Naslov
A PRELIMINARY STUDY OF THE GROWTH RATE OF BLUEFIN TUNA FROM ADRIATIC WHEN REARED IN THE FLOATING CAGES

Autori
Katavić, Ivan ; Tičina, Vjekoslav ; Franičević Vlasta

Izvornik
Collective volume of scientific papers - International Commission for the Conservation of Atlantic Tunas (1021-5212) 54 (2002), 2; 472-476

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Aquaculture systems; bluefin tuna; floating structures; tagging; Adriatic Sea

Sažetak
The objective of this paper was to estimate growth increment of bluefin tuna (Thunnus thynnus L.) while they were reared in the floating cages placed in the middle part of the eastern Adriatic Sea. In accordance with recommendations of Bluefin Program (BYP) about research activities, and aiming to provide more accurate methods in estimating the increase in both length and weight of cultured fish after being captured, were tagged by means of conventional tags. All fish (FL = 60-120 cm) were tagged immediately upon their transfer from the fishing grounds to the cage sites where they were reared for 516 days period. Losses during handling procedures applied for tagging and mortality during rearing period were recorded. Individual length and weight increment of surviving fish after being tagged and reared in floating cages were measured and calculated. In addition to length-weight data, gilled and gutted weight were recorded, thus providing a conversion factor to convert weights of GG fish into respective round weights.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija), Biotehnologija

POVEZANOST RADA