Evaluation of Pacific Lamprey statoliths for age estimation across their life cycle

Pelekai, K. N.; Hess, J. E.; Weitkamp, L. A.; Lampman, R. T.; Miller, J. A.

doi:10.1002/nafm.10920

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Evaluation of Pacific Lamprey statoliths for age estimation across their life cycle

2023
By Pelekai, K. N. ; Hess, J. E. ; Weitkamp, L. A. ; ...
Source: North American Journal of Fisheries Management, 43, 1610–1

[PDF-1.10 MB]

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Journal Title:

North American Journal of Fisheries Management
Personal Author:

Pelekai, K. N. ; Hess, J. E. ; Weitkamp, L. A. ; Lampman, R. T. ; Miller, J. A.

Pelekai, K. N. ; Hess, J. E. ; Weitkamp, L. A. ; Lampman, R. T. ; Miller, J. A. Less -
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; NWFSC (Northwest Fisheries Science Center) ; LMRCSC (Living Marine Resources Cooperative Science Center at the University of Maryland Eastern Shore)

NMFS (National Marine Fisheries Service) ; NWFSC (Northwest Fisheries Science Center) ; LMRCSC (Living Marine Resources Cooperative Science Center at the University of Maryland Eastern Shore) Less -
Description:

The anadromous Pacific Lamprey Entosphenus tridentatus is an ecologically and culturally important fish that has experienced declines in abundance and distribution throughout large portions of its range. However, the lack of fundamental biological information, such as age and growth, impedes management and conservation efforts. We used known-age hatchery and wild Pacific Lamprey to evaluate the potential of statoliths (apatite concretions found within the auditory capsules) to provide estimates of individual size and age throughout ontogeny. Statolith size and growth were assessed with comparisons of morphometrics (area, perimeter, length, and width) in relation to fish length. Traditional band-reading methods and random forest (RF) analysis were evaluated for their utility in estimating age. Multivariate approaches, including those that include lethal and nonlethal predictor variables, provide potential approaches to estimate age in larval and early juvenile Pacific Lamprey.
Keywords:

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Otoliths Pacific Lamprey Age Validation Entosphenus Tridentatus Growth Shape Analysis Statoliths
Source:

North American Journal of Fisheries Management, 43, 1610–1
DOI:

https://doi.org/10.1002/nafm.10920
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PDF
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Journal Article
Funding:

Grant no. NA16SEC4810007
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Accepted Manuscript
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Submitted
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urn:sha256:5d3511320914bc9ef11f97b4bc229c01711a50ae9b74d8bc7df0eb9242a4308d
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https://repository.library.noaa.gov/view/noaa/56906/noaa_56906_DS1.pdf
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Evaluation of Pacific Lamprey statoliths for age estimation across their life cycle

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