Terrestrial Capabilities of Invasive Fishes and Their Management Implications

Author:

Bressman Noah R1ORCID

Affiliation:

1. Department of Biology, Salisbury University , 1101 Camden Avenue, Salisbury, MD 21801 , USA

Abstract

Synopsis Amphibious fishes have many adaptations that make them successful in a wide variety of conditions, including air-breathing, terrestrial locomotor capabilities, and extreme tolerance of poor water quality. However, the traits that make them highly adaptable may allow these fishes to successfully establish themselves outside of their native regions. In particular, the terrestrial capabilities of invasive amphibious fishes allow them to disperse overland, unlike fully aquatic invasive fishes, making their management more complicated. Despite numerous amphibious fish introductions around the world, ecological risk assessments and management plans often fail to adequately account for their terrestrial behaviors. In this review, I discuss the diversity of invasive amphibious fishes and what we currently know about why they emerge onto land, how they move around terrestrial environments, and how they orient while on land. In doing so, I use case studies of the performance and motivations of nonnative amphibious fishes in terrestrial environments to propose management solutions that factor in their complete natural history. Amphibious fish species have established a disproportionate number of nonative populations globally compared to fully aquatic species. Because of their terrestrial capabilities, we may need to manage amphibious fishes more like amphibians than fully aquatic fishes, but to do so, we need to learn more about how these species perform in a wide range of terrestrial environments and conditions.

Publisher

Oxford University Press (OUP)

Subject

Plant Science,Animal Science and Zoology

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