Publication Date:
2021-05-19
Description:
Mullet and mullet products have considerable economic importance at a regional level, especially around the
Caspian Sea. The leaping mullet constitutes an important part of their production.
This study is the first detailed work on the age and growth of the leaping mullet (Liza saliens) from September
2012 to March 2013 in theSouthern coast of the Caspian Sea.Age and growth determinations were based upon
thescale samples taken from 102 fish. Marginal increment analysis was used to validate agedetermination. The
back-calculated lengths stage estimated from the scale showed no differences between in this study. The
maximum age of leaping mullet in the Southern coast of the Caspian Sea was 5 years for males and 6 years for
females.The von Bertalanffy growth functions were Lt=30.415(1-e-0.275(t+0.645)) for males and Lt=34.832(1-e0.211(t+1.009))
for females. A large spread and length overlapcharacterized the age groups. The estimated LengthWeight
relationships were common for the two sexes(W=0.079L3
). The slope (b) values of the length-weight relationship showed that weight of leaping grey mullet in
Mazandaran increased associated with length in isometric. The mean condition factor for males, females
and all specimens were determined as 0.908, 0.900 and 0.897, respectively. According to sex groups, the
mean condition factor of males was slightlyhigher than that of females. The total length for leaping grey mullet
was determined as 23.3 cm.
Description:
Iranian Fisheries Science Research Institute
Description:
Published
Keywords:
Age determination
;
Fish scale
;
Liza saliens
;
Back calculation
Repository Name:
AquaDocs
Type:
Report
,
Refereed
Format:
66pp.
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