Resultados de la búsqueda
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Predation release of Antarctic silverfish (Pleuragramma antarctica) in the Ross Sea
Abstract: Between 2001 and 2013 the number of breeding pairs of Adélie penguins (Pygoscelis ... adeliae) at breeding colonies in the southern Ross Sea more than doubled from about 235 000 to more than ... contributed to the increase in Adélie penguin numbers. This paper brings together information on the biomass ... , consumption rates and diets of toothfish and Adélie penguins over the Ross Sea shelf as a first test of the ...
Meeting Document : WG-EMM-15/53 : Autor(es): M.H. Pinkerton, P. Lyver, D. Stevens, J. Forman, R. Eisert and S. Mormede (New Zealand).
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ANNUAL CHANGES IN SPECIES COMPOSITION AND ABUNDANCE OF BY-CATCH FISH COLLECTED BY JAPANESE KRILL SCIENTIFIC OBSERVERS IN THE NORTH OF SOUTH GEORGIA (CCAMLR SUBAREA 48.3), DURING AUSTRAL WINTER FROM 2002 TO 2008
Abstract: Species composition and abundance of by-catch fish were analyzed using the fish by ... -catch samples collected by scientific observers onboard Japanese commercial krill fishing vessels in the ... north of South Georgia during the austral winter from 2002 to 2008. A total of 19 species belonging to 8 ... families were identified in the by-catch samples, among which the 3 species, Krefftichthys anderssoni ...
Meeting Document : WG-EMM-11/40 : Autor(es): T. Iwami, K. Taki and M. Kiyota (Japan)
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Reconciling fisheries with conservation: three examples from the Southern Ocean
Abstract: Preservation of ecosystem structure is the guiding principle by which the Commission ... for the Conservation of Antarctic Marine Living Resources (CCAMLR) endeavors to manage the harvests of ... living resources of the Southern Ocean (with the notable exception of marine mammals). The experiences of ... (Champhsocephalus gunnari) and Patagonian toothfish (Dissostichus eleginoides) are reviewed. The unifying paradigm ...
Meeting Document : WG-EMM-04/48 : Autor(es): R.P. Hewitt (USA), I. Everson (United Kingdom) and C.D. Jones (USA)
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Reassessment of important population parameters for Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on time series of surveys and fishery data
Abstract: A large body of data and techniques are available for re-assessing the biological ... parameters and recruitment of Patagonian toothfish, Dissostichus eleginoides, in the Heard Island region. A ... new survey of the Heard Island Plateau was undertaken in May- June 2001, providing the sixth survey ... over 11 years on this stock with other surveys including part of this stock. This paper describes the ...
Meeting Document : WG-FSA-01/73 : Autor(es): A.J. Constable, R. Williams, T. Lamb, I.R. Ball and E. van Wijk (Australia)
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SOUTHERN OCEAN SENTINEL: REPORT OF THE FIRST INTERNATIONAL WORKSHOP IN 2009
Abstract: The first international workshop on implementing a Southern Ocean Sentinel program was ... held at the CCAMLR Headquarters in Hobart in April 2009. The conclusions of that workshop are provided ... to WG-EMM for consideration along with an overview, the program and abstracts of the keynote ... presentations. A report of the workshop will be submitted to the Scientific Committee for its considerations in ...
Meeting Document : WG-EMM-09/37 : Autor(es): A.J. Constable
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LENGTH-BASED ASSESSMENT FOR THE MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) IN SUB-AREA 48.3
Abstract: The current assessment method for the mackerel icefish (Champsocephalus gunnari) in sub ... -area 48.3 employs the CMIX and GYM packages, deriving population numbers-at-age then projecting these ... numbers forward under the given harvest control rule to set a two-year TAC. One issue is the accurate ... identification of cohorts from the survey model, given the differential age structures observed in the population ...
Meeting Document : WG-SAM-09/15 : Autor(es): R.M. Hillary, D.J. Agnew and R. Mitchell (United Kingdom)
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THE WHITE-CHINNED PETREL (PROCELLARIA AEQUINOCTIALIS) ON SOUTH GEORGIA: POPULATION SIZE, DISTRIBUTION AND GLOBAL SIGNIFICANCE
fisheries than probably any other seabird in the world, but the population impact of this mortality is ... poorly understood, partly because there have been no estimates of the species’ abundance in recent ... decades. The largest breeding aggregation, comprising the majority of the worldwide total, is believed to ... be on the sub-Antarctic island of South Georgia. We estimated the size of this population by ...
Meeting Document : WG-EMM-PSW-08/05 : Autor(es): A.R. Martin, S. Poncet, C. Barbraud, P. Fretwell and E. Foster (United Kingdom)
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IMPLEMENTATION OF FOOSA (KPFM) IN THE EPOC MODELLING FRAMEWORK TO FACILITATE VALIDATION AND POSSIBLE EXTENSION OF MODELS USED IN EVALUATING KRILL FISHERY HARVEST STRATEGIES THAT WILL MINIMISE RISK OF LOCALISED IMPACTS ON KRILL PREDATORS
-structured harvest strategies for krill, has