Journal
FISHERIES RESEARCH
Volume 97, Issue 1-2, Pages 127-133Publisher
ELSEVIER
DOI: 10.1016/j.fishres.2008.12.021
Keywords
Extended survivors method; Instantaneous rate of natural mortality; Catch-at-age data; Catch per unit effort (CPUE)
Categories
Funding
- National Natural Science Foundation for Young Scientists of China [40801225]
- National Natural Science Foundation of China [30271025]
- Scientific Research project of Zhejiang Ocean University [X08M04]
Ask authors/readers for more resources
This Study utilized the catch-at-age data and an abundance index (catch per unit effort, CPUE) to estimate instantaneous rate of natural mortality (M) of fish by using the extended survivors method. In generating the artificial data, two alternative assumptions of constant and varied catchability were made. Monte Carlo simulations showed that the estimates of M were more sensitive to the coefficient of variation (CV) in the catch data. Smaller instantaneous rate of fishing mortality (F) or large M Could improve the estimates of M. but which are more sensitive to F. The method was also applied to two sets of published data, and both obtained viable estimates of M. (C) 2009 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available