Pregled bibliografske jedinice broj: 274597
Occurence, structure, growth and first sexual maturity of sardine, Sardina pilchardus (walb., 1792) in the Krka river estuary
Occurence, structure, growth and first sexual maturity of sardine, Sardina pilchardus (walb., 1792) in the Krka river estuary // 41st European Marine Biology Symposium
Cork: University College Cork, 2006. (poster, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 274597 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Occurence, structure, growth and first sexual maturity of sardine, Sardina pilchardus (walb., 1792) in the Krka river estuary
Autori
Sinovčić, Gorenka ; Zorica, Barbara ; Čikeš Keč, Vanja
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
41st European Marine Biology Symposium
/ - Cork : University College Cork, 2006
Skup
41st European Marine Biology Symposium
Mjesto i datum
Cork, Irska, 04.09.2006. - 08.09.2006
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Occurence; Structure; Growth; First sexual maturity; Sardina pilchardus; Adriatic Sea
Sažetak
A total of 1, 245 specimens of sardine, Sardina pilchardus (Walb., 1792), were obtained by random sampling from the Krka river estuary which is a nursery ground for sardine. Sardine were caught by beach seine. Representative samples were collected monthly according to their occurence in this area from October to February during 2002/03, 2003/04 and 2004/05 (spawning period). Monthly fluctuations in the length frequency distributions of sardine were observed. Total length were in range from 4.9 to 12.5 cm (mean 8.31 1.41)cm). The minimum and maximum weights recorded were 1.02g and 11.18g (mean 4.40 1.87g)respectively. Length-weight relationship of sardine was described by the expression W= 0.0068 L 2.9746 (R2 = 0.9588) ; isometric relative growth was established (t=3.159 ; P<0.001). Allometric condition factor (Ka) of sardine specimens, which ranged from 7.5 and 10.5 cm during all three periods of investigation (spawning period), was analysed and showed the highest values at the beginning of autumn, especially during 2002/03 period. Condition coefficient decreased later on to the lowest values which was noted in February. The minimal length at first maturity of these species was 7.1 cm of total length (male). L50 was 8.0 cm and L100 11.5 cm. Highly significant correlation was found (R2=0.955 ; SD=0.9766).
Izvorni jezik
Engleski
Znanstvena područja
Biologija, Biotehnologija
