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Prawn Trawls

42 record(s)

 

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From 1 - 10 / 42
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    The dataset is a compilation of records of sea turtles caught in prawn trawls in the Northern Prawn Fishery (NPF). There are 316 records of five species. The records are from research voyages, scientific observers on commercial prawn trawlers and crew member observers on commercial prawn trawlers. More specifically, the data sources were as follows: (a) CSIRO and collaborative research voyages on RV Southern Surveyor; (b) crew member observers on NPF commercial vessels, 2003-2005 (FRDC project 2002/035, collaboration between CSIRO and AFMA, funding by FRDC); (c) scientific observers on NPF commercial vessels (FRDC project 2000/173, collaboration between CSIRO and the Australian Maritime College (AMC), funding by FRDC); (d) crew members and scientific observers on NPF commercial vessels (FRDC project 1998/202, collaboration between BRS, CSIRO, AFMA, funding by FRDC and NORMAC); (e) crew member observers and scientific observers on NPF commercial vessels and RV Southern Surveyor (FRDC project 1996/257, collaboration between CSIRO, DPIQ and AMC, funding by FRDC).

  • This dataset series comprises deck logs from the vessel "Rama" in which observations made during the Gulf of Carpentaria Prawn Survey are recorded. This survey was conducted jointly by the Queensland State and Commonwealth Governments during 1963-1965 to examine the prawn resources of the south-eastern corner of the Gulf of Carpentaria.

  • 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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    In 1997 and 1998, we tagged and released 18013 red-legged banana prawns in the Joseph Bonaparte Gulf. The location of recaptures was documented for 916 tagged prawns in 1997 and 512 tagged prawns in 1998. Tag recapture information and commercial fishery logbook information was used to test whether red-legged banana prawns moved continuously to deeper waters or whether they moved first to deep water but then returned to shallower waters. The analysis is based on compartment models of recaptures per unit of fishing effort.

  • This dataset series comprises fish species composition data collected during the survey conducted jointly by the Queensland State and Commonwealth Governments during 1963-1965 to examine the prawn resources of the south-eastern corner of the Gulf of Carpentaria. Aubrey Harris retrieved the data from Rainer and Munro c.1984 - and it was used by Aubrey Harris and Ian Poiner for analysis for their paper (Harris, A. N. M. and Poiner, I. R. (1991)).

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    Fish Bycatch samples were collected for CSIRO from trawls between March and December 1983.These trawls were part of a 12 month survey of the tiger prawn fishery of southeastern Gulf of Carpentaria carried out by Queensland Department of Primary Industry. The vessels involved were the 'Gwendolyn May' and Shirley Ross' which fished each month for four nights on either side of the new moon, using 6-fathom nets (Florida Flyers, with a Texas drop chain rig) with a cod-end mesh of 45 mm. This data was then used to compare demersal fish community with that found from Munro's 1962-65 data (Poiner and Harris 1986).

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    This dataset series comprises fish species composition data collected during the trawl and bottom sediment survey carried out in April 1985 and April 1986. This data was collected and used to compare fish abundance for this region with the pre-trawling surveys done by Munro between 1963 and 1965. Sediment samples were collected during the 1986 survey.

  • Adult grooved tiger prawns (Penaeus semisulcatus) were caught in prawn trawls during one transect of the Gulf of Carpentaria on the FRV Southern Surveyor. The catches were used to assess offshore migration of the species. Data collected include length frequency, sex and gonad stage. Data were collected using 39 paired Florida Flyer trawls centred on 6nm grids across approximately 13 sites. The sites are spaced some distance apart along the cruise track (a transect from Weipa to N Groote and back to Weipa). The AusTED and standard codend were compared in these trawls, and the same data were also to be used monitor the distribution of Penaeus semisulcatus across the Gulf. Problem shots were retrawled when possible to meet the experimental design. Nine were abandoned due to lack of time.

  • Prawn trawl data from Weipa, East and South East Gulf of Carpentaria in the late 1970s. The main objective was to ascertain the distribution and abundance of each of the main commercial and some non-commercial penaeid species. The main data collection was performed off the Judy B with cruises repeated every month for 13 months; some other vessels were involved at different times (Kalinda, Raptis Pearl, Sprightly). Trawling was conducted at night and consisting of 30 minute shots. All prawns were sorted by species (general codes used) and sex, but no weights were recorded. Catch rates were expressed as number of prawns caught per net per hour. There were more than four sampling plans.

  • The objectives of this project were: To design and implement a survey program to augment the historical survey data used for species split with contemporary, well-targeted and spatially precise data. This survey to be trialled in 2002-3 and confirmed in 2003-4. To establish a protocol so that such surveys can be quickly designed and implemented on an ongoing monitoring basis. To develop further the species split methods first proposed in FRDC 98/109 so that they can be used confidently in any new stock assessments. To re-examine the historical survey data as part of the strategy for the above and to report, particularly on the value of size class information for this purpose. To investigate and report on the potential use of electronic logbooks for enhancing the precision of stock assessment of Tiger prawn species, particularly on a spatially local scale. To investigate and report on the use of size class data for gaining some information on recruitment patterns for the stock assessment.