Please use this identifier to cite or link to this item: https://biore.bio.bg.ac.rs/handle/123456789/3335
Title: Molecular and ecological features of the soft-muzzled trout Salmo obtusirostris (Heckel, 1852) in the Zeta River, Montenegro
Authors: Mrdak, Danilo
Nikolić, Vera 
Tošić, Ana 
Simonović, Predrag 
Keywords: food analysis;habitat preferences;microsatellites;Salmo obtusirostris;Zeta River
Issue Date: 1-Feb-2012
Project: bilateral cooperation project
Evolution in Heterogeneous Environments: Adaptation Mechanisms, Biomonitoring and Conservation of Biodiversity 
Grants 23/08 and 18/09
Journal: Biologia
Abstract: 
This paper reports about the occurrence of soft-muzzled trout in Montenegro. It was found only in the Zeta River, at three localities, always in low abundance. Results of genetic investigation on twelve microsatellite loci (i. e., high Fst and high heterozygozity values) as well as lack of hybridization with the putative brown trout unequivocally confirm that the soft-muzzled trout from the Zeta River is a species distinct from the putative brown (Salmo cf. farioides) and marble (Salmo marmoratus) trout that live in sympatry with it. This paper also confirms high genetic diversity of Zeta River soft - muzzled trout population. Habitat and feeding analyses revealed that soft-muzzled trout reduce the competition with syntopic putative brown trout by displacing as the bottom-dweller in their common type of habitat, as well as by narrowing its feeding niche and feeding dominantly with the benthic macroinvertebrates, the Gammarus shrimps as their far dominant feeding item. Results also revealed that they did not share the same habitat with marble trout. Due to this population low abundance and their importance on species level, Zeta River soft-muzzled trout conservation needs are urgent in terms of in situ protection and repopulation measures. © 2011 Versita Warsaw and Springer-Verlag Wien.
URI: https://biore.bio.bg.ac.rs/handle/123456789/3335
ISSN: 0006-3088
DOI: 10.2478/s11756-011-0150-y
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