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A call for global action to conserve native trout in the 21st century and beyond

February 21, 2020

Trout and char (hereafter, trout ) represent some of the more culturally, economically and ecologically important taxa of freshwater fishes worldwide (Kershner, Williams, Gresswell, & Lobón‐Cerviá, 2019a). Native to all continents in the Northern Hemisphere (as well as western Mediterranean Africa), trout belong to seven genera (Oncorhynchus , Salvelinus, Salmo , Hucho, Parahucho, Brachymystax and Salvethymus ), which are distributed across more than 60 countries (Muhlfeld et al., 2019). Despite their broad importance as indicators of biodiversity in cold‐water ecosystems (Haak & Williams, 2013), as well as cultural icons for food and recreation, nearly half of the world's recognised trout species (IUCN, 2018) are imperilled or at risk of global extinction (Muhlfeld et al., 2018, 2019). The root causes of their vulnerability include broad‐scale alteration of landscapes and watersheds, dams, overharvest, pollution, interactions with hatchery‐bred conspecifics and non‐native species. However, emerging threats such as climate change and related problems such as the spread of diseases and parasites pose significant challenges and uncertainties to native trout and their habitats (Kovach et al., 2016; Muhlfeld et al., 2018). Ultimately, conservation of native trout depends on understanding their diversity, a willingness to address threats at their root causes and implementing progressive conservation solutions that promote persistence of these iconic species in the face of growing human pressures.

Citation Information

Publication Year 2020
Title A call for global action to conserve native trout in the 21st century and beyond
DOI 10.1111/eff.12538
Authors Daniel C. Dauwalter, Antonino Duchi, John Epifanio, A.J. Gandolfi, Robert E. Gresswell, Francis Juanes, Jeffrey L. Kershner, Javier Lobón-Cerviá, Philip McGinnity, Andreas Meraner, Pavel Mikheev, Kentaro Morita, Clint C. Muhlfeld, Kurt Pinter, John Post, Gunther Unfer, Leif Asbjørn Vøllestad, Jack E. Williams
Publication Type Article
Publication Subtype Journal Article
Series Title Ecology of Freshwater Fish
Index ID 70210221
Record Source USGS Publications Warehouse
USGS Organization Northern Rocky Mountain Science Center