AGE STRUCTURE AND REPRODUCTIVE PATTERN OF CHALCALBURNUS BELVICA (KARAMAN, 1924) IN LAKE MIKRI PRESPA (NORTHWESTERN GREECE)
In: Israel Journal of Ecology and EvolutionSearch for other papers by A. SINIS in
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Age, growth, and reproduction of Chalcalburnus belvica from Lake Mikri Prespa (NW Greece) were analyzed using scale readings and size frequency histograms. Males aged 1+ and 2+ were dominant in the catches; high mortality at ages 3+ and 4+ precluded their occurrence at older ages. Females always had a higher mean observed length than males of the same age and grew to age 8+. The weight-length relationship was allometric with b coefficients greater than 3 for both sexes. C. belvica matures genitally at age 1+ in both sexes. Reproduction occurs in the lake, in contrast to other fish species of the same genus which migrate to the rivers to reproduce. The reproduction pattern reveals a prolonged spawning period from April to August, with multiple egg sheddings. Von Bertalanffy's growth equation yields a rather low growth rate (k = 0.230) and a relatively high maximum fork length (L∞ = 250 mm).
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AGE STRUCTURE AND REPRODUCTIVE PATTERN OF CHALCALBURNUS BELVICA (KARAMAN, 1924) IN LAKE MIKRI PRESPA (NORTHWESTERN GREECE)
In: Israel Journal of Ecology and EvolutionSearch for other papers by A. SINIS in
Current site
Google Scholar
PubMed
Search for other papers by D. PETRIDIS in
Current site
Google Scholar
PubMed
Age, growth, and reproduction of Chalcalburnus belvica from Lake Mikri Prespa (NW Greece) were analyzed using scale readings and size frequency histograms. Males aged 1+ and 2+ were dominant in the catches; high mortality at ages 3+ and 4+ precluded their occurrence at older ages. Females always had a higher mean observed length than males of the same age and grew to age 8+. The weight-length relationship was allometric with b coefficients greater than 3 for both sexes. C. belvica matures genitally at age 1+ in both sexes. Reproduction occurs in the lake, in contrast to other fish species of the same genus which migrate to the rivers to reproduce. The reproduction pattern reveals a prolonged spawning period from April to August, with multiple egg sheddings. Von Bertalanffy's growth equation yields a rather low growth rate (k = 0.230) and a relatively high maximum fork length (L∞ = 250 mm).
| All Time | Past 365 days | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 125 | 24 | 2 |
| Full Text Views | 8 | 0 | 0 |
| PDF Views & Downloads | 7 | 0 | 0 |
