Search results
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Revised research plan for toothfish in Divisions 58.4.4a and 58.4.4b by the Shinsei Maru No. 3 in 2010/11
. In Division 58.4.4 a & b, we proposed the research plan for toothfish in the Division by Shinsei ... Maru No. 3 to be conducted throughout the whole four SSRUs (A-D) in the Division in April-June 2011 in ... , following advice taken in WG-SAM 2010 meeting that research should concentrate effort on a subset of the ... -minute latitude x 15-minute longitude grid points, taking into account the increase of the recaptures. A ...
Meeting Document : WG-FSA-10/49 : Author(s): Delegation of Japan
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Fisheries risks to the population viability of black petrel (Procellaria parkinsoni)
data, from which it was possible to infer that the population was probably increasing at a rate between ... probably increasing shows that there is no evidence that fisheries currently pose a risk to this population ... . However, this does not imply that there is clear evidence that fisheries do not pose a risk to this ... , 77% are successful (i.e., produce a fledgling). Survival rates before the pre-breeder stage are not ...
Meeting Document : WG-SAM-10/P01 : Author(s): R.I.C.C. Francis and E.A. Bell (New Zealand)
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Fatty acid analysis to infer diet of Antarctic toothfish caught in February 2012 in the southern Ross Sea
biomarker analysis and conventional diet analysis. Sampling collections were made during a longline survey ... isotope analyses from this study provide evidence that a combination of these two techniques can delineate ... hunteri, and Trematomus loennbergii indicated a trophic connection between toothfish and these fish ... , and T. loennbergii, indicating a higher trophic position of thetoothfish. In contrast, similar δ 15 N ...
Meeting Document : WG-FSA-12/61 : Author(s): I. Yeon, H.-S. Jo, C. Lim (Republic of Korea), S.M. Hanchet (New Zealand), D.-W. Lee and C.-K. Kang (Republic of Korea)
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Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.3a
and observer data. The stock size estimate for a research block (5843a) was revised following advice ... in the last WG-SAM meeting. We tentatively recalculated a sample size of Dissostichus spp in each ... block in such a way that the numbers of tag recoveries in the 2016 season shows an approximately 0.3 of ... sizes turned out to be larger in many blocks and smaller in a few blocks over the data poor-fisheries ...
Meeting Document : WG-FSA-13/40 : Author(s): Delegation of Japan
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Descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 & 88.2 for the years 2000–01 to 2012–13
Subareas 88.1 and 88.2, including summaries of data for the 2013 season. Overall, a total of 37 047 ... most fish are recorded as being recaptured only a short distance from their point of release, typically ... that in 2009. The reason for the low number of recaptures in 2009 and 2012 is likely a consequence of ... . Author(s): S. Parker, A. Dunn, S. Mormede and S. Hanchet (New Zealand) Title: Descriptive analysis of ...
Meeting Document : WG-FSA-13/49 : Author(s): S. Parker, A. Dunn, S. Mormede and S. Hanchet (New Zealand)
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Do krill fisheries compete with macaroni penguins? Spatial overlap in prey consumption and krill catches during winter
and the krill fishery can occur. We tracked adult macaroni penguins from a colony in South Georgia ... biomass of food consumed during the winter period. We combined these to produce a surface of the tonnes of ... . However macaroni penguins had a very wide pelagic distribution across the Scotia Sea whereas the fishery ... fisheries should the latter expand in the future, and provides a framework for assessing predator-fishery ...
Meeting Document : WG-EMM-14/02 : Author(s): N. Ratcliffe, S.L. Hill, I.J. Staniland, R. Brown, S. Adlard, C. Horswill and P.N. Trathan (United Kingdom)
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An updated descriptive analysis of the toothfish (Dissostichus spp.) tagging program in Subareas 88.1 and 88.2 for 2006/07
2007. Overall, a total of 15 088 Antarctic toothfish have been reported as released and 458 recaptured ... . There was also some evidence that more fish are recaptured after a longer time at liberty on the slope ... than in the North. In addition, a Patagonian toothfish tagged near Macquarie Island was recaptured in ... tagged by different vessels in different local regions. Further investigation is required. Author(s): A ...
Meeting Document : WG-FSA-07/40 : Author(s): A. Dunn, S.M. Hanchet and S.L. Ballara (New Zealand)
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Ecological risk management and the fishery for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea, Antarctica
Toothfish to below a level that ensures stable recruitment. 2. Bycatch species harvest: Risks of depletion ... of other harvested species to below a level that ensures stable recruitment. 3. Ecosystem impacts ... -quantitative and qualitative estimates are needed because of a lack of knowledge and inability to predict the ... CCAMLR. Author(s): M.H. Pinkerton, A. Dunn and S.M. Hanchet (New Zealand) Title: Ecological risk ...
Meeting Document : WG-EMM-07/24 : Author(s): M.H. Pinkerton, A. Dunn and S.M. Hanchet (New Zealand)
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Interactions between seabirds and deep water hake trawl gear: an assessment of impacts in South African waters 2004/05
of fishery wastes. Using a bootstrapping approach to estimate 95% confidence intervals (CI), the ... dumping in summer. Serious warp incidents were independent of age among albatrosses, but there was a ... tendency for immature gannets to have a higher interaction rate than adults. Deaths resulting from ... trawls where dumping takes place and the average duration of dumping. A simple model was developed which ...
Meeting Document : WG-FSA-06/41 : Author(s): B.P. Watkins, S.L. Petersen and P.G. Ryan (South Africa)
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Diets of sympatrically breeding Adélie, gentoo and chinstrap penguins from Admiralty Bay, South Shetland Islands, Antarctica, 1981 to 2000
-annual variability in mean food load sizes during chick rearing and there was a high degree of coherence ... stomach contents and noted a significant increase in the proportion of digested versus fresh stomach ... contents of a penguin’s food load has more than twice the caloric value of a comparable mass of fresh krill ...
Meeting Document : WG-EMM-03/29 : Author(s): W.Z. Trivelpiece (USA), K. Salwicka (Poland) and S.G. Trivelpiece (USA)