The influence of human population change and aquatic invasive species establishment on future recreational fishing activities to the Canadian portion of the Laurentian Great Lakes

We project how human population change (2018 to 2046) and aquatic invasive species (AIS) establishment events of bigheaded carps (Hypophthalmichthys spp.) and grass carp (Ctenopharyngodon idella) might combine to affect future Canadian recreational fishing activity for the Laurentian Great Lakes. Hu...

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Bibliographic Details
Published in:Canadian journal of fisheries and aquatic sciences 2021-03, Vol.78 (3), p.232-244
Main Authors: Hunt, Len M, Phaneuf, Daniel J, Abbott, Joshua K, Fenichel, Eli P, Rodgers, Jennifer A, Buckley, Jeffrey D, Drake, D. Andrew R, Johnson, Timothy B
Format: Article
Language:English
Subjects:
Aging
Angling
Aquatic populations
Artisanal fishing
Case studies
Climate change
Community fishing
Ctenopharyngodon idella
Demographic aspects
Distribution
Environmental aspects
Environmental factors
Environmental impact
Environmental management
Fishing
Freshwater
Freshwater lakes
Game fishes
Human populations
Hypophthalmichthys
Hypophthalmichthys molitrix
Hypophthalmichthys nobilis
Ice fishing
Indigenous Peoples' fishing
Influence
Introduced species
Invasive species
Lakes
Man-induced effects
Modelling
Motor boats
Nonnative species
Pole-line fishing
Population
Recreational waters
Resource management
Row boats
Rural development
Sport fishing
Sport fishing statistics
Urbanization
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Summary:We project how human population change (2018 to 2046) and aquatic invasive species (AIS) establishment events of bigheaded carps (Hypophthalmichthys spp.) and grass carp (Ctenopharyngodon idella) might combine to affect future Canadian recreational fishing activity for the Laurentian Great Lakes. Human population change is expected to affect the total number of fishing trips (increase of about 143 000 trips or 11.4%) more than any of the AIS establishment events (maximum decrease of about 44 000 trips or 3.5%). The projected 11.4% increase to the number of fishing trips from human population change, however, lags the 38% projected increase to Ontario, Canada’s population from 2018 to 2046. Increasing urbanization and an aging population, which are associated with reduced rates of fishing participation, were responsible for this difference. The combined effects of human population change and AIS establishment illustrate the importance of accounting for human population change as it reverses the conclusions and results in a projected net increase of between 92 000 and 125 000 in the number of fishing trips. The combined model also identifies potential growth areas for fishing such as shore fishing by urbanites on the western portion of Lake Ontario.
ISSN:0706-652X
1205-7533
DOI:10.1139/cjfas-2020-0159