Результаты поиска

1. Continuation of multi-Member research on the Dissostichus spp. exploratory fishery in East Antarctica (Divisions 58.4.1 and 58.4.2) by Australia (notification ID 98422, 98423), France (94903, 94904), Japan (94886, 94887), Republic of Korea (94889, 94890) and Spain (94835)

   milestones in accordance with ANNEX 24-01/A. In 2016, the Scientific Committee agreed that the research plan ... rules remain to be determined for these Divisions. WG-FSA-16/29 outlines the first multi-member ...

   Meeting Document : WG-SAM-17/08 : Автор(ы): Delegations of Australia, France, Japan, Republic of Korea and Spain

2. Estimating density and biomass of Antarctic krill around South Sheltland Islands using the 2-dB difference method

   estimated using an acoustics survey. Acoustic data were collected with 38 and 120 kHz from April 13 to 24 in ... integration (SHAPES module within that software for swarm identification) based on data from a transect-based ... survey. The weighted krill density and biomass were estimated to be 0.20 g/m 2 and 18 thousand tons (CV ...

   Meeting Document : WG-EMM-17/08 : Автор(ы): S.-G. Choi, K. Lee and D. An

3. Biomass estimates of Antarctic krill based on survey conducted by the Chinese fishing vessel FV Fu Rong Hai during the 2019 Area 48 survey

   shown that mean krill biomass density was 80.7 g m-2 with a CV of 13.6% in the survey area. However, the ... krill biomass estimates might be updated pending on the outcome of krill length clustering analysis and ...

   Meeting Document : SG-ASAM-2019/07 : Автор(ы): X. Wang, X. Yu, X. Zhao, J. Zhang, G. Fan, J. Zhu and Y. Ying

4. Estimating food consumption of marine predators: Antarctic fur seals and macaroni penguins

   and macaroni penguin Eudyptes chrsolophus) that feed on krill in the Southern Ocean were used as ... examples to test the algorithm. A sensitivity analysis showed that estimates of prey consumed were most ... algorithm showed that the seasonal demand for food peaked in both species in the second half of the breeding ... macaroni penguins compete for krill with a commercial fishery, these results provide an insight into the ...

   Meeting Document : WG-EMM-02/23 : Автор(ы): I.L. Boyd (United Kingdom)

5. EXTRAPOLATING CONTINUOUS PLANKTON RECORDER DATA THROUGH THE SOUTHERN OCEAN USING BOOSTED REGRESSION TREES

   Plankton Recorder (SO-CPR) Survey. We demonstrate that it is possible to obtain a relationship between both ... data withheld from the fitting. We found that the data withholding of data from the model fitting must ... be done on a tow by tow basis as there is significant within-tow correlation. (2) Spatial cross ... subsequently to test the predictive accuracy of the model. These cross-validation methods showed that the ...

   Meeting Document : WG-SAM-08/12 : Автор(ы): M.H. Pinkerton, A.N.H. Smith (New Zealand), B. Raymond, G. Hosie (Australia) and B. Sharp (New Zealand)

6. Spatial and seasonal distribution of adult Oithona similis in the Southern Ocean: predictions using boosted regression trees

   waters. We demonstrate that it is possible to obtain reasonable models for both the presence (area under ... . Our analyses support the hypothesis that adult O. similis abundance is related to environmental ... , with surface abundances 20% higher at night than during the day. There was no evidence of diel ... area in the outer Bellingshausen Sea. We recommend that a database of all available net-haul data on ...

   Meeting Document : WG-EMM-10/P14 : Автор(ы): M.H. Pinkerton, A.N.H. Smith, B. Raymond, G.W. Hosie, B. Sharp, J.R. Leathwick and J.M. Bradford-Grieve

7. Results of a research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea, February 2012

   Abstract:  At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... recruitments from a well-designed survey could be a useful input into the Ross Sea stock assessment model and ... depth preference between 400 and 900 m. It is recommended that future surveys in this area should focus ... toothfish, the survey provided the opportunity to compare catch rates in 2012 with historical catch rates by ...

   Meeting Document : WG-SAM-12/29 : Автор(ы): S.M. Hanchet, S. Mormede, A. Dunn (New Zealand) and H.-S. Jo (Republic of Korea)

8. SUMMARY OF SCIENTIFIC OBSERVATIONS RELATED TO CONSERVATION MEASURES 24-02 (2008), 25-02 (2009), 25-03 (2009) AND 26-01 (2009)

   placeholder for this item in order that the Scientific Committee can be made aware of any anomalous data in ... 2009/10 season relating to compliance with Conservation Measures 24-02 (2008) “Longline weighting for ... . 2 and Jung Woo No. 3 (Table 1). Observers reported that all bait box packaging bands were cut and ...

   Meeting Document : WG-FSA-10/08 : Автор(ы): Secretariat

9. Proposal for an extension to the mark recapture experiment to estimate toothfish population size in Subarea 48.4

   , to bring the mitigation requirements for 48.4 into line with the IMAF risk assessment, such that ... for D. eleginoides and D. mawsoni in the southern area. 6. It is proposed that catch limits are ... daytime setting would be permitted if bottle tests are undertaken, and the fishing season is extended to ...

   Meeting Document : WG-FSA-08/46 : Автор(ы): J. Roberts and D. J. Agnew (UK)

10. Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass

    krill yields according to decision rules that relate spawning stock status to the median unexploited ... ). The krill yield model uses a biased estimate of SB0 with a method for correcting this bias in the ... results show that the biased estimate of SB0 results in a biased estimate of the probability of critical ... critical depletion will be too high. The relationship between fishing season and spawning season will ...

    Meeting Document : WG-EMM-97/45 : Автор(ы): de la Mare, W.K., Constable, A.J.

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