Global status of trout and char: Conservation challenges in the twenty-first century

Clint C. Muhlfeld; Daniel C. Dauwalter; Vincent S. D’Angelo; Andrew Ferguson; J. Joseph Giersch; Dean Impson; Itsuro Koizumi; Ryan Kovach; Philip McGinnity; Johannes Schoeffmann; John Epifanio; Leif Asbjørn Vøllestad

Global status of trout and char: Conservation challenges in the twenty-first century

By: Clint C. Muhlfeld, Daniel C. Dauwalter, Vincent S. D’Angelo, Andrew Ferguson, J. Joseph Giersch, Dean Impson, Itsuro Koizumi, Ryan Kovach, Philip McGinnity, Johannes Schoeffmann, John Epifanio, and Leif Asbjørn Vøllestad

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Abstract

Freshwater ecosystems are among the most threatened ecosystems in the world (Richter et al. 1997; Strayer and Dudgeon 2010), and freshwater fishes may now be the most threatened group of vertebrates (Ricciardi and Rasmussen 1999; Vorosmarty et al. 2010; Darwall and Freyhof 2016). Of the 7,300 freshwater fish species globally assessed by the International Union for Conservation of Nature (IUCN, www.iucnredlist.org) in 2013, nearly one of every three species was threatened with extinction (Darwall and Freyhof 2016). Growing pressures from a multitude of direct and indirect human stressors (e.g., habitat loss and degradation, pollution, invasive species, overexploitation, diversion or alteration of biological flows, climate change, and others) threaten the persistence of many freshwater fish species and entire aquatic communities around the globe (Limburg et al. 2011). This pattern is particularly true for salmonid fishes (family Salmonidae, subfamily Salmoninae, belonging to the genera Oncorhynchus, Salvelinus, Salmo, Hucho, Parahucho, Brachymystax, and Salvethymus). Salmonids are globally-distributed, coldwater taxa with life-cycles restricted entirely to freshwater ecosystems (typically referred to as trout and char), but also Atlantic and Pacific salmon with more complex anadromous life-histories.

Suggested Citation

Muhlfeld, C.C., Dauwalter, D.C., D’Angelo, V.S., Ferguson, A., Giersch, J.J., Impson, D., Koizumi, I., Kovach, R., McGinnity, P., Schoeffmann, J., Epifanio, J., Vøllestad, L., 2020, Global status of trout and char: Conservation challenges in the twenty-first century, chap. 21 of Trout and char of the world.

Additional publication details
Publication type	Book chapter
Publication Subtype	Book Chapter
Title	Global status of trout and char: Conservation challenges in the twenty-first century
Chapter	21
ISBN	978-1-934874-54-7
Year Published	2020
Language	English
Publisher	American Fisheries Society
Contributing office(s)	Northern Rocky Mountain Science Center
Larger Work Type	Book
Larger Work Subtype	Monograph
Larger Work Title	Trout and char of the world