Temporal and spatial patterns in recruitment of three penaeid prawns in Moreton Bay, Queensland, Australia

A. J. Courtney, J. M. Masel, D. J. Die

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

The size at recruitment, temporal and spatial distribution, and abiotic factors influencing abundance of three commercially important species of penaeid prawns in the sublittoral trawl grounds of Moreton Bay (Queensland, Australia) were compared. Metapenaeus bennettae and Penaeus plebejus recruit to the trawl grounds at sizes which are relatively small (14-15 mm carapace length, CL) and below that at which prawns are selected for, and retained, in the fleet's cod-ends. In contrast, Penaeus esculentus recruit at the relatively large size of 27 mm CL from February to May, well above the size ranges selected for. Recruitment of M. bennettae extends over several months, September-October and February-March, and was thus likely to be bi-annual, while the recruitment period of P. plebejus was distinct, peaking in October-November each year. Size classes of M. bennettae were the most spatially stratified of the three species. Catch rates of recruits were negatively correlated with depth for all three species, and were also negatively correlated with salinity for M. bennettae.

Original languageEnglish (US)
Pages (from-to)377-392
Number of pages16
JournalEstuarine, Coastal and Shelf Science
Volume41
Issue number4
DOIs
StatePublished - Oct 1995
Externally publishedYes

Keywords

  • estuary
  • management
  • Moreton Bay
  • penaeid
  • prawn
  • recruitment

ASJC Scopus subject areas

  • Aquatic Science
  • Oceanography
  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

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