Search results
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Estimating prey consumption of the non-breeder component of an Adélie penguin population
as an element in CCAMLR’s ecosystem-based approach to management for the krill fishery in the ... Abstract: Estimating the consumption of prey by higher-order predators is a priority for WG-EMM ... Southern Ocean. Previous assessments of prey consumption for seabirds have focussed on breeders using data ... of an Adélie penguin population can be substantial compared with the size of the breeder population ...
Meeting Document : WG-EMM-17/12 : Author(s): L. Emmerson and C. Southwell
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Conservation Measure Conservation Measure 213/XIX (2000)
; (v) diet and stomach fullness; (vi) scales and/or otoliths for age determination; (vii) by-catch of fish ... to fishing operations, and details of any incidental mortality of these animals. CONSERVATION MEASURE 213 ... from 1 December 2000 to 30 November 2001 or until the catch limit is reached, whichever is sooner ... to CCAMLR by 30 September 2001 so that the data will be available to the meeting of the Working Group ... Exploratory Fishery for Martialia hyadesi in Statistical Subarea 48.3 in the 2000/01 Season Area ...
Conservation Measure : 213/XIX (2000)
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Results of an acoustic investigation of Antarctic krill, Euphausia superba, biomass-density in the Elephant Island area in January/February 2001
and processed according to protocols used for the CCAMLR 2000 Synoptic Survey. An average biomass ... Abstract: Results from an acoustic krill survey in the Elephant Island Area carried out Jan 27th ... density of 15.32 g/m2 and a standing stock (B0) of 1.7 million tonnes were estimated for the entire area ... ). The biomass density presented here is also higher than the long-term running mean from net samples for ...
Meeting Document : WG-EMM-02/30 : Author(s): M.A. Thomasson (Sweden), J.H. Emery (USA), J. Rademan (South Africa), R.P. Hewitt (USA) and B.I. Bergström (Sweden)
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An assessment of toothfish in Subarea 48.3 using CASAL
frequencies, and a poor fit to the CPUE data, for which an even higher process error CV was estimated (0.46 ... Abstract: The CASAL software has been successfully applied to an assessment of the stock of ... , with an extensive range of sensitivity tests and examination of diagnostics. A baseline assessment ... the catch length frequencies, but a poor fit to the early CPUE data, for which a substantial process ...
Meeting Document : WG-FSA-05/16 : Author(s): R.M. Hillary, G.P. Kirkwood and D.J. Agnew (United Kingdom)
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An integrated stock assessment of Patagonian toothfish (Dissostichus eleginoides) in CCAMLR Subarea 48.4
Abstract: This paper describes an update to the CASAL assessment of Patagonian toothfish (D ... . eleginoides) in Subarea 48.4. The assessment data time series are updated with the observations for the 2014 ... data for the full time series, a revised maturity ogive, and changes to the assumed tag growth ... retardation period. Stock projections indicate that the stock is in healthy condition and that an annual yield ...
Meeting Document : WG-FSA-15/28 : Author(s): M. Soeffker, V. Laptikhovsky, T. Earl and C. Darby (United Kingdom)
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AN UPDATED DESCRIPTION AND PARAMETERISATION OF THE SPATIAL MULTI-SPECIES OPERATING MODEL (SMOM )
Abstract: An updated version of the Spatial Multi-species Operating Model (SMOM) of krill ... -predator-fishery dynamics is described. This has been developed in response to requests for scientific ... advice regarding the subdivision of the precautionary catch limit for krill among 15 small-scale ... using the WG-SAM set of reference observations for Area 48 (the SAM calendar) is described. Alternative ...
Meeting Document : WG-SAM-08/17 : Author(s): É.E. Plagányi and D.S. Butterworth (South Africa)
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Development of an acoustic sensor to estimate catch directly from the trawl during continuous krill harvesting
Abstract: This paper describes experiments and plans for development of an acoustic sensor to ... support precise catch reporting for the continuous krill harvesting fishery. Author(s): O.R. Godø, B ... . Krafft and F. Grebstad Title: Development of an acoustic sensor to estimate catch directly from the ... Secretariat Workflow Status: Content Approved Document Release Consent: No Delegation responsibility for ...
Meeting Document : WG-EMM-2019/15 : Author(s): O.R. Godø, B. Krafft and F. Grebstad
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Update on the ‘Demersal interactions with marine benthos in the Australian EEZ of the Southern Ocean: an assessment of the vulnerability of benthic habitats to impact by demersal gears’ project
Abstract: We provide an update on progress in the FRDC and industry-funded project “Demersal ... interactions with marine benthos in the Australian EEZ of the Southern Ocean: an assessment of the ... technologies and unique datasets for quantifying the dynamics and extent of the interactions between demersal ... fishing gears and deep sea habitats in the Southern Ocean, will assist with providing key components for ...
Meeting Document : WG-EMM-10/23 : Author(s): G.P. Ewing, D.C. Welsford and A.J. Constable (Australia)
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An assessment of the use of ocean gliders to undertake acoustic measurements of zooplankton: the distribution and density of Antarctic krill in the Weddell Sea
Abstract: A calibrated 120 kHz single-beam echo-sounder was integrated into an ocean glider and ... deployed in the Weddell Sea, Southern Ocean. The glider was deployed for two short periods in January 2012 ... density estimates by up to 8-fold. Glider-based, echo-sounder–derived krill density profiles for the two ... significant difference from observed profiles. Simulated glider dives required at least an order of magnitude ...
Meeting Document : WG-EMM-14/P02 : Author(s): D. Guihen, S. Fielding, E. Murphy, K. Heywood and G. Griffiths
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An initial analysis of data provided from the deployment of scientific observers in the krill fishery
for future sampling scheme, including the potential for an adaptive responding to the variability in ... Abstract: An analysis of the observer data provided from the krill fishery was undertaken using a ... (CCAMLR Secretariat) Title: An initial analysis of data provided from the deployment of scientific ...
Meeting Document : WG-EMM-12/60 : Author(s): S. Thanassekos (CCAMLR Secretariat), S. Candy (Australia), E. Appleyard (CCAMLR Secretariat), S. Kawaguchi (Australia) and K. Reid (CCAMLR Secretariat)