Phylogeography of the European brook lamprey ( Lampetra planeri ) and the European river lamprey ( Lampetra fluviatilis ) species pair based on mitochondrial data

2020 ◽  
Vol 96 (4) ◽  
pp. 905-912
Author(s):  
Binia De Cahsan ◽  
Rebecca Nagel ◽  
Ina‐Maria Schedina ◽  
James J. King ◽  
Pier G. Bianco ◽  
...  
Keyword(s):  
Species Pair ◽  
Lampetra Fluviatilis ◽  
Brook Lamprey ◽  
River Lamprey ◽  
Mitochondrial Data ◽  
Lampetra Planeri

Redescription of Lampetra ayresii (Günther) of Western North America, a Species of Lamprey (Petromyzontidae) Distinct from Lampetra fluviatilis (Linnaeus) of Europe

1958 ◽  
Vol 15 (1) ◽  
pp. 47-77 ◽  
Author(s):  
Vadim D. Vladykov ◽  
W. I. Follett
Keyword(s):  
North America ◽  
San Francisco ◽  
Western North America ◽  
Lampetra Fluviatilis ◽  
Caudal Fin ◽  
Dark Pigment ◽  
River Lamprey ◽  
Lampetra Planeri ◽  
Skeena River ◽  
First Time

Lampetra ayresii (Günther), a species of parasitic river lamprey endemic to western North America, is redescribed on the basis of material from off the Skeena River, British Columbia, to San Francisco Bay, California. A neotype is designated. Transformed specimens differ from those of the European Lampetra fluviatilis (Linnaeus) in having a larger eye, a longer prebranchial and a shorter branchial region, and possibly a lower second dorsal fin, an acute rather than an obtuse caudal fin, a higher average number of trunk myomeres, and an area of dark pigment on the caudal fin. Ammocoetes differ from those of Lampetra fluviatilis principally in having a higher number of myomeres, a dark caudal spot (which distinguishes them also from ammocoetes of Lampetra planeri (Bloch), the nonparasitic brook lamprey), and an absence of dark pigment on most parts of the head and on the precursor of the tongue. Specimens from Oregon are recorded for the first time. Specimens from Mill Creek, Tehama County, California, show that this species ascends the Sacramento River farther than previous records indicated. An annotated synonymy is included. Lampetra ayresii is indicated as distinct from Ammocoetes cibarius Girard, which is regarded as identical with Entosphenus tridentatus (Richardson). Lampetra ayresii and Lampetra fluviatilis are illustrated by a number of original drawings and photographs.

A mitochondrial multigene approach contributing to the systematics of the brook and river lampreys and the phylogenetic position of Eudontomyzon mariae

2008 ◽  
Vol 65 (12) ◽  
pp. 2780-2790 ◽  
Author(s):  
Miriam Blank ◽  
Karl Jürss ◽  
Ralf Bastrop
Keyword(s):  
Mitochondrial Gene ◽  
Phylogenetic Position ◽  
Species Pair ◽  
Base Pairs ◽  
Data Set ◽  
European Species ◽  
Brook Lamprey ◽  
Noncoding Regions ◽  
Monophyletic Cluster ◽  
Lampetra Planeri

The evolution of nonparasitic brook lamprey forms and their relationship to the morphological similar parasitic river lampreys are long-standing questions in lamprey research. The present study examines the utility of 11 mitochondrial gene segments (a total of 3800 base pairs) to discriminate the closely related members of the European species pair Lampetra fluviatilis and Lampetra planeri . The intent was to identify fast-evolving genes in the mtDNA that might allow a discrimination of pair members. Therefore, the noncoding regions as the fastest evolving gene segments of animal mtDNA were also included. The results revealed that in all investigated loci, L. fluviatilis and L. planeri were genetically indistinguishable, indicating either a very recent divergence event or ongoing gene flow between both species. The position of the Ukrainian brook lamprey, Eudontomyzon mariae , and the phylogentic relationships within the Lampetrini was inferred from partial cytochrome b by adding available sequences from GenBank to the data set. Eudontomyzon mariae formed a monophyletic cluster with Lampetra aegyptera and the European species pair. A reintegration of E. mariae in the genus Lampetra is therefore recommended.

Thermoadaptation Characteristics of European River Lamprey Lampetra fluviatilis Smolts

2019 ◽  
Vol 59 (5) ◽  
pp. 805-809 ◽  
Author(s):  
V. K. Golovanov ◽  
N. S. Nekrutov ◽  
A. O. Zvezdin ◽  
A. K. Smirnov ◽  
I. A. Tsimbalov
Keyword(s):  
Lampetra Fluviatilis ◽  
River Lamprey
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