Résultats de la recherche
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An experimental approach for the Antarctic krill fishery: advancing management and conservation through the use of Krill Reference Areas and Krill Fishing Areas
Abstract: We review reasons why the fishery for Antarctic krill is challenging to manage and ... continues. We propose an experimental framework to help improve the scientific basis for management. This ... to fishing, coupled with the use of Krill Reference Areas and Krill Fishing Areas. We use the ... characteristics, as the geographic and spatial basis for a set of differing treatments. We also consider the ...
Meeting Document : WS-SM-18/05 : Auteur(s): P.N Trathan and O.R. Godø
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Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass
level of escapement. The generalised yield model uses an unbiased estimate of SB0 and, thus, requires no ... krill yields according to decision rules that relate spawning stock status to the median unexploited ... spawning biomass, SB0. The first model has been developed specifically for krill, the krill yield model ... , while the second is a generalised yield model. The decision rules relate to the effects of a specified ...
Meeting Document : WG-EMM-97/45 : Auteur(s): de la Mare, W.K., Constable, A.J.
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Estimates of abundance of Dissostichus eleginoides and Champsocephalus gunnari from the random stratified trawl survey in the waters surrounding Heard Island in Division 58.5.2 for 2018
Abstract: The annual random stratified trawl survey (RSTS) of 2018 around Heard Island and ... McDonald Island (HIMI) in Division 58.5.2 took place from the end of March to the end of April, with the ... completion of 163 stations plus eight extra fine mesh hauls. The survey was conducted on the FV Atlas Cove ... . Sampling protocols such as the design and the duration of the hauls were similar to recent surveys, but ...
Meeting Document : WG-FSA-18/55 : Auteur(s): G. Nowara, T. Lamb and P. Ziegler
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Relationship between distribution of Antarctic krill (Euphausia superba) and environmental index MTEM-200 in the Antarctic Ocean throughout the year
subject since the British Discovery Reports. However, there was no remarkable achievement in particular ... Abstract: Antarctic krill (Euphausia superba) is the key species of the Antarctic marine ... oceanographic conditions have been an age-old recurrent problem and many papers have been published on the ... the entire Antarctic Ocean. To clarify the relationship between krill distribution of krill and ...
Meeting Document : WG-EMM-08/32 : Auteur(s): M. Naganobu, T. Kitamura and K. Hasunuma (Japan)
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Results from the random stratified trawl surveys to estimate distribution and abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2010 and 2011
2011 on the RV Southern Champion, adding to the time series of annual surveys in Division 58.5.2 that ... the September 2010 survey were used in the stock assessment as they provided valuable additional ... the average catch for the previous four years (2006-2009). Catches of C. gunnari were very low, with ... the 2011 catch, at less than 0.5 t, 15% of the earlier four year average, and the 2010 catch being 60 ...
Meeting Document : WG-FSA-11/23 : Auteur(s): G.B. Nowara, S.G. Candy and T. Lamb (Australia)
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The use of electronic monitoring camera system for the toothfish fishery in CCAMLR Subarea 48.3: a study case to help CCAMLR
reviewers watching the video footage. No significant differences were found in the number of all species of ... Abstract: Sampling methods to determine the composition and nature of the catch of the longlining ... CCAMLR observers deployed on the fishing fleet. The collection of this data is important for the ... assessment and management of the fishery. This independent estimation of the total catch in the fishery ...
Meeting Document : WG-FSA-14/27 : Auteur(s): R.A. Benedet (United Kingdom)
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The importance of sea ice association of Antarctic krill for transport and retention in the South Orkneys region: a modelling study
Abstract: The South Orkney Islands region is a key location for understanding the distribution of ... Antarctic krill in CCAMLR Area 48. The local krill populations support krill-dependent higher predators and ... krill fisheries, and the regional oceanographic circulation provides connections between the Antarctic ... Peninsula, the South Orkney Islands and the central Scotia Sea and South Georgia. Furthermore, the South ...
Meeting Document : WG-EMM-2019/21 : Auteur(s): S.E. Thorpe, E.F. Young, E.J. Murphy and A.H.H. Renner
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On the problem of diurnal migrations of some fish species on the South Georgia shelf (Subarea 48.3)
sunset) they ascended into the water column where they were found in the superficial layer. No ... Abstract: The results of experiments on the South Georgia Shelf carried out in the period of 1986 ... . The most representative data were obtained for Ch.gunnari and N.larseni. The vertical migration trend ... was the most distinctive in Ch.gunnari fry. The individuals used to ascend towards the water column ...
Meeting Document : WG-FSA-99/64 : Auteur(s): I.A. Trunov, J.A. Frolkina and M.P. Konstantinova (Russia)
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Report on fishing effort and seabird interactions during the season extension trials in the longline fishery for Patagonian toothfish (Dissostichus eleginoides) in Statistical Division 58.5.2
Abstract: Minimising seabird interactions with longline operations is a key objective of the ... management of fisheries in CCAMLR (see e.g. Conservation Measure CM 25-02 and 41-08). Longline fishing in the ... seabird mitigation measures since the initial fishing season in 2003. Over the years, CCAMLR has agreed to ... add season extensions from 15-30 April and 15 September- 31 October to the core season. In 2015 ...
Meeting Document : WG-FSA-2019/31 : Auteur(s): P. Ziegler, T. Lamb, S. Wotherspoon and J. Dell
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Proposal for a skate tagging program in the Ross Sea region to estimate the local biomass trend for starry skates (Amblyraja georgiana)
for skates in the Ross Sea region, we summarise skate catch and mark-recapture data through the 2016 ... annually). Catch data show that most of the skate catch consists of Amblyraja georgiana and that this ... species is the only one with enough mark-recapture data to examine movement patterns and estimate local ... biomass. Much of the A. georgiana catch occurs in SSRUs 88.1H and 88.1I in an area remaining open to ...
Meeting Document : WG-FSA-18/38 Rev. 1 : Auteur(s): S. Parker and M. Francis