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Indices of recruitment and effective spawning for tiger prawn stocks in the northern prawn fishery (FRDC project no. 95/014) 1995-1999

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  • Northern Prawn Fishery fishers' GPS plotter data collected between 1977 and 1997. The data indicates which areas in the Gulf of Carpentaria are considered untrawlable.

  • This data was performed as part of the Stock Recruitment Relationships project. The objectives were to collect more information on fishing effort at a smaller spatial scale (GPS systems had recently been introduced), to determine the degree of aggregation of fishing effort, and to determine how try net gear may alter fishing effort. CSIRO staff performed the data collection from commercial vessels, and measured and identified prawns - collected at night - from try shots. Prawns were sorted by species and sex, with each prawn individually measured. Ripe remales were given a gonad stage (1-5). No weight information was collected. Bycatch was identified and counted.