eCite Digital Repository

Population dynamics and fishery management of the paua, Haliotis iris 11 Dynamics and management as examined using a size class population model

Citation

Sainsbury, K, Population dynamics and fishery management of the paua, Haliotis iris 11 Dynamics and management as examined using a size class population model, New Zealand Journal of Marine and Freshwater Research, 16, (1982) pp. 163-173. ISSN 0028-8330 (1982) [Refereed Article]

Abstract

A 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.

Item Details

Item Type:Refereed Article
Keywords:Haliotis iris, Paua, marine molluscs, commercial species, population dynamics, stock assessment, population structure, mathematical models, simulation
Research Division:Environmental Sciences
Research Group:Environmental Science and Management
Research Field:Natural Resource Management
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - Wild Caught
Objective Field:Wild Caught Prawns
Author:Sainsbury, K (Professor Keith Sainsbury)
ID Code:73195
Year Published:1982
Deposited By:Sustainable Marine Research Collaboration
Deposited On:2011-09-20
Last Modified:2011-09-20
Downloads:0

Repository Staff Only: item control page