Charactéristiques d'une population introduit du Grand brochet, &lt;em&gt;Esox lucius&lt;/em&gt;, dans le lac Ramsay, Parc de la Gatineau, Québec, et impact sur l'ichtyofaune

Vachon, Josiane; Lavallée, Brigitte F.; Chapleau, François

doi:10.22621/cfn.v119i3.146

Can Field Nat

2005

DOI: 10.22621/cfn.v119i3.146

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

Josiane Vachon

Brigitte F. Lavallée

François Chapleau

Abstract: 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 … Show more

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Cited by 3 publications

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Intraspecific diversity of threespine stickleback (Gasterosteus aculeatus) populations in eastern Canada

Haines

2022

Environ Biol Fish

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The threespine stickleback (Gasterosteus aculeatus) is a small, mesopredatory fish that is widespread in coastal regions of the northern hemisphere. Although this species does not directly support a commercial or recreational fishery, threespine stickleback often serve as important prey for larger fish that do support important fisheries, as well as many bird species. Although studied extensively as a model organism in evolutionary biology, behavioral ecology, genomics, and numerous related subfields, this research relies heavily on populations from the Pacific coastal regions of North America and Asia, and those of northern Europe. However, based on the morphology of some western Atlantic populations, the different ecological context, and the evolutionary history of the species, not all of the knowledge gained from Pacific and European lineages is likely to be fully transferrable to the populations of North America's East Coast. Nevertheless, work in eastern Canada does suggest high levels of intraspecific phenotypic diversity and local adaptation, though much of this diversity may be under threat from changing climate, altered land use patterns, and introduced species. These factors warrant a research program focused on broad sampling of previously identified populations, identifying previously undocumented populations, determining whether there are unique genetic mechanisms underlying the unusual trait combinations present in the region, and exploring novel community interactions. Such a research program would facilitate the documentation of phenotypic change and establish baselines for future work. Because the work on nearshore marine threespine stickleback populations is sparse in the western Atlantic, I focus here on freshwater populations-with the exception of a brief discussion of the "white" stickleback populations of Nova Scotia-but this is not to suggest that nearshore marine populations are not phenotypically diverse.

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Intraspecific diversity of threespine stickleback (Gasterosteus aculeatus) populations in eastern Canada

Haines

2022

Environ Biol Fish

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Gatineau Park: public participation and changing park purposes in the wildland–urban interface

Heintzman

2010

Leisure/Loisir

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Gatineau Park is a classic example of a park confronted by management issues related to the wildland-urban interface. This study examined the planning process for the master plan to explore the issues of public participation and changing park purposes as they relate to recreation in the wildland-urban interface. Although the plan acknowledges that Gatineau Park, unlike most large natural parks, protrudes into a large urban area, the planning process did not involve a systematic survey of the views of current and potential park visitors as well as the diverse population in the region as is suggested by literature on the wildland-urban interface. The plan, by stating that the park will be "managed primarily for conservation then for recreational use" (National Capital Commission, 2005, Gatineau Park Master Plan. Ottawa, ON: Author, p. 19), created a dichotomy that does not reflect an increasing recognition of the complementary nature of park visitation and the maintenance of ecological integrity.Keywords: master plan; park purposes; park visitors; public participation; wildlandurban interface Le parc de la Gatineau est un exemple classique d'un parc périurbain. Cette étude examine le processus de planification du plan directeur et vise à explorer les questions de la participation publiques et les changements des loisirs dans les zones périurbaines du parc. Bien que le plan directeur reconnaît que le parc de la Gatineau, contrairement à la plupart de parcs grands naturels, est localisé près d'une grande région urbaine, le processus de planification na pas inclus d'étude systématique du point de vue des visiteurs (actuels ou potentiels), et na pas reconnue la diversité de la population dans la région. En indiquant que le parc sera "géré principalement pour la conservation, puis pour usage récréatif » (National Capital Commision, 2005, Gatineau Park Master Plan. Ottawa, ON: Author, p. 19), le plan a créé une dichotomie qui ne reflète pas une reconnaissance croissante de la nature complémentaire des visiteurs du parc et le maintien de l'intégrité écologique.

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Long-term assessment of the effect of introduced predatory fish on minnow diversity in a regional protected area

AikenJames

Scott

ChapleauFrançois

2012

Can. J. Fish. Aquat. Sci.

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Introduced piscivorous fishes had a dramatic impact on small-bodied fish species diversity of small temperate lakes in Gatineau Park, Quebec, Canada, on the basis of three surveys carried out over a 38-year period from 1970 to 2007. For three overlapping sets of lakes based on different combinations of survey years (lakes surveyed in 1970–1971, 1991–1992, and 2006–2007 (N = 14); lakes surveyed in 1970–1971 and 2006–2007 (N = 21); and lakes surveyed in 1991–1992 and 2006–2007 (N = 16)), those with introduced piscivores showed substantial and consistent temporal declines in average minnow species richness but much weaker, if any, declines in total species richness. By contrast, lakes without introduced piscivores showed no such decline. Whereas lakes without piscivores showed a strong species–elevation relationship early in the record, the strength of this relationship was much lower in lakes with introduced piscivores. Moreover, the strength of the species–elevation relationship declined precipitously over time in lakes with introduced piscivores, but remained stable in lakes where introduced piscivores were absent. The negative impact of piscivore introductions on small-bodied fish biodiversity in small lakes underscores the importance of action to mitigate the risk of future introductions or invasions.

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

Cited by 3 publications

References 17 publications

Intraspecific diversity of threespine stickleback (Gasterosteus aculeatus) populations in eastern Canada

Intraspecific diversity of threespine stickleback (Gasterosteus aculeatus) populations in eastern Canada

Gatineau Park: public participation and changing park purposes in the wildland–urban interface

Long-term assessment of the effect of introduced predatory fish on minnow diversity in a regional protected area

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