A Model Of Aggregate Biomass Tradeoffs ...

• Main Author: Link, Jason S.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: ASC 2003 - Y - Theme session 2024
• Subjects: Fisheries and aquaculture; Technologies and data; Pressures, impacts, conservation, and management; Northwest Atlantic
• Online Access: https://dx.doi.org/10.17895/ices.pub.25348579.v1; https://ices-library.figshare.com/articles/conference_contribution/A_Model_Of_Aggregate_Biomass_Tradeoffs/25348579/1

No abstracts are to be cited without prior reference to the author.Multi-species and ecosystem based approaches to fisheries management provide alternate and complimentary views of fishery ecosystems. This work provides an example of the need to consider species interactions when evaluating and establishing management goals. Given the caveats of scale and variability, there is a finite amount of biological production within ecosystems. These carrying capacity limits to all levels of biomass production can lead to difficult choices about the allocation of production and biomass among commercially valuable finfish. I present a model based upon the functional guild approach to explore various scenarios for a hypothetical food web, roughly analogous to the finfish community of the U.S. northwest Atlantic. The model, an extension of simpler production models, has both ecological and abiotic constraints and accounts explicitly for predation, competition, and harvest. Model simulations show greater stability of ...