A PRELIMINARY ASSESSMENT OF THE DISTRIBUTION OF THE SEA LAMPREY (PETROMYZON MARINUS L.), RIVER LAMPREY (LAMPETRA FLUVIATILIS (L.)) AND BROOK LAMPREY (LAMPETRA PLANERI (BLOCH)) IN NORTHERN IRELAND

2009 ◽  
Vol 109 (1) ◽  
pp. 47-52 ◽  
Author(s):  
C. E. Goodwin ◽  
J. T.A. Dick ◽  
R. W. Elwood
Keyword(s):  
Northern Ireland ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Preliminary Assessment ◽  
Lampetra Fluviatilis ◽  
Brook Lamprey ◽  
River Lamprey ◽  
Lampetra Planeri

Lampreys and Lamprey Fisheries in Finland

1980 ◽  
Vol 37 (11) ◽  
pp. 1953-1959 ◽  
Author(s):  
P. Tuunainen ◽  
E. Ikonen ◽  
H. Auvinen
Keyword(s):  
Environmental Changes ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Human Consumption ◽  
Fish Stocks ◽  
Brook Lamprey ◽  
Economic Significance ◽  
River Lamprey ◽  
Great Damage ◽  
Lamprey Species

There are three lamprey species in Finland. European river lamprey (Lampetra fluviatilis) is common along the coast of Finland and 28 rivers are known to support spawning populations while landlocked river lamprey populations exist in three watercourses. European brook lamprey (Lampetra planed) is common in freshwater all over the country, and sea lamprey (Petromyzon marinus) has been reported off the Finnish coast only 19 times since 1854. Food of the river lamprey and landlocked river lamprey includes valuable fish species such as herring, sprat, and vendace, but no effects on the fish stocks have been reported. River lamprey catch in Finnish coastal rivers make up about 2–2.5 million individuals (100 t) and lampreys are used only for human consumption. The fishing season begins in August and ends in February. Environmental changes in rivers (dams, pollution, etc.) have caused great damage to river lamprey populations. Successful attempts have been made to promote spawning by transporting lampreys over the dams. Landlocked river lamprey, brook lamprey, and sea lamprey are of no economic significance in Finland.Key words: sea lamprey, river lamprey, brook lamprey, distribution, Finland, life history, fisheries, management

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.

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