Search results
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Linking population trends of Antarctic shag (Phalacrocorax bransfieldensis) and fish at Nelson Island, South Shetland Islands (Antarctica)
Abstract: This study aims to provide consistent information to explain the steady declining trend ... in the number of breeding pairs of Antarctic shag Phalacrocorax bransfieldensis in two colonies on ... the 1990s up to the mid 2000s over an overall monitoring period of over two decades. It addresses ... of this area, where an intensive commercial fishery for shag prey once operated. The analysis also ...
Meeting Document : WG-EMM-16/P09 : Author(s): R. Casaux and E. Barrera-Oro
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Sources of variability associated with Adélie penguin CEMP parameters measured at Béchervaise Island, East Antarctica
Abstract: We examine the magnitude of a variety of sources of variability associated with CEMP ... parameters. The CEMP parameters considered in this paper include: A3: breeding population size, A1: arrival ... be considered as either sampling variance or process related variance, although sometimes the two can ... be confounded. Temporal variability, that is the between-season variability, was consistent across ...
Meeting Document : WG-EMM-03/48 : Author(s): L.M. Emmerson, C. Southwell, J. Clarke and K. Kerry (Australia)
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Interannual changes in body fat condition, stomach content mass and distribution of minke whales in Antarctic Areas IV and V
the six years included in the study, two were categorized as years of poor body fat condition, and ... three as years of good condition. Estimated body weight gain during the feeding season in poor years was ... 25 % lower than in good years. The relationship between girth and stomach content mass in the ice ... (Euphausia superba) was the dominant prey species, but in the southern part of the Ross Sea (in Area V), E ...
Meeting Document : WG-EMM-97/18 : Author(s): Ichii, T., Nishiwaki, S., Tamura, T., Fujise, Y., Matsuoka , K.
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Linking predator and prey behaviour: contrasts between Antarctic fur seals and macaroni penguins at South Georgia
are the two main land-based krill Euphausia superba consumers in the northern Scotia Sea. Using a ... -based (animal tracking and diet analysis) techniques, we examined variability in the foraging ecology of ... these sympatric top predators during the austral summer and autumn of 2004. Krill availability derived ... from acoustic surveys was low during summer, increasing in autumn. During the breeding season, krill ...
Meeting Document : WG-EMM-10/P07 : Author(s): C.M. Waluda, M.A. Collins, A.D. Black, I.J. Staniland and P.N. Trathan
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A SIMULATION MODEL FOR EVALUATING MANAGEMENT STRATEGIES TO CONSERVE BENTHIC HABITATS (VULNERABLE MARINE ECOSYSTEMS) WHICH ARE POTENTIALLY VULNERABLE TO IMPACTS FROM BOTTOM FISHERIES
ecosystems’ in order to maintain the ecological structure and function of, particularly, deep sea benthic ... habitats. Noting the paucity of data on the ecology of these habitats, this paper provides a practical ... approach to develop and evaluate fishing strategies aimed at achieving this objective i.e. what is the most ... cost‐effective way that fishers might be able to collectively enact this resolution? The UNGA ...
Meeting Document : WG-SAM-09/21 : Author(s): A.J. Constable (Australia)
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Analysis of krill fishery operations in Subarea 48.1: spatial-time distribution of CPUE and fishing efforts
Abstract: In previous years we revealed that period 2006-2011 is characterized by the highest ... values of standardized CPUE indices in the Subarea 48.1 for the last 25 years. We continue to investigate ... krill fishery data for understanding reasons of this ‘high CPUE’ regime. The authors present the ... method. We obtained the additional evidence that ‘high CPUE’ regime’ in 2006-2011 is not associated with ...
Meeting Document : WG-EMM-14/21 : Author(s): S. Kasatkina and P. Gasyukov (Russia)
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Direct ageing of Antarctic krill (Euphausia superba) – potential utility of eyestalk sections for age determination
Abstract: We outline a method for the direct determination of age in Antarctic krill (Euphausia ... superba). Recent studies (Kilada et al. 2012), have shown that annular growth bands are present in the ... endocuticle layer of the eyestalks and gastric mill in decapod crustaceans. Here we report on a preliminary ... proof of concept study using several known age krill grown under controlled conditions at the Australian ...
Meeting Document : WG-EMM-15/45 : Author(s): C. Reiss (USA), R. Kilada (Canada) and S. Kawaguchi (Australia)
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CEMP indices: sea ice data
Abstract: The position of the sea ice edge around the Antarctic continent was digitised into ... MAPINFO GIS software from the Joint Ice Centre weekly charts of sea ice distribution. The digitised images ... were then used to calculate the distance of the ice edge from CEMP sites throughout the year. These ... data are used to construct several of the indices associated with CEMP Environmental Monitoring Method ...
Meeting Document : WG-CEMP-93/15 : Author(s): Secretariat
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Proposal for a CCAMLR Compliance Evaluation Procedure
Abstract: Further to the strong will expressed by Members at CCAMLR XXX to progress the work of ... the Development of a Compliance Evaluation Procedure Group, Australia coordinated intersessional work ... proposing a CCAMLR Compliance Evaluation Procedure (CEP), presented at Attachment A. The purpose of the ... proposed CCAMLR CEP is to provide a formal mechanism for the assessment of Members' compliance against ...
Meeting Document : CCAMLR-XXXI/29 : Author(s): Delegation of Australia
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About unidentified fishing gear at CCAMLR Fishing Area 88.1С
Abstract: The CCAMLR Member States were informed by the circular letter of CCAMLR No COMM CIRC 17 ... /100 that the fishing vessel "Sunstar" (flying the flag of the Republic of Korea) picked up ... the unidentified fishing gear at CCAMLR Fishing Area 88.1С on November 23, 2017 which was set before ... starting of fishing period 2017/2018. The State Agency of Fisheries of Ukraine informs about activities of ...
Meeting Document : CCAMLR-38/BG/49 : Author(s): Delegation of Ukraine