Sardine (Sardina pilchardus) spawning in the light of fat content analysis

Scientia Marina

Ivana Anđelić¹  Vanja Čikeš Keč²  Barbara Zorica² 

[1] Faculty of Science;Institute of Oceanography and Fisheries;

关键词: small pelagics;    lipids;    reproduction;    adriatic;    mediterranean;   

DOI  :  10.3989/scimar.04898.07A

来源: DOAJ

【 摘 要 】

Sardine samples from commercial catches obtained by purse seiners operating in Croatian fishing grounds (eastern Adriatic Sea) were collected monthly from March 2017 to February 2018 (excluding January due to a fishing ban). A total of 1085 sardines were analysed. Their total body length and mass ranged from 11.5 to 16.9 cm (mean±SD: 13.9±0.03 cm) and from 11.30 to 54.03 g (mean±SD: 20.31±0.161 g), respectively. Analysis of the length-mass relationship showed positive allometric growth (b=3.3573, r=0.948). Female specimens were predominant (m/f=0.404). According to the monthly gonadosomatic index values, spawning occurred from November to February, which was consistent with previous investigations. The monthly analysis of fat content in the gonads, liver and muscles indicated that the fat content in each studied tissue oscillated seasonally regardless of sex. These alternations were linked to the sardine’s reproductive cycle.

【 授权许可】

Unknown