Resultados de la búsqueda
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Observation on interactions between marine mammals and krill mid-water trawl
Abstract: An observation on the interaction between marine mammal and krill midwater trawl was ... carried out onboard the Chinese krill fishing vessel Fu Rong Hai during the 2018/19 fishing season. The ... Arctocephalus gazella were observed around the vessel during the vessel fishing in the Subarea 48.3, no ... identified marine mammal was observed in the main body of trawl net. There was no marine mammal by-catch ...
Meeting Document : SC-CAMLR-38/BG/20 : Autor(es): Y. Ying, G. Fan, X. Zhao, J. Zhang, X. Wang and J. Zhu
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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 : Autor(es): S. Hill, J. Forcada, P. Trathan and C. Waluda (United Kingdom)
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Antarctic ecosystem management
for the management of the commercial exploitation of the marine living resources of the Southern ocean ... . More particularly, practical approaches are suggested for managing the exploitation of krill and fish ... in accordance with the objectives and requirements of Article II of the Convention for the ... models, are necessary for assessing any indirect impact that might arise through the exploitation of ...
Meeting Document : WG-DCH-84/03 : Autor(es): D.S. Butterworth (South Africa)
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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 : Autor(es): 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 : Autor(es): 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 : Autor(es): S. Parker and C. Jones
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An exploratory analysis of skate speciation using DNA identification techniques
Abstract: Two regions of the mitochondrial DNA, part of the cytochrome b gene and the control ... region, were sequenced in specimens of Antarctic skates from the Ross Sea (Pacific Ocean sector), the ... Australian Antarctic Territory (Indian Ocean sector), and around Elephant Island and the South Shetland ... Islands (Atlantic Ocean sector). Based on the DNA results, the species of Bathyraja referred to as B ...
Meeting Document : WG-FSA-04/27 : Autor(es): P.J. Smith and S.M. McVeagh (New Zealand)
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Propuesta para reforzar el seguimiento y control de transbordos
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 : Autor(es): Delegation of the USA
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Further krill-predator model calculations
Antarctic fur seal dataset. These calculations are extended here. The level of krill fishing intensity ... required to halve the fur seal population (γhalf) is between 0.08 and 0.09, slightly lower than that ... estimated previously. Tests of the estimation procedure indicate that γhalf estimates are likely to be ... biased upwards. The estimator is not robust to incorrect specification of the form of the functional ...
Meeting Document : WG-EMM-97/70 : Autor(es): Thomson, R.B., Butterworth, D.S.
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Data on krill, Euphausia superba Dana, consumption by coastal fishes in Division 58.4.2 (Kosmonavtov and Sodruzhestva Seas)
Abstract: Basing on the materials of complex study of the Kosmonavtov and Sodruzhestva Seas ... ecosystems, draft calculations were done to determine the E.superba consumption by near-bottom- pelagic ... fishes as its main consumers in the above areas. According to the data of trawlings in the depth range of ... 100-500 m in the area between 30 and 80°E, the total fish stock was evaluated to be 551.300 t ...
Meeting Document : SC-CAMLR-X/BG/11 : Autor(es): Delegation of USSR