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Population dynamics and fishery management of the paua, Haliotis iris 11 Dynamics and management as examined using a size class population model
journal contribution
posted on 2023-05-17, 08:17 authored by Sainsbury, KA population model is developed and used in conjunction with the results of a study of an unexploited population of paua (H. iris Martyn) to examine the historical pattern of recruitment and yield per recruit. As H. iris cannot yet be aged, the population model uses size rather than age classes, but is structurally similar to the Leslie matrix model. Simulations suggest that the observed population size structure resulted from a short (.apprx. 5 yr) period of high recruitment, preceded and followed by longer periods of low recruitment. Yield per recruit analysis shows that the present minimum legal size for the fishery (127 mm) provides close to the maximum yield per recruit for most stocks, although yield per recruit could be increased in some areas by a reduction in minimum legal size.
History
Publication title
New Zealand Journal of Marine and Freshwater ResearchVolume
16Issue
1982Pagination
163-173ISSN
0028-8330Department/School
Institute for Marine and Antarctic StudiesPublisher
Sir PublishingPlace of publication
Po Box 399, Wellington, New ZealandRepository Status
- Restricted