Behavioral variation in pelvic phenotypes of brook stickleback,Culaea inconstans, in response to predation by northern pike,Esox lucius

1983 ◽  
Vol 8 (3-4) ◽  
pp. 255-267 ◽  
Author(s):  
James D. Reist
Keyword(s):  
Northern Pike ◽  
Esox Lucius ◽  
Behavioral Variation ◽  
Culaea Inconstans ◽  
Pike Esox Lucius ◽  
Brook Stickleback

scholarly journals Charactéristiques d'une population introduit du Grand brochet, Esox lucius, dans le lac Ramsay, Parc de la Gatineau, Québec, et impact sur l'ichtyofaune

2005 ◽  
Vol 119 (3) ◽  
pp. 359 ◽  
Author(s):  
Josiane Vachon ◽  
Brigitte F. Lavallée ◽  
François Chapleau
Keyword(s):  
Special Form ◽  
Gasterosteus Aculeatus ◽  
Northern Pike ◽  
Esox Lucius ◽  
Threespine Stickleback ◽  
Culaea Inconstans ◽  
Small Lake ◽  
Piscivorous Fish ◽  
Pike Esox Lucius ◽  
First Time

En 1995, la présence du Grand brochet (Esox lucius), une espèce piscivore, a été notée pour la première fois dans le lac Ramsay, Parc de la Gatineau (Québec). Il a été déterminé que l’espèce a été introduite après l’été 1991. Un échantillonnage exhaustif de l’ichtyofaune du lac en 2001 et 2002 a permis de constater que trois des 17 petites espèces de poissons du lac sont probablement disparues: le Mulet perlé (Margariscus margarita), l’Épinoche à cinq épines (Culaea inconstans) et une forme rare de l’Épinoche à trois épines (Gasterosteus aculeatus). Il est prédit que plusieurs autres espèces pourraient disparaître au cours des prochaines années. La croissance du Grand brochet dans le lac Ramsay est comparable aux autres lacs du sud du Québec. En 2001, le rapport femelles:mâles était de 15 : 1, une valeur anormale et inexpliquée.In 1995, the Northern Pike (Esox lucius), a piscivorous fish, was captured for the first time in Ramsay Lake, a small lake of the Gatineau Park (Québec). It was determined that this species was introduced after the summer of 1991. An exhaustive survey of the ichthyofauna of this lake in 2001 and 2002 indicated that three of the 17 small-bodied species of the lake have probably disappeared: the Pearl Dace (Margariscus margarita), the Fivespine Stickleback (Culaea inconstans) and a special form of the Threespine Stickleback (Gasterosteus aculeatus). It is predicted that several other species may be extirpated in the next few years. Northern Pike growth in the lake is comparable to other values obtained for other southern Québec lakes. In 2001, the female:male ratio was highly unbalanced and difficult to explain at 15 : 1. Erratum added.

Selective predation upon pelvic phenotypes of brook stickleback, Culaea inconstans, by northern pike, Esox lucius

1980 ◽  
Vol 58 (7) ◽  
pp. 1245-1252 ◽  
Author(s):  
James D. Reist
Keyword(s):  
Relative Size ◽  
Morphological Difference ◽  
Field Work ◽  
Selective Advantage ◽  
Northern Pike ◽  
Esox Lucius ◽  
Selective Predation ◽  
Culaea Inconstans ◽  
Brook Stickleback ◽  
Selection Of

Laboratory and field work assessed the importance of Esox lucius predation in maintaining pelvic skeletal phenotypes in a population of Culaea inconstans. Individuals possessing a pelvis and pelvic spines (with) have a selective advantage over those lacking these parts (without). The latter are preferentially preyed upon in the lab by small northern pike due to this morphological difference. The advantage conferred by the spines depends upon relative size of predator to prey and likely has no effect upon predation by larger pike. Preferential selection of with individuals whose pelvic spines were removed, rather than without individuals (i.e. morphologically similar prey), suggests withouts compensate behaviourally for their morphological disadvantage. Analysis of food of large wild pike indicated that these postulated behavioural differences contributed to selective predation of individuals of the with phenotype in Wakomao Lake, Alberta, Canada. The frequency of these phenotypes in any situation represents a balance between counterselective forces, some of which are due to predation. Additional predatory species present in the lake and additional uses of pelvic spines probably also influence the phenotypic frequencies.

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

Temporal change estimation of mercury concentrations in northern pike (Esox lucius L.) in Swedish lakes

Chemosphere ◽  
2012 ◽  
Vol 86 (5) ◽  
pp. 439-445 ◽  
Author(s):  
Staffan Åkerblom ◽  
Mats Nilsson ◽  
Jun Yu ◽  
Bo Ranneby ◽  
Kjell Johansson
Keyword(s):  
Temporal Change ◽  
Northern Pike ◽  
Esox Lucius ◽  
Pike Esox Lucius

Effects of Liming on the Distribution of Cadmium in Water, Sediment, and Organisms in a Swedish Lake

1988 ◽  
Vol 45 (7) ◽  
pp. 1154-1162 ◽  
Author(s):  
Paul Andersson ◽  
Hans Borg
Keyword(s):  
Lake Water ◽  
Cadmium Concentration ◽  
Northern Pike ◽  
Esox Lucius ◽  
Suspended Particles ◽  
Fish Liver ◽  
Free Swimming ◽  
Pike Esox Lucius ◽  
Insect Larva ◽  
Before And After

We studied the cadmium concentrations in water, sediment, suspended particles, a free-swimming insect larva (Chaoborus), a sediment-bound insect larva (Chironomus), and liver of northern pike (Esox lucius) before and after liming operations in Lake Långsjön, Sweden. In accordance with the higher pH levels obtained in the lake water after the limings, cadmium concentration decreased in the water but increased in the sediment. Cadmium concentration in fish liver and Chironomus decreased after the limings whereas the concentration in Chaoborus larvae increased after the first liming. Possible mechanisms are discussed.

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