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Fishery Report: Exploratory fishery for Dissostichus spp. in Division 58.4.3b
January 2009 (catch limit for Dissostichus spp.: 30 tonnes; final reported catch: 31 tonnes). SSRU A was ... closed on 2 February 2009 (catch limit for Dissostichus spp.: 30 tonnes; final reported catch: 28 tonnes ... ). SSRU E was closed on 7 February 2009 (catch limit for Dissostichus spp.: 30 tonnes; final reported ... ) large movements of fish have been observed for fish at liberty for two years or more, and tend to be ...
Document : Site Section: Publications
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Rajid by-catch in the longline fishery for toothfish in Subarea 48.3
Rocks and South Georgia, achieved average catch rates of over 1 ray/thousand hooks, and 20-30 rays ... was 65-69cm for males and 80-84cm for females, for B. murrayi was 65-69cm and 70-74cm for males and ... 34.7/thousand hooks for toothfish and 2.2/thousand hooks for grenadier species. Generalised linear ... models demonstrated that there are significant differences between the catch rates of rays for different ...
Meeting Document : WG-FSA-99/40 : Autor(es): D.J. Agnew, J. Taylor and I. Everson (United Kingdom)
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Fishery Report: Exploratory fishery for Dissostichus spp. in Division 58.4.3b
Seong No. 829 - 10 6 16 Spain Arnela - 30 67 97 Galaecia - 20 8 28 2005/06 Chile Globalpesca I ... Shinsei Maru No. 3 36 36 21 29 80 3.2 Fixed parameter values 15. None available for this fishery. 4 ... undertaken for this research was not submitted for review by any SC-CAMLR Working Group, and that future ... fish have been observed for fish at liberty for two years or more, and tend to be from the east to the ...
Document : Site Section: Publications
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A revised estimate of short-term yield for the mackerel icefish (Champsocephalus gunnari) off Heard Island based on a trawl survey in 1998
population. Unlike the previous 3 years, the Age 2 cohort in 1998 is very weak and is expected to contribute ... little to the biomass in subsequent years. If recruitment to Age 2 in 1999 is also weak then the fishery ... in 2000 will be predominantly on Age 5 fish. After this time, catch limits may need to be set at an ... Shell Bank) in the vicinity of Heard Island enabled a revised estimate of yield for the coming 2 seasons ...
Meeting Document : WG-FSA-98/54 : Autor(es): A. Constable and D. Williams (Australia)
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Near-shore acoustic surveys for Antarctic krill at South Georgia, January 2004
observations from the past 20 years. A low density was perhaps not unexpected in line with recent cyclical ... to be well suited as an acoustic survey platform. The echosounder transducers were deployed on a ... were collected in seastate 6 with winds up to 30 knots and swells of approximately 2.5 m at survey ... patterns in density but may have been exacerbated by the presence of a large iceberg (40 miles by 30 miles ...
Meeting Document : WG-EMM-04/35 : Autor(es): A.S. Brierley, P.N. Trathan, J. Poncet and A. Morton (United Kingdom)
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Fishery Report: Exploratory fishery for Dissostichus spp. in Division 58.4.3b
years has been linked to an exemption for night setting in CM 24-02 and subject to a seabird by-catch ... fishery was set to zero tonnes. An additional limit of 72 tonnes was set for research fishing between 1 ... hypotheses for this division (Figure 3). TOT 58.4.3b 7 20. The Working Group recalled that it had ... Working Group that the sampling design undertaken for this research was not submitted for review by any ...
Document : Site Section: Publications
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Proposal for a longline survey on toothfish in Statistical Subarea 48.6 in 2017/18
. This initial year will be used for exploration with particular emphasis on tagging efforts and habitat ... and acoustic techniques. The proposed research is pertinent to issues raised by the Scientific ... Patagonian and Antarctic toothfish, tagging toothfish for biomass estimation and for stock linkage studies ... South Africa. In future years the aim is to expand the investigation and involve additional ...
Meeting Document : WG-FSA-17/61 Rev. 1 : Autor(es): Delegation of Norway
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The choice of procedure for deciding when to close fisheries regulated by CCAMLR: a simulation model
Paper Title: The choice of procedure for deciding when to close fisheries regulated by CCAMLR: a ... simulation model Abstract / Description: The methods, described in CCAMLR Conservation Measures, used for ... deciding the closure date for fisheries monitored by the Secretariat of CCAMLR, have been difficult to ... fluctuating random catch histories are simulated and the performance of four models for making closure ... +-, _""---'-, _....---..,-_-.-----.,_--,-. _~,--..::;::. ~L'i"=-, ---,-E--j 40 50 60 70 80 90 "10 of T AC required for a decision Figure 4: Model 1 ... ; and • when the cumulative catch is 90% (Conservation Measure 17/VIII) or 80% (Conservation Measure ... catch rates will always contain an element of uncertainty, for some methods more than others. The more ... WRITE (*,'(4F8.4)') B,A,RATESTART DO 20 I=l,MAXPERIOD C use equation for uniform accelleration to ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 81–97 : Autor(es): Agnew, D.J.
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Revised estimates of seabed areas within the 500 m isobath of the South Orkney Islands (subarea 48.2) and consequences for standing stock biomass estimates of nine species of finfish
examined, the point estimate of total biomass increased from 5 to 30% for eight species and decreased by 20 ... Islands (subarea 48.2) and consequences for standing stock biomass estimates of nine species of finfish ... , areas of seabed within the 500 m isobath (i.e. 0-500 m) were computed for 50 m depth intervals. Areas ... results were compared to the previously reported estimates of Everson (1987) for the 50-150, 150-250 and ... ) for the 50-150, 150-250 and 250-500 m depth intervals. The updated estimates are about 1 424 (20%) n ... biomass. Of the nine species examined, the point estimate of total biomass increased from 5 to 30% for ... eight species and decreased by 20% for one. Une carte bathymetrique revisee des iles Orcades du Sud ... PaCCMOTPeHHbIX BNAOB OqeHKa o6qet ~ H O M ~ C C ~ I BO3pOCna Ha 5-30% AJIR 8 BHAOB M COKpaTHJIOCb Ha 20% AnR ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 197–204 : Autor(es): C.D. Jones
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Utilising data from ecosystem monitoring for managing fisheries: development of statistical summaries of indices arising from the CCAMLR Ecosystem Monitoring Program
anomalies. The last section outlines an approach to the further development of CEMP indices for application ... Paper Title: Utilising data from ecosystem monitoring for managing fisheries: development of ... : A potential method is presented for combining data collected as part of the CCAMLR ecosystem ... monitoring program (CEMP) into a single index for each of predator, prey and environmental parameters. The ... simulation for two forms of alternative hypothesis with data series of up to 20 and 30 years. In both forms ... the test for robustness indicated above. For a dataset that extends to 20 years, at least half the ... is fixed at 20 years. The data series is continued with additional shifted values for a further ... provides for quite good power. Increasing the baseline to 20 years leads to only a moderate increase in ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 101–117 : Autor(es): de la Mare, W.K. and A.J. Constable