Search results
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Committee for Environmental Protection: 2019 Annual Report to the Scientific Committee of CCAMLR
Abstract: Cooperation between the Scientific Committee of CCAMLR (SC-CAMLR) and the Committee for ... Environmental Protection (CEP) has been steadily increasing over the last few years to the mutual benefit of ... both. In order to avoid duplicate reporting between the two committees and following discussions ... between the Chairs of the CEP and SC-CAMLR, the report of the CEP meeting is presented to SC-CAMLR by the ...
Meeting Document : SC-CAMLR-38/BG/07 : Author(s): CEP Observer to SC-CAMLR, Dr P. Penhale (USA)
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Physical forcing in the southwest Atlantic: ecosystem control
Abstract: In the southwest Atlantic sector of the Southern Ocean, temporal variability in the ... physical environment has been recorded since the early part of the last century. For example, ocean ... temperature at South Georgia shows the presence of high levels of autocorrelation, with periodicity evident in ... anomaly data for the El Niño 4 region in the Pacific show that variability at South Georgia also reflects ...
Meeting Document : WG-EMM-04/34 : Author(s): P.N. Trathan, E.J. Murphy, J. Forcada, J.P. Croxall, K. Reid and S.E. Thorpe (United Kingdom)
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A feasibility study for stock assessment of D. mawsoni in the Ross Sea (Subares 88.1 and 88.2) using a tag and recapture experiment
Abstract: This paper reports on a feasibility study into a tag and recapture experiment for the ... purpose of stock assessment of the Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea. An ... -98 to nearly 1800 t in 2002-03. Although some Patagonian toothfish (D. eleginoides) are taken in the ... 90% D. mawsoni) have been tagged and released in the area, from vessels operating in the exploratory ...
Meeting Document : WG-FSA-SAM 03/10 : Author(s): K.J. Sullivan, N.W.McL. Smith, J. McKenzie and S.M. Hanchet (New Zealand)
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Analysis of variables influencing finfish by-catch in the krill fishery in Area 48
Abstract: This report presents the results of a method used to explore potential explanatory ... variables influencing finfish bycatch in the krill fishery of Area 48. Records of finfish bycatch in the ... Area 48 krill fishery collected by observers on the FV Saga Sea were analysed over the period 2007/08 ... -2011/12. The majority of fish caught were either small juveniles or larvae, dominated by Myctophidae ...
Meeting Document : WG-EMM-12/28 : Author(s): S.M. Martin, T. Peatman, J. Moir Clark (United Kingdom), O.R. Godø (Norway) and R.C. Wakeford (United Kingdom)
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Further development of coarse- and medium-scale spatially explicit population dynamics operating models for Antarctic toothfish in the Ross Sea region
operating models for Antarctic toothfish in the Ross Sea. The operating models consider both a coarse-scale ... and medium-scale spatial resolution and consider scenarios where abundance can be present over the ... entire Ross Sea region or restricted to areas where the fishery has operated. The models are implemented ... in the generalised Bayesian population dynamics model, the Spatial Population Model (SPM). The SPM ...
Meeting Document : WG-FSA-12/44 : Author(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2014–15
Abstract: This report summarises the timing, depth, and location of fishing effort together with ... biological characteristics of the catch of Antarctic toothfish up to and including the 2015 season. In 2015 ... , the Ross Sea slope SSRUs were significantly constrained by sea ice and catches were unevenly ... distributed across the three SSRUs (73% in 88.1H, 22% in 88.1K and 5% in 88.1I). As in recent years, the ...
Meeting Document : WG-FSA-15/36 : Author(s): K. Large, S.M. Hanchet and S. Mormede (New Zealand)
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Performance metrics to index the spatial coverage of mark-recapture data
Abstract: Understanding the spatial distribution of the release of tagged fish and the subsequent ... interpreting the biomass estimated from mark recapture data. In 2015, the Scientific Committee identified that ... measures of spatial overlap and potential bias in the development of tag-based biomass estimates are an ... new biomass-weighted spatial overlap summary statistics for tagging data. The method calculates two ...
Meeting Document : WG-SAM-16/13 : Author(s): C. Marsh, A. Dunn and S. Mormede
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Preliminary evaluation of two feedback management strategies for the krill fishery in Subareas 48.1–48.3
Abstract: The Scientific Committee has previously used results from the Krill-Predator-Fishery ... Model (KPFM2, also known as Foosa) to consider the risks that implementing various management strategies ... for the krill fishery will compromise the Commission’s ability to achieve the objectives in Article II ... of the Convention. Management strategies for the krill fishery are currently comprised of an overall ...
Meeting Document : SC-CAMLR-XXXVII/BG/12 : Author(s): Delegation of the USA
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METHODOLOGY OF EVALUATING THE AQUATIC LIFE RESOURCES
Abstract: ic life is developed in accordance with the rules of metrology, mathematical statistics ... and using the biocenological regularities of water objects. The basis of evaluating the stocks of ... water life was investigated through biocenotic conditionality in the areas of their equal probability in ... concentrations. The traditional method of squares in evaluating the stocks of water life was modernized with the ...
Meeting Document : WG-SAM-08/P02 : Author(s): L.A. Kovalchuk (Ukraine)
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Population dynamics of the wandering albatross Diomedea exulans at Marion Island: long-line fishing and environmental influences
Abstract: The subantarctic Prince Edward Islands (Marion and Prince Edward) support the largest ... breeding population of the Vulnerable wandering albatross Diomedea exulans. The numbers of birds breeding ... in the Marion Island population has fluctuated over the past three decades and appears to be the ... result of both real changes in the size of the population and changes in the proportion of the population ...
Meeting Document : WG-EMM-03/11 : Author(s): D.C. Nel, F. Taylor, P.G. Ryan and J. Cooper (South Africa)