Search results
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Proposals on improving the governance and control of fishing vessels operating in the Southern Ocean
Abstract: There are a number of actions that CCAMLR and its members should implement to improve ... the governance and control of fishing vessels in the Southern Ocean, thereby enhancing safety, and ... requirement for ice-strengthening for fishing vessels, a two-tier system of training for vessels crews and ... Masters, and identification of requirements for environmental response and monitoring in the event of an ...
Meeting Document : CCAMLR-XXXIII/BG/22 Rev. 1 : Author(s): Submitted by ASOC
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Outline for year 3 of the 3-year longline survey to determine toothfish population connectivity between Subareas 48.2 and 48.4
third year of an agreed 3-year longline survey, in the wider context of connecting the recently ... objectives include determining population connectivity between these Subareas, improving understanding of ... distributions of benthic bycatch species. This plan includes a three-year data collection and two-year data ... analysis plan leading towards the development of a stock hypothesis for the eastern regions of 48.2 and ...
Meeting Document : WG-SAM-18/15 : Author(s): M. Söffker and M. Belchier
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Using the EPOC modelling framework to assess management procedures for Antarctic krill in Statistical Area 48: evaluating spatial differences in productivity of Antarctic krill
Abstract: Spatially explicit simulation models of the Antarctic marine ecosystem are needed to ... development of a harvest strategy are whether (i) spatial differences in the productivity of krill give rise ... to differential affects on predators in different locations, (ii) movement of krill between locations ... conservation objectives for predators could be affected by those changes. Productivity of krill can be impacted ...
Meeting Document : WG-EMM-06/38 Rev. 1 : Author(s): A.J. Constable (Australia)
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Antarctic icefishes (Channichthyidae) – a unique family of fishes – a review
Abstract: Icefish are a family of species unique among vertebrates in that they possess no ... haemoglobin. With the exception of one species, icefish live only in the cold – stable and oxygen – rich ... environment of the Southern Ocean. It is still questionable how old icefish are in evolutionary terms: they ... they are 15 – 20 Ma old and started to evolve some time after the formation of the Antarctic ...
Meeting Document : WG-FSA-04/10 : Author(s): K.-H. Kock (Germany)
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ALLOCATION OF RESEARCH HAULS IN THE EXPLORATORY FISHERIES FOR DISSOSTICHUS SPP. IN SUBAREAS 48.6 AND 58.4 IN 2008/09
account for SSRUs where fishing had not been previously reported, and SSRUs where the number of positions ... replacement) of 5 research hauls per stratum (fished and lightly fished/unfished) for each vessel. Where ... each vessel in each SSRU (position separation distances 7-120 nmiles). A total of 1082 starting ... of Insung No.1 (SSRU 5841C) and Shinsei Maru No.3 (SSRU 5842A) where the setting of research lines ...
Meeting Document : WG-SAM-09/06 : Author(s): Secretariat
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Preliminary assessment models of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea including data from the 2005/06 season
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... in a similar, though slightly higher, estimate of initial and current biomass as the 2005 base case ... model. The inclusion of the 2005 release and the 2006 recapture data had the effect of only slightly ... modifying the estimates from the models, suggesting that the new data had a similar pattern to that of ...
Meeting Document : WG-FSA-SAM-06/11 : Author(s): Dunn, A. & Hanchet, S.M.
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The orderly development of the krill fishery
, such a large increase required the inclusion of other elements in the conservation measure to ... facilitate the orderly and precautionary development of the fishery. Australia has this year submitted papers ... considers critical to the orderly and precautionary development of the krill fishery. In summary Australia ... Transhipment operations be overseen by the flag State, similar to the unloading of catches at port in CM 10-03 ...
Meeting Document : CCAMLR-XXVI/30 : Author(s): Delegation of Australia
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An exact time of release and recapture stock assessment model applied to Macquarie Island Patagonian toothfish (Dissostichus eleginoides)
Abstract: This paper presents an assessment of the harvested population of Patagonian toothfish ... fishing season. Population models that include dynamics of tagged and un-tagged fish, daily releases ... , catches, recaptures, natural mortality, and annual net recruitment are used to assess the population of ... one of the main fishing regions of Macquarie Island: Aurora Trough. The pre-tagging abundance is ...
Meeting Document : WG-FSA-00/43 : Author(s): G. Tuck, W. de la Mare, W. Hearn, R. Williams, A. Smith, X. He and A. Constable (Australia)
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An investigation of integrated stock assessment methods for the Patagonian toothfish (Dissostichus eleginoides) in Division 58.5.2 using CASAL
primarily based on the 2005 assessment implemented in the Generalised Yield Model (GYM) using survey data of ... the abundances of juvenile fish but adding fishery catch-at-length data, including a standardised ... catch-per-unit-effort (CPUE) series. The base-case scenario was then extended to include estimates of ... between estimating natural mortality and selectivity for the different fisheries. The results of this work ...
Meeting Document : WG-FSA-SAM-06/14 : Author(s): A. Constable, S. Candy and I. Ball (Australia)
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Further development of a spatially explicit population dynamics operating model for Antarctic toothfish in the Ross Sea region
spawning (based on GSI data), CPUE, and tag-release and tag-recapture observations. Estimates of parameters ... appeared to broadly reflect the hypothesised spatial distribution of Antarctic toothfish, suggesting that ... younger fish were found predominantly in southern areas of the Ross Sea shelf, mature fish on the slope ... and spawning fish in the northern areas of the Ross Sea region. Fits to the observations were ...
Meeting Document : WG-SAM-13/35 : Author(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)