Keyword
Penaeus merguiensis
20 record(s)
Type of resources
Topics
Keywords
Contact for the resource
Provided by
Formats
Update frequencies
Status
draft
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This dataset was collected to calculate optimal seasonal opening dates for the commercial fishery and to provide other management advice, by undertaking size sampling of pre-season and in-season banana prawns (F. merguiensis and F. indicus). In-season sampling of commercial catch on commercial trawlers (1983 - 1985) was supplemented during the season by data obtained from quality control staff at KFV Fisheries Pty Ltd. Sampling was organized for pre- and in-season searching and sampling voyages and prawns were sampled and measured from as many trawlers as possible.
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Report on currents in the Gulf of Papua and Western Coral Sea with reference to distribution of prawn and lobster larvae 1980: MacFarlane JW. (1980) Surface and Bottom Sea Currents in the Gulf of Papua and Western Coral Sea with reference to the Distribution of Larvae from the Commercially Important Prawn and Lobster Fisheries off the South Coast of Papua. Research Bulletin No.27 DPI Port Moresby December 1980. 128pp.
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Adult prawn species, size, sex, reproductive stage, moult stage, and parasites were measured at 20 stations in Albatross Bay, Gulf of Carpentaria. Sampling was carried out monthly, around the new moon period, between March 1986 and May 1992. The projects objectives were: - To carry out a trawl survey of prawn species distribution, size distribution, population density and reproductive status in the study area - To carry our sampling for larval prawns at selected stations. - To sample for phytoplankton species composition and chlorophyll a levels at selected stations.
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Prawn larval densities were calculated from stepped oblique bottom to surface plankton tows, deployed during monthly cruises carried out at twenty-one stations in Albatross Bay, Gulf of Carpentaria. Cruises were undertaken between March 1986 and April 1992. Penaeid prawn counts were recorded to species level (Penaeus spp.) for all observed larval stages. Sampling used a stepped-oblique tow, using a 0.5 x 0.5 square metre frame with 140-142 micron mesh. Salinity-temperature profiles were also recorded during the cruise.
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Plankton samples were taken monthly at Groote Eylandt, Gulf of Carpentaria. Numbers and densities of plankton were measured and prawn post-larval data were collected.
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Total zooplankton biomass levels were calculated from stepped oblique bottom to surface plankton tows, deployed during monthly cruises carried out at twenty-one stations in Albatross Bay, Gulf of Carpentaria. Cruises were undertaken between March 1986 and April 1992. Total zooplankton biomass were calculated as grams dry weight. Sampling used a stepped-oblique tow, using a 0.5 x 0.5 square metre frame with either a 140-142 micron mesh (sampler_code = 'A'), or a 250 micron mesh (sampler_code='E')
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Prawn larval densities were calculated from stepped oblique bottom to surface plankton tows, deployed during monthly cruises carried out between March 1986 and April 1992, at twenty-one stations in Albatross Bay, Gulf of Carpentaria. Penaeid prawn counts were recorded to genus level (Penaeus spp.) for all observed larval stages. Salinity-temperature profiles were also recorded during the cruise.
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The distribution of juvenile penaeids and a variety of fish species within mangroves was determined using stake and fyke nets in the Embley River (Cape York).
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Banana prawn sampling was carried out in the Norman River for four seasons to measure immigration, residents and emigration. In 1979, four other river systems in the surrounding area were sampled to look at geographic variation.
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Prawn larval density recorded from stepped oblique bottom to surface plankton tows in Albatross Bay, Gulf of Carpentaria. Nine cruises took place between 1975 and 1977 on chartered boats and the "Kalinda". Prawn larval biomass and densities were measured in several transects across the Gulf of Carpentaria, as well as total plankton biomass. These grids have been produced by CSIRO for the National Oceans Office, as part of an ongoing commitment to natural resource planning and management through the 'National Marine Bioregionalisation' project. The 'conversion factor' used to calculate the non commercial and commerical splits was derived from a spreadsheet containing Metapenaseus and Penaeus species. Commercial Metapenaeus spp. are M. endeavouri and M. ensis. The dataset was used to derive a commercial conversion factor. Thus the component of Metapenaeus spp. that are commercial; "Commercial Metapenaeus Prawn Larvae density" = 'conversion factor" x "total Metapeneaus prawn larval density" Conversion factor value 0.22. This was derived from all GOC data and checked for depths 5-20m, 20m, 30m, 30-40m, and 50-60m. It was found that the ratio of commercial Metapenaeus spp. to non-commercial Metapeneaus is constant with depth across the GOC.