Search results
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Reporting procedures for the continuous fishing method
Abstract: Information about catch and effort from the fishing fleet is vital for evaluation ... and with some systematic errors in positioning the catch. In previous EMM meeting we proposed extending ... of catch data. In this paper, we report a new evaluation of the reporting method. We find ... that it is possible to maintain present reporting frequency with improved positioning of the catch, but at the cost ...
Meeting Document : WG-EMM-17/48 : Author(s): O.R. Godø and T. Knutsen
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Killer whale (Orcinus orca) and sperm whale (Physeter macrocephalus) interactions with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic
pattern, occurring most often in the afternoon, while very few interactions were observed at night. Catch ... no cetaceans were present. Catch rates were slightly higher in the presence of sperm whales and it is possible ... with lower catch rates, indications are that depredation by sperm whales can lead to a decrease in catches ... . Catch rates were significantly lower when killer whales were present when compared to hauls during which ... at night. Catch rates were signifi cantly lower when killer whales were present when compared to hauls ... during which no cetaceans were present. Catch rates were slightly higher in the presence of sperm ... (toothfi sh). However, in areas with lower catch rates, indications are that depredation by sperm whales ... can lead to a decrease in catches. Some mitigation measures have been tried by vessels to reduce ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 111–126 : Author(s): Purves, M.G., D.J. Agnew, E. Balguerías, C.A. Moreno and B. Watkins
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2011/12
of fishing together with the catch of Dissostichus spp. and bycatch species by year for the period 1997–98 ... to 2011–12. During the 2011–12 fishing year most of the catch in Subarea 88.1 came from the slope SSRU ... 88.1K. About 70% of the catch in the north was taken from 88.1C, and about 85% of the catch on the shelf ... was taken from 88.1J. As in the past, most of the catch in Subarea 88.2 was taken from SSRU 88.2H ...
Meeting Document : WG-FSA-12/42 : Author(s): M.L. Stevenson ,S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)
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Evaluation of the results of trawl selectivity experiments by Poland, Spain and USSR in 1978/79, 1981/82 and 1986/87
different characteristics of experimental codends, length frequency distribution of stocks sampled, catch ... rates and catch composition. Details of these data were analyzed and minimum mesh sizes for several ... codends, length frequency distribution of stocks sampled, catch rates and catch composition. Details ... characteristics of experimental codends, length frequency distribution of stocks sampled, catch rates and catch ... of the codends and netting used, the length distribution of fish in the stock sampled, catch rates and catch ... twine is not well defined and SF point in Figure 1 is only a rough estimate. The effect of catch ... of 2 to 3 hours resulted in some cases in large catches of 2 to 5 tonnes and thus affected the selectivity ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 163–196 : Author(s): Slosarczyk, W., E. Balguerias, K. Shust and S. Iglesias
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Linking acoustic scattering coefficient to krill fishery data: feasibility of estimating krill abundance using fishing survey
between the acoustic scattering coefficient of krill swarms and catch, catch per unit effort (CPUE), catch ... abundance based on fishery data. The results showed that average catch of daytime trawls was significantly ... higher than average catch of night trawls. The average thickness of krill swarm in the daytime ... +5.8976 (R 2 =0.5818). NASC and catch also had a significant correlation, the equation is y=2.0324x+6.3795 ...
Meeting Document : WG-EMM-17/44 : Author(s): T. Wang, G.P. Zhu, J.F. Tong and L.X. Xu
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UPDATE OF THE INTEGRATED STOCK ASSESSMENT FOR THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS (DIVISION 58.5.2)
, for the Heard and McDonald Islands (Division 58.5.2) was updated by replacing catch-at-length proportions from ... commercial catches with catch-at-age proportions by applying age length keys (ALKs) to gear- type/ground (i.e ... significant loss of information. Pooling the ALKs in this way meant that all commercial catch data could ... be input to CASAL as catch-at-age proportions except for the 2009 catches. For 2006 and 2007 random ...
Meeting Document : WG-FSA-09/20 : Author(s): S.G. Candy and D.C. Welsford (Australia)
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CCAMLR-XXVIII
CATCH LIMITATIONS ON EUPHAUSIA SUPERBA IN STATISTICAL SUBAREAS 48.1, 48.2, 48.3 AND 48.4 Delegation ... -XXVIII/38 CATCH DOCUMENTATION SCHEME (CDS) FUND PROPOSAL – ILLEGAL, UNREGULATED AND UNREPORTED (IUU ... -XXVIII/41 PROPOSAL TO AMEND CONSERVATION MEASURE 10-05 CATCH DOCUMENTATION SCHEME FOR DISSOSTICHUS SPP ... of Australia CCAMLR-XXVIII/BG/23 HEARD ISLAND AND MCDONALD ISLANDS EXCLUSIVE ECONOMIC ZONE 2008-09 IUU CATCH ...
Meeting
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CCAMLR Statistical Bulletin, Vol. 30
volume in MS Access database format. The Bulletin contains the complete time series of catch and effort ... statistics and trade statistics, as well as the catch histories of selected species and the seabed areas ... , aggregated fishery catch, aggregated toothfish landings, aggregated toothfish exports, reference data, see ... also CCAMLR Statistical Bulletin, Vol. 30 data files (1.08 MB)). Catches of krill by month and SSMU ... Bulletin The Statistical Bulletin is published annually and contains: · Catch and effort statistics ... for all fisheries in CCAMLR’s Convention Area · Catch histories for selected fishery target species ... ) · Planimetric seabed areas by selected depth intervals in the Convention Area. The catch history of krill ... to the entire time series of catch, effort and trade statistics. CCAMLR’s Convention Area extends from ...
Document : Site Section: Data
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Basic Documents
for Access and Use of CCAMLR Data (20.18 KB) Part 12 Rules for Access to Catch Documentation Scheme Data ... of CCAMLR Data • Rules for Access to Catch Documentation Scheme Data http://www.ccamlr.org ... for Access to Catch Documentation Scheme Data, and texts of the CCAMLR System of Inspection and the CCAMLR ... and dependent or related species or populations; (c) ensure the acquisition of catch and effort statistics ... their harvesting activities, including fishing areas and vessels, so as to enable reliable catch and effort ...
Document : Site Section: Publications
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CCAMLR Statistical Bulletin, Vol. 31
volume in MS Access database format. The Bulletin contains the complete time series of catch and effort ... statistics and trade statistics, as well as the catch histories of selected species and the seabed areas ... , aggregated fishery catch, aggregated toothfish landings, aggregated toothfish exports, reference data, see ... also CCAMLR Statistical Bulletin, Vol. 31 data files (739.43 KB)). Catches of krill by month and SSMU ... Bulletin The Statistical Bulletin is published annually and contains: · Catch and effort statistics ... for all fisheries in CCAMLR’s Convention Area · Catch histories for selected fishery target species ... ) · Planimetric seabed areas by selected depth intervals in the Convention Area. The catch history of krill ... to the entire time series of catch, effort and trade statistics. CCAMLR’s Convention Area extends from ...
Document : Site Section: Data