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Growth pattern of the endemic Neretvan roach, Rutilus basak (Heckel, 1843) in the Hutovo Blato wetland (CROSBI ID 164721)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Matić-Skoko, Sanja ; Tutman, Pero ; Dulčić, Jakov ; Prusina, Ivana ; Đođo, Željana ; Pavličević, Jerko ; Glamuzina, Branko Growth pattern of the endemic Neretvan roach, Rutilus basak (Heckel, 1843) in the Hutovo Blato wetland // Journal of applied ichthyology, 27 (2011), 3; 813-819. doi: 10.1111/j.1439-0426.2010.01593.x

Podaci o odgovornosti

Matić-Skoko, Sanja ; Tutman, Pero ; Dulčić, Jakov ; Prusina, Ivana ; Đođo, Željana ; Pavličević, Jerko ; Glamuzina, Branko

engleski

Growth pattern of the endemic Neretvan roach, Rutilus basak (Heckel, 1843) in the Hutovo Blato wetland

The growth pattern of the endemic Neretvan roach, Rutilus basak from the Hutovo Blato wetland was analyzed. A total of 441 specimens ranging from 6.0 to 21.7 cm TL were obtained by electro fishing between December 2007 and November 2008. The male - female ratio for all fish combined was 0.33:1.00 ; it changed across length classes. The spawning period extended from February to April, with a peak in the first half of March. The maximum observed age was 10 years. Predominance of age classes 1 to 5 in the catch (77.0% of individuals) was noted. The length-weight relationship showed a positive allometric growth (b = 3.321 ; R2 = 0.957). The parameters of the von Bertalanffy equation were: L∞ = 20.201 cm ; K = 0.257 per year ; t0 = -1.554 year ; R2 = 0.977. This study revealed that R. basak invests energy in reproduction rather than in body size and thus has a relatively fast growth, short life span and precocious maturity. Moreover, elementary biological population parameters are provided that can be used for conservation purposes.

growth pattern; freshwater; endemic; Rutilus basak

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Podaci o izdanju

27 (3)

2011.

813-819

objavljeno

0175-8659

10.1111/j.1439-0426.2010.01593.x

Povezanost rada

Biologija

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