Search results
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Mark-recapture inputs to the 2017 Ross Sea region stock assessment (Subarea 88.1 and SSRUs 88.2A–B)
Abstract: We provide a summary of the mark-recapture data inputs to the 2017 Ross Sea region ... detection rates for each vessel were calculated. In the last few years the effective tagging survival is ... estimated at about 65% and the effective tag detection rate at about 85%. Author(s): S. Parker and S ... . Mormede Title: Mark-recapture inputs to the 2017 Ross Sea region stock assessment (Subarea 88.1 and SSRUs ...
Meeting Document : WG-FSA-17/36 : Author(s): S. Parker and S. Mormede
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Plan of research program of the Ukraine in Subarea 88.3 in 2019
Abstract: The research of Dissostichus in Subarea 88.3 carried out by Chile in 1998, New Zealand ... in 2005, Russia in 2011 and 2012 and the Republic of Korea in 2017 and 2018. It was noted that no ... tagged fishes were recaptured during the previous research activities. Studies are planned to be ... conducted from January to March, as ice conditions permit. It is planned that the number of longline sets ...
Meeting Document : WG-SAM-18/12 : Author(s): Delegation of Ukraine
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Hierarchical monitoring plans to determine patterns of change in the Antarctic Marine Ecosystem
Abstract: In this paper we drawn comparison between the existing CCAMLR Ecosystem Monitoring ... the outcomes of the CEMP Review in 2003, and as a result highlight the intensity of monitoring ... monitoring could be employed to detect the first signs of change. Author(s): P. Trathan Title: Hierarchical ... monitoring plans to determine patterns of change in the Antarctic Marine Ecosystem Approval: Approved ...
Meeting Document : WS-SM-18/06 : Author(s): P. Trathan
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Preliminary analyses in support of the CEMP Review Workshop: power analyses
Abstract: A series of power (sensitivity) analyses of CEMP indices was made using the DOS-based ... change over the range –10% to +10% of a mean survey value. Each run of MONITOR involved the calculation ... of power for 3 survey scenarios and 3 alpha levels (0.05, 0.10 and 0.20). The 3 surveys scenarios ... change. However, changes within the range –10% to +10% can be detected in indices A1, A2, A5a, A7, A8b ...
Meeting Document : WG-EMM-03/26 : Author(s): Secretariat
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Estimation of catch rate and mean weight in the exploratory Dissostichus fisheries across Divisions 58.4.1 and 58.4.2 using generalised additive models
Abstract: The exploratory longline fisheries in Divisions 58.4.1 and 58.4.2 (primarily targeting ... between 2003 and 2011 enabled the development of generalised additive mixed models that were then used to ... across the region are low compared to those in other Dissostichus fisheries within the Convention Area ... hooks. The region around Prydz Bay is predicted have the highest catch rate of D. mawsoni and is also ...
Meeting Document : WG-FSA-11/35 : Author(s): D.C. Welsford (Australia)
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Flexible foraging strategies of gentoo penguins help buffer the impacts of inter-annual changes in prey availability
. We examined inter-annual changes in the foraging strategies and diet of gentoo penguins in the South ... Shetland Islands, Antarctica, over five years. Antarctic krill Euphausia superba was the primary diet item ... , and fish the secondary, though the importance of these items varied among years. Diving behavior also ... flexibility may contribute to why gentoo penguin populations have remained stable in the region, while their ...
Meeting Document : WG-EMM-08/50 : Author(s): A.K. Miller and W.Z. Trivelpiece (USA)
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Results from the reduced groundfish survey conducted in CCAMLR Subarea 48.3 in January 2012
Abstract: A reduced (three day) groundfish survey took place at Shag Rocks on the FV New Polar ... between the 26-28th January 2012. This survey was not intended to be a full biomass survey so only 20 ... and Euphausiidae was the dominant prey item in the mackerel icefish diet. Strong acoustic marks, some ... of which may be attributable to icefish, were observed in the water column, and in only 23 hauls 15.2 ...
Meeting Document : WG-FSA-12/37 : Author(s): J. Brown, S. Gregory, A. Stanworth, V. Carretero, G. Baker and M. Belchier (United Kingdom)
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Gear loss reported by longline fishing vessels for the 2018 and 2019 fishing seasons
Abstract: Gear loss as reported by longline vessels from the 2018 and 2019 fishing seasons ... . Vessels reported 1 632 km of line lost in the Convention Area, of which 27% were complete lines. There was ... no difference in the relative reporting of lost hooks by gear type, with rates of loss recorded at ... 0.3% for each gear type for the past two seasons. There was a significant difference in the frequency ...
Meeting Document : WG-FSA-2019/18 : Author(s): CCAMLR Secretariat
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Integrating Climate and Ecosystem Dynamics in the Southern Ocean (ICED) programme: developing links between ICED and CCAMLR
Abstract: Integrating Climate and Ecosystem Dynamics in the Southern Ocean (ICED) is a regional ... programme of the Integrated Marine Biogeochemistry and Ecosystem Research (IMBER) Programme and is closely ... analyses to improve our understanding of change and the implications for Southern Ocean ecosystems and for ... been made in understanding the structure and functioning of ecosystems, modelling species and food webs ...
Meeting Document : WG-EMM-16/22 : Author(s): E. Murphy, R. Cavanagh, N. Johnston, E. Hofmann and A. Constable
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Summary of incidental mortality associated with fishing activities collected in scientific observer and vessel data during the 2018 season
during the course of fishing activities during the 2018 season. Incidental mortality numbers for longline ... fisheries in which seabird mortalities have been reported are presented with the data from observers and ... vessel supplied data. Based on data received up to 8 October 2018, the extrapolated total of 87 birds ... killed is the lowest on record. Author(s): CCAMLR Secretariat Title: Summary of incidental mortality ...
Meeting Document : WG-FSA-18/13 Rev. 1 : Author(s): CCAMLR Secretariat