Search results
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Classification of Southern Ocean krill and icefish echoes using Random Forests
. Antarctic krill, Euphausia superba, are typically identified through a combination of expert scrutiny ... at two or more echosounder frequencies. For commonly used frequencies, however, the differences for krill ... aggregations, which can be difficult to distinguish acoustically from large krill layers. Mackerel icefish ... . To address this, random forests were generated using acoustic and net sample data collected during surveys ...
Meeting Document : WG-EMM-16/23 : Author(s): N. Fallon, S. Fielding and P. Fernandes
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WG-SAM-11
Meeting documents Doc Number Title CCAMLR-XXX/05 Report on the independent review of CCAMLR’s data ... plans in data-poor exploratory fisheries P.E. Ziegler, D.C. Welsford and A.J. Constable (Australia) WG ... for standardising CPUE indices in the Area 48 using the CCAMLR fishery statistics database P. Gasyukov ... , Assessments and Modelling (WG-SAM) WG-SAM-11/04 Deployment of research hauls in the exploratory fisheries ...
Meeting
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Analysis of the by-catch of Channichthys rhinoceratus and Lepidonotothen squamifrons from the fisheries at Heard Island and the McDonald Islands (Division 58.5.2)
squamifrons are among the most common species bycaught in the toothfish and mackerel icefish trawl fisheries ... in the longline fishery, but form the most abundant bycatch of the trawl fisheries after skates (Bathyraja spp ... .). In the toothfish fishery both species are taken, whereas C. rhinoceratus is much more common in the bycatch ... of the mackerel icefish fishery than L. squamifrons. Over the 15 years of the fisheries, approximately 20 ...
Meeting Document : WG-FSA-12/24 : Author(s): G.B. Nowara, D.C. Welsford, S.G. Candy and T.D. Lamb (Australia)
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WG-KRILL-89
to Tuesday, 20 June 1989 Submissions Due: Wednesday, 31 May 1989 Meeting documents Doc Number Title WG-KRILL ... Everson et al., SC-CAMLR-VII/BG/30 WG-KRILL-89/05 Commercial Krill Fisheries in the Antarctic, 1973–1988 ... Full Name: Working Group on Krill Location: La Jolla, USA Date(s): Wednesday, 14 June 1989 ... -89/01 Agenda for the First Meeting of the CCAMLR Working Group on Krill WG-KRILL-89/02 Annotated ...
Meeting
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Estimating seabird by-catch in CCAMLR longline fisheries
Abstract: After many years of close to zero incidental seabird mortality in the longline fishery ... the observer data and to estimate total seabird mortality. Given the high profile of this issue in CCAMLR ... , there is a need for clarity in the data and methods used to report seabird mortality totals. Author ... (s): C. Darby and K. Olsson Title: Estimating seabird by-catch in CCAMLR longline fisheries Microsoft Word File ...
Meeting Document : WG-FSA-17/50 : Author(s): C. Darby and K. Olsson
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An evaluation of reduced target strength estimates reported for krill (Euphausia superba)
on the same experiment and report new calculations of the target strength of krill (Euphausia superba ... ) that propose questioning previous measurements of krill target strength and estimates of abundance derived from ... them. Their results can be shown to have significant weaknesses in both data used and assumptions made ... that they are being cited as a basis for increasing the estimates of krill standing stock in the Antarctic ...
Meeting Document : WG-KRILL-90/13 : Author(s): M.C. Macaulay (USA)
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Documentation for the CCAMLR survey database and length-density analysis
Abstract: Over the past two years, the CCAMLR Data Centre has undertaken a major overhaul ... because of the increasing quantity and diversity of survey data and their importance in the assessments ... of WG-FSA. Historically, trawl survey data and commercial trawl data were managed as a single dataset ... . While appropriate in earlier years, this procedure constricted the type of survey data that could ...
Meeting Document : WG-FSA-00/11 : Author(s): Secretariat
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Male krill grow fast and die young
and the southwest Atlantic sector, and from the krill fishery in the Southern Ocean. The percentage of males in size ... sector, and from the krill fishery in the Southern Ocean. The percentage of males in size classes ... Abstract: The size-differentiated sex ratio (proportion of males: POM) of Antarctic krill ... classes of adult krill was generally high in krill of 30-35 mm total length, always low in 38-42 mm krill ...
Meeting Document : WG-EMM-07/P6 : Author(s): S. Kawaguchi, L.A. Finley, S. Jarman, S.G. Candy (Australia), R.M. Ross, L.B. Quetin (USA), V. Siegel (Germany), W. Trivelpiece (USA), M. Naganobu (Japan) and S. Nicol (Australia)
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Status Report – Macquarie Island Toothfish Fishery
be beneficial for CCAMLR to have an ongoing dialogue with relevant States that manage toothfish fisheries ... a background paper outlining Australia’s management of the subantarctic Macquarie Island toothfish fishery ... . The Macquarie Island toothfish fishery is managed by Australia consistently with the Convention ... that manage toothfish fisheries outside the CCAMLR Area. Author(s): Delegation of Australia Title: Status ...
Meeting Document : CCAMLR-XXXIV/BG/19 : Author(s): Delegation of Australia
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Measurement of capacity in CCAMLR exploratory fisheries in Subareas 88.1 and 88.2: Secretariat update 2016
on the data up 2016 and do not indicate an excess capacity in the fishery. As indicated previously, based ... fisheries in Subareas 88.1 and 88.2. The updated metrics show the same pattern as the metrics based ... a timely closure notice using the current fishery forecasting procedure. Author(s): CCAMLR Secretariat ... Title: Measurement of capacity in CCAMLR exploratory fisheries in Subareas 88.1 and 88.2: Secretariat ...
Meeting Document : WG-FSA-16/05 : Author(s): CCAMLR Secretariat