Naslov
Modeling the optimal strategy in fish production considering the damage caused by a cormorant

Autori
Crnjac, Miljenko ; Opačak, Anđelko ; Tolušić, Zdravko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 7th International Conference on Operational Research / Aganović, Ibrahim ; Hunjak, Tihomir ; Scitovski, Rudolf - Osijek : Hrvatsko društvo održavatelja, 1999, 187-196

Skup
7th International Conference on Operational Research - KOI'98

Mjesto i datum
Rovinj, Hrvatska, 30.09.1998. - 02.10.1998

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
growth model; population model with harvesting

Sažetak
We consider a model of spawn rearing with the constant damage $H_0$ of the form [ frac{; ; dN}; ; {; ; dt}; ; =rN(1-frac{; ; N}; ; {; ; A}; ; )-H_0, qquad r, , A>0, ] and an exploitable model of spawn rearing of one fish species in a fish-pond with the damage caused by a cormorant which is of the following form: [ frac{; ; dN}; ; {; ; dt}; ; =rNleft( 1-frac{; ; N}; ; {; ; A}; ; ight)-H(N)-H_0, quad r, , A>0, ] where $N(t)$ is a quantity of fish in the moment $t$, $H(N)$ -- quantity of harvesting at state $N$ of the fish population and $H_0$ -- constant damage caused by cormorants. Model steady states, optimal harvesting strategy and the optimal parameters estimation problem will be analysed. The model will be tested by using empirical data obtained in the fish-pond D., Miholjac.

Izvorni jezik
Engleski

Znanstvena područja
Matematika, Šumarstvo, Ekonomija

POVEZANOST RADA