Fisheries Research Articles

Using an age-structured model to simulate the recovery of the Australian pilchard (Sardinops sagax) population following epidemic mass mortality

Document Type

Article

Publication Date

10-22-2002

Journal Title

Fisheries Research

ISSN

Print: 0165-7836 Electronic: 1872-6763

Keywords

Model, Epidemic, Population dynamics, Pilchard, Australia

Disciplines

Aquaculture and Fisheries | Marine Biology

Abstract

An age-structured model of the Australian pilchard’s population has been adapted to simulate recovery from the mass mortality suffered during the herpesvirus epidemics of 1995 and 1998/1999. The model generates a vigorous recovery even when levels of mortality are very high, which accords with observations. In spite of this strong recovery, the model indicates that stock is sensitive to increased fishing pressure. Healthy stocks of juvenile pilchards play a key role in the vigorous post-epidemic recovery.

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Digital Object Identifier (DOI)

https://doi.org/10.1016/S0165-7836(02)00136-4