Search results
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Summer distribution, abundance and structure of krill populations (Euphausia superba and Euphausia crystallorophias) sampled by plankton net in the western Ross Sea (January–February 2000)
) were analysed to obtain a general picture of the summer distribution pattern, abundance and demography ... of krill in the western Ross Sea (Antarctica). A midwater sampler-trawl (Hamburg Plankton Net) was ... used to collect zooplankton and fish larvae at 63 stations. The net was deployed normally as a standard ... double oblique tow. Mean relative biomass of Antarctic krill Euphausia superba, in the area north of ...
Meeting Document : WG-EMM-00/38 : Author(s): M. Azzali, A. Sala and G. Brancato (Italy)
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Habituation to an acoustic harassment device (AHD) by killer whales depredating demersal longlines
return of initial depredation behaviour strongly suggests that AHDs are ineffective at deterring ... fisheries that suffer significant losses caused by odontocete depredation. However, the efficacy of AHDs to ... deter odontocetes from fishing gear remains poorly investigated. To determine the effectiveness of AHDs ... distances of 29 killer whales from the vessel (n = 1,812 records) were collected during 45 phases of AHD ...
Meeting Document : WG-FSA-14/P04 : Author(s): P. Tixier, N. Gasco, G. Duhamel and C. Guinet
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Krill fisheries and sustainability
Antarctic krill (Euphausia superba) Krill are small crustaceans of the order Euphausiacea, and are ... superba, makes up an estimated biomass of around 379 000 000 tonnes 1, more than that of the global ... population of humans. Of this, over half is eaten by whales, seals, penguins, squid and fish each year, and ... is replaced through reproduction and subsequent growth of the krill population. Krill can live up to ...
Page : Site Section: Fisheries
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ECOSYSTEM SERVICES OF THE SOUTHERN OCEAN
the concept of ecosystem services is not generally used within the Antarctic Treaty System (ATS), creating ... the ATS are in many ways pre-adapted to deliver evidence-based policy which takes the current and future ... their global importance; (ii) facilitating comparisons of individual services across the ATS; (iii ... ) facilitating consideration of the full suite of ecosystem services under the ATS; (iv) allowing comparability ...
Meeting Document : WG-EMM-11/21 : Author(s): S.M. Grant, S.L. Hill and P.N. Trathan (UK)
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Special requirements of Developing States
6.5.1 Extent to which CCAMLR recognises the special needs of Developing States and pursues forms ... of cooperation with Developing States, taking into account the Code of Conduct for Responsible ... – endorsement of the CCAMLR Scientific Scholarship Scheme (participation not limited to developing States ... 4.15 to 4.18; (2011) CCAMLR-XXX/28 and CCAMLR-XXX/33 further workshops Secretariat review of new and ...
Page : Site Section: The Organisation
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Preliminary investigations of an assessment model for skates and rays in the Ross Sea
, steepness, and size and age at maturity. The applicability of a general model, such as presented here, to a ... Antarctic skates in SSRUs 88.1H, 88.1I, 88.1J, & 88.1K of the Ross Sea. The developmental model ... attempted to create a catch history of all skates and rays in the Ross Sea, and integrate these data with ... assessment model. We conclude that aspects of the catch history were very uncertain, including the species ...
Meeting Document : WG-SAM-07/4 : Author(s): A. Dunn, S.M. Hanchet, S.L. Ballara and M.P. Francis (New Zealand)
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Proposal for the removal of night setting requirement for autoline vessels fishing in Division 58.5.2
fishing in Division 58.5.2 to occur at any time of the day/night cycle. The proposal forms part of an ... adaptive approach to management, which considers the risk status of the fishery, knowledge on the ... effectiveness of mitigation measures, mitigation performance record of the vessel, seabird mortality levels and ... assessment of the likely effects of individual mitigation measures to total mitigation response. Since the ...
Meeting Document : WG-FSA-04/73 : Author(s): G. Robertson and B. Baker (Australia)
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Results of the third CCAMLR sponsored research survey to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea, February 2014 and development of the time series
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... provide results of the third survey in the time series. The objectives of this third survey were: (1) To ... area to identify areas of high subadult abundance which could be included as strata in future annual ... significantly different. Age frequency data from the surveys have shown the progression of a cohort from age 7 ...
Meeting Document : WG-FSA-14/51 : Author(s): S. Mormede, S.J. Parker, S.M. Hanchet, A. Dunn (New Zealand) and S. Gregory (United Kingdom)
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Mapping Application for Penguin Populations and Projected Dynamics (MAPPPD): Data and tools for dynamic management and decision support
Resources (CCAMLR) and Antarctic Treaty System (ATS). The Mapping Application for Penguin Populations ... meeting the management objectives as set forth by CCAMLR and other components of the ATS (i.e ... ., Consultative Meetings and the ATS Committee on Environmental Protection). The database underlying MAPPPD ... ) and Antarctic Treaty System (ATS). The Mapping Application for Penguin Populations and Projected Dynamics ...
Meeting Document : WG-EMM-16/P08 : Author(s): G.R.W. Humphries, C. Che-Castaldo, R. Naveen, M. Schwaller, P. McDowall, M. Schrimpf and H.J. Lynch
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A quantified Bayesian maximum entropy estimate of Antarctic krill abundance across the Scotia Sea and in small-scale management units from the 2000 CCAMLR survey
Abstract: We present the results of an alternative method of estimating krill abundance, and ... producing maps of krill distribution, from the data collected during the 2000 CCAMLR survey of the Scotia ... unsurveyed off-transect portions of the survey area were found by interpolation, and thus values for total ... inferred. The MaxEnt formalism allows an objective choice of the parameters of the interpolation, and hence ...
Meeting Document : WG-EMM-05/42 : Author(s): B.G. Heywood, S.F. Gull and A.S. Brierley (United Kingdom)