Search results
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Preliminary reports on abundance and biological information on toothfish in Divisions 58.4.4a and 58.4.4b by Shinsei Maru No. 3 in the 2009/10 season
longline vessel, Shinsei Maru No. 3, from April 30 to June 20. The survey was undertaken according ... vessel, Shinsei Maru No. 3, from April 30 to June 20. The survey was undertaken according to the decision ...
Meeting Document : WG-SAM-10/14 : Author(s): K. Taki, M. Kiyota and T. Ichii (Japan)
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A new approach to selecting Marine Protected Areas (MPAs) in the Southern Ocean
to address and potentially overcome these limitations. Drawing upon a database spanning more than 20 years ... these limitations. Drawing upon a database spanning more than 20 years and containing approximately 140 000 records ... of surrogates to assist in the identification of areas of high conservation value is one possible mechanism ... in the identification of areas of high conservation value is one possible mechanism to address and potentially overcome ...
Meeting Document : WS-BSO-07/P3 : Author(s): Harris, J., M. Haward, J. Jabour and E.J. Woehler
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POPULATION ASSESSMENTS OF GENTOO PENGUINS (PYGOSCELIS PAPUA) BREEDING AT AN IMPORTANT ANTARCTIC TOURIST SITE, GOUDIER ISLAND, PORT LOCKROY, PALMER ARCHIPELAGO, ANTARCTICA
Peninsula; it is one of the most frequently visited tourist sites in Antarctica. A number of gentoo penguin ... (Pygoscelis papua) breeding colonies are located on the island and these have been the focus of one ... consecutive years beginning in the 1996/1997 breeding season. Our results demonstrate that all colonies show ... . Of the six visited colonies, two showed an important and significant statistical decline in the number ...
Meeting Document : WG-EMM-09/P07 : Author(s): P.N. Trathan, J. Forcada, R. Atkinson, R.H. Downie and J.R. Shears
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A perspective on steepness, reference points, and stock assessment
for steepness. Ways out of the difficult situation raised by fixing steepness and life history parameters ... for steepness. Ways out of the difficult situation raised by fixing steepness and life history parameters ...
Meeting Document : WG-FSA-14/P05 : Author(s): M. Mangel, A.D. MacCall, J. Brodziak, E.J. Dick, R.E. Forrest, R. Pourzand and S. Ralston
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Bird Island, South Georgia during the 1998 winter and 1998/99 pup-rearing season
records started. Two animals (15 %) were entangled in polypropylene straps, down by 50 % on the 1997 ... of animals showing severe injuries (30 %) was a contrast to 1997/98 when none was noted. Entanglements ... was 39 %, up threefold on the 1997 winter and the third highest total since records started. Two animals ... on the 1997 winter total and an 87 % decrease on the highest previous total (1992). The proportion of animals ...
Meeting Document : SC-CAMLR-XVIII/BG/05 : Author(s): Delegation of the United Kingdom
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Stock structure of Antarctic toothfish in Statistical Area 88 and implications for assessment and management
, growth dynamics, and egg and larval dispersal simulations. Taken together, the information suggests two ... , and egg and larval dispersal simulations. Taken together, the information suggests two biological stocks ...
Meeting Document : WG-SAM-14/26 : Author(s): S.J. Parker, S.M. Hanchet and P.L. Horn (New Zealand)
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Estimation of natural mortality using catch-at-age and aged mark-recapture data: a simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation
were generated for 12 years of fishing. Two alternative estimation models were programmed in R. Both ... generated for 12 years of fishing. Two alternative estimation models were programmed in R. Both use the same ... -structured population for each fishing year by annual recursive use of difference equations for population ... numbers at age obtained by integrating a first order ordinary differential equation (ODE) for within-year ...
Meeting Document : WG-SAM-10/11 Rev. 1 : Author(s): S.G. Candy (Australia)
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Proposal for a CCAMLR-sponsored research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea
years in Subarea 88.1 and for nine years in Subarea 88.2. The research and assessment work ... to an estimate of the fisheries potential yield. However, one source of ongoing uncertainty in the stock ... locations in different years, making it impossible to develop a consistent time series that would monitor ... request. We propose that the first survey be a pilot, with two main objectives: (i) To establish ...
Meeting Document : SC-CAMLR-XXX/07 : Author(s): Delegation of New Zealand
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A statistical method for analysing the extent of IUU fishing in CCAMLR waters: application to Subarea 48.3
/01. Each year covered fully the period 1 October – 30 September, thus including one summer and one ... fully the period 1 October – 30 September, thus including one summer and one winter period ... the total number of days of IUU fishing that could occur during each year. For each IUU incident detected ... model. For each year, the model simulated 1000 IUU fishing incidents during the year, and from the known ...
Meeting Document : WG-FSA-02/4 : Author(s): D.J. Agnew and G.P. Kirkwood (United Kingdom)
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SOUTHERN OCEAN SENTINEL: AN INTERNATIONAL PROGRAM TO ASSESS CLIMATE CHANGE IMPACTS ON MARINE ECOSYSTEMS
Abstract: Assessment and predictive models need to be developed to provide two assessments ... a Southern Ocean Sentinel program’, which was held at CCAMLR Headquarters in Hobart, Australia, on 20-24 ... ;to provide two assessments of climate change impacts for use ... Headquarters in Hobart, Australia, on 20-24 April 2009. ...
Meeting Document : SC-CAMLR-XXVIII/BG/17 : Author(s): Delegation of Australia