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Fishery Report 2013: Dissostichus eleginoides Heard Island (Division 58.5.2)
a time period of 3–5 years. These catch limits are also set so that they provide reasonable ... fishing methods continued until 2013, with an increasing proportion of longline fishing in each year ... , selectivity is high for 6-year-old fish and effectively declines to zero for fish older than 20 years. 18 ... combined with year-specific ALKs to obtain catch- at-age data for input as observations in CASAL for each ...
Document : Site Section: Publications
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Modifications to the Generalised Yield Model: updated input of recruitment time series data and annual fishing selectivity functions
functions for different years in the assessment model. This is done in the usual way but with repeated input ... , endeavouring to predetermine the recruitment series with an average value of M is no longer necessary for ... sections for each year at which the selectivity is altered. Author(s): A.J. Constable (Australia) Title ...
Meeting Document : WG-FSA-01/74 : Autor(es): A.J. Constable (Australia)
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Evaluation on the performance of echosounder on a fishing vessel using maximum seabed backscattering
and 2018) collected at a relatively fixed location with bottom depth around 200 m were used to ... , dB) for single ping were less than 1.0 dB with 0.35 dB and 0.78 dB at 120 kHz and 38 kHz ... , respectively. However, ANOVA analysis indicated that there was no significant difference among years at both ...
Meeting Document : SG-ASAM-18/06 : Autor(es): X. Wang, X. Yu and X. Zhao
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Trawl bag selectivity in the Champsocephalus gunnari fishery
were carried out in June 1990 in the South Georgia area concurrently with trawl surveys as part of the ... and the selectivity factor was 3.10 for a mesh size of 80 mm. Comparison of these results with results ... from previous years demonstrates close similarity. A significant increase in modal length (up to 34-35 ... was 3.10 for a mesh size of 80 mm. Comparison of these results with results from previous years ... of 299 80 cm. Comparison of these results with those from previous years shows close similarity ... 1990 in the South Georgia area concurrently with trawl surveys as part of the main biological and ... BMRT Anchar in June 1990 in the South Georgia area concurrently with trawl surveys within the main ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 295–312 : Autor(es): Bidenko, V.G. and I.G. Istomin
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Shipboard field operations conducted during the 1989 austral summer by the US Antarctic Marine Living Resources (AMLR) Program
included 1) ice seal studies in Gerlache Strait, 2) ichthyoplankton survey around South Georgia, 3) benthic ... , 9) net sampling for krill in association with the hydroacoustic survey, 10) sampling for larval ... densities associated with krill distribution, and 12) collection of cephlapod specimens. Author(s ...
Meeting Document : SC-CAMLR-VIII/BG/34 : Autor(es): Delegation of USA
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Results of the longline survey for toothfish in the northern Ross Sea region (SSRU 88.2A) by the FV Seljevær, Norway
Norwegian fishing vessel FV Seljevær surveyed SSMRU 88.2 A, research block 3, defined in the multi-Member ... . The vessel had a technical failure with the echosounder and bathymetry data are of low quality. The ... vessel set 5 longline sets with all vessel operations conforming to the required research criteria. A ... Abstract: A multi-year, multi-member research program was established to map and sample the ...
Meeting Document : WG-SAM-15/42 : Autor(es): Delegation of Norway
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Informe de Pesquería 2016:Dissostichus spp. Pesquería exploratoria en la División 58.4.2
period of 3 to 5 years. These catch limits are also set so that they provide reasonable certainty that ... by-catch Regulated by CM 33-03 Bird mitigation In accordance with CM 25-02. Limit of three (3) birds ... with a new fishery for grenadier (Macrourus spp.). In 2003, the fishery for Dissostichus spp. in ... Figure 1). Figure 1: Location of the research block in Division 58.4.2 in 2016. 3. In 2016, the ...
Document : Site Section: Publications
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Some thoughts on the CCAMLR risk assessment for seabird–fishery interactions
applied for 10 years and helps to define mitigation and monitoring requirements for fisheries within the ... Incidental Mortality Associated with Fishing for the assessments of risk, and performance of fisheries within ... (six areas, levels 4-5). Those with few foraging birds and no breeding populations are given lowest ... , and these are refined annually with input from a technical working group. The thresholds and data ...
Meeting Document : WG-FSA-06/33 : Autor(es): S. Waugh (New Zealand)
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Multiyear changes in distribution and abundance of Salpa thompsoni in the Western Antarctic Peninsula region
characterized by a circumpolar distribution and its appearance is clearly associated with the occurrence of the ... productivity and high water temperature. In recent years the expansion of distribution range of this ... analyses, coupled with environmental data, obtained both during sampling and from satellite data, allowed ... to prove that the distribution of salps was significantly correlated with water temperature and ...
Meeting Document : WG-EMM-16/75 : Autor(es): A. Panasiuk, A. Słomska, J. Wawrzynek, M. Konik and A. Weydmann
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Results from the groundfish survey conducted in CCAMLR Subarea 48.3 in January/February 2011
between the 27th January and 6th February 2011. 87 random hauls were completed, with good coverage across ... the shelf. Catch-weighted length frequencies of mackerel icefish indicated that 3+ sized fish ... mean biomass of 49,353 tonnes was estimated for mackerel icefish, with a lower 1-sided 95% CL of 31,373 ... tonnes. Euphausiidae was the dominant prey item in the mackerel icefish diet with increased dietary ...
Meeting Document : WG-FSA-11/29 : Autor(es): J. Brown, S. Gregory, K. Brigden, R. Benedet, O. Hogg, P. Brewin and L. Featherstone (United Kingdom)