Search results
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An integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) in Division 58.5.2 using CASAL
-at-length data. The estimated long-term yield was 2500 tonnes with depletion probability of 0.081 and ... Division 58.5.2. It updates the model used at WG-FSA in 2006 using data from the 2007 season as well as ... of the coefficient of variation (CV) for length given age, (ii) use of non-informative priors for ... ground, and (v) the use of an improved method of determining effective sample size for commercial catch ...
Meeting Document : WG-FSA-07/53 Rev. 1 : Author(s): S.G. Candy and A.J. Constable (Australia)
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Scientific background document in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica) – Version 2018 – Reflection on the recommendations by WG-EMM-17 and SC-CAMLR-XXXVI
raised at WG-EMM-17 and SC-CAMLR-XXXVI (SC-CAMLR-XXXVI, Annex 6, §§ 5.1-5.14). The implementation of ... recommendations and questions raised by WG-EMM-17 and SC-CAMLR-XXXVI was already presented at the Workshop of ... Spatial Management (Cambridge, UK, 2 to 6 July 2018), where the great amount of work was acknowledge and ... the updates were welcomed. With this document, the Delegation of Germany would also like to inform the ...
Meeting Document : SC-CAMLR-XXXVII/BG/15 : Author(s): Delegation of Germany
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Distribution and biology of grey notothen (Lepidonotothen squamifrons) around South Georgia and Shag Rocks (Southern Ocean) CCAMLR Subarea 48.3.
during groundfish surveys at South Georgia and Shag Rocks from 1986 to 2012 were analysed to investigate ... east of Shag Rocks and the west of South Georgia. Reliable biomass estimates were not possible due to ... recognisable cohort progression and a trend of increasing size over time indicating a potential recovery of the ... stock. Mean length at first maturity for males and females (37-38cm) was very similar to that described ...
Meeting Document : WG-FSA-12/34 : Author(s): S. Gregory, J. Brown and M. Belchier (United Kingdom)
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Has Notothenia rossii around Elephant Island and the lower South Shetland Islands (Subarea 48.1) recovered from exploitation some 30 years ago?
in the first half of the 1970’s and at Elephant Island in 1979/80. The closure of the fishery for ... more or less evenly distributed over the area at the time of the survey. This assumption is violated in ... this species was one of the first conservation measures the ‘Commission for the Conservation of ... Division or part of it, is commonly estimated by targeting a number of species including N. rossii ...
Meeting Document : WG-FSA-12/19 : Author(s): K.-H. Kock (Germany) and C.D. Jones (USA)
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Review of activities in monitoring marine debris in the CAMLR Convention Area
colonies of grey-headed albatrosses and black-browed albatrosses at Bird Island has increased recently, and ... -fishing items such as packaging and wood remain the most common type of debris items found in beach ... found in beach surveys with closed bands found at Bird Island (1) and King George Island (3), despite ... Conservation Measure 26-01 requiring packaging bands to be cut up into 30 cm pieces. The amount of debris in ...
Meeting Document : WG-IMAF-11/04 Rev. 1 : Author(s): Secretariat
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A two-fleet ASPM assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
updated to take account of further catch, GLM standardised CPUE and catch-at- length information that has ... Abstract: The ASPM assessment of the Prince Edward Islands toothfish resource by Brandão and ... feature which has important implications for the status of the population. The possible extent of cetacean ... of various constant annual catches for the two-fleet model are computed. Although higher sustainable ...
Meeting Document : WG-FSA-05/58 : Author(s): A. Brandão and D.S. Butterworth (South Africa)
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Fishing with pots in the Antarctic region (CCAMLR Statistical Subareas 48.1, 48.2 and 88.3)
each location where industrial bottom longlines were used, six pots were lowered, three at each end of ... the fishing gear, with a distance of approximately 90 m between them. The pots were lowered at a depth ... Abstract: Results of the February-March 1998 exploratory and experimental fishing operations ... , with the purpose of determining the presence of Dissostichus spp. in Subareas 48.1, 48.2 and 88.3. In ...
Meeting Document : WG-FSA-98/20
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Results of a scientific electronic monitoring pilot study on the FV Janas during the 2017/18 Ross Sea fishing season
integrated system collected video data from three cameras (two at the starboard hauling area and one at the ... and sensor data could be easily analysed to understand fishing activities (including understanding of ... developed to supplement and assist with scientific observation. This type of system has the potential to ... assist in improving the accuracy of data recording by observers, as well as allowing observers more time ...
Meeting Document : WG-SAM-18/20 : Author(s): B. Plum, A. Smith and S. Parker
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Proposals on standardization of toothfish resource research
discussed in the context of discussion at the Scientific Committee and the CCAMLR Commission in 2018 ... mandatory for all ships participating in the survey. At the same time, methodological aspects of the multi ... Abstract: The methodology of modern trawl surveys carried out the ICES responsibility area is ... regarding the longline survey methodology in Division 58.4.1. It is shown that the methodology of modern ...
Meeting Document : WG-SAM-2019/34 : Author(s): S. Kasatkina
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TEMPORAL CLARIFICATION OF THE TRANSITION FROM BLUE PHASE FINGERLING TO EARLY JUVENILE BROWN PHASE IN NOTOTHENIA ROSSII FROM THE SOUTH SHETLAND ISLANDS
of controversy in the literature: 1) we believe that the duration of the pelagic fingerling stage at ... by combining age/length data of the juvenile phase of N. rossii from this and a previous study at ... Abstract: Scales and whole otoliths were read for age determination of early stages of Notothenia ... rossii caught in Potter Cove, South Shetland Islands, in summer of years 2003-2006 and 2008. The sample ...
Meeting Document : WG-FSA-09/32 : Author(s): E. Barrera-Oro, E. Moreira, N. Alescio and E. Marschoff (Argentina)