Search results
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Revised proposal for a dedicated krill survey for CCAMLR Division 58.4.1 during 2018/19 season by the Japanese survey vessel, Kaiyo-maru
Abstract: A dedicated krill survey for CCAMLR Division 58.4.1 during 2018/19 season ... krill survey for CCAMLR Division 58.4.1 during 2018/19 season by the Japanese survey vessel, Kaiyo-maru ... A dedicated krill survey for CCAMLR Division 58.4.1 during 2018/19 season will be carried out ... Revised proposal for a dedicated krill survey for CCAMLR Division 58.4.1 during 2018/19 season ...
Meeting Document : WG-EMM-18/17 : Author(s): H. Murase, K. Abe, R. Matsukura, H. Sasaki, T. Ichii and H. Morita
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Modelling the impact of fishery by-catches on albatross populations
developed a deterministic, density-dependent, age-structured model for assessing the effects of longlining ... a deterministic, density-dependent, age-structured model for assessing the effects of longlining on wandering ... fisheries south of 30 S, to model estimated by-catch levels and other population parameters in the model ... (uniform between 30°S–60°S; proportional to the distribution of longline fishing effort between ...
Meeting Document : WG-FSA-01/18 : Author(s): G. Tuck, T. Polacheck (Australia), J.P. Croxall (UK) and H. Weimerskirch (France)
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DEVELOPMENT OF SPATIALLY EXPLICIT AGE-STRUCTURED POPULATION DYNAMICS OPERATING MODELS FOR ANTARCTIC TOOTHFISH IN THE ROSS SEA
Abstract: We present developments towards spatially explicit age-structured population dynamics ... -space model that represents a cohort-based population age structure in a spatially explicit manner ... . Models can be parameterised by both population processes (i.e., ageing, recruitment, and mortality ... on known attributes of spatial location. The operating models considered were single sex age-structured ...
Meeting Document : WG-SAM-09/18 : Author(s): A. Dunn, S. Rasmussen and S. Hanchet (New Zealand)
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Estimating Antarctic krill density from multi-beam observations using distance sampling methods
or multi-beam sonars. Here I highlight a recently published analysis technique- an adaptation of distance ... -beam sonars. Here I highlight a recently published analysis technique - an adaptation of distance ...
Meeting Document : SG-ASAM-12/05 : Author(s): M.J. Cox (Australia)
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OTOLITH-BASED AGEING OF THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS: MODELLING FIXED AND RANDOM READER ERROR USING MULTIPLE READINGS OF A REFERENCE COLLECTION
Abstract: Integrated assessments that use catch-at-age or abundance-at-age data for model ... calibration require an ageing error matrix as input in order to adequately account for uncertainty in the data ... resulting from the imprecision of age determination using annual ring counts from otoliths. This paper ... describes the methods and results used to provide an ageing error matrix to the HIMI toothfish integrated ...
Meeting Document : WG-FSA-09/21 : Author(s): S.G. Candy, G.B. Nowara, D.C. Welsford and J.P. McKinlay (Australia)
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OTOLITH-BASED AGEING OF THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS: MODELLING FIXED AND RANDOM READER ERROR USING MULTIPLE READINGS OF A REFERENCE COLLECTION
Abstract: Integrated assessments that use catch-at-age or abundance-at-age data for model ... calibration require an ageing error matrix as input in order to adequately account for uncertainty in the data ... resulting from the imprecision of age determination using annual ring counts from otoliths. This paper ... describes the methods and results used to provide an ageing error matrix to the HIMI toothfish integrated ...
Meeting Document : WG-SAM-09/07 : Author(s): S.G. Candy, G.B. Nowara, D.C. Welsford and J.P. McKinlay (Australia)
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Results from the 2019 annual acoustic krill monitoring off the South Orkney Islands
surveys from 2011 to 2018. The distribution was similar to previous years with most krill along the shelf ... 2011 to 2018. The distribution was similar to previous years with most krill along the shelf edge north ... for comparison with previous survey years and provide some context for the large scale survey estimate, we here ... was the second lowest on record, indicating a less patchy krill distribution than a typical year. Author ...
Meeting Document : WG-EMM-2019/69 : Author(s): G. Skaret, B.A. Krafft, G. Macaulay, T. Knutsen and O.A. Bergstad
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Spatio–temporal dynamics in maturation and spawning of Patagonian toothfish Dissostichus eleginoides on the subantarctic Kerguelen Plateau
of mature females did not spawn every year. Age-at-maturity estimates, obtained based on the assumption ... of mature females did not spawn every year. Age-at-maturity estimates, obtained based on the assumption ... for both sexes. However, the magnitude of this temporal variation in age-at-maturity varied between gear ... ;2015 periods for both sexes. However, the magnitude of this temporal variation in age-at-maturity ...
Meeting Document : WG-FSA-17/P04 : Author(s): P. Yates, P. Ziegler, D. Welsford, J. McIvor, B. Farmer and E.Woodcock
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Report of the Co-conveners of the CCAMLR Workshop for the Development of a Dissostichus mawsoni Population Hypothesis for Area 48 (19 to 21 February 2018, Berlin, Germany)
for Area 48 (19 to 21 February 2018, Berlin, Germany) Microsoft Word File: e-sc-xxxvii-01.docx Approval ... Population Hypothesis for Area 48 (19 to 21 February 2018, Berlin, Germany) ...
Meeting Document : SC-CAMLR-XXXVII/01 : Author(s): Workshop Co-conveners (C. Darby (UK) and C. Jones (USA))
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Diagnostic plots for the assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region to 2018/19
for the assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region to 2018/19 Microsoft ... ) in the Ross Sea region to 2018/19 ...
Meeting Document : WG-FSA-2019/10 : Author(s): A. Dunn