Sea lamprey (Petromyzon marinus L.) spawning migration in the Vouga river basin (Portugal): poaching impact, preferential resting sites and spawning grounds

2007 ◽  
pp. 121-132 ◽  
Author(s):  
N. O. Andrade ◽  
B. R. Quintella ◽  
J. Ferreira ◽  
S. Pinela ◽  
I. Póvoa ◽  
...  
Keyword(s):  
River Basin ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Spawning Migration ◽  
Spawning Grounds ◽  
Resting Sites

Sea lamprey (Petromyzon marinus L.) spawning migration in the Vouga river basin (Portugal): poaching impact, preferential resting sites and spawning grounds

Hydrobiologia ◽  
2007 ◽  
Vol 582 (1) ◽  
pp. 121-132 ◽  
Author(s):  
N. O. Andrade ◽  
B. R. Quintella ◽  
J. Ferreira ◽  
S. Pinela ◽  
I. Póvoa ◽  
...  
Keyword(s):  
River Basin ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Spawning Migration ◽  
Spawning Grounds ◽  
Resting Sites

Epidermal pigmentation in the sea lamprey Petromyzon marinus L.

1973 ◽  
Vol 51 (1) ◽  
pp. 101-104 ◽  
Author(s):  
Edward Kott
Keyword(s):  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Spawning Migration ◽  
Breakdown Product ◽  
Bile Pigment ◽  
Mucus Layer ◽  
Color Development

During the spawning migration, the overall color of the sea lamprey (Petromyzon marinus L.) becomes progressively more orange. This color development is not due to the chromatophores of the dermis, since the pigment involved is present in either the epidermis and (or) the outer mucus layer. The color, instead, is resultant upon an increase in the concentration of bilirubin, a bile pigment produced as a breakdown product of hemoglobin.

Metabolic organization of liver and somatic muscle of landlocked sea lamprey,Petromyzon marinus, during the spawning migration

1995 ◽  
Vol 73 (5) ◽  
pp. 916-923 ◽  
Author(s):  
P. J. LeBlanc ◽  
T. E. Gillis ◽  
M. F. Gerrits ◽  
J. S. Ballantyne
Keyword(s):  
Amino Acids ◽  
Ketone Bodies ◽  
Petromyzon Marinus ◽  
Plasma Concentrations ◽  
High Capacity ◽  
Sea Lamprey ◽  
Spawning Migration ◽  
Somatic Muscle ◽  
Nonesterified Fatty Acids ◽  
Metabolic Organization

The metabolic organization of liver and muscle of the landlocked sea lamprey, Petromyzon marinus, during the spring spawning migration was assessed by measuring activities of key enzymes for several metabolic pathways, the oxidative properties of mitochondria, and plasma concentrations of nonesterified fatty acids (NEFAs) and free amino acids. These determinations indicate that several metabolic sources are used to fuel the energy requirements of muscle. Lamprey muscle has a high capacity to oxidize lipids but the plasma NEFAs are lower than those reported for other species. Of the NEFAs measured in plasma, 18:0 was prominent, accounting for 23% of the total NEFA content of the plasma. High plasma concentrations of ketogenic amino acids and high levels of tissue ketogenic/ketolytic enzyme activities indicate that ketone bodies may also be a major fuel source for migrating sea lampreys. Based on mitochondrial oxidation and enzyme measurements, glutamine catabolism in somatic muscle of lampreys is less important than in other fish red muscle.

Occurrence of Sea Lamprey, Petromyzon marinus, in a Newfoundland River, with Additional Records from the Northwest Atlantic

1993 ◽  
Vol 50 (6) ◽  
pp. 1265-1269 ◽  
Author(s):  
J. B. Dempson ◽  
T. R. Porter
Keyword(s):  
Frequency Distribution ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Length Frequency Distribution ◽  
Length Frequency ◽  
Marine Waters ◽  
Age Classes ◽  
Spawning Grounds ◽  
Northwest Atlantic ◽  
Spawning Area

Information on adult and larval sea lamprey, Petromyzon marinus, from Terra Nova River, Newfoundland, provides the first documented occurrence of a spawning population of lamprey from this province. Sea lamprey captured on the spawning grounds in mid-July 1989 ranged in length from 530 to 687 mm. Larvae collected in 1989 and 1990 ranged in length from 22 to 176 mm, and specimens were found distributed as far as 5 km below the only known spawning area. Length of larval specimens displaying signs of metamorphosis ranged from 135 to 170 mm. The length frequency distribution of sea lamprey larvae collected in 1990 is suggestive of multiple age classes. Information on the marine distribution of sea lamprey is provided from 24 records of captures in marine waters adjacent to Newfoundland.

scholarly journals Demography of sea lamprey (Petromyzon marinus) ammocoete populations in relation to potential spawning-migration obstructions

2017 ◽  
Vol 27 (4) ◽  
pp. 764-772 ◽  
Author(s):  
A. D. Nunn ◽  
R. J. Taylor ◽  
I. G. Cowx ◽  
R. A. A. Noble ◽  
J. D. Bolland ◽  
...  
Keyword(s):  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Spawning Migration

Changes in Spawning Runs of Sea Lamprey (Petromyzon marinus) in Selected Streams of Lake Superior after Chemical Control

1980 ◽  
Vol 37 (11) ◽  
pp. 1851-1860 ◽  
Author(s):  
H. H. Moore ◽  
L. P. Schleen
Keyword(s):  
Great Lakes ◽  
Chemical Treatment ◽  
Chemical Control ◽  
Lake Superior ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Spawning Migration ◽  
Habitat Alteration ◽  
Sea Lampreys ◽  
Spawning Run

During lampricide treatment of a stream, sea lamprey, Petromyzon marinus, that will constitute the spawning run the following spring inhabit the Great Lakes and are not affected by the treatment. However, the number of adults captured at electrical barriers declined as much as 99% in some streams 1 year after chemical treatment. Large declines of adults were noted in streams which were treated late in the year. Streams in which significant populations of larval lampreys survived the chemical treatment, or contained lentic populations, continued to attract adults. Adult sea lampreys could be attracted to sea lamprey ammocoetes in streams or in offshore areas and hence use this as one of a number of clues to determine rivers suitable for spawning.Key words: sea lamprey, olfaction, orientation/homing, spawning migration, habitat alteration (chemical), Petromyzon marinus, lampricides

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