Resultados de la búsqueda
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Effects of different harvesting strategies on the stock of Antarctic icefish Champsocephalus gunnari around South Georgia
Abstract: The effects of a number of harvesting strategies on the Antarctic icefish ... Champsocephalus gunnari have been simulated for a period of 30 years. These were- diffierent levels of constant ... years after a good recruitment,- pulse fishing at an interval of 3 years with no fishing in between;- a ... of the incoming year class. An increaseof F, however, should not occur before 4 years after a good ...
Meeting Document : SC-CAMLR-VIII/BG/47 : Autor(es): Delegation of Federal Republic of Germany
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Preliminary report on the South Sandwich Island research cruise by RRS Discovery (DY098) in January-February 2019
research cruise consisted of a large scale acoustic survey, following track lines established during the ... midnight). The net samples included a Rectangular Midwater Trawl 8+1, bongo nets and a NEuston MOdified net ... backscatter attributed to krill using a swarms identification algorithm and a summary of the cetacean ... observations. Author(s): S. Fielding, C. Manno, G. Stowasser, B. Apeland, D. Ashurst, A. Ariza, M. Baines, L ...
Meeting Document : WG-EMM-2019/78 : Autor(es): S. Fielding, C. Manno, G. Stowasser, B. Apeland, D. Ashurst, A. Ariza, M. Baines, L. Cornwell, A.B. Hulbert, K.R. Jones-Williams, C. Lacey, E.G. Langan, E.D. McRae, F.A. Perry, S. Pinder, E.J. Rowlands, F. Saccomandi, C. Silverstri, M.E.S. Sørensen, A. Slomska, J. Jackson, E.J Murphy, M. Reichelt, S. Thorpe, P. Trathan and G. Tarling
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CEMP indices and the development of ecosystem assessments
CEMP indices and ecosystem assessments (Table 3 and paragraph 3.55). The following paper provides a ... starting point for such a review, as well as a conceptual approach which may provide a framework for a set ...
Meeting Document : WG-EMM-01/9 : Autor(es): Secretariat
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Focal areas for marine biodiversity protection in KwaZulu-Natal, South Africa. Marine Systematic Conservation Plan Analyses (SeaPLAN): Summary of Results 2011
requires a multi-scalar understanding of marine ecosystems and human activities. To address this challenge ... we developed a multi-resolution marine conservation planning approach and tested the method in the ... and human activities were collected for the inshore, continental shelf and offshore regions. A ... prioritisation process operated a selection from the coast to the offshore domain where more planning options are ...
Meeting Document : WS-MPA-11/12 : Autor(es): T. Livingstone, J. Harris, M. Lombard and E. Lagabrielle (South Africa)
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Beach debris survey – Main Bay, Bird Island, South Georgia 1999/2000
, South Georgia, a total of 408 items was collected. This represents a 92% increase on the total of 213 ... items collected in 1998/99, but is consistent with numbers in years prior to the 1998/99. A dramatic ... 168 items in 1999/2000 and a 40% increase in the number of items collected during summer reflect a ... constituent of all beach debris collected. This is a cause for concern, and suggests that CCAMLR needs to ...
Meeting Document : SC-CAMLR-XX/BG/02 : Autor(es): Delegation of the United Kingdom
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Potential effects of UV-B on krill – experimental and genetic studies
spring surface levels of ultraviolet-B, ultraviolet-A and photosynthetically active radiation, in order ... photosynthetically active radiation 3–5 times below surface irradiance caused krill to die within a week, while ... significantly accelerate mortality and lead to a drop in activity in all experiments. A drop in activity in ... krill exposed to ultraviolet-A wavelengths was evident without an increase in mortality. The protein ...
Meeting Document : WG-EMM-99/24 : Autor(es): S. Newman, S. Jarman, S. Nicol, D. Ritz, H. Marchant, N. Elliot and A. McMinn (Australia)
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REPORT ON THE ABANDONED GILLNET RETRIEVAL OPERATION CONDUCTED BY AUSTRALIA IN CCAMLR STATISTICAL DIVISION 58.4.3B (BANZARE BANK)
gillnets as a fishing method to target toothfish in the Convention area. Estimating the impact of IUU ... fishing is hampered by a lack of data on the design, deployment, catch and bycatch rates of gill nets ... . This paper describes a gillnet found abandoned by Australian vessel patrolling BANZARE Bank ... (Statistical Division 58.4.3b), and the toothfish and bycatch found when a section of the gillnet was retrieved ...
Meeting Document : CCAMLR-XXVIII/BG/22 : Autor(es): Delegation of Australia
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THE NEED FOR TRADE MEASURES IN CCAMLR
Abstract: Last year the Commission considered a proposal for a Conservation Measure concerning ... the adoption of a trade measure that will promote compliance with CCAMLR’s agreed upon rules to bring ... of such a measure is a positive step for CCAMLR. ASOC reviews in this paper the relevant ... international legal framework, and concludes that a measure such as the one proposed does not challenge in any ...
Meeting Document : CCAMLR-XXVII/BG/28 : Autor(es): Submitted by ASOC
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THE AUTOLINE SYSTEM – AN UPDATED DESCRIPTIVE REVIEW OF THE METHOD WITH RECOMMENDATIONS TO CLARIFY CCAMLR CONSERVATION MEASURES REGULATING LONGLINE FISHERIES WITHIN THE CONVENTION AREA
discussing circumstances and scenarios occurring with the method. A definition of the fundamental unit of ... gear (a ‘line’) for longlines is proposed for the purposes of regulation and management. Current ... changes are suggested clarify understanding of these measures. The paper includes a recommendation for a ... review of Annex 41-01/B (2007) governing research within exploratory fisheries by WG-FSA with a view to ...
Meeting Document : WG-FSA-08/60 : Autor(es): J.M. Fenaughty (New Zealand)
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Variability and predictability of Antarctic krill swarm structure
Abstract: Swarming is a fundamental part of the life of Euphausia superba, yet we still know very ... swarms across the Scotia Sea in January and February 2003 using a Simrad EK60 (38 kHz, 120 kHz ... ) echosounder, concurrent with net sampling. The acoustic data were analysed through applying a swarm ... and large and superswarms within the type 2 group. A minor group (swarm type 3) was also found ...
Meeting Document : WG-EMM-10/P10 : Autor(es): G.A.Tarling, T. Klevjer, S. Fielding, J. Watkins, A. Atkinson, E. Murphy, R. Korb, M. Whitehouse and R. Leaper