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Parasites and microbial infections of lamprey (order Petromyzontiformes Berg 1940): A review of existing knowledge and recent studies
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2021
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Source: Journal of Great Lakes Research, 47, S90-S111
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Journal Title:Journal of Great Lakes Research
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Description:The 48 described species of parasitic and non-parasitic lamprey within the order Petromyzontiformes span much of the globe. Although the sea lamprey (Petromyzon marinus) is an unwanted invasive in the Laurentian Great Lakes, most lamprey species are of ecological and cultural value, and of conservation concern. Infectious diseases affect fish health, growth, reproduction, and recruitment; yet, the impact of pathogens that cause them in lamprey have not been comprehensively assessed. This review collates existing information to gain a better understanding of pathogen distribution in lamprey populations. At least 46 genera of parasites, seven genera of bacteria, two genera of fungi and oomycetes, and two viruses belonging to two families have been documented to occur in lamprey, most of which have also been identified in other fish species. Many pathogens of lamprey have not been described completely. Moreover, many details of the host-pathogen interactions in lamprey remain unknown, leaving links between pathogens and disease causation unclear. This knowledge gap is extended by the lack of studies on lamprey immune systems, nor have Koch's or Rivers' postulates for most lamprey pathogens been fulfilled. Designing future studies aimed at addressing these knowledge shortfalls will not only clarify the effects that infectious diseases have on imperiled lamprey populations, but also contribute to assessments of potential biocontrol for invasive lamprey populations in the future.
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Source:Journal of Great Lakes Research, 47, S90-S111
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ISSN:0380-1330
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Rights Information:CC BY-NC-ND
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Compliance:Library
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