Naslov
Testing of optimal fishing effort for sardine in the eastern Adriatic using system dynamics

Autori
Slišković, Merica ; Munitić, Ante ; Jelić-Mrčelić, Gorana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Proceedings of the 6th EUROSIM Congress on Modelling and Simulation / Zupančić, Borut ; Karba, Kihard ; Blažić, Sašo - Ljubljana : ARGESIM-ARGE Simulation News, 2007

ISBN
978-3-901608-32-2

Skup
6th EUROSIM Congress on Modelling and Simulation

Mjesto i datum
Ljubljana, Slovenija, 09.09.2007. - 13.09.2007

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Schaefer production model; sardine population; The Adriatic Sea; System dynamics

Sažetak
In this paper Schaefer production model of sardine in the Adriatic Sea is presented using System dynamics methodology. Production models are very simple but they can be good approximation for complex behavior dynamics of biological systems. Sardine population is chosen due to its great economic importance to Croatian fishing. In this paper, Schaefer (1954) production model was used due to lack of appropriate biological data for any other model. The qualitative and quantitative models of observed sardine population have been developed. Different scenarios are made ; using available biological data for sardine in the Adriatic Sea. Total fishing effort in relation to stock under exploitation is an essential parameter in the policy of sustainable marine resources management. Using Schaefer and Fox production models (Alegria– Hernandez, 1983), gave some optimal value for the fishing effort for sardine in the eastern Adriatic. Those values are tested using System Dynamics and obtained results are compared. Modeling and simulation enables testing of different exploitation scenarios without endangering sardine real population. The results of testing lower and upper limit for fishing effort (Scenario 1a and 1b) are shown in this paper. Although, available biological data give range of optimal fishing effort it is evident that upper limit reduce sardine biomass below initial state, while lover limit enables increase of sardine biomass.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija), Drvna tehnologija

POVEZANOST RADA