12 results
Environment
PROJECT NUMBER • 2003-041
PROJECT STATUS:
COMPLETED

Estimation of natural and fishing mortality using length composition data

The objectives of this project were to develop length-based approaches for estimation of natural, fishing and total mortality, and to explore the application of these methods to the data from selected fisheries. The methods that were developed were essentially length-based versions of age-based...
ORGANISATION:
Murdoch University
Environment
PROJECT NUMBER • 2010-001
PROJECT STATUS:
COMPLETED

Predicting the impacts of shifting recreational fishing effort towards inshore species

The project outputs have led to the following outcomes: 1. A model has been developed enabling reliable estimation of mortality of fish species that undertake size-related, unidirectional, offshore movements from age and length data. This new modelling approach is likely to be applicable to stocks...
ORGANISATION:
Murdoch University
Environment
PROJECT NUMBER • 2005-063
PROJECT STATUS:
COMPLETED

Development of an ecosystem approach to the monitoring and management of Western Australian fisheries

Diversity and ecosystem-based indicators were calculated for commercial finfish fisheries from 1976 to 2005 for the West Coast, South Coast, Gascoyne, Pilbara and Kimberley bioregions. The ecosystem-based indices, which detect changes in the species composition of the food web within the ecosystem,...
ORGANISATION:
Murdoch University
Environment
PROJECT NUMBER • 2000-137
PROJECT STATUS:
COMPLETED

Determination of the biological parameters required for managing the fisheries of four tuskfish species and western yellowfin bream

Data have been collected on the biology of western yellowfin bream and four tuskfish species that are of the type and quality required by managers for developing appropriate plans for conserving the stocks of these five commercial and recreational species. Emphasis was thus placed on determining (1)...
ORGANISATION:
Murdoch University
Environment
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