Epizootiological Studies of Lymphomas in Northern Pike in Ireland

2015 ◽  
pp. 129-140 ◽  
Author(s):  
M. F. Mulcahy
Keyword(s):  
Northern Pike

Complete sequences of 4 viral hemorrhagic septicemia virus IVb isolates and their virulence in northern pike fry

2017 ◽  
Vol 126 (3) ◽  
pp. 211-227 ◽  
Author(s):  
RG Getchell ◽  
ER Cornwell ◽  
S Bogdanowicz ◽  
J Andrés ◽  
WN Batts ◽  
...  
Keyword(s):  
Northern Pike ◽  
Viral Hemorrhagic Septicemia Virus ◽  
Viral Hemorrhagic Septicemia ◽  
Complete Sequences

Occurrence of Various Off-Flavours in Fish in Finland from 1969 to 1981

1983 ◽  
Vol 15 (6-7) ◽  
pp. 47-58 ◽  
Author(s):  
T Kuusi ◽  
M Suihko
Keyword(s):  
Research Laboratory ◽  
Kraft Pulp ◽  
Pulp Mill ◽  
Northern Pike ◽  
Research Centre ◽  
Pulp Mill Effluent ◽  
Technical Research ◽  
Kraft Pulp Mill ◽  
Food Research ◽  
Numerical Scale

Off-flavours in fish were studied from 1969 to 1981 at the Food Research Laboratory of the Technical Research Centre of Finland using sensory methods. In all, 1982 samples of 18 species of Finnish fish, most of them suspected of being tainted, were studied. A trained taste panel scoring on a numerical scale of 0-10, where a score of 5 or less was unacceptable, was used. The off-flavours described were oil, kraft pulp mill effluent, sewage (musty), muddy, rancid, and others. Of all these samples, 34.9% were unacceptable. The most common off-flavour was kraft pulp mill effluent, present in 41.2 % of the unacceptable samples. In acceptable fish slight off-flavours were somet imes found. Of the muddy fish, only 35.2 % of the bream and 28.8 % of the northern pike were unacceptable. The panel was able to discriminate between the different off-flavours, but, in some cases, the boundaries were vague.

Are Alberta’s Northern Pike Populations at Risk from Walleye Recovery?

2021 ◽  
Author(s):  
Andrew J. Paul ◽  
Christopher L. Cahill ◽  
Laura MacPherson ◽  
Michael G. Sullivan ◽  
Myles R. Brown
Keyword(s):  
At Risk ◽  
Northern Pike ◽  
Populations At Risk

Catchments affect growth rate of Northern Pike, Esox lucius, in subarctic lakes

2021 ◽  
Vol 83 (3) ◽  
Author(s):  
Mehdi Moslemi-Aqdam ◽  
George Low ◽  
Mike Low ◽  
Brian A. Branfireun ◽  
Heidi K. Swanson
Keyword(s):  
Growth Rate ◽  
Northern Pike ◽  
Esox Lucius ◽  
Subarctic Lakes ◽  
Pike Esox Lucius

Modeling the effective spawning and nursery habitats of northern pike within a large spatiotemporally variable river landscape (St. Lawrence River, Canada)

2018 ◽  
Vol 64 (2) ◽  
pp. 803-819 ◽  
Author(s):  
Aline Foubert ◽  
Céline Le Pichon ◽  
Marc Mingelbier ◽  
John M. Farrell ◽  
Jean Morin ◽  
...  
Keyword(s):  
Northern Pike ◽  
River Landscape ◽  
Nursery Habitats ◽  
St Lawrence River

Differing Catchability among Lakes: Influences of Lake Basin Morphology and other Factors on Gill-Net Catchability of Northern Pike

2010 ◽  
Vol 139 (4) ◽  
pp. 1109-1120 ◽  
Author(s):  
Rodney B. Pierce ◽  
Cynthia M. Tomcko ◽  
Donald L. Pereira ◽  
David F. Staples
Keyword(s):  
Northern Pike ◽  
Lake Basin ◽  
Gill Net ◽  
Basin Morphology

Comparative urogenital morphology and external sex determination in muskellunge, Esox masquinongy Mitchill

1989 ◽  
Vol 67 (4) ◽  
pp. 1053-1060 ◽  
Author(s):  
Bernard Lebeau ◽  
Gérard Pageau
Keyword(s):  
Ventral Surface ◽  
Northern Pike ◽  
Structural Basis ◽  
Simple Method ◽  
Esox Masquinongy ◽  
Secondary Sexual Characteristics ◽  
Sexual Characteristics ◽  
Spawning Behaviour ◽  
Accurate Indicator ◽  
Secondary Sexual

Primary and secondary sexual characteristics in northern pike, Esox lucius Linneaus, and muskellunge, Esox masquinongy Mitchill, differ markedly. Differences in the internal urogenital anatomy include the structure of the genital ducts and the angle they form with the ventral surface. Externally, the genital and urinary ducts open directly to the environment in northern pike, whereas in muskellunge they open into a muscular papilla and then through a urogenital pore. Differences in sexual dimorphism between the two closely related esocids constitute a structural basis to explain the known differences in spawning behaviour and reproductive success. Differences in secondary sexual characteristics explain why the methods developed by Demchenko or Casselman to externally sex pike are inapplicable to muskellunge. To develop and test two external sexing techniques for muskellunge, specimens were collected from two regions in Canada from 1980 to 1987. Examination of reproductive products obtained from stripping provided an accurate indicator of sex and sexual maturity, but demonstrated serious limitations. A simple method to sex muskellunge by examination of the external urogenital morphology is described for juveniles and adults. Dissection of fish revealed that with the urogenital examination technique we sexed juveniles with a success rate of 92–98%, and adults with 100% accuracy.

Walleye and Northern Pike

Fisheries ◽  
1996 ◽  
Vol 21 (8) ◽  
pp. 6-13 ◽  
Author(s):  
Thomas E. McMahon ◽  
David H. Bennett
Keyword(s):  
Northern Pike
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