scholarly journals Spatial Ecology of Juvenile Muskellunge and Northern Pike in Upper St. Lawrence River Nursery Bays

2018 ◽  
Author(s):  
Sarah Walton
Keyword(s):  
Spatial Ecology ◽  
Northern Pike ◽  
St Lawrence River

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

Reproduction et dynamique de population de la barbotte brune Ictalurus nebulosus (Le Sueur) dans la frayère de la rivière aux Pins, fleuve Saint-Laurent, près de Montréal (Québec)

1982 ◽  
Vol 60 (1) ◽  
pp. 31-39
Author(s):  
Gilles Harvey ◽  
Rejean Fortin
Keyword(s):  
Population Dynamics ◽  
Population Density ◽  
Sexual Maturity ◽  
Total Mortality ◽  
Northern Pike ◽  
Spawning Activity ◽  
Brown Bullhead ◽  
Ictalurus Nebulosus ◽  
Dynamique De Population ◽  
St Lawrence River

Two trap nets set in Rivière aux Pins, near its confluence with the St. Lawrence River, permitted the capture and subsequent marking or tagging of adult brown bullhead for the study of their reproductive biology and population dynamics. Spawning activity is examined in relation to water temperature and water level which, in 1976 and 1977, was controlled by means of a log weir, in order to enhance northern pike reproductive success. The study of sex ratio, sexual maturity, gonadosomatic ratio, and fecundity served to characterize the Rivière aux Pins bullhead spawning population. The results of the captures, markings, taggings, and recaptures led to the evaluation of total mortality, several aspects of exploitation by sport fishing, movements, population density, biomass, production, and yield.

Fine scale habitat use by age-1 stocked muskellunge and wild northern pike in an upper St. Lawrence River bay

2014 ◽  
Vol 40 ◽  
pp. 148-153 ◽  
Author(s):  
John M. Farrell ◽  
Kevin L. Kapuscinski ◽  
H. Brian Underwood
Keyword(s):  
Habitat Use ◽  
Northern Pike ◽  
Fine Scale ◽  
St Lawrence River

Spatiotemporal ecology of juvenile Muskellunge ( Esox masquinongy ) and Northern Pike ( Esox lucius ) in upper St. Lawrence River nursery bays during their inaugural fall and winter

2019 ◽  
Vol 29 (2) ◽  
pp. 346-363
Author(s):  
Sarah E. Walton‐Rabideau ◽  
Elodie J. I. Lédée ◽  
John Paul Leblanc ◽  
Petra Szekeres ◽  
Jonathan D. Midwood ◽  
...  
Keyword(s):  
Northern Pike ◽  
Esox Lucius ◽  
Esox Masquinongy ◽  
Pike Esox Lucius ◽  
St Lawrence River

scholarly journals Trends in body condition of smallmouth bass and northern pike (1982–2013) following multiple ecological perturbations in the St. Lawrence River

2017 ◽  
Vol 74 (8) ◽  
pp. 1158-1172 ◽  
Author(s):  
Derek P. Crane ◽  
John M. Farrell
Keyword(s):  
Invasive Species ◽  
Environmental Change ◽  
Body Condition ◽  
Round Goby ◽  
Northern Pike ◽  
Smallmouth Bass ◽  
Neogobius Melanostomus ◽  
Dreissenid Mussels ◽  
Time Periods ◽  
St Lawrence River

Body condition indices can be used to investigate fish response to biological or environmental change. We used quantile regression to analyze a 32-year weight–length data set (1982–2013) for smallmouth bass (Micropterus dolomieu) and northern pike (Esox lucius) from the St. Lawrence River to examine changes in condition (weight-at-length) during three ecologically distinct time periods. Condition of both species varied among time periods, with smallmouth bass experiencing greater proportional changes than northern pike. Smallmouth bass weight-at-length was greatest during 2005–2013 and lowest during 1982–1992. Northern pike weight-at-length was greatest during 2005–2013 for quantiles ≥0.5, similar between the 1982–1992 and 2005–2013 time periods for lower quantiles, and lowest during 1993–2004. The most likely weight–length model for smallmouth bass included terms for length, presence of round goby (Neogobius melanostomus), presence of dreissenid mussels, and an interaction between length and dreissenid mussels (wi = 0.93). The most likely model for northern pike included terms for length, presence of round goby, presence of dreissenid mussels, water temperature, conspecific abundance, and sex (wi = 0.56). Invasive species and environmental change related to invasive species have altered the condition of smallmouth bass and northern pike in the St. Lawrence River.

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