.nt18c https://datadryad.org/stash/dataset/doi:10.5061/dryad.nt18c |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Lota lota lota |
genre_facet |
Lota lota lota |
op_relation |
https://dx.doi.org/10.1371/journal.pone.0124799 |
op_rights |
Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 |
op_doi |
https://doi.org/10.5061/dryad.nt18c10.1371/journal.pone.0124799 |
_version_ |
1789968325941395456 |