Estimation of Total Allowable Catch of Atlantic Salmon with Usingof Precautionary Approach Principles ...

• Main Author: Studenov, Igor
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: ASC 2005 - W - Theme session 2024
• Subjects: Fisheries and aquaculture; Pressures, impacts, conservation, and management; Atlantic salmon
• Online Access: https://dx.doi.org/10.17895/ices.pub.25350784; https://ices-library.figshare.com/articles/conference_contribution/Estimation_of_Total_Allowable_Catch_of_Atlantic_Salmon_with_Usingof_Precautionary_Approach_Principles/25350784

No abstracts are to be cited without prior reference to the author.One of the most serious problems for researchers is estimation of spawning herd's number and total allowable catch (TAC) by methods, which correspond with precautionary approach principles. Usage of traditional methods of stock's and TAC estimation has the following obstacles: difficult age structure, significant differences of hydrological conditions on the sea feeding areas, on the long migration ways and long-lasting period of migration in offshore and mouth parts of spawning rivers. In this connection, method of smolt's counting was selected for prognosis estimation of spawning herd's number. The smolt's counting was conducted in rivers where salmon spawning-and-growth areas (SGA) had been estimated. The MBAL (minimal biological acceptable level) was used in the process of TAC estimations as limiting reference points. In accordance with the classical understanding MBAL is the biomass value of spawning stock below which the probable ...