Conflicting perceptions on the life-history covariates of density-dependent recruitment based on information-generating equations

Munyandorero, Joseph

doi:10.1093/icesjms/fsaa016

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The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.

i

Conflicting perceptions on the life-history covariates of density-dependent recruitment based on information-generating equations

2020
By Munyandorero, Joseph
Source: ICES Journal of Marine Science, 77(3), 878-889

[PDF-605.53 KB]

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Journal Title:

ICES Journal of Marine Science
Personal Author:

Munyandorero, Joseph
NOAA Program & Office:

NMFS (National Marine Fisheries Service)
Description:

The stock–recruit steepness (h) and compensation ratio are alternative measures of the degree of density-dependent recruitment. They relate similarly to the longevity-related life-history traits (LRLHTs), but studies using information-generating equations and describing such relationships convey three conflicting perceptions. Perception 1 is that h and the compensation ratio decrease as longevity increases and are highest in short-lived, high-productivity species. This perception, usually believed to be inherent in the definition of steepness, is not substantiated by the very definition and, hence, theoretically is wrong. Perception 2 is that h and the compensation ratio increase with longevity and are highest in long-lived, low-productivity species; this perception may occur when the relationships between natural mortality and other LRLHTs are strong, and is most likely correct. Perception 3 is that h and the compensation ratio are independent of LRLHTs; this perception may be caused by the lack of the relationships between natural mortality and other LRLHTs, and is a distortion of perception 2.
Keywords:

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Aquatic Science Ecology Ecology, Evolution, Behavior And Systematics Oceanography
Source:

ICES Journal of Marine Science, 77(3), 878-889
DOI:

https://doi.org/10.1093/icesjms/fsaa016
ISSN:

1054-3139;1095-9289;
Format:

PDF
Publisher:

Oxford University Press (OUP)
Document Type:

Journal Article
Funding:

Grant no. NA17NMF4740329
License:

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

CC0 Public Domain
Compliance:

Library
Main Document Checksum:

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urn:sha256:5996763e7244653b62f2acf3f151e8fe81f69fcd7094f4a4fc965c31746cd9ea
Download URL:

https://repository.library.noaa.gov/view/noaa/59600/noaa_59600_DS1.pdf
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Conflicting perceptions on the life-history covariates of density-dependent recruitment based on information-generating equations

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