Journal ArticleDOI
Ecological Impacts of Nonnative Freshwater Fishes
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TLDR
The present study provides an illustrative conspectus of the most recent literature reporting ecological impacts of non-native freshwater fishes from a wide range of species and geographic locations and concludes with a prospectus of needed areas of scientific inquiry.Abstract:
There is a long history of introduction of non-native fishes in fresh waters and the introduction rate has accelerated greatly over time. Although not all introduced fishes have appreciable effects on their new ecosystems, many exert significant ecological, evolutionary, and economic impacts. For researchers, managers, and policy makers interested in conserving freshwater diversity, understanding the magnitude and array of potential impacts of non-native fish species is of utmost importance. The present study provides an illustrative conspectus of the most recent literature reporting ecological impacts of non-native freshwater fishes from a wide range of species and geographic locations and concludes with a prospectus of needed areas of scientific inquiry. Both directly and indirectly, invasive fishes affect a wide range of native organisms from zooplankton to mammals across multiple levels of biological organizations ranging from the genome to the ecosystem. Although a great deal of knowledge ha...read more
Citations
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Eight questions about invasions and ecosystem functioning
TL;DR: I pose eight questions central to understanding how biological invasions affect ecosystems, assess progress towards answering those questions and suggest ways in which progress might be made.
Journal ArticleDOI
Advancing impact prediction and hypothesis testing in invasion ecology using a comparative functional response approach
Jaimie T. A. Dick,Mhairi E. Alexander,Jonathan M. Jeschke,Anthony Ricciardi,Hugh J. MacIsaac,Tamara B. Robinson,Sabrina Kumschick,Olaf L. F. Weyl,Alison M. Dunn,Melanie J. Hatcher,Rachel A. Paterson,Keith D. Farnsworth,David M. Richardson +12 more
TL;DR: This framework demonstrates how comparisons of invader and native functional responses, within and between Type II and IIIfunctional responses, allow testing of the likely population-level outcomes of invasions for affected species, and describes how recent studies support the predictive capacity of this method.
Journal ArticleDOI
Native invaders – challenges for science, management, policy, and society
TL;DR: Convincing stakeholders to comply with management actions aimed at controlling native invaders creates societal challenges and policy makers must prioritize goals from varied and often conflicting human interests.
Journal ArticleDOI
Homogenization patterns of the world’s freshwater fish faunas
TL;DR: It is demonstrated that current homogenization of the freshwater fish faunas is still low at the world scale but reaches substantial levels in some highly invaded river basins from the Nearctic and Palearctic realms, stressing the need for further understanding of the ecological consequences of homogenized species assemblages.
Journal ArticleDOI
A review of current knowledge, risk and ecological impacts associated with non-native freshwater fish introductions in South Africa.
TL;DR: The aim of this paper is to summarise the current knowledge, risk and ecological impacts associated with non-native freshwater fish introductions in South Africa.
References
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Reduction of a native fish fauna by alien species: an example from Brazilian freshwater tropical lakes
TL;DR: The consequences of introducing Cichla cf.
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A molecular approach to detect hybridisation between crucian carp (Carassius carassius) and non-indigenous carp species (Carassius spp. and Cyprinus carpio)
TL;DR: This study suggests that the release of closely related exotic cyprinids not only poses a threat to the genetic integrity and associated local adaptations of native species, but may also contribute to shifts in community structure through competitive interactions.
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Round Goby Predation on Smallmouth Bass Offspring in Nests during Simulated Catch-and-Release Angling
TL;DR: Round goby Neogobius melanostomus first appeared in Lake Erie in 1993 and now occur in extremely high densities in some areas, where they pose a threat to nest-guarding smallmouth bass Micropterus dolomieu.
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Alteration of Nutrient Cycles and Algal Production Resulting from Fish Introductions into Mountain Lakes
TL;DR: The results of modeling and paleolimnological analyses indicate that introduced trout fundamentally alter nutrient cycles and stimulate primary production by accessing benthic P sources that are not normally available to pelagic communities in oligotrophic mountain lakes.
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The influence of smallmouth bass (Micropterus dolomieu) predation and habitat complexity on the structure of littoral zone fish assemblages
TL;DR: Two distinct fish assemblage types are identified: one characterized by small-bodied species, mainly cyprinids, and a second by large- bodied centrarchid species, e.g., smallmouth bass.