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Avigliano E, Niklitschek E, Chung MT, Diaz B, Chalde T, Di Prinzio C, Solimano P, Llompart F, Garcés C, Diaz Ochoa J, Aldea C, Huang KF, Duquenoy C, Leisen M, Volpedo A. Isotope geochemistry as a natural tag of fish in Patagonian freshwater environments: The invasive Chinook salmon case. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 873:162395. [PMID: 36842575 DOI: 10.1016/j.scitotenv.2023.162395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/30/2023] [Accepted: 02/18/2023] [Indexed: 06/18/2023]
Abstract
Patagonian aquatic environments have been invaded since the end of the last century by different species of salmonids. Knowing the natal origin and homing/straying rate of the salmonids in colonised environments is essential to understanding the dispersal mechanisms and developing management plans. In the last two decades, Chinook salmon Oncorhynchus tshawytscha showed the greatest natural dispersal capacity in Patagonia. The main goal of this study was to evaluate the environmental strontium isotope ratio (87Sr/86Sr) as a potential natural tag to infer the natal origin and ontogenetic habitat use of salmonids in Patagonia, specifically Chinook salmon. 87Sr/86Sr ratio was determined in water samples from 26 sites distributed in 14 Atlantic and Pacific basins in low and high water seasons. Environmental 87Sr/86Sr showed greater spatial than temporal variation, revealing great potential as a tool to infer the natal origin and life history of several migratory fish species in Patagonia. Otolith core-to-edge 87Sr/86Sr profiles were also analysed in 108 Chinook salmon from six basins. A cluster analysis based on the Unweighted Pair Group method (UPGMA) and Euclidean distances without prior classification grouped the sampled rivers into five main groups with significantly different (p < 0.05) isotopic ratios, sometimes integrated basins with different slopes (Atlantic or Pacific). The cluster analysis based on the natal 87Sr/86Sr period in otolith (∼natal origin) showed clear segregation between the Atlantic and Pacific samples. A mismatch between water and otolith natal 87Sr/86Sr ratio was detected in some Atlantic basins (e.g. De las Vueltas River in Santa Cruz Basin) and Pacific (e.g. Liquiñe Basin) and, which could be explained either by straying behaviours or by large geochemical variability between tributaries, within river systems. Our results showed that 87Sr/86Sr is a useful natural tag to trace the life history of migratory fishes in Patagonia, especially for invasive species such as Chinook salmon.
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Affiliation(s)
- Esteban Avigliano
- CONICET- Universidad de Buenos Aires, Instituto de Investigaciones en Producción Animal (INPA), Facultad de Ciencias Veterinarias, Av. Chorroarin 280 (C1427CWO), Buenos Aires, Argentina.
| | - Edwin Niklitschek
- Universidad de Los Lagos, Centro i∼mar, Camino a Chinquihue Km.6, Puerto Montt, Región de Los Lagos 5480000, Chile
| | - Ming-Tsung Chung
- Institute of Oceanography, National Taiwan University, Taipei 106, Taiwan
| | - Boris Diaz
- INTA EEA Santa Cruz, CR Patagonia Sur. Mahatma Gandhi 1322, Rio Gallegos (CP9400), Santa Cruz, Argentina
| | - Tomás Chalde
- Laboratorio de Ecología, Fisiología y Evolución de Organismos Acuáticos, Centro Austral de Investigaciones Científicas, Bernardo Houssay 200 (V9410CAB), Ushuaia, Tierra del Fuego, Argentina
| | - Cecilia Di Prinzio
- Centro de Investigación Esquel de Montaña y Estepa Patagónica (CONICET-FCNyCS- LIESA-UNPSJB), Roca 780 (9200), Esquel, Chubut, Argentina
| | - Patricio Solimano
- Universidad Nacional de Río Negro, Centro de Investigaciones y Transferencia de Río Negro, Rotonda Cooperación y Ruta Provincial N°1, C.P 8500, Viedma, Río Negro, Argentina
| | - Facundo Llompart
- Laboratorio de Ecología, Fisiología y Evolución de Organismos Acuáticos, Centro Austral de Investigaciones Científicas, Bernardo Houssay 200 (V9410CAB), Ushuaia, Tierra del Fuego, Argentina; Instituto de Ciencias Polares, Ambiente y Recursos Naturales (UNTDF - ICPA), Universidad Nacional de Tierra del Fuego, Ushuaia, Argentina
| | - Cristóbal Garcés
- Universidad Austral de Chile, Programa de Magister en Recursos Hídricos, Chile
| | - Javier Diaz Ochoa
- Departamento de Ciencias y Recursos Naturales, Facultad de Ciencias, Universidad de Magallanes, Av. Bulnes 08155, Punta Arenas 6210427, Chile
| | - Cristian Aldea
- Departamento de Ciencias y Recursos Naturales, Facultad de Ciencias, Universidad de Magallanes, Av. Bulnes 08155, Punta Arenas 6210427, Chile; Centro de Investigación GAIA-Antártica, Universidad de Magallanes, Av. Bulnes 08155, Punta Arenas 6210427, Chile
| | - Kuo-Fang Huang
- Institute of Earth Sciences, Academia Sinica, Taipei 115, Taiwan
| | - Camille Duquenoy
- Géosciences Environnement Toulouse (GET), Université de Toulouse, UPS, CNRS, IRD, CNES, 14 avenue E. Belin, 31400 Toulouse, France
| | - Mathieu Leisen
- Géosciences Environnement Toulouse (GET), Université de Toulouse, UPS, CNRS, IRD, CNES, 14 avenue E. Belin, 31400 Toulouse, France
| | - Alejandra Volpedo
- CONICET- Universidad de Buenos Aires, Instituto de Investigaciones en Producción Animal (INPA), Facultad de Ciencias Veterinarias, Av. Chorroarin 280 (C1427CWO), Buenos Aires, Argentina
