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CCAMLR

Comisión para la Conservación de los Recursos Vivos Marinos Antárticos

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  1. A proposal for large scale sampling of krill in the diet of predators across Area 48 to coincide with the CCAMLR synoptic survey

    Abstract:  There is a high degree of spatial and temporal variability in the population of ... Antarctic krill Euphausia superba across the Scotia Sea. Resolution of the spatial component of this ... variability requires a 'snapshot' of the krill population over the region (eg the CCAMLR B0 survey ... ) whereas temporal changes have been addressed using time-series of samples from the diet of predators. At ...

    Meeting Document : WG-EMM-99/33 : Autor(es): K. Reid (United Kingdom)

  2. A model at the level of the foraging trip for the indirect effects of krill (Euphausia superba) fisheries on krill predators

    Abstract:  We present a model at the level of the foraging trip for the effects of a fishery on ... . The model involves: (i) the description of the biomass and spatial distribution of krill; (ii) the ... effects of the fishery on the krill; (iii) the description of penguin breeding; and (iv) the indirect ... effects of the fishery on penguin reproduction and survival. The objective is to make relative comparisons ...

    Meeting Document : WG-EMM-98/48 : Autor(es): M. Mangel and P.V. Switzer (USA)

  3. OTOLITH-BASED AGEING OF THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS: MODELLING FIXED AND RANDOM READER ERROR USING MULTIPLE READINGS OF A REFERENCE COLLECTION

    resulting from the imprecision of age determination using annual ring counts from otoliths. This paper ... assessment using repeat readings by 4 readers of a set of 203 reference otoliths sampled from the HIMI ... fishery. The methods of sampling, preparing, reading, and modelling random reader error for this reference ... set of otoliths is described. A total of 933 readings were taken and errors were defined as the ...

    Meeting Document : WG-FSA-09/21 : Autor(es): S.G. Candy, G.B. Nowara, D.C. Welsford and J.P. McKinlay (Australia)

  4. OTOLITH-BASED AGEING OF THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS: MODELLING FIXED AND RANDOM READER ERROR USING MULTIPLE READINGS OF A REFERENCE COLLECTION

    resulting from the imprecision of age determination using annual ring counts from otoliths. This paper ... assessment using repeat readings by 4 readers of a set of 203 reference otoliths sampled from the HIMI ... fishery. The methods of sampling, preparing, reading, and modelling random reader error for this reference ... set of otoliths are described. A total of 933 readings were taken and errors were defined as the ...

    Meeting Document : WG-SAM-09/07 : Autor(es): S.G. Candy, G.B. Nowara, D.C. Welsford and J.P. McKinlay (Australia)

  5. The state of exploited fish stocks in the Atlantic sector of the Southern Ocean

    Abstract:  Finfish have been harvested in the Atlantic sector of the Southern Ocean since the end ... of the 1960s mainly by the Soviet Union. Notothenia rossii marmorata,vas the target species in the ... Patagonotothen brevicauda guntheri. Catches of C. gunnari were highest at about 240,000, 220,000 and 100,000 ... adversely affected by the fishery. The present stock size around South Georgia is less than 5 % of the level ...

    Meeting Document : SC-CAMLR-VIII/BG/18 : Autor(es): Delegation of Federal Republic of Germany

  6. THE ROSS SEA ANTARCTIC TOOTHFISH FISHERY: REVIEW OF THE 3-YEAR EXPERIMENT AND DEVELOPMENT OF MEDIUM-TERM RESEARCH OBJECTIVES AND AN OPERATIONAL FRAMEWORK FOR THE FISHERY

    Abstract:  The aim of this paper is to review the recent management of the Ross Sea toothfish ... framework to achieve those objectives. The paper focuses primarily on Antarctic toothfish, as catches of ... fishery over the next 5–7 years in relation to Article II of the Convention, and to develop an operational ... operational management and conduct of the fishery up to the 2004–05 fishing year (prior to the start of the 3 ...

    Meeting Document : WG-FSA-08/50 : Autor(es): Delegation of New Zealand

  7. Preliminary analyses of data collected during experimental phases of the 1994/95 and 1995/96 Antarctic crab fishing seasons

    Abstract:  Data collected from the FN American Champion during Phases 1 and 2 of the experimental ... generalized additive models show that the density of fishable P. spinosissima is highest off the northern ... coast of South Georgia and at depths between about 100 and 300 fathoms. The Phase 1 results suggest that ... it would not be appropriate to extrapolate local estimates of abundance to the whole of Subarea 48.3 ...

    Meeting Document : WG-FSA-96/34 : Autor(es): Watters, G.

  8. Analysis of changes in biomass of fish stocks in the South Georgia Area in 1976/77 – 1986/87

    Abstract:  The swept area method was used to estimate biomass density changes in the stocks of ... , Notothenia gibberifrons, and Notothenia rossii marmorata in the South Georgia area in the seasons of 1916/77 ... -1986/87. In most of the seasons analysed, the estimates covered a near-bottom layer in about 1/6 of the ... area of the island shelf. Assessment results point to considerable variations in fish biomass density ...

    Meeting Document : WG-FSA-87/10 : Autor(es): M. Mucha and W. Ślósarczyk (Poland)

  9. Dynamics of abundance and state of Notothenia rossii rossii stocks on the Kerguelen Island shelf

    Abstract:  Population structure and dynamics of the abundance of Notothenia rossii rossii on the ... Kerguelen Island shelf from the beginning of the fishery to 1984 has been examined.Total and commercial ... stocks of this species have been determined proceeding from data of inventory trawl survey and ... calculation by mathematical modelling.Comparative estimates of the abundance and recruitment-remainder ratio ...

    Meeting Document : WG-FSA-90/41 : Autor(es): P.B. Tankevich and V.A. Shlyakhov (YugNIRO, USSR)

  10. Analysis of changes in biomass of fish stocks in the south Georgia Area in 1976/77 – 1986/87

    Abstract:  The swept area method was used to estimate biomass density changes in the stocks of ... , Notothenia gibberifrons, and Notothenia rossii marmorata in the South Georgia area in the seasons of 1976/77 ... -1986/87. In most of the seasons analysed, the estimates covered a near-bottom layer in about 1/6 of the ... area of the island shelf. Assessment results point to considerable variations in fish biomass density ...

    Meeting Document : SC-CAMLR-VI/BG/40 : Autor(es): M. Mucha and W. Ślósarczyk (Poland)

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Correo electrónico: ccamlr [at] ccamlr [dot] org
Teléfono: +61 3 6210 1111
Facsímil: +61 3 6224 8744
Dirección: 181 Macquarie Street, Hobart, 7000, Tasmania, Australia

 

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