Upstream migration of the anadromous sea lamprey ( Petromyzon marinus Linnaeus, 1758) in a highly impounded river: Impact of low‐head obstacles and fisheries

2019 ◽  
Vol 29 (3) ◽  
pp. 389-396 ◽  
Author(s):  
Sergio Silva ◽  
Sandra Barca ◽  
Rufino Vieira‐Lanero ◽  
Fernando Cobo
Keyword(s):  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Upstream Migration ◽  
Low Head

scholarly journals [First occurrence of Sea Lamprey, Petromyzon marinus Linnaeus 1758 (Agnatha, Petromyzontiformes, Petromyzontidae) in the River Mignone (Northern Lazio).]

2021 ◽  
Vol 8 (1) ◽  
pp. 29-34
Author(s):  
Vincenzo Ferri ◽  
Paolo Crescia ◽  
Christiana Soccini ◽  
Alessio Olini ◽  
Stefano Celletti
Keyword(s):  
Endangered Species ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Environmental Context ◽  
Upstream Migration ◽  
Rare And Endangered Species ◽  
Fish Ladder ◽  
First Occurrence ◽  
Rare And Endangered

[The spring presence of two individuals of the Sea lamprey, Petromyzon marinus, in the River Mignone near Tarquinia (Northern Lazio) could highlight a new Italian reproductive site of this rare and endangered species. This exceptional possibility could certainly be favored by the good quality of both the waters of the Mignone, and the environmental context of the record, but would require the urgent equipment of the barrier of Le Mole with a fish ladder in order to allow the sea lamprey’s upstream migration towards the areas of the upper course, even more suitable for their reproduction].   [Article in Italian]

scholarly journals Upstream migration, reproduction and fishery of sea lamprey (Petromyzon marinus Linnaeus, 1758) in the River Ulla (NW Spain)

2015 ◽  
Vol 2 ◽  
Author(s):  
Silva Sergio ◽  
Barca Sandra ◽  
Vieira-Lanero Rufino ◽  
Servia María ◽  
Lago Lorena ◽  
...  
Keyword(s):  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Upstream Migration ◽  
Nw Spain

Classification of Sea Lamprey (Petromyzon marinus) Attack Marks on Great Lakes Lake Trout (Salvelinus namaycush)

1980 ◽  
Vol 37 (11) ◽  
pp. 1989-2006 ◽  
Author(s):  
Everett Louis King Jr.
Keyword(s):  
Great Lakes ◽  
Lake Trout ◽  
Petromyzon Marinus ◽  
Attachment Site ◽  
Sea Lamprey ◽  
Salvelinus Namaycush ◽  
Oral Disc ◽  
Field Assessment ◽  
Sea Lampreys

Criteria for the classification of marks inflicted by sea lamprey (Petromyzon marinus) into nine categories were developed from laboratory studies in an attempt to refine the classification system used in field assessment work. These criteria were based on characteristics of the attachment site that could be identified under field conditions by unaided visual means and by touching the attachment site. Healing of these marks was somewhat variable and was influenced by the size of lamprey, duration of attachment, severity of the wound at lamprey detachment, season and water temperature, and by other less obvious factors. Even under laboratory conditions staging of some wounds was difficult, especially at low water temperatures. If these criteria are to be used effectively and with precision in the field, close examination of individual fish may be required. If the feeding and density of specific year-classes of sea lampreys are to be accurately assessed on an annual basis, close attention to the wound size (as it reflects the size of the lamprey's oral disc) and character of wounds on fish will be required as well as consideration of the season of the year in which they are observed.Key words: sea lamprey, attack marks, lake trout, Great Lakes

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