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Mixed Stock Assessment of Lake-Run Caspian Sea Trout Salmo Caspius in the Lar National Park, Iran Publisher



Tabatabaei SN1 ; Abdoli A1 ; Ahmadzadeh F1 ; Primmer CR2 ; Swatdipong A3 ; Hashemzadeh Segherloo I4
Authors
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Authors Affiliations
  1. 1. Department of Biodiversity and Ecosystem Management, Environmental Research Institute, University of Shahid Beheshty, G.C. Velenjak, Tehran, Iran
  2. 2. Organismal and Evolutionary Biology Research Program, Faculty of Biological and Environmental Sciences, University of Helsinki, P.O. Box 56, Helsinki, 00014, Finland
  3. 3. Department of Genetics, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand
  4. 4. Department of Fisheries and Environmental Sciences, Faculty of Natural Resources and Earth Sciences, ShahreKord University, P.B. 115, ShahreKord, Iran

Source: Fisheries Research Published:2020


Abstract

A total of 120 Caspian Sea trout specimens from five streams and Lar Lake of the Lar National Park plus 27 Caspian Sea trout specimens (out-group) from the Babolrud River drainage in the Caspian Sea Basin (Iran) were analyzed using 12 microsatellite loci to assess population genetic structure and to estimate the contribution of each population to the lake-run stock. In addition to the Babolrud River population that was significantly differentiated (P < 0.001) from that in Lar National Park, the Dalichay population was significantly differentiated from other populations (P < 0.001). The Dalichay and Absefid populations showed no contribution to the lake-run trout stock, while the others that did not show population genetic structure showed a 100% contribution to the lake-run trout stock. The different contributions to the lake-run trout stock estimated here may be related to the habitat qualities that make the habitats suitable for natural Caspian Sea trout production or to different migratory behaviors between resident and lake-run trout. The results show that more stringent protection of the stream habitats for the contributing populations should be considered in order to sustain recreational fishing in the lake. © 2020 Elsevier B.V.
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