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Conservation status of imperiled north American freshwater and diadromous fishes

This list includes 700 extant taxa representing 133 genera and 36 families, a 92% increase over the 364 listed in 1989, and reflects the addition of distinct populations, previously non-imperiled fishes, and recently described or discovered taxa.
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Lampreys of the world unite. An annotated and illustrated catalogue of lamprey species known to date.

Conservation status of Northern Hemisphere lampreys (Petromyzontidae)

Among the 34 nominal lamprey species in the Northern Hemisphere, ten are endangered; nine are vulnerable at least in part of their range, and one is extinct. The major cause is habitat degradation…
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The taxonomy, phylogeny and distribution of lampreys

The phylogenetic relationships of the lampreys were similar in most respects to those obtained by subjecting molecular data for those species to Bayesian analyses, however, in contrast to the results of morphological analyses, the genera Eudontomyzon and Lampetra were not monophyletic when using molecular analyses.
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Novel Relationships among Lampreys (Petromyzontiformes) Revealed by a Taxonomically Comprehensive Molecular Data Set

Monophyly was supported for the multi-specific genera Entosphenus, Eudontomyzon, Ichthyomyzon), Lampetra, and Lethenteron, and the family Mordaciidae was resolved as two divergent lineages at the base of the tree.

Phylogeny of Living Parasitic Lampreys (Petromyzontiformes) Based on Morphological Data

Relationships among the 18 extant species of parasitic lamprey (Petromyzontiformes) were determined using a cladistic analysis of 32 mainly morphological characters, revealing a trichotomy between a monophyletic northern hemisphere clade and the southern hemisphere genera Geotria and Mordacia.
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Relationships between the diets and characteristics of the dentition, buccal glands and velar tentacles of the adults of the parasitic species of lamprey

On the basis of recent cladistic analysis, blood feeding is ancestral to flesh feeding in Northern Hemisphere lampreys (Petromyzontidae).
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Taxonomy, Distribution, and Conservation of Lampreys in Canada

Despite much lamprey work being conducted in the past decade, there still remain a number of knowledge gaps, including unequivocal evidence as to whether parasitic and nonparasitic members of a paired species should be considered distinct species and information on the distribution and population sizes and trends of the native lamprey species.

Decline and regional extirpation of freshwater mussels (Unionidae) in a small river system invaded by Dreissena polymorpha: the Rideau River, 1993-2000

This study indicates that heavy fouling by D. polymorpha causes the extirpation of unionids in small river systems during an 8-year period in eastern Ontario.
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Conservation of Native Lampreys

Forty-four species of lampreys (Petromyzontidae) are currently recognized: (a) nine species are anadromous and parasitic (i.e., feeding on actinopterygian fishes after metamorphosis); (b) nine…
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