Search results
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Research plan for toothfish in Divisions 58.4.4a and 58.4.4b by Shinsei Maru No. 3 in 2012/13
Abstract: A tagging survey in SSRUs B and C in Division 58.4.4 a & b was conducted in the ... 2011/12 fishing season with the aims of providing the data required for assessments of the population ... structure, size, movement and growth of Dissostichus spp. in the centred area of Division 58.4.4 a & b ... . An approximate stock biomass level of Dissostichus spp. in the survey area was tentatively estimated ...
Meeting Document : WG-SAM-12/17 : Author(s): Delegation of Japan
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Results of scientific observation in Antarctic krill fishery in 2010/11: I. state of observer deployment and data collection
Abstract: We analyzed the 2010/11 krill observer data to confirm the outcome of recent revisions ... of krill observation scheme. This paper summarizes the status of observer deployment, sampling ... protocol and data collection in krill fisheries in 2010/11. All the 12 krill fishing vessels that operated ... in 2010/11 deployed scientific observers in accordance with the agreed systematic coverage. The ...
Meeting Document : WG-EMM-12/65 : Author(s): M. Kiyota and T. Okuda (Japan)
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Does large-scale ocean circulation structure life history connectivity in Antarctic toothfish (Dissostichus mawsoni)?
(Dissostichus mawsoni) in the Southeast Pacific Basin (SPB) and Ross Sea, with a life history structured by the ... environmental heterogeneity, yet the chemistry in otolith nuclei, deposited during early life, showed no ... differences. Age data showed only adult fish in catches on the Pacific-Antarctic Ridge in the SPB; and ... structuring of life stages consistent with transport pathways from the northern Ross Sea. Lagrangian particle ...
Meeting Document : WG-FSA-12/P02 : Author(s): J. Ashford, M. Dinniman, C. Brooks, A. Andrews, E. Hofmann, G. Cailliet, C. Jones and N. Ramanna
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Risk maps for Antarctic krill under projected Southern Ocean acidification
Abstract: The embryonic development of Antarctic krill (Euphausia superba) is sensitive to ... . Exposure to elevated CO 2 during the first 3 days of embryonic development significantly retards subsequent ... development even if the embryos are transferred to seawater with current levels of CO 2. Krill embryos appear ... more vulnerable to ocean acidification than other pelagic crustaceans such as copepods. p CO 2 in the ...
Meeting Document : WG-EMM-14/P06 : Author(s): S. Kawaguchi, A. Ishida, R. King, B. Raymond, N. Waller, A. Constable, S. Nicol, M. Wakit and A. Ishimatsu
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Revised Management Plan for Cape Shirreff ASPA 149
through the Antarctic Treaty. The Management Plan for Cape Shirreff has been revised as part of the five ... -yearly review process required by the Madrid Protocol. The management plan has been updated with recent ... data and scientific publications and on the basis of detailed Inspection Checklists completed by United ... States and Chilean personnel who have recently been working within the Area. Management provisions have ...
Meeting Document : WG-EMM-10/21 : Author(s): P.A. Penhale (USA) and V. Vallejos Marchant (Chile)
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Testing early life connectivity using otolith chemistry and particle-tracking simulations
Abstract: We measured the otolith chemistry of adult Scotia Sea icefish (Chaenocephalus aceratus ... ), a species with a long pelagic larval phase, along the Antarctic Circumpolar Current (ACC) and ... compared the chemistry with simulated particle transport using a circulation model. Material laid down in ... otolith nuclei during early life showed strong heterogeneity between the Antarctic Peninsula and South ...
Meeting Document : WG-FSA-10/P02 : Author(s): J. Ashford, M. La Mesa, B.A. Fach, C. Jones and I. Everson
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2019 Ross Sea shelf survey results and notification for research in 2020
Abstract: The time series of relative abundance and age structure from the Ross Sea shelf survey ... is an important input to the Ross Sea stock assessment. The annual survey has been conducted since ... 2012, with a revised proposal presented in 2017 for five years (2018–2022). The objectives of the ... survey included monitoring the abundance and age structure of sub-adult (≤ 110 cm TL) toothfish in the ...
Meeting Document : WG-SAM-2019/03 : Author(s): S. Parker and C. Jones
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OPTIONS FOR USING UNREPLICATED ECOSYSTEM MONITORING DATA TO DETECT IMPACTS
Abstract: The CCAMLR ecosystem monitoring programme (CEMP) primarily indicates the short term ... indicate population size, which is the parameter that many conservation objectives attempt to control ... either assess the expected probability of an observed value in an unimpacted system, or they assess the ... frequency of values below a fixed reference point. The former approach allows inference criteria based on ...
Meeting Document : WG-EMM-09/26 : Author(s): S. Hill, J. Forcada, P. Trathan and C. Waluda (United Kingdom)
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Beach litter survey Signy Island, South Orkney Islands, 1992/93
Abstract: A beach litter survey was carried out on Signy Island, South Orkney Islands during the ... 1992/93 austral summer. Similar surveys were carried out during the 1990/91 and 1991/92 summers. Debris ... . Comparison with the 1990/91 and 1991/92 litter surveys showed a dramatic drop in both the weight of debris ... and the total number of items recovered. For example, at Foca Cove, the total weight of debris ...
Meeting Document : CCAMLR-XII/BG/07 : Author(s): Delegation of United Kingdom
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Proposal to strengthen monitoring and control of transhipments
activities that occur inside the Convention Area. However, as noted by SCIC in 2014, it is not clear whether ... the current measure allows for transhipment by or with vessels flagged to non-Contracting Parties (NCP ... ), nor is it clear whether transhipment constitutes fishing for the purposes of Conservation Measure 10 ... -02. The delegation of the United States proposes to amend CCAMLR Conservation Measures 10-02 and 10 ...
Meeting Document : CCAMLR-XXXIV/27 : Author(s): Delegation of the USA