Predation By the Nonnative Rainbow Trout, Oncorhynchus Mykiss (Walbaum, 1792), on the Native Biota from Freshwater Environment of the Central Andes (Argentina)

Author:

Rios Juan Manuel1ORCID

Affiliation:

1. Instituto de Medicina y Biología Experimental de Cuyo , CCT Mendoza-CONICET, Z. C. 330 Mendoza , Argentina , AR-5500

Abstract

Abstract This study aimed to examine the impact of the nonnative rainbow trout Oncorhynchus mykiss on the native biota that inhabits freshwater environments of the central Andes, Argentina. To assess the predation pressure on native Andean vertebrates and invertebrates, the stomach contents were taken from rainbow trout caught at three Andean sites. Results showed that the major prey items were the native torrent catfish Hatcheria macraei (100% in diet), Elmidae coleopterans (23%), and the native crab Aegla affinis (38%) in the rainbow trout stomachs collected from Cipolletti Dam (North zone), Yaucha River (Middle zone), and Vaina Stream (South zone), respectively. This preliminary study exhibits the predation pressure of the rainbow trout on native Andean species and suggests that policies are necessary to control the release of fry of this exotic salmonid in the Andes region.

Publisher

Walter de Gruyter GmbH

Reference20 articles.

1. 1. Alvear P. A., Rechencq M., Macchi P. J., Alonso M. F., Lippolt G. E., Denegri M. A. and Vigliano P. H., 2007 – Composición, distribución y relaciones tróficas de la ictiofauna del río Negro, Patagonia Argentina, Ecología Austral, 17, 231-246. (in Spanish)

2. 2. Di Prinzio C. Y., Miserendino M. L. and Casaux R., 2013 – Feeding strategy of the non-native rainbow trout, Oncorhynchus mykiss, in low-order Patagonian streams, Fisheries Management and Ecology, 20, 414-425.

3. 3. Domínguez E. and Fernández H. R., 2009 – Macroinvertebrados bentónicos sudamericanos. Sistemática y biología, Fundación Miguel Lillo, Tucumán, Argentina, 656. (in Spanish)

4. 4. Figueroa R., Ruiz V. H., Berrios P., Palma A., Villegas P. and Andreu-Soler A., 2010 ‒ Trophic ecology of native and introduced fish species from the Chillán River, South-Central Chile, Journal of Applied Ichthyology, 26, 1, 78-83.

5. 5. Global Invasive Species Database, 2020 – Species profile: Oncorhynchus mykiss, available at: http://www.iucngisd.org/gisd/species.php?sc=103.

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