Resultados de la búsqueda
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Acoustic manual for the krill synoptic survey in 2019
Abstract: The previously presented document at the 2018 ASAM WG meeting (ASAM-18-07) described a ... design and plans for a synoptic krill acoustic survey in CCAMLR area 48 in 2019. The survey involves the ... 2018 ASAM meeting, and describes acoustic procedures, acoustic reporting- analysis procedures and ... : Acoustic manual for the krill synoptic survey in 2019 Microsoft Word File: emm-18-12.docx Approval ...
Meeting Document : WG-EMM-18/12 : Autor(es): G. Macaulay, G. Skaret, T. Knutsen, O.A. Bergstad and B.A. Krafft
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Report of the Workshop for the International Coordinated Survey in conjunction with CCAMLR-2000 Survey
Abstract: Vessels from Japan, Republic of Korea, Peru and the USA had participated in the conduct ... of five acoustic/oceanographic surveys from late December 1999 and to early March 2000 in conjunction ... a change in the demographic structure of the population. The smaller size modes disappear and krill ... are more sexually mature later in the summer. If the lowest estimate is treated as the result of ...
Meeting Document : WG-EMM-01/68 : Autor(es): Delegations of Japan, Rep. of Korea, USA and Peru
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Monitoring variability and change in the plankton communities of the Scotia Sea through Continuous Plankton Recorder surveys
Abstract: The northern regions of the Scotia Sea demonstrate notable variability in environmental ... conditions, particularly in the location of the Polar Front. This has a strong influence on patterns of ... has been monitored through conducting a series of Continuous Plankton Recorder (CPR) tows in the South ... abundance being far more variable than species composition within and between tows. In general ...
Meeting Document : WG-EMM-16/29 : Autor(es): G.A. Tarling, M.Z. Wootton, D.G. Johns, T.D. Jonas, E.J. Murphy and P. Ward
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Scientific justification for a marine protected area designation around the Balleny Islands to protect ecosystem structure and function in the Ross Sea region, Antarctica: progress report
Abstract: In 2000, the New Zealand delegation to CCAMLR proposed the designation of an Antarctic ... can be aligned with both the CCAMLR ecosystem-wide conservation objectives and the values found in ... Article 3 of Annex V to the Protocol on Environmental Protection to the Antarctic Treaty. This paper’s ... includes the only known habitat in the region for juvenile toothfish, and perhaps also for early ...
Meeting Document : SC-CAMLR-XXIV/BG/25 : Autor(es): Delegation of New Zealand
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The fishery for Patagonotothen brevicauda guntheri in CCAMLR Subarea 48.3
Paper Title: The fishery for Patagonotothen brevicauda guntheri in CCAMLR Subarea 48.3 Abstract ... brevicauda guntheri were five times greater in the South Georgia area than at Shag Rocks. Previous survey ... the past ten years there has been a fishery for Patagonotothen brevicauda guntheri in CCAMLR Subarea ... the target species. P.b. guntheri are small fish and rarely grow larger than 20 cm (Figure 1). In ... 21-30 ANI 54 38 15 0 7 0 0 nee 11-20 ANI 54 41 6 4 0 2 21-31 ANI 54 41 178 0 96 0 53 Table 5 ... 350 32 30 - 28 - 26 - 24 - 22 - 20 - 18 - 16 - 14 - 12 - 10 - 8 - 6 - 4 - 2 - 0 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 275–283 : Autor(es): Everson, I. and C. Mitchell
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Preliminary assessment of mackerel icefish Champsocephalus gunnari in Subarea 48.3 based on the 2017 groundfish survey
tonnes) within Statistical Subarea 48.3. Projections for the 2017/18 and 2018/19 seasons applying the ... 2018/19. Author(s): T. Earl Title: Preliminary assessment of mackerel icefish Champsocephalus gunnari ... in Subarea 48.3 based on the 2017 groundfish survey Approval: Approved Secretariat Workflow Status ...
Meeting Document : WG-FSA-17/47 : Autor(es): T. Earl
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Preliminary results from the International Synoptic Krill Survey in Area 48, 2019
stations. Acoustic transects and trawling were carried out as per survey procedures developed in 2018 ... Abstract: Preliminary results from the International Synoptic Krill Survey in Area 48, 2019, are ... presented. Of the six vessels that participated in the survey, this report provides methods and preliminary ... , which were based on the methods and procedures used in the CCAMLR 2000 krill acoustic survey ...
Meeting Document : WG-EMM-2019/47 : Autor(es): G. Macaulay, G. Skaret, T. Knutsen, O.A. Bergstad, B. Krafft, S. Fielding, S.G. Choi, S. Chung, K. Demianenko, V. Podhornyi, K. Vishnyakova, L. Pshenichnov, A. Chuklin, A. Shishman and M.J. Cox
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Modelling the predator–prey interactions of krill, baleen whales and seals in the Antarctic ecosystem
Abstract: The history of human harvests of seals, whales, fish and krill in the Antarctic is ... krill surplus in the mid 20th Century is described, and the information on population and trend levels ... ) species. The model commences in 1780 (the onset of fur seal harvests) and distinguishes the Atlantic ... /Indian and Pacific sectors in view of the much larger past harvests in former. A reference case and five ...
Meeting Document : WG-EMM-05/34 : Autor(es): M. Mori and D.S. Butterworth (South Africa)
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A RISK ASSESSMENT TO ADVISE ON STRATEGIES FOR SUBDIVIDING A PRECAUTIONARY CATCH LIMIT AMONG SMALL-SCALE MANAGEMENT UNITS DURING STAGE 1 OF THE STAGED DEVELOPMENT OF THE KRILL FISHERY IN SUBAREAS 48.1, 48.2, AND 48.3.
the precautionary krill catch limit among SSMUs in Area 48. Our methodological approach follows ... directly from specifications made by the WG-SAM and the WG-EMM. We predict that the tradeoffs inherent in ... operate in pelagic SSMUs. Up to harvest rates of 0.5 x γ, this subdivision is unlikely to reduce predator ... populations to 75% or less of the abundances that might occur in the absence of fishing; the risks of such ...
Meeting Document : WG-EMM-08/30 : Autor(es): G.M. Watters, J.T. Hinke (USA) and S. Hill (United Kingdom)
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Commercial fishing vessels as research vessels in the Antarctic – requirements and solutions exemplified with a new vessel
Paper Title: Commercial fishing vessels as research vessels in the Antarctic – requirements and ... in the ecosystems of the Antarctic region require a precautionary approach with respect to the human ... use of these ecosystems. In particular, resource harvesting requires enough basic knowledge, as well ... the potential of using commercial fishing vessels to bridge the gap in research vessel capacity. The ... dramatically over its 30- to 40-year history. The present annual catch in the Atlantic sector of the Southern ... given sub- stantial attention in recent years (ICES, 2007; Abe et al., 2011; Skaret et al., 2012). Much ... scientific use when the vessel is new. In general, space for a 20 ft container laboratory van would be ... operations is increasing (ICES, 2007). Norway has, in recent years, run dedicated surveys using krill ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 11–17 : Autor(es): Godø, O.R., C. Reiss, V. Siegel, J.L. Watkins