Habitat effects on morphological plasticity of Saw-belly (Hemiculter leucisculus) in the Zarrineh River (Urmia Lake basin, Iran)
Journal Title: Journal of BioScience and Biotechnology - Year 2017, Vol 6, Issue 1
Abstract
Saw-belly (Hemiculter leucisculus) is a non-native species, which unfortunately spreads in many aquatic ecosystems of Iran. This species has probably introduced to Zarrineh River with commercially cyprinid species from the Caspian Sea basin. The adverse effects of this species on native species can lead to ecological hazards. Therefore, the present study was conducted to investigate the effect of environmental factors on the shape variations of Saw-belly (H. leucisculus) in the Urmia Lake. Hence, a total of 120 Saw-belly specimens were caught from the Zarrineh River. Specimens were photographed using a digital camera and the landmarks put on twodimensional images using TpsDig2 software. General Procrustes Analysis (GPA) was used to remove the effects related to the figure (including size, position and rotation). The significant relationships were found between environmental factors and shape data using Procrustes regression. The results showed that environmental factors including temperature, altitude and velocity had a significant effect on the body shape of Saw-belly. The results can be considered by conservationists and environmentalists to monitoring of this newly introduced fish.
Authors and Affiliations
Ali Reza Radkhah, Hadi Poorbagher, Soheil Eagderi
Keywords
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