Natural mortality rates for the Pacific blue marlin stock

Brodziak, Jon

doi:10.25923/veyk-0393

i

Natural mortality rates for the Pacific blue marlin stock

2026
By Brodziak, Jon
Series: PIFSC working paper WP-26-01

Details

Personal Author:

Brodziak, Jon
Corporate Authors:

Pacific Islands Fisheries Science Center (U.S.)
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; PIFSC (Pacific Islands Fisheries Science Center)
Description:

This working paper updates sex- and age-specific natural mortality M for Pacific blue marlin. First, it develops an alternative estimator based on the Hamel & Cope (2022) maximum-age approach with Lorenzen rescaling. Both approaches are implemented using the new two-stanza growth model (TSGM) with age-determination uncertainty developed by Chang et al. (2025). Second, it revises the Brodziak (2021) meta-analysis framework, which combines multiple adult M estimators and rescales juvenile M using the Lorenzen allometric relationship.
Keywords:

Blue Marlin Fisheries Stock Assessment
Series:

PIFSC working paper WP-26-01
DOI:

https://doi.org/10.25923/veyk-0393
Format:

pdf
Document Type:

Working Paper
License:

https://creativecommons.org/publicdomain/zero/1.0/
Rights Information:

CC0 Public Domain
Compliance:

Submitted
Main Document Checksum:

urn:sha-512:9d1c6f8c3502bfc014c75c5fa31858a9301f098de1c7743f29b8b6f0982f8d6375a93c58f535f4f061da2d5cc8a00a9478f09caa613c3829c88e481e4270d2c2
Download URL:

https://repository.library.noaa.gov/view/noaa/72665/noaa_72665_DS1.pdf
File Type:

[PDF - 1.40 MB ]

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