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Figueroa-Muñoz G, Arismendi I, Urzúa Á, Guzmán-Rivas F, Fierro P, Gomez-Uchida D. Consumption of marine-derived nutrients from invasive Chinook salmon (Oncorhynchus tshawytscha) transfer ω-3 highly unsaturated fatty acids to invasive resident rainbow trout (O. mykiss). THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 844:157077. [PMID: 35780893 DOI: 10.1016/j.scitotenv.2022.157077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 06/19/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
Marine-derived nutrients (MDN) contained in gametes (mature eggs and sperm), carcasses and metabolic wastes from anadromous migratory salmon can transfer energy and materials to fresh water, thereby affecting the structure and function of stream ecosystems. This is crucial among ecosystems where humans have mediated biological invasions by propagating non-native species. Previous studies have demonstrated that consumption of MDN from salmon can benefit both native and invasive resident fishes. Yet, a more detailed understanding of the transfer of biomolecules with important physiological functions such as ω-3 highly unsaturated fatty acids (HUFAs) have received less attention among researchers. Here we demonstrate that consumption of MDN contained in invasive Chinook salmon eggs transfers ω-3 HUFAs (e.g., EPA and DHA) to resident invasive rainbow trout in a river food web. We conducted a field study in river sections previously identified as spawning areas for Chinook salmon in the Cisnes River, Patagonia. Rainbow trout were sampled around salmon spawning areas before, during, and after the salmon spawning season. Additionally, we collected tissue from different food web resources and components of different origin (e.g., primary producers, aquatic and terrestrial items) from the Cisnes River system. Analyses of stomach contents of trout were performed in conjunction with analyses of both lipid content and fatty acid profiles of trout tissue and food web components. Chinook salmon eggs showed higher content of ω-3 HUFAs, especially EPA (31.08 ± 23.08 mg g DW-1) and DHA (27.50 ± 14.11 mg g DW-1) than either freshwater or terrestrial components (0-6.10 mg g DW-1 both EPA and DHA). We detected marked shifts in the fatty acid profile (~six-fold increase in EPA and DHA) of trout following consumption of Chinook salmon eggs. Our findings suggest that MDN via consumption of salmon eggs by resident rainbow trout may positively influence resident trout and likely contribute to gauge synergistic interactions between invaders on receiving ecosystems of Patagonia.
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Affiliation(s)
- Guillermo Figueroa-Muñoz
- Programa Magíster en Ciencias mención Pesquerías, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160-C, Concepción, Chile; Genomics in Ecology, Evolution, and Conservation Laboratory (GEECLAB), Department of Zoology, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile; Núcleo Milenio INVASAL, Concepción, Chile; Universidad Católica de Temuco, Facultad de Recursos Naturales, Departamento de Ciencias Agropecuarias y Acuícolas, Temuco, Chile
| | - Ivan Arismendi
- Department of Fisheries, Wildlife, and Conservation Sciences, Oregon State University, Corvallis, OR 97330, USA
| | - Ángel Urzúa
- Departamento de Ecología, Facultad de Ciencias, Universidad Católica de la Santísima Concepción (UCSC), Casilla 297, Concepción, Chile; Centro de Investigación en Biodiversidad y Ambientes Sustentables (CIBAS), Universidad Católica de la Santísima Concepción (UCSC), Casilla 297, Concepción, Chile
| | - Fabián Guzmán-Rivas
- Departamento de Ecología, Facultad de Ciencias, Universidad Católica de la Santísima Concepción (UCSC), Casilla 297, Concepción, Chile; Centro de Investigación en Biodiversidad y Ambientes Sustentables (CIBAS), Universidad Católica de la Santísima Concepción (UCSC), Casilla 297, Concepción, Chile
| | - Pablo Fierro
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - Daniel Gomez-Uchida
- Genomics in Ecology, Evolution, and Conservation Laboratory (GEECLAB), Department of Zoology, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile; Núcleo Milenio INVASAL, Concepción, Chile.
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Muñoz NJ, Reid B, Correa C, Madriz RI, Neff BD, Reynolds JD. Emergent trophic interactions following the Chinook salmon invasion of Patagonia. Ecosphere 2022. [DOI: 10.1002/ecs2.3910] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Nicolas J. Muñoz
- Earth to Ocean Research Group Simon Fraser University Burnaby British Columbia Canada
| | - Brian Reid
- Laboratorio de Limnología Centro de Investigación en Ecosistemas de la Patagonia Coyhaique Chile
| | - Cristian Correa
- Instituto de Conservación Biodiversidad y Territorio Universidad Austral de Chile Valdivia Chile
- Centro de Humedales Río Cruces Universidad Austral de Chile Valdivia Chile
| | - Ruben Isaí Madriz
- Independent Investigator Puerto Rio Tranquilo Chile
- Independent Investigator Aurora Illinois USA
| | - Bryan D. Neff
- Department of Biology University of Western Ontario London Ontario Canada
| | - John D. Reynolds
- Earth to Ocean Research Group Simon Fraser University Burnaby British Columbia Canada
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