Résultats de la recherche
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Proportional recruitment indices of Antarctic krill from Japanese fisheries data in Subareas 48.1, 48.2 and 48.3 during 1980 through 1997
Siegel et al. (1 998)039;s values. This may be due to the net selectivity and/or incomplete coverage of ... R1 and R2 in Subarea 48.1 generally showed similar trends to Siegel et al. (1 998)039;s values ... operation periods and occasional small sample size, interpretation of it039;s pattern in this Subarea ... should be dealt very carefully. In Subarea 48.3, R1 values showed the evidence of recruitments in two ...
Meeting Document : WG-EMM-98/33 : Auteur(s): S. Kawaguchi, T. Ichii and M. Naganobu (Japan)
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A revision of yield and catch controls for managing the mackerel icefish (Champsocephalus gunnari) fishery in the vicinity of Heard Island and McDonald Islands
Bank. The paper reviews current catch controls and suggests that some consideration needs to be given ... Plateau population using the short-term assessment are 1150 tonnes for 2000/01 and 1000 tonnes for 2001/02 ... to ensure spawning aggregations are not disrupted. Also, some consideration may need to be given to ... altering the minimum size regulations at CCAMLR in 2001 to account for the potential for unassessed cohorts ...
Meeting Document : WG-FSA-00/41 : Auteur(s): A. Constable, R. Williams, T. Lamb and E. van Wijk (Australia)
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RAPID WARMING OF THE OCEAN AROUND SOUTH GEORGIA,SOUTHERN OCEAN, DURING THE 20TH CENTURY: FORCINGS, CHARACTERISTICS AND IMPLICATIONS FOR LOWER TROPHIC LEVELS
century, with differential warming between summer and winter months and an indication that late 20th ... changes in heat fluxes associated with the SAM. In addition, we consider the implications that long-term ... 20th century but there are few locations with data before the 1950s. In addition, assessments of change ... in this region are hampered by the strong seasonal bias in sampling, with the vast majority of data ...
Meeting Document : WG-EMM-08/P03 : Auteur(s): M.J. Whitehouse, M.P. Meredith, P. Rothery, A. Atkinson, P. Ward and R.E. Korb
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Estimating the biodiversity of the sub-Antarctic Indian part for ecoregionalisation: Part I. Pelagic realm of CCAMLR areas 58.5.1 and 58.6
be low in the north, consistent with the limit of the main distribution of the species. The quasi ... (3) a mixed approach, we called “ecoregionalisation”, which includes taxonomic, ecological and ... physiognomic data. The mixed approach is a relatively new method and is demonstrated on mesopelagic fish here ... . It will be also applied to pelagic fish and zooplankton as work progresses. The Kerguelen Plateau ...
Meeting Document : WS-MPA-11/10 : Auteur(s): P. Koubbi (France), P.A. Hulley (South Africa), B. Raymond (Australia), F. Penot, S. Gasparini, J.P. Labat, P. Pruvost (France), S. Mormède (New Zealand), J.O. Irisson, G. Duhamel and P. Mayzaud (France)
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Summary of the seabird and marine mammal observations during observed toothfish (Dissostichus spp.) longline fishing operations in CCAMLR Subareas 88.1 and 88.2
operations that targeted toothfish (Dissostichus spp.) in 2001–03 in Sub-areas 88.1 and 88.2. The ... identification of some species is difficult and some of the species that were reported from outside their known ... capense), Antarctic petrels (Thalassoica antarctica), Wilson039;s storm petrels (Oceanities oceanicus ... appeared to be generally uninterested in the line setting and were more likely to be well astern of the ...
Meeting Document : WG-FSA-04/42 : Auteur(s): S.J. Baird (New Zealand)
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Importance of myctophid fish distributions for formation of foraging areas of chinstrap penguins and Antarctic fur seals at Seal Island
day so that only shallow diving was required to catch krill even in the day time; (2) krill tend to be ... larger in size; and (3) Myctophid fish occurred within the predators039; maximum diving range at night ... . Considering that overnight foraging was always made in the offshore/slope regions, (3) is regarded as the most ... ., Kawaguchi, S., Jansen, J.K., Takao, T., Meyer, W.R., Baba, N., Hiruki, L.M., Boveng, P., Cameron, M.F ...
Meeting Document : WG-EMM-95/87 : Auteur(s): Bengtson, J.L., Kawaguchi, S., Jansen, J.K., Takao, T., Meyer, W.R., Baba, N., Hiruki, L.M., Boveng, P., Cameron, M.F., Ogishima, T., Ichii, T., Naganobu, M.
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Spatial patterns of temporal relationships in the Southern Ocean
modelled variables and show that this covariance in time between the mixed layer depth (MLD), sea surface ... limitation and nutrient limitation can be sharp and may be associated with the main hydrographic fronts (e.g ... Abstract: Phytoplankton production during the austral summer in the Southern Ocean is known to be ... time-variable patterns that are hard to explain. We analysed covariance between satellite-detected and ...
Meeting Document : WS-BSO-07/5 : Auteur(s): M. Kahru and B.G. Mitchell (USA)
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Preliminary results of the experiments on the krill transport study in the South Orkney area (April 1992)
dublicates of perimeter were made. Control hauls with midwater trawl were made on the regular basis. The ... average estimates of krill density were obtained by 15-miles intercepts of the perimeter, along with mean ... researches show that the fishing aggregation stability depends essentially on the heterogeneity of the ... current039;s field. The researches were carried out by R/V "Dmitriy Stefanov" owned by PPO ...
Meeting Document : WG-CEMP-92/34 : Auteur(s): L.G. Maklygin, V.N. Shnar, A.P. Malyshko (Russian Federation) and A.G. Shepelev (Ukraine)
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The krill distribution in waters around the South Shetland Islands: Preliminary results from an acoustic survey conducted by a Chinese krill fishing vessel in December 2013
. With this experience, more scientific data may be collected by the Chinese krill fishing vessels in the ... was conducted by the Chinese krill fishing vessel ‘FURONGHAI039; in waters around the South Shetland ... Islands. Krill was found in most part of the survey area. The mean Sv of krill swarm tend to be higher in ... strait. The majority of the krill swarms were found in the upper 100 m with a thickness less than 30 m ...
Meeting Document : WG-EMM-14/47 : Auteur(s): X. Wang, X. Zhao, G. Qi, T. Zuo, J. Zhu, J. Zhang and X. Li (People’s Republic of China)
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Practical options for developing feedback management for the krill fishery in Subarea 48.2
regular acoustic surveys by krill fishing vessels, coupled with ‘health checks’ that describe the status ... that the most probable source of information allowing expansion to Stage 2 would be the provision of ... Abstract: During 2013 WG-EMM agreed to form two inter-sessional task groups to progress work that ... reviewing the state of ecological knowledge for Subarea 48.2, we conclude that movement towards Stage 2 (in ...
Meeting Document : WG-EMM-14/04 : Auteur(s): P. Trathan (United Kingdom), M. Santos (Argentina) and O.R. Godø (Norway)