Analysis of spatial distribution characteristics of fishing species as the important factor in stock management ...

• Main Authors: Kasatkina, S.M., Ivanova, V.F., Kadilnikov, Yu. V.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: ASC 2005 - U - Theme session 2024
• Subjects: Technologies and data; Ecosystem observation, processes and dynamics; Scotia Sea
• Online Access: https://dx.doi.org/10.17895/ices.pub.25350676; https://ices-library.figshare.com/articles/conference_contribution/Analysis_of_spatial_distribution_characteristics_of_fishing_species_as_the_important_factor_in_stock_management/25350676

No abstracts are to be cited without prior reference to the author.In this paper the results of research fulfilled during the last decade at AtlantNIRO on the problem of pelagic commercial species spatial distribution characteristics integration into the procedures of fishery analysis and fishable biomass monitoring are summarized. The system of distribution characteristics assessment of fish schools in two- and three-dimensional space using acoustic observations is presented. The effect of fish spatial distribution parameters on the technical accessibility of fishable biomass to the fisheries systems (trawl catchability, catch per hour of trawling) is considered. The possibility to detect potential fishing grounds and to estimate the fishable biomass and the size of possible catches from these grounds on the basis of incorporating the analysis of fish spatial distribution parameters into the acoustic survey practice is demonstrated. The results obtained in the Scotia Sea and Southeastern Pacific Ocean are ...