Professional paper

Freshwater fisheries in Croatia in 1992

Mirko Turk ; Direktor ribarskog centra, Kneza Mislava 2/V, 10 000 Zagreb

Abstract

Presented in this work are data on the production and catch of fish according to species, on the surface area of the fish farm, on the fish catching gear and on the distribution of production and catch in 1992. The surface area used for production of fish has decreased by 243 ha or 2.08%, and the total amount of fish has decreased by 1.861 tons or 15.38%. The highest production of fish was reached in Končanica at 1.227 kg/ha.
The feeding coefficient 3.40 is higher by 6.25% than the previous year. On only one fish farm the feeding coefficient was less than 2.0 kg (1.42 kg), and on 8 large fish farms this coefficient was higher than 3.50 kg. The fish diet is still mostly corn and wheat grains.
The consumption of fertilizer was decreased by 33.0%.
Of the total surface area of the fish farm the growing ponds made up 0.83%o, the juvenile raring ponds 20.59% and the fry ponds for consumption fish 77.63% The total amount of fish on carp fish farms was 867 kg/ha, and on trout farms 62.5 tons. Of all the fish species the carp was most produced the most (86.91%), then the herbivorous fish with 6.08, and all remaining fish made up 7.01% of the total production.
In the structure of herbivorous fish the grass carp takes first place with 50.6% and is followed by the silver carp with 27.5%, then the big head carp with 21.9%. In comparison with the previous year there is an increase in production of the cheat fish by 0.8% as well as a significant decrease in trout.
Catch in fish in open waters was decreased by 42.82% in comparison with the previous year.
Calculating the total production and catch of freshwater fish, partly carp with 85.80%, herbivorous fish with 5.97%, trout 1.24%, pike-perch and pike 1.79% and all remaining fish species 5.13%.
In the distribution of production and catch 65.71% of the fish were sold on the market, 30.12% were used for reproduction (fish farm stocking), and dead and others made up 2.21%. For self consumption (sports fishing) 1.96 was used.
The number of fisheries workers was decreased by 19.8%, and production per worker increased by 6.40% in comparison with the previous year.
The average production per worker was 11.47 tons of fish. The highest production this year was reached in Poljana with 19.13 tons.

Keywords

fish production; fish catch; pond; Croatia

Hrčak ID:

77055

URI

https://hrcak.srce.hr/77055

Publication date:

23.9.1993.

Article data in other languages: croatian

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