Assessing Atlantic salmon (Salmo salar) recovery across five Atlantic Canadian National Parks through juvenile abundance modelling

dc.contributor.advisorSamways, Kurt
dc.contributor.authorRobinson, John
dc.date.accessioned2025-02-05T15:18:01Z
dc.date.available2025-02-05T15:18:01Z
dc.date.issued2024-12
dc.description.abstractFor decades, Atlantic salmon in Eastern North America have precipitously declined. In response, Fundy National Park (FNP) and Cape Breton Highlands National Park (CBHNP) implemented smolt-to-adult supplementation strategies within marine and freshwater rearing environments, respectively, Kouchibouguac National Park (KNP) planted fertilized eggs, and Gros Morne (GMNP) and Terra Nova National Park (TNNP) used community-based restoration approaches. To assess juvenile salmon population abundance through decline and restoration implementation of these parks, a Bayesian hierarchical model was developed to standardize single-pass and multi-pass electrofishing methodology, and estimate an index of juvenile density, at site and annual scale, using an electrofishing dataset covering 536 sites, over 49 years, across 24 rivers. Single-pass sites lack the accuracy of multi-pass methods but are an efficient sampling approach from a full catchment perspective. Increasing population trends were shown in some rivers (FNP, KNP), while others exhibited continued declines (CBHNP, KNP, GMNP) or modelling challenges (CBHNP, TNNP).
dc.description.copyright© John Robinson, 2024
dc.format.extentxvi, 135
dc.format.mediumelectronic
dc.identifier.urihttps://unbscholar.lib.unb.ca/handle/1882/38246
dc.language.isoen
dc.publisherUniversity of New Brunswick
dc.rightshttp://purl.org/coar/access_right/c_abf2
dc.subject.disciplineBiology
dc.titleAssessing Atlantic salmon (Salmo salar) recovery across five Atlantic Canadian National Parks through juvenile abundance modelling
dc.typemaster thesis
oaire.license.conditionother
thesis.degree.disciplineBiology
thesis.degree.grantorUniversity of New Brunswick
thesis.degree.levelmasters
thesis.degree.nameM.Sc.

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