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Pregled bibliografske jedinice broj: 308480

Časopis

Autori: Tičina, Vjekoslav; Katavić, Ivan; Grubišić, Leon
Naslov: Growth indices of small northern bluefin tuna (Thunnus thynnus, L.) in growth-out rearing cages
( Growth indices of small northern bluefin tuna (Thunnus thynnus, L.) in growth-out rearing cages )
Izvornik: Aquaculture (0044-8486) 269 (2007), 1-4; 538-543
Vrsta rada: članak
Ključne riječi: Northern bluefin tuna; capture-based aquaculture; growth; Adriatic Sea
( Northern bluefin tuna; capture-based aquaculture; growth; Adriatic Sea )
Sažetak:
The principal objective of the paper is to describe the growth pattern of small northern bluefin tuna (Thunnus thynnus) in floating cages in the Adriatic Sea. For this purpose, several sampling and tagging experiments on live small tunas (mean weight: 10.47± ; 5.817 kg) in various growth-out floating cages were carried out during different rearing periods. Length and weight data of live fish were analyzed at sampling and tagging time, and recapture data eventually at harvesting time. Based on the obtained data condition parameters (K), specific growth rates (SGR) and relative growth rates (RGR) and thermal growth coefficient (TGC) were calculated. Additionally, weight– frequency distributions at sampling and harvesting time are compared. It was observed that biomass of tagged fish, as a consequence of post-tagging related stress, decrease due to starvation (SGRb0), although fish were able to recover to initial biomass (SGR=0) within 2– 3 months. Significant differences in K between wild tuna (1.95± ; 0.136) and farmed tuna (2.33± ; 0.216) were noticed. Also, no significant increase of K-value between tagged tunas (2.12± ; 0.246) and recaptured tunas (2.21± ; 0.231) in the rearing cages was noticed. However, after rearing for extended periods (N1 year), one-year old tuna considerably increased their biomass (RGR%= 342.79). Such a production of tuna biomass using capture-based aquaculture, may satisfy increasing market demands without additional impact on fish mortality.
Projekt / tema: 001-0010501-0560, 001-0013077-0532
Izvorni jezik: eng
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Poljoprivreda (agronomija),Drvna tehnologija
Puni text rada: 308480.Growth_of_small_BFT.pdf (tekst priložen 18. Lis. 2007. u 12:20 sati)
URL Internet adrese: http://dx.doi.org/10.1016/j.aquaculture.2007.05.029
URL cjelovitog teksta:
Google Scholar: Growth indices of small northern bluefin tuna (Thunnus thynnus, L.) in growth-out rearing cages
Upisao u CROSBI: vjeko ticina (ticina@izor.hr), 18. Lis. 2007. u 12:20 sati



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