Interannual variation in spawning success of striped bass (Morone saxatilis) in the Saint John River, New Brunswick

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dc.contributor.authorAndrews, Samuel N.
dc.contributor.authorLinnansaari, Tommi
dc.contributor.authorLeblanc, Nathalie
dc.contributor.authorPavey, Scott A.
dc.contributor.authorCurry, R. Allen
dc.date.accessioned2023-05-26T17:09:36Z
dc.date.available2023-05-26T17:09:36Z
dc.date.issued2019-11-08
dc.description.abstractBarriers such as dams have been cited as a serious threat to striped bass survival, especially when they affect or impede migration and access to spawning grounds. On the Saint John River, New Brunswick, the installation of the large Mactaquac Dam in the immediate vicinity of a historic striped bass spawning location was suspected to have caused the arrest of striped bass reproduction and the collapse of the native striped bass population. In 2014, juvenile striped bass of confirmed Saint John River origin were documented in the river for the first time since 1979. In the current study, we examined juveniles from 6 years of sampling to determine corresponding years of successful recruitment. We also tracked adult striped bass matching the ancestry of native Saint John River juveniles to determine the timing and location of spawning. Over 5 years, we observed an annual upstream migration by adult striped bass to historic spawning areas near Fredericton, identified a dominant year class of Saint John River origin juveniles reproduced in 2013, and linked the apparent successful production of year classes to definable discharge conditions, that is, extended periods of sustained flow >36 hr downstream from the Mactaquac Dam. The results of this study suggest important first management actions towards recovering and sustaining the re-discovered striped bass population in the Saint John River, New Brunswick.
dc.description.copyrightThis is the pre-peer reviewed version of the following article: [Andrews, SN, Linnansaari, T, Leblanc, N, Pavey, SA, Curry, RA. Interannual variation in spawning success of striped bass (Morone saxatilis) in the Saint John River, New Brunswick. River Res Applic. 2020; 36: 13– 24.], which has been published in final form at [https://doi.org/10.1002/rra.3545]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
dc.identifier.issn1535-1459
dc.identifier.issn1535-1467
dc.identifier.urihttps://unbscholar.lib.unb.ca/handle/1882/22601
dc.language.isoen
dc.publisherWiley
dc.relationNSERC
dc.relation.hasversionhttps://doi.org/10.1002/rra.3545
dc.rightshttp://purl.org/coar/access_right/c_abf2
dc.subject.disciplineBiology
dc.titleInterannual variation in spawning success of striped bass (Morone saxatilis) in the Saint John River, New Brunswick
dc.typejournal article
oaire.citation.endPage24
oaire.citation.issue1
oaire.citation.startPage13
oaire.citation.titleRiver Research and Applications
oaire.citation.volume36
oaire.license.conditionother
oaire.versionhttp://purl.org/coar/version/c_ab4af688f83e57aa

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