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Please use this identifier to cite or link to this item:
http://hdl.handle.net/10174/35178
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Title: | Genetic Structure and Diversity of Brown Trout (Salmo trutta L.) in Portugal |
Authors: | Pereira, Joana Silva, Sara Almeida, Pedro R. Alexandre, Carlos M. Almeida, Rita Domingues, Andreia Alves, Maria J. Mateus, Catarina S. |
Keywords: | Salmo trutta genetica |
Issue Date: | Jun-2022 |
Publisher: | MDPI |
Citation: | Pereira, J.; Silva, S.;
Almeida, P.R.; Alexandre, C.M.;
Almeida, R.; Domingues, A.; Alves,
M.J.; Mateus, C.S. Genetic Structure
and Diversity of Brown Trout (Salmo
trutta L.) in Portugal. Biol. Life Sci.
Forum 2022, 13, 104. https://doi.org/
10.3390/blsf2022013104 |
Abstract: | Population genetic studies have been extensively used as tools for the management and
conservation of salmonid species and related habitats. The brown trout, Salmo trutta (Linnaeus
1758), is one of the most studied species within its family, and is frequently used as a population
model. It can have a highly complex and variable life history, often presenting a migratory ecotype
(i.e., sea trout), and it is considered an indicator of the quality of aquatic ecosystems. Moreover,
it has a high socioeconomic value for commercial and recreational fishing. The destruction or
alteration of aquatic habitats, over-exploitation, exotic species and climate change are some of the
factors that threaten the sustainability of the species in Portugal. To analyse the genetic structure,
gene flow and connectivity patterns among Portuguese brown trout populations, we sampled
approximately 392 individuals from 15 sites across the distribution of the species in its national
territory. DNA fingerprinting methodologies were carried out to determine the structural differences
between populations, using a set of microsatellite loci developed for salmonids. The overall results
suggest significant genetic differences between the populations sampled. This study has enabled a
breakthrough in understanding the genetic structure of Salmo trutta populations in the southern limit
of the species’ global distribution, assessing the impact of natural and human factors on the genetic
structure of its populations, and consequently developing mitigation measures for the effective
management and conservation of the species. |
URI: | http://hdl.handle.net/10174/35178 |
Type: | article |
Appears in Collections: | BIO - Artigos em Livros de Actas/Proceedings
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