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Pursuit of polynyas in the Antarctic peninsula area
influence biological activity. We pursued daily transition of coastal polynyas in the Antarctic Peninsula ... observations. A typical polynya existed off the tip of the Peninsula in 1987 and 1991. In the such years, sea ... and 1993. In the such years, polynyas did not existed. The typical polynya (nearly 500 x 200 km) in ... remarkably in several days. We speculated that annual variability of sea ice cover and consequently polynyas ...
Meeting Document : WG-EMM-97/69 : Автор(ы): Kimura, N., Shibazaki, K., Matsumura, S., Naganobu, M., Okada, Y.
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Distribution and abundance of larval fishes collected in the western Bransfield Strait region, 1986–87
samples collected in the western Bransfield Strait region during four RACER program cruises, December ... , and Trematomus scotti, numerically dominated the total catch. Two typically abundant species in this ... differences appear to be responsible for substantial shifts in species abundance relations between the two ... in hydrographic conditions may explain species dominance differences between the RACER samples and ...
Meeting Document : SC-CAMLR-VIII/BG/36 : Автор(ы): Delegation of USA
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Feasibility of trawl surveys to estimate abundance of juvenile toothfish in Subarea 88.1
conducting trawl surveys for juvenile toothfish in Subarea 88.1 (Ross Sea). Potential problems including a ... and previous research cruises. The major limitation on a trawl survey in the Ross Sea is ice cover. On ... average over the last three years, 63% of the seabed area from 0–600 m depth was not fishable in January ... % in 2002 to 89% in 2002. Less than 10% of the potential trawl survey area was fishable in all three ...
Meeting Document : WG-FSA-SAM-04/07 : Автор(ы): Wood, B.A., ODriscoll, R.L., Hanchet, S.M.
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Population assessment of Patagonian toothfish in the north of Subarea 48.4 – 2010 update
. eleginoides tagged and released in 2009/10, bringing the total to 1,547 in all seasons; There were 18 D ... . eleginoides tag recaptures in 2009/10, a total of 72 in all seasons; The length-frequency of 2009/10 captures ... . CASAL estimates a large recruitment event in early the early 1990s and faster growth rates than those ... currently assumed for the 48.3 population CASAL estimates of D. eleginoides population size in the North of ...
Meeting Document : WG-FSA-10/39 : Автор(ы): J. Roberts and D. Agnew (UK)
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Long-term study of the at-sea distribution of seabirds and marine mammals in the Scotia Sea, Antarctica
showed successive decreases in abundance. Five baleen whales where recorded: Humpback, Sei, Southern ... encounter rate in the five years (0.29 ± 1.57 whale/nautical mile), followed by Humpback whale (0.09 ± 0.54 ... ). Annual dissimilarity in abundance of both birds and cetaceans occurred in conjunction with changes in sea ... largest aggregations of all top predators (seabirds and cetaceans) were recorded mainly in two regions ...
Meeting Document : WG-EMM-14/06 Rev. 1 : Автор(ы): J.L. Orgeira, M. Alderete, Y.G. Jiménez and J.C. González (Argentina)
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Assessment models for Patagonian toothfish in research block 58.4.3a_1 of Division 58.4.3a, Elan Bank for the years 2005-2014
m) CASAL models for stock status assessments of Dissostichus eleginoides in the research block ... excluding the data from fish tagged in 2012. The likelihood profiles for tagged fish released in 2012 for ... ELAN_1 model reflected a large number of recaptures of the tags released concentrated in the western area ... of research block. This is why the removal of 2012 tag release data boosted the MPD estimate of B0 in ...
Meeting Document : WG-SAM-15/24 : Автор(ы): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)
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Research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in Division 58.4.1
Abstract: The current season (2015/16) is the first one of the second three-season research in ... data-poor fisheries. In the present report, the next season research plan in Division 58.4.1 was made ... . population(s) in data- poor exploratory fisheries. During the second three-season research, we will continue ... current research style in the current research blocks for the next season research with the sample sizes ...
Meeting Document : WG-SAM-16/04 : Автор(ы): Delegation of Japan
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Research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in Division 58.4.2
Abstract: The current season (2015/16) is the first one of the second three-season research in ... data-poor fisheries. In the present report, the next season research plan in Division 58.4.2 was made ... . population(s) in data- poor exploratory fisheries. During the second three-season research, we will continue ... current research style in the current research blocks for the next research with the sample sizes ...
Meeting Document : WG-SAM-16/05 : Автор(ы): Delegation of Japan
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Mesozooplankton distribution and community structure in the Pacific and Atlantic sectors of the Southern Ocean during austral summer 2017/18: a pilot study conducted from Ukrainian longliners
Abstract: Preliminary results of the pilot study of the mesozooplankton in the region between the ... Ross and Scotia Seas during November 2017 – April 2018 are presented. In total, 53 zooplankton samples ... were collected in the top 100 m water layer using vertical tows of the 0.1 m-2 Juday net from four ... emphasized the unique opportunity to investigate mesozooplankton dynamics in the regions traditionally not ...
Meeting Document : WG-FSA-18/19 : Автор(ы): E.A. Pakhomov, L.K. Pshenichnov, A. Krot, V. Paramonov, I. Slypkо and P. Zabroda
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Ukrainian complex marine expeditions in the Southern Ocean
expeditions last conducted in 2001 were resumed aboard Ukrainian fishing vessel More Sodruzhestva which ... carries out regular fishing activities in the CAMLR Convention Area. The vessel equipped with modern ... measuring systems, and this is one of the most prominent examples of public-private partnership in Antarctic ... research. In particular, during the marine expedition, continuous monitoring of the physical and chemical ...
Meeting Document : WG-EMM-2019/62 : Автор(ы): E. Dykyi, V. Komorin and A. Fedchuk
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