Resultados de la búsqueda
-
Length-at-age juvenile Patagonian toothfish Dissostichus eleginoides
Abstract: The fishery for Patagonian toothfish is one of the most valuable in the CCAMLR Area ... . Age based models are used to assess the status of the stocks of this species. Although age can be ... estimated using otoliths it has proven difficult for these to be validated. During a recent trawl survey the ... length density of juvenile toothfish in the catches had a clearly defined polymodal distribution. The age ...
Meeting Document : WG-FSA-01/16 : Autor(es): J. Ashford (USA), I. Everson (UK), C. Jones and S. Bobko (USA)
-
ANTARCTIC KRILL AND CLIMATE CHANGE
on the impact of climate change and increasing fisheries on Antarctic krill and Antarctic ecosystems ... , and possible repercussions for resource management. The workshop was organised by the Institute of ... Marine Resources and Ecosystem Studies (IMARES) in the Netherlands, and funded by the European Commission ... and the Dutch government. The scientific evaluation focused on major agents of climate change, such as ...
Meeting Document : WG-EMM-11/16 : Autor(es): H. Flores (Netherlands), A.S. Atkinson (UK), E. Bravo Rebolledo (Netherlands), V. Cirelli (Argentina), J. Cuzin-Roudy (France), S. Fielding (UK), J.A. van Franeker (Netherlands), J.J. Groeneveld (Netherlands), M. Haraldsson (Sweden), S. Kawaguchi (Australia), B.A. Krafft (Norway), A. Lombana (USA), E. Marschoff (Argentina), B. Meyer (Germany), G. Milinevsky (Ukraine), S. Nicol (Australia), E.A. Pakhomov (Canada), A.P. Van de Putte (Belgium), C. Reiss (USA), E. Rombolá (Argentina), K. Schmidt (UK
-
Foraging areas of black-browed and grey-headed albatrosses breeding on Macquarie Island in relation to marine protected areas
this purpose. 2. We assessed the effectiveness of a network of MPAs around Macquarie Island in the ... Southern Ocean by examining the foraging areas of black-browed and grey-headed albatrosses that were ... breeding on the Island. 3. During late incubation and brood periods over 90% of time spent foraging by ... black-browed albatrosses Thalassarche melanophrys was contained within MPAs, principally the Economic ...
Meeting Document : WG-FSA-04/49 : Autor(es): A. Terauds, R. Gales, G.B. Baker and R. Alderman (Australia)
-
Identifying marine protected areas (MPAs) in data-poor regions to conserve biodiversity and to monitor ecosystem change: an Antarctic case study
Abstract: The World Summit on Sustainable Development implementation plan requires, by 2012, a ... representative system of marine protected areas (RSMPA) for the purposes of long-term conservation of marine ... inadvertant failure while giving science the time and resources to provide better knowledge. A staged process ... is needed for identifying areas in data-poor regions that would enable the objectives to be achieved ...
Meeting Document : WS-MPA-11/05 : Autor(es): A.J. Constable, B. Raymond, S. Doust, D. Welsford (Australia), P. Koubbi (France) and A.L. Post (Australia)
-
Annual variation in breeding biology of gentoo penguins, (Pygoscelis papua) at Bird Island, South Georgia
Abstract: The breeding biology of the gentoo penguin, Pygoscelis papua, was studied over a three ... later in 1987, when the breeding population decreased markedly. Factors involved in the timing of ... 14.5 days or less. The incubation period was 35 days and the laying interval, between the two eggs, 3.3 ... supply and chick growth. Chicks left the colony for the first time between 75 and 85 days of age. The ...
Meeting Document : WG-CEMP-90/38 : Autor(es): T.D. Williams (United Kingdom)
-
Assessment models for Patagonian toothfish in research block 5843a_1 of Division 58.4.3a, Elan Bank
status assessments of Dissostichus eleginoides in research block 5843a_1 in Division 58.4.3a for the ... years 2004/05 to 2012/13 following the recommendation during the last WG-SAM meeting. The two models are ... generally based on those with the same names in WG-SAM-14/17 as follows: 1) R.0.1 model without tagging ... comprised of two fisheries split by depths of 1 200 m as the model in WG-SAM-14/17. Number of longlines was ...
Meeting Document : WG-FSA-14/22 : Autor(es): K. Taki (Japan)
-
Key considerations for planning a large-scale krill survey
Abstract: Article II of the Convention requires the Commission to maintain harvested populations ... management (FBM) approaches for the krill stock in subareas 48.1 to 48.4. These approaches include some which ... (subarea or less). However, periodic large-scale surveys (comparable to the CCAMLR 2000 synoptic survey ... ) might also play a role in the future management of the krill fishery. Such surveys provide an indication ...
Meeting Document : WG-EMM-15/27 : Autor(es): S. Hill, J. Watkins (United Kingdom), O.R. Godø (Norway), S. Kawaguchi (Australia), D. Kinzey, C. Reiss (USA), V. Siegel (Germany), P. Trathan (United Kingdom) and G. Watters (USA)
-
At-sea distribution and prey selection of Antarctic petrels and commercial fisheries
like seabirds. In the Southern Ocean, there is an extensive fishery for Antarctic krill Euphausia ... this context, it is important to consider not only predators breeding near the fishing grounds but also ... the ones breeding far away and that disperse during the non- overlap between the distribution of the ... Antarctic krill fisheries and the distribution of a krill dependent seabird, the Antarctic petrel ...
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
-
Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Signy Island, South Orkney Islands, 2005/2006
Abstract: The results of the eighth annual survey of entanglement of Antarctic fur seals at Signy ... Island, South Orkney Islands are reported for the 2005/2006 summer season. There was 1 sighting of a seal ... at Bird Island, South Georgia in 2005/06. In the case of Bird Island, data indicated that the number ... of entangled fur seals had decreased by 75% compared to the previous year, this being the lowest ...
Meeting Document : SC-CAMLR-XXV/BG/15 : Autor(es): Delegation of the United Kingdom
-
A conceptual model of Japanese krill fishery
Abstract: The behaviour patterns of Japanese krill fishery vessels in Area 48 were analysed using ... questionnaires on the reasons why the vessel changed their fishing grounds, which were sent out to of the ... Japanese fishing vessel since the 1989/90 fishing season. Among many reasons for changing fishing grounds ... , krill density, krill, size, ice condition, transshipment, and salp-by catch accounted for 95.6% of the ...
Meeting Document : WG-EMM-05/30 : Autor(es): S. Kawaguchi, S. Nicol (Australia), K. Taki and M. Naganobu (Japan)