Comparative susceptibility among three stocks of yellow perch, Perca flavescens (Mitchill), to viral haemorrhagic septicaemia virus strain IVb from the Great Lakes

2013 ◽  
Vol 36 (8) ◽  
pp. 711-719 ◽  
Author(s):  
W Olson ◽  
E Emmenegger ◽  
J Glenn ◽  
J Winton ◽  
F Goetz
Keyword(s):  
Great Lakes ◽  
Virus Strain ◽  
Yellow Perch ◽  
Perca Flavescens ◽  
Haemorrhagic Septicaemia ◽  
Viral Haemorrhagic Septicaemia Virus ◽  
Comparative Susceptibility

Recruitment synchrony of yellow perch (Perca flavescens, Percidae) in the Great Lakes region, 1966–2008

2016 ◽  
Vol 181 ◽  
pp. 214-221 ◽  
Author(s):  
Andrew E. Honsey ◽  
David B. Bunnell ◽  
Cary D. Troy ◽  
David G. Fielder ◽  
Michael V. Thomas ◽  
...  
Keyword(s):  
Great Lakes ◽  
Yellow Perch ◽  
Perca Flavescens ◽  
Great Lakes Region

Potential distribution of the viral haemorrhagic septicaemia virus in the Great Lakes region

2016 ◽  
Vol 40 (1) ◽  
pp. 11-28 ◽  
Author(s):  
L E Escobar ◽  
G Kurath ◽  
J Escobar-Dodero ◽  
M E Craft ◽  
N B D Phelps
Keyword(s):  
Great Lakes ◽  
Potential Distribution ◽  
Great Lakes Region ◽  
Haemorrhagic Septicaemia ◽  
Viral Haemorrhagic Septicaemia Virus

Sex-based trade-offs among growth, mortality, and maturation in Great Lakes yellow perch stocks

2017 ◽  
Vol 74 (12) ◽  
pp. 2059-2072 ◽  
Author(s):  
Zachary S. Feiner ◽  
Stephen C. Chong ◽  
David G. Fielder ◽  
James A. Hoyle ◽  
Carey Knight ◽  
...  
Keyword(s):  
Life History ◽  
Great Lakes ◽  
Yellow Perch ◽  
Life History Theory ◽  
Perca Flavescens ◽  
Reaction Norm ◽  
Male And Female ◽  
Trade Offs ◽  
Males And Females ◽  
Positive Correlations

Trade-offs among growth, mortality, and reproduction form the basis of life history theory but may vary among populations owing to local ecological conditions. We examined life history trade-offs driving variation in maturation among 13 yellow perch (Perca flavescens) stocks in the Great Lakes using sex-specific age and length at 50% maturity (A50 and L50, respectively) and probabilistic maturation reaction norm midpoints (Lp50,a). Both sexes exhibited positive correlations between growth and mortality, and faster-growing stocks were mature at younger ages but larger sizes. Male and female A50 and L50 were positively correlated among stocks, but Lp50,a estimates were negatively correlated among stocks, indicating stocks that matured at large sizes for a given age in females matured at smaller age-specific sizes in males. Female Lp50,a estimates were negatively related to growth and mortality, while male Lp50,a estimates were positively related to growth. These results suggest that (i) sex-based life history trade-offs sometimes act to differentially structure maturation schedules in males and females and (ii) males may be less responsive to changes in mortality than females.

Movement of Yellow Perch (Perca flavescens) and White Sucker (Catostomus commersoni) in a Nearshore Great Lakes Habitat Subject to a Thermal Discharge

1976 ◽  
Vol 33 (1) ◽  
pp. 42-53 ◽  
Author(s):  
J. R. M. Kelso
Keyword(s):  
Great Lakes ◽  
Yellow Perch ◽  
Elevated Temperatures ◽  
Perca Flavescens ◽  
Cooling Water ◽  
White Sucker ◽  
Thermal Discharge ◽  
Catostomus Commersoni ◽  
Discharge Area ◽  
Discharge Site

The thermal discharge from the Nanticoke Generating Station caused both yellow perch (Perca flavescens) and white sucker (Catostomus commersoni) to increase sharpness of turns, decrease distance between turns, and to orient into the current generated by the discharge. Conversely, fish released in thermally unaffected habitats referenced movement to the shoreline, turned less sharply, and swam greater distances between turns. The tendency for localization of movement was increased for both species when in the influence of the discharge. Swimming speeds were less for fish encountering the discharge; however, these fish had to contend with currents generated by the effluent thus making comparisons anomalous. Exposure of fish to elevated temperatures was brief and ranged from a few excursions into thermally elevated areas to approximately 9 h. Fish transplanted from unaffected areas to the discharge area showed behavior similar to fish caught and released at the discharge site. Two fish tracked when cooling water was discharged at ambient temperature suggested that current had a role in causing the observed changes in behavior.

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