Acta Adriatica, Vol. 49 No. 1, 2008.
Izvorni znanstveni članak
Biometry, length-length and length-weight relationships of juveniles and adults of Atlantic bonito, Sarda sarda, in the eastern Middle Adriatic Sea
Barbara ZORICA
; Institut za oceanografiju i ribarstvo, P.P. 500, 21 000 Split, Hrvatska
Gorenka SINOVČIĆ
; Institut za oceanografiju i ribarstvo, P.P. 500, 21 000 Split, Hrvatska
Sažetak
This paper presents some biological features of juvenile and adult specimens of Atlantic bonito, Sarda sarda (Bloch, 1793), in the eastern middle Adriatic Sea. A total of 194 specimens were analysed, of which 93 were juveniles and 101 were adults. Juvenile individuals ranged from 5.7 to 8.4 cm while adults ranged from 39.3 to 56.7 cm. In order to analyse biometry, nine morphometric characters were analysed. Length-length equations for overall converted body lengths of fish were linear. Comparison of length-length relationships between juvenile and adult specimens showed statistically significant differences in almost all morphometric characteristics, except for the fork length–second dorsal fin base. Females insignificantly prevailed in adults. Overall gonads were in post-spawning state. Juveniles were unsexed. Length-weight relationships of juveniles and adults were W = 0.0033LF3.424 and W = 0.0149LF2.984, respectively.
Ključne riječi
Sarda sarda; Adriatic Sea; juveniles; biometry; length-weight relationship
Hrčak ID:
26478
URI
Datum izdavanja:
1.7.2008.
Posjeta: 1.957 *