Search results
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Research plan for the exploratory longline fishery for Dissostichus spp. in 2014/15 in Division 58.4.3a
coming years in order to achieve a robust stock assessment that would provide advice on a catch limit ... according to CCAMLR decision rules. This paper aims to present a research plan for 2014/2015 that takes into ... improve the estimation of current biomass. An update of the assessment of Dissostichus eleginoides using a ... CASAL model and a simple Petersen biomass estimate derived from tagging data are presented. The CASAL ...
Meeting Document : WG-SAM-14/17 : Author(s): Delegation of France
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Preliminary assessment of toothfish in Subarea 48.3
due to a combination of a strong 2001 cohort and a change in selectivity for the commercial fleet, but ... recruitment suggests a long-term yield of 3 200 t. If year class strengths have been low since 1994 and ... scenario is highly unlikely as survey data from 2010 and 2011 suggest a strong 2007 cohort, and survey data ... from 2004 to 2008 suggest a strong 2001 cohort. Model projections, evidence of cohort strength from the ...
Meeting Document : WG-FSA-11/33 Rev. 1 : Author(s): T. Peatman, R.E. Mitchell, G. Parkes and D.J. Agnew (United Kingdom)
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Report on the activities of the Scientific Committee on Antarctic Research (SCAR) 2006/07
directly to CCAMLR or are of potential interest to CCAMLR. This includes a report on progress with the new ... Workshop with the provision of data and expertise. The SCAR/SCOR Oceanography Expert Group convened a ... meeting to develop the Southern Ocean Observing System. SCAR commissioned a report of the State of the ... Antarctic and Southern Ocean Climate Systems. SCAR is also a co-sponsor of both Southern Ocean GLOBEC and a ...
Meeting Document : CCAMLR-XXVI/BG/36 : Author(s): SCAR Observer to CCAMLR(G. Hosie, Australia)
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Trawl survey of the Patagonian toothfish (Dissostichus eleginoides) resource off the Prince Edward Islands
Abstract: A bottom trawl survey was conducted in the northern half of the South African EEZ ... possible to design a statistically rigid survey, consequently this first survey is regarded as a pilot ... bottom trawl surveys extremely difficult. A total of 55 trawls were completed and these show a ... designed to yield a biomass estimate, a first, crude for Patagonian toothfish estimate is presented. 51 ...
Meeting Document : WG-FSA-01/72 : Author(s): R.W. Leslie and B.P. Watkins (South Africa)
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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 : Author(s): Delegation of Federal Republic of Germany
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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 : Author(s): S. Newman, S. Jarman, S. Nicol, D. Ritz, H. Marchant, N. Elliot and A. McMinn (Australia)
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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 : Author(s): T. Livingstone, J. Harris, M. Lombard and E. Lagabrielle (South Africa)
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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 : Author(s): Secretariat
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Scientific requirements for an orderly development of the krill fishery
survey. These were used by the Scientific Committee to recommend to the Commission a revised ... supported the large increase in the precautionary catch limit, such a large increase required the inclusion ... required to be established immediately, however at a minimum there needs to be mechanisms developed to ... establish a catch limit before fishing is prosecuted in these areas. (ii) Establish small-scale management ...
Meeting Document : WG-EMM-07/23 : Author(s): A. Constable, G. Slocum and S. Nicol (Australia)
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Summary of the toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2017/18
Abstract: The Amundsen Sea region toothfish fishery has been operating since 2003. In 2015, a ... biological characterisation of the fishery shows a truncation of the right-hand limb of the age distribution ... toothfish in the ASR be made a priority to develop annual age-length keys and age frequencies. We further ... survival and tag detection by individual vessels) can be applied: 882H: 177 t based on a one-year Chapman ...
Meeting Document : WG-FSA-18/36 : Author(s): S. Mormede and S. Parker