Resultados de la búsqueda
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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 : Autor(es): 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 : Autor(es): 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 : Autor(es): N. Ratcliffe, S.L. Hill, I.J. Staniland, R. Brown, S. Adlard, C. Horswill and P.N. Trathan (United Kingdom)
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Habituation to an acoustic harassment device (AHD) by killer whales depredating demersal longlines
in deterring depredation we experimentally tested a high amplitude device (195 dB re 1 μPa 6.5 kHz 1 ... m from the source) from a Patagonian toothfish longliner operating off the Crozet Islands while it ... a 10- 300 m range from the vessel, as they only have access to fishing gear during hauling. We ... fled over 700 m away from the vessel when first exposed to the AHD. However, they remained within a 10 ...
Meeting Document : WG-FSA-14/P04 : Autor(es): P. Tixier, N. Gasco, G. Duhamel and C. Guinet
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At-sea distribution and prey selection of Antarctic petrels and commercial fisheries
Antarctic krill fisheries and the distribution of a krill dependent seabird, the Antarctic petrel ... the non-breeding season. In a second step, we described the length frequency distribution of Antarctic ... breeding thousands of kilometers away. Author(s): S. Descamps, A. Tarroux, Y. Cherel, K. Delord, O.R ... . Godø, A. Kato, B.A. Krafft, S.-H. Lorentsen, Y. Ropert-Coudert, G. Skaret and Ø. Varpe Title: At-sea ...
Meeting Document : WG-EMM-16/P15 : Autor(es): S. Descamps, A. Tarroux, Y. Cherel, K. Delord, O.R. Godø, A. Kato, B.A. Krafft, S.-H. Lorentsen, Y. Ropert-Coudert, G. Skaret and Ø. Varpe
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Demersal finfish distribution, abundance and their biological characteristics in Statistical Subareas 48.1 (northern part) and 48.2 (2018–2020)
Abstract: The Republic of Chile completely revised its initial plan for a three-year project to ... -16 and WF-FSA-16, a revised proposal for a random, stratified trawl survey to be undertaken in ... , 2009). This will provide valuable information that will allow a comparison with the data collected by ...
Meeting Document : WG-SAM-17/18 : Autor(es): Delegation of Chile
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An approach to feedback management (FBM) of the krill fishery based on routine acoustic data collection and intermittent land-based predator studies
alternative approach for decades, but still lacks a plan that can be made operational within realistic cost ... acoustic monitoring of the prey field of nearby predator colonies feeds into a decision-making framework ... will bring the SG-ASAM work and our proposed FBM framework development into a similar timeline. While ... the proposed framework provides a clear way forward it will take several years to implement fully due ...
Meeting Document : SC-CAMLR-XXXVI/BG/20 : Autor(es): Delegations of Norway, China and Chile
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An update on the ageing of Antarctic toothfish, Dissostichus mawsoni, from East Antarctica and the Amundsen Sea
, experienced readers at the Australian Antarctic Division (AAD) read a subset of 40 otoliths from the New ... against the New Zealand reference ages showing a high level of precision (all IAPE < 5%, CV < 7 ... high (all IAPE < 2%, CV < 3%), confirming that a similar level of detail is revealed by each ... toothfish. Finally, a total of 730 otoliths from Antarctic toothfish which were collected by an Australian ...
Meeting Document : WG-FSA-17/15 : Autor(es): G. Nowara, B. Farmer, T. Barnes, P. Ziegler and D. Welsford
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Demersal finfish distribution, abundance and their biological characteristics in Statistical Subareas 48.1 (northern part) and 48.2 (2018–2020)
Abstract: The Republic of Chile completely revised its initial plan for a three-year project to ... -16 and WF-FSA-16, a revised proposal for a random, stratified trawl survey to be undertaken in ... , 2009). This will provide valuable information that will allow a comparison with the data collected by ...
Meeting Document : WG-FSA-17/28 : Autor(es): Delegation of Chile
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Exploration of CPUE standardisation variances in the Ross Sea (Subareas 88.1 and 88.2A South of 70°s) Antarctic toothfish (Dissostichus mawsoni) exploratory longline fishery
compared effort units including length of line (km), total number of hooks per line, and a combination of ... size. This confirms previous advice that research fishing is conducted with a high level of spatial and ... temporal overlap between vessels and gear types to allow for a meaningful standardisation of variables such ... as catch rates. To assist in future quality checking of data, we also recommend a new reporting field ...
Meeting Document : WG-SAM-2019/25 : Autor(es): D. Maschette, S. Wotherspoon and P. Ziegler