Acronym NA
Category
Fisheries
Title Seeing further: broadband acoustics for improved measurements of demersal fishes Programme National Programme
Instrument (FP6)
Contact Type (FP7)
Strand (Interreg)
NA
Theme (FP7)
Activity Area (FP6)
Regional Area (Interreg)
Action (COST)
NA
Specific Programme (FP7)
NA
Funding source National Coordinator Gavin Macaulay Coordinator email NA
Coordinator institution
IMR - Institute of Marine Research (Norway)
Institutions involved
NA
Start year 2015 End year 2018 Funding (€) € 538,270 Website https://prosjektbanken.forskningsradet.no/project/FORISS/243877?Kilde=FORISS&distribution=Ar&chart=bar&calcType=funding&Sprak=no&sortBy=date&sortOrder=desc&resultCount=30&offset=270&TemaEmne.2=Marint+naturmangfold%2C+%C3%B8kosystemer+og+%C3%B8kosystemtjenester Summary The field of fisheries acoustics has two major long-standing methodological problems: the difficulty in resolving fish that are very close to the seabed from the seabed itself (that is, the deadzone problem), and accurate species characterisation or classification. These problems limit the usefulness of acoustic techniques for demersal ecosystems. These problems can be reduced through the use of broadband acoustic techniques, which give considerably higher range resolution and finer frequency spectra than is possible with conventional multi-frequency echosounder systems. Accordingly, this project will apply the advantages of broadband pulses to allow us to see further towards the seabed. Better detection of single fish close to the seabed will yield high quality fish track data which will be used to develop and enhance fish characterisation algorithms.
This project will:
1) carry out experiments to find better ways to acoustically detect fish close to the seabed using broadband acoustic signals, then apply that knowledge to real at-sea situations. It will also provide better tools to observe fish close to the seabed, which will be useful for understanding interactions between predators and prey, and fish behaviour close to the seabed.
2) collect broadband data from fish schools and other marine organisms and use this to improve methods of identifying species from the acoustic signal.
Both items above will improve the accuracy and precision of acoustic surveys of fish populations and will lead to better management of fish stocks. They will also provide better tools for observing and understanding all marine life
Keywords
Stock assessment;
Acoustic survey;
Marine Region
44
Spitzbergen and Bear Island (27.IIb)
41
Norwegian Sea (27.IIa)
2
Marine Region Map
