Condition and size of the non‐native pikeperch Sander lucioperca (Linnaeus, 1758) in Portuguese river basins
Abstract We studied life‐history traits focusing on the growth and condition of the pikeperch Sander lucioperca to evaluate its phenotypic plasticity when introduced to new environments. Pikeperch is a non‐native fish introduced to Iberian freshwater fauna in 1998 that quickly spread to other river...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-05-01
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| Series: | Ecology and Evolution |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/ece3.7394 |
| _version_ | 1818915136588480512 |
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| author | João Gago Ana Neves Christos Gkenas Diogo Ribeiro Filipe Ribeiro |
| author_facet | João Gago Ana Neves Christos Gkenas Diogo Ribeiro Filipe Ribeiro |
| author_sort | João Gago |
| collection | DOAJ |
| description | Abstract We studied life‐history traits focusing on the growth and condition of the pikeperch Sander lucioperca to evaluate its phenotypic plasticity when introduced to new environments. Pikeperch is a non‐native fish introduced to Iberian freshwater fauna in 1998 that quickly spread to other river basins through human‐mediated activities, occupying now a wide variety of habitats along mainland Portugal. Condition (K and SMI), fork length at age, and length–weight relationships were studied for Portuguese populations. Pikeperch fork length for ages 1, 2, 3, and 4 was different between several populations. We applied generalized linear models (GLM) to study the influence of habitat type, latitude, altitude, time after first detection, and fish prey richness on pikeperch populations size at age 4 and condition. We observed higher condition values on populations from lower altitudes at lentic systems more recently introduced. But higher fork length at age 4 was found in populations from higher altitudes, on older populations with higher prey richness. Habitat type, time since first detection, and fish fauna composition are discussed as the main environmental factors explaining the observed phenotypic plasticity with concerns on predatory impact on native fauna. |
| first_indexed | 2024-12-19T23:57:29Z |
| format | Article |
| id | doaj.art-badd402facf94069971f7a6364b3494d |
| institution | Directory Open Access Journal |
| issn | 2045-7758 |
| language | English |
| last_indexed | 2024-12-19T23:57:29Z |
| publishDate | 2021-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecology and Evolution |
| spelling | doaj.art-badd402facf94069971f7a6364b3494d2022-12-21T20:00:58ZengWileyEcology and Evolution2045-77582021-05-0111105065507410.1002/ece3.7394Condition and size of the non‐native pikeperch Sander lucioperca (Linnaeus, 1758) in Portuguese river basinsJoão Gago0Ana Neves1Christos Gkenas2Diogo Ribeiro3Filipe Ribeiro4Escola Superior Agrária – Instituto Politécnico de Santarém Quinta do Galinheiro – S. Pedro Santarém PortugalMARE Centro de Ciências do Mar e do Ambiente Faculdade de Ciências da Universidade de Lisboa, Campo Grande Lisboa PortugalMARE Centro de Ciências do Mar e do Ambiente Faculdade de Ciências da Universidade de Lisboa, Campo Grande Lisboa PortugalMARE Centro de Ciências do Mar e do Ambiente Faculdade de Ciências da Universidade de Lisboa, Campo Grande Lisboa PortugalMARE Centro de Ciências do Mar e do Ambiente Faculdade de Ciências da Universidade de Lisboa, Campo Grande Lisboa PortugalAbstract We studied life‐history traits focusing on the growth and condition of the pikeperch Sander lucioperca to evaluate its phenotypic plasticity when introduced to new environments. Pikeperch is a non‐native fish introduced to Iberian freshwater fauna in 1998 that quickly spread to other river basins through human‐mediated activities, occupying now a wide variety of habitats along mainland Portugal. Condition (K and SMI), fork length at age, and length–weight relationships were studied for Portuguese populations. Pikeperch fork length for ages 1, 2, 3, and 4 was different between several populations. We applied generalized linear models (GLM) to study the influence of habitat type, latitude, altitude, time after first detection, and fish prey richness on pikeperch populations size at age 4 and condition. We observed higher condition values on populations from lower altitudes at lentic systems more recently introduced. But higher fork length at age 4 was found in populations from higher altitudes, on older populations with higher prey richness. Habitat type, time since first detection, and fish fauna composition are discussed as the main environmental factors explaining the observed phenotypic plasticity with concerns on predatory impact on native fauna.https://doi.org/10.1002/ece3.7394condition factorgrowthnon‐native fishesphenotypic plasticitypikeperchSander lucioperca |
| spellingShingle | João Gago Ana Neves Christos Gkenas Diogo Ribeiro Filipe Ribeiro Condition and size of the non‐native pikeperch Sander lucioperca (Linnaeus, 1758) in Portuguese river basins Ecology and Evolution condition factor growth non‐native fishes phenotypic plasticity pikeperch Sander lucioperca |
| title | Condition and size of the non‐native pikeperch Sander lucioperca (Linnaeus, 1758) in Portuguese river basins |
| title_full | Condition and size of the non‐native pikeperch Sander lucioperca (Linnaeus, 1758) in Portuguese river basins |
| title_fullStr | Condition and size of the non‐native pikeperch Sander lucioperca (Linnaeus, 1758) in Portuguese river basins |
| title_full_unstemmed | Condition and size of the non‐native pikeperch Sander lucioperca (Linnaeus, 1758) in Portuguese river basins |
| title_short | Condition and size of the non‐native pikeperch Sander lucioperca (Linnaeus, 1758) in Portuguese river basins |
| title_sort | condition and size of the non native pikeperch sander lucioperca linnaeus 1758 in portuguese river basins |
| topic | condition factor growth non‐native fishes phenotypic plasticity pikeperch Sander lucioperca |
| url | https://doi.org/10.1002/ece3.7394 |
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