Showing 3 results for Barbus
Sahar Biukani, Ali Safarpour, Bahram Falahatkar,
Volume 2, Issue 1 (6-2013)
Abstract
Fish fauna at three stations along the Gamasiab River, Kermanshah Province, were investigated for 9 months. Samples were caught using electroshocker and cast net of 1.5 cm mesh size and had their 20 morphometric and 10 meristic characteristics recorded. Twenty three species and subspecies in 14 genera and 5 families were identified, including: minnows (Cyprinidae), sisorid catfishes (Sisoridae), bagrid catfishes (Bagridae), river loaches (Balitoridae) and spiny eels (Mastacembelidae). The highest number of species (18, 78.3%) and genera (10, 71.4%) belonged to Cyprinidae, while 2 species (8.7%) in 1 genus (7.1%) belonged to Balitoridae; the other three families each contained 1 genus and 1 species (4.3%). The lowest species diversity (9 species) was observed in upstream station while the highest diversity (16 species) was in downstream station. Among the identified fish, only Pseudorasbora parva was recognized as exotic and the others were native.
, Soheil Eagderi, , ,
Volume 3, Issue 3 (12-2014)
Abstract
The geometric morphometrics method was applied to study the morphological differences in 95 specimens of Kura barbel (Barbus lacerta, Heckel 1834) collected from three riverine ecosystems of the Sefidrud basin, viz. Taleghan, Totkabon and Kloraz Rivers. For this purpose, the left sides of the specimens were photographed. Then, 14 Landmark-points were defined and digitized on 2D pictures using Tpsdig2 software. The landmark data, after generalized Procrustes analyzing, were analyzed by PCA, CVA with p-value obtained from permutation test and cluster analysis. The results showed a significant differences between the populations in terms of body shape (P
M. Naderi Jolodar, A. Roohi, M. Ebrahimzadeh,
Volume 7, Issue 1 (3-2018)
Abstract
Aims: Being important both economically and in terms of protection, Luciobarbus capito is at risk of extinction. There are very few studies about the fish of Shahid Rajaee dam and the Tajan River. A significant number of Luciobarbus capitos is present in the dam and upstream. The present study was conducted with the aim of evaluating the growth characteristics and nutritional strategies of Luciobarbus capito in reservoir behind the Shahid Rajaee dam, Sari.
Materials & Methods: The present experimental study was carried out on 180 Luciobarbus capitos in Shahid Rajaee dam, Sari during 4 seasons of 2014 to 2015. The samples were fixed in formalin 10% and the biological and nutritional factors related to growth were investigated. The data were analyzed with SYSTAT 9 and Excel 2003 software.
Findings: The sex ratio of males to females was 1.14/1. The growth pattern of this allometric species was negative (w=0.015×L2.888; b=2.888). In males, allometric was positive and in females, allometric was negative. The mean length and weight of male and female had a significant difference (p<0.05), and the relationship between length and weight in fish was progressive. This species approaches the maximum predicted length with a growth rate of 0.1; the maximum estimated length for fish was 138.6 cm. Nutritional behavior index for under 4 years group showed a herbal diet (RLG=2.4±0.1) and, after puberty, it was inclining to a whole foods diet (RLG=1.2±0.6).
Conclusion: The allometric growth pattern is a negative for Luciobarbus capito, and in all seasons, it has a whole foods diet.
