Publications and reports

Inverse method applied to autonomous broadband hydroacoustic survey detects higher densities of zooplankton in near-surface aggregations than vessel-based net survey

Published in Canadian Journal of Fisheries and Aquatic Sciences, 2023

This paper presents the inverse method applied to broadband autonomous acoustic surveys. We conclude the inverse method can improve density estimates of epipelagic organisms by diminishing avoidance biases and increasing the spatio-temporal resolution of ship-based surveys.

Recommended citation: Dunn, M., Pedersen, G., Basedow, S.L., Daase, M., Falk-Petersen, S., Bachelot, L., Camus, L. and Geoffroy, M., 2022. Inverse method applied to autonomous broadband hydroacoustic survey detects higher densities of zooplankton in near-surface aggregations than vessel-based net survey. Canadian Journal of Fisheries and Aquatic Sciences. https://doi.org/10.1139/cjfas-2022-0105 https://cdnsciencepub.com/doi/abs/10.1139/cjfas-2022-0105

Evaluation of discrete target detection with an acoustic Doppler current profiler

Published in Limnology and Oceanography: Methods, 2022

Broadband ADCP for discrete target counting returns comparable results to split-beam echosounder fish counts.

Recommended citation: Dunn, M. and Zedel, L. (2022). "Evaluation of discrete target detection with an acoustic Doppler current profiler". Limnology and Oceanography: Methods. https://aslopubs.onlinelibrary.wiley.com/doi/epdf/10.1002/lom3.10484

Report - Sailbuoy in Antarctica: A survey for the Norwegian Polar Institute.

Published in Akvaplan-niva reports, 2021

We completed a quality control check of the mission data and presented an overview in the report.

Recommended citation: Ramasco, V., Dunn, M. (2021) Sailbuoy in Antarctica: A survey for the Norwegian Polar Institute. Akvaplan-niva Report 2021 62586.01 .

Report - Data from the BREA-MFP and CBS-MEA research programs describing the Anguniaqvia niqiqyuam Marine Protected Area (ANMPA) ecosystem

Published in Canadian data report of fisheries and aquatic sciences, 2020

The conservation objectives of the Anguniaqvia niqiqyuam Marine Protected Area (ANMPA) focus on maintaining the integrity of marine habitats offshore of the Cape Parry Migratory Bird Sanctuary that support populations of key species, such as beluga whales, Arctic Char, and ringed and bearded seals. This report provides ecosystem-level scientific knowledge to support the development of monitoring objectives and activities.

Recommended citation: Niemi, A., Majewski, A., et al. (including Dunn, M.) (2020). Data from the BREA-MFP and CBS-MEA research programs describing the Anguniaqvia niqiqyuam Marine Protected Area (ANMPA) ecosystem. Can. Data Rep. Fish. Aquat. Sci. 1316: ix + 90 p. https://publications.gc.ca/site/eng/9.892324/publication.html

Developments in fish detection using broadband acoustic doppler current profiler

Published in Memorial University of Newfoundland Library, 2019

This thesis presents results from a 600 kHz RD Instruments Workhorse ADCP alongside a 120 kHz BioSonics DTX Submersible Split-Beam Echosounder system and contrasts their capabilities in the context of fish monitoring in high-energy tidal channels.

Recommended citation: Dunn, M., 2019. Developments in fish detection using broadband acoustic doppler current profiler (Masters dissertation, Memorial University of Newfoundland). https://research.library.mun.ca/14340/1/thesis.pdf

Development of acoustic Doppler fish monitoring for applications in high-energy tidal channels

Published in Underwater acoustics conference and exhibition, 2019

Detecting fish in ADCP measurements using coninciding incidences of high phase correlation and high intensity.

Recommended citation: Dunn, M., Zedel, L., Trowse, G. (2019). "Development of acoustic Doppler fish monitoring for applications in high-energy tidal channels". UACE2019-Conference Proceedings. https://www.uaconferences.org/docs/Past_Proceedings/UACE2019_Proceedings.pdf

Muriel Dunn