Naslov
Abundancija i neke biološke značajke srdele, Sardina pilchardus (Walb., 1792)u obalnom i otvorenom Jadranskom moru
(Abundance and some biological characteristics of sardine Sardina pilchardus (Walb., 1792) in the coastal and open sea waters of the eastern Adriatic (Croatia))

Autori
Sinovčić, Gorenka ; Zorica, Barbara ; Čikeš Keč, Vanja

Vrsta, podvrsta i kategorija rada
Poglavlja u knjigama, znanstveni

Knjiga
II. Savjetovanje o morskoj tehnologiji in memoriam akademiku Zlatku Winkleru

Urednik/ci
Rožanić, Igor

Izdavač
Tehnički fakultet Sveučilišta u Rijeci

Grad
Rijeka

Godina
2008

Raspon stranica
155-164

ISBN
978-953-6326-40-2

Ključne riječi
Sardine, Estuary, Population structure, Condition, Abundance index, Biomass

Sažetak
The fluctuations in abundance, biomass and some biological features (population structure, condition) of sardine, Sardina pilchardus (Walb., 1792), the most important fish species in the Adriatic Sea, were presented. The random samples were obtained from the sardine spawning ground (off Dugi Otok, N=1 628) and from the nursery ground (Zrmanja River estuary, N=2 893). Representative samples of catches realized by purse seine were collected during the 2002-2006 period. Total lengths ranged from 5.0 to 19.5 cm (mean lengths between 7.35± ; 1.005 and 13.87± ; 1.102 cm ; Zrmanja River estuary) and 11.5 to 19.5 (mean lengths between 15.22± ; 1.826 and 16.19± ; 0.854 cm ; off Dugi Otok). A comparison of the allometric condition factor (Ka) of sardine specimens, which ranged from 13.0 and 16.0 cm showed higher values in the area off Dugi Otok (Ka =0.467) than in the area of the Zrmanja River estuary (Ka=0.331), especially during 2003 (Ka =2.653). In terms of the fish abundance index, seasonal fluctuations were noticed. The highest values were observed in the area off Dugi Otok during autumn and in the Zrmanja River estuary during spring.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija

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