期刊名称：Western Australia. Fisheries Department. Fisheries Research Reports
印刷版ISSN：1035-4549
出版年度：2006
卷号：160
出版社：Government of Western Australia / Department of Fisheries
摘要：Collection and use of length frequency information is a common tool used in stock assessment.
Size composition information of individuals of species within areas and within season can give
a picture of timing and strength of recruitment, patterns of spatial variability in size within
a region and may provide information on movement of individuals. Analysis of mean length
may also provide insight on changes in size composition over time, which may be as a result
of fishing pressure. However, in relatively short-lived species with only one to three cohorts,
mean size may be less useful. In this study, the length of selected (widespread and relatively
abundant) species of both fish and invertebrates were measured during each sampling period
in Shark Bay, Exmouth Gulf and Onslow to determine if any trends in recruitment patterns or
size composition could be detected between sites and time periods.
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