Habitat preference modeling of Brond-snout (Chondrostoma regium); Case study: Dinorab River | ||
| شیلات | ||
| Volume 78, Issue 1, March 2025, Pages 43-54 PDF (1.19 M) | ||
| Document Type: Research Paper | ||
| DOI: 10.22059/jfisheries.2025.385193.1445 | ||
| Authors | ||
| Seyed Mohammad Ahmadian; Soheil Eagderi* ; Hadi Poorbagher | ||
| Department of Fisheries, Faculty of Natural Resources, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran. | ||
| Abstract | ||
| Habitat suitability index (HSI) modeling describes a wide range of management requirements or species habitat mapping. HSI models were used to investigate the habitat preference and habitat quality of the Brond-snout, Chondrostoma regium, in the Dinorab river, a sub-basin of the Karkheh. Sampling was done in the Dinorab river during the fall season, from the downstream to the upstream, in 5 stations in 2018, each with three replications and a total of 15 habitats. Eight environmental factors were measured, including river width, potamal width, depth, temperature, total dissolved solids, electrical conductivity, pH, and velocity. During the sampling period, 142 specimens were caught and released after restoring biological status in the Dinorab river. The results showed that the highest and lowest SI values for the habitat preference of C. regium in the Dinorab river were related to potamal width (0.809) and total dissolved solids (0.499), respectively. The total habitat desirability index (0.573) showed that the Dinorab river is a medium-desirability habitat for C. regium. | ||
| Keywords | ||
| Ecology; Karkheh basin; Modeling; Suitability index | ||
| References | ||
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