Agronomy journal, Vol. 69 No. 1, 2007.
Original scientific paper
MANAGING STOCKS OF SARDINES IN THE CROATIAN PART OF THE ADRIATIC SEA
M. Tratnik
S. Radinović
P. Pedišić
Abstract
The results of a model research to affirm the bioeconometrica approach to sardine stocks management on the eastern coast of the Croatian part of the Adriatic sea are presented. The aim was to define methodologically and theoretically the starting scenarios for solving current problems in sardine stocks management extracting them from strictly empirical context.
With this in mind a research pattern for Croatian conditions was created integrating quantitative and qualitative approach to sardine stocks management. Taking biological stock parameters as the starting value econometric part was carried out thus interactively integrating it into the complete bioeconometric model.
The model was defined in three presumed scenarios: 1) demission and conversion of sell efficient part of fishing fleet from professional fishing, 2) introduction of nets of higher catch selectivity and 3) changing the level of cost-expenses catch subsidizing. Using the Mephisto program package it was established that each of the scenarios applied showed a polarizing advantage in biological and economic values in relation to the existing status. Seeking among the scenarios the optimal biological and economic advantages the demission and conversion of the existing fishing fleet appeared to be the best acceptable strategy with respect to the problem. Long – term consideration of the optimal value of sardine stocks in the eastern part of the Adriatic sea indicates that the number of fishing fleet and demission of less efficient boats from professional fishing should be taken account of.
Keywords
management; bioeconomic model; sardine; scenario; Mephisto program
Hrčak ID:
18201
URI
Publication date:
23.2.2007.
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