Résultats de la recherche
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Acoustic monitoring and evaluation of krill in the Antarctic ecosystem Bransfield Strait and around Elephant Island during ANTAR XXI and XXII, aboard RV Humboldt, Peru
Abstract: Monitoring and hydroacoustic assessment of the distribution and biomass of krill ... (Euphausia superba) was held on board the BIC Humboldt during scientific campaigns Peru to Antarctica in the ... austral summer: Antar XXI (15 to 22 February 2013) and Antar XXII (22 to 31 January 2014). The areas ... ; ANTAR XXII: 21 070.62 nm2 with 17 transects).The SIMRAD EK60 scientific echosounder used for ...
Meeting Document : WG-EMM-16/76 : Auteur(s): R. Cornejo, M. Flores and J. Zuzunaga
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Proposal for an acoustic krill biomass survey in CCAMLR Subarea 48.1 in relation to the hydrological environment and in conjunction with carbon cycling and temperature adaptation experiments of krill and salps
Abstract: As part of the German contribution to Convention for the Conservation of Antarctic ... CCAMLR division 48.1 during April 2018. The survey will be part of a larger research cruise (PS112 ... ) investigating the role of krill and salps in Southern Ocean carbon cycling and the temperature adaptation ... capacities of both species in the context of climate change. Acoustic survey and physiological experiments ...
Meeting Document : WG-EMM-17/39 : Auteur(s): B. Meyer, L. Suberg, S. Fielding, O.R. Godø and C. Reiss
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Diet overlap among top predators at the South Orkney Islands, Antarctica
analyzed diet information on nine bird and two seal species collected in the austral summer from 1996 to ... 2000 at South Orkney Islands. Overall, the diet of most of the predators was mainly composed of krill ... , fish or penguins. The re-occurrence of prey among predators was intermediate and ranged from 25.3 to ... 36.7 and fish, krill and squid re-occurred most frequently. The re-occurrence of fish among predator ...
Meeting Document : WG-EMM-18/04 : Auteur(s): M.L. Bertolin and R. Casaux
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Modelling Movement of Antarctic Krill (MMAK): the importance of retention, dispersal and behaviour for krill distribution – a project update
Abstract: This paper provides an update on the joint UK-Norway MMAK project, funded by the ... Antarctic Wildlife Research Fund, to improve current understanding of the regional and local-scale processes ... that influence the distribution of Antarctic krill in CCAMLR Area 48, focussing in particular on the ... investigate the impact of physical and behavioural processes on the distribution of krill in this area, at ...
Meeting Document : WG-EMM-18/06 : Auteur(s): S.E. Thorpe, E.F. Young, E.J. Murphy, O.R. Godø and A.H.H. Renner
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The effect of temporal variability on power analysis predictions for Adélie penguin CEMP parameters at Béchervaise Island
Abstract: There are unresolved issues surrounding the use of power analyses for examining the ... ability of CEMP data to detect change. The effect size that should prompt a response if observed in a ... parameter and the likely response of parameters such as arrival or fledgling weights are two of these issues ... . Understanding the source of the variability required to generate ‘noise’ for the power analysis simulations is ...
Meeting Document : WG-EMM-03/49 : Auteur(s): L.M. Emmerson and C. Southwell (Australia)
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The krill fishery observer manual – points to be revised
Abstract: This document lists up the current form to be filled in the observer manual for the ... krill fishery. I raise the underlying problem to be clarified or modified. This includes technical ... problems, workload limit, and also the problem of the commercial confidentiality. The current manual ... consists of nine forms and some of them were developed independent from other forms. Once the observer at ...
Meeting Document : WG-EMM-02/29 : Auteur(s): S. Kawaguchi (Japan)
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Proposal to amend the fishing season for longline vessels fishing for Dissostichus eleginoides in Subarea 48.3 and trial two further 5 day season extensions
Abstract: Following the successful earlier start of the Dissostichus eleginoides fishing season ... in Subarea 48.3 (26th April in 2009/10 and 21st April in 2010/11) this paper summarises the results ... of the past two seasons and proposes moving the beginning of the fishing season to the 21st April ... with a further two five day extensions over the next two years to the 16th and then the 11th April ...
Meeting Document : WG-IMAF-11/09 : Auteur(s): J. Brown (United Kingdom)
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DEPREDATION AROUND SOUTH GEORGIA AND THE IMPLICATIONS ON STOCK ASSESSMENT OF D. ELEGINOIDES
Abstract: Observer data collected on longliners between 2003 and 2009 was analysed to look at the ... %) with killer whales present on 562 lines (3.8%) and sperm whales on 2588 lines (17.7%). By comparing the ... catch per unit efforts (CPUEs) with and without the presence if cetaceans, the amounts lost were also ... examined and varied from 0.9% to 5.8% of the TAC per year over the time period. Additional work was also ...
Meeting Document : WG-FSA-09/16 : Auteur(s): J. Moir Clark, D.A. Agnew, P. McCarthy and M. Unwin (United Kingdom)
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Hatching season and growth of Pleuragramma antarcticum larvae near the Antarctic peninsula in austral summer 1993/94
Abstract: Hatching season and larval growth of Pleuragramma antacticum in the water off Antarctic ... Peninsula were determined by the examination of growth increments in otoliths. The samples were collected by ... (54 inds. out of 77 fish larvae) in ichthyoplankton samples, and occurred mainly in cold water of the ... to 260 μm, and linearly related to body size (L); R =- 43.6 + 5.99 L (r2=0.79). The mean size of ...
Meeting Document : WG-EMM-96/65 : Auteur(s): Cha, S.S., Lee, T.W., Kim, S.
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Revised estimates of yield for Electrona carlsbergi based on a generalised version of the CCAMLR krill yield model
widely varying recruitment patterns, overestimation of the abundance of the stock and age of the most ... recent survey. These problems are addressed in this paper by using stock projections to assess the ... probabilities of the stock of Electrona carlsbergi becoming depleted over a 20 year period. These projections ... have been undertaken using a generalised version of the CCAMLR Krill Yield Model. This is appropriate ...
Meeting Document : WG-FSA-94/21 : Auteur(s): A.J. Constable and W.K. de la Mare (Australia)