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Some biological characteristics of the endemic Neretvan nase, Chondrostoma knerii Heckel, 1843, in the Hutovo Blato wetlands (Bosnia and Herzegovina) (CROSBI ID 132298)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Glamuzina, Branko ; Bartulović, Vlasta ; Dulčić, Jakov ; Conides, Alexis ; Tutman, Pero ; Matić-Skoko, Sanja ; Gavrilović, Ana ; Jug-Dujaković, Jurica ; Hasković, Edhem ; Ivanc, Aleksander et al. Some biological characteristics of the endemic Neretvan nase, Chondrostoma knerii Heckel, 1843, in the Hutovo Blato wetlands (Bosnia and Herzegovina) // Journal of applied ichthyology, 23 (2007), 3; 221-225

Podaci o odgovornosti

Glamuzina, Branko ; Bartulović, Vlasta ; Dulčić, Jakov ; Conides, Alexis ; Tutman, Pero ; Matić-Skoko, Sanja ; Gavrilović, Ana ; Jug-Dujaković, Jurica ; Hasković, Edhem ; Ivanc, Aleksander ; Zovko, Nikola

engleski

Some biological characteristics of the endemic Neretvan nase, Chondrostoma knerii Heckel, 1843, in the Hutovo Blato wetlands (Bosnia and Herzegovina)

The paper presents for the first time important information regarding population structure, growth rate, length-weight relationships and reproductive aspects of the Neretvan nase, Chondrostoma knerii, a fish species endemic to the Neretva River. Chondrostoma knerii is mainly distributed in the lower parts and delta of the Neretva River wetlands and its tributaries (Krupa River, Hutovo Blato wetlands) shared between Croatia and Bosnia Herzegovina. Samples were collected between 2000 and 2001 during the reproduction period of the species in the Hutovo Blato wetlands area. Population structure analysis indicates that all ages appear, from 0 to 7+. Longevity was estimated at 7.5 years. Main age classes were 3, 4 and 5 years, totalling 91.00% of all individuals. Males ranged between 2 and 5+ years of age, and females between 1 and 7+ years of age. Maximum length was 28.04 cm and maximum weight, estimated from the length-weight relationship, as 206.8 g. Found scattered in streams of high water velocity, eggs were attached to the substrate (aquatic plants or solid objects). Correlation between egg number and length and weight was extremely low. The gonad-somatic index distribution showed an inverse proportionality with total length. Main length classes for reproduction ranged from 20 to 24 cm, while fecundity ranged between 2000 and 16 000 eggs per female.

neretvan nase; Neretva River; reproduction; biology

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Podaci o izdanju

23 (3)

2007.

221-225

objavljeno

0175-8659

Povezanost rada

Biologija

Indeksiranost