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Abstract

Multipurpose usage of the sea, including its major Role as a source of high quality protein,demands the development and implementation of scientifically based management programmes. Technological advances in fishing have exaggerated the need for fisheries management based on stock assesment. A fish stock as a naturally renewable natural resource behaves generally in a manner susceptible to prediction by mathematical modelling. The work of Schaeffer and of Beverton and Holt is the basis of most currently used models. Economics play a major role in controlling commercial fisheries are discussed in detail. A pot fishery for southern rock lobster is slightly over exploited and a reduction in the amount of effort seems to be required if production is to return to peak levels. A relatively new fishery for abalone based on collection by divers shows little sihn of reaching maximum production although a previously steady increase in fished area now has ceased. The scallop fishery in D'Entrecasteaux Channel has collapsed and overfishing seems to have been a factor but other factors unrelated t fishing play some part.

Item Type:	Article
Authors/Creators:	Harrison, AJ
Keywords:	Royal Society of Tasmania, RST, Van Diemens Land, natural history, science, ecology, taxonomy, botany, zoology, geology, geography, papers & proceedings, Australia, UTAS Library
Journal or Publication Title:	Papers and Proceedings of the Royal Society of Tasmania
ISSN:	0080-4703
DOI / ID Number:	https://doi.org/10.26749/rstpp.108.1.81
Collections:	Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
Additional Information:	Edited by M.R. Banks and T.G Dix. - Copyright Royal Society of Tasmania
Item Statistics:	View statistics for this item

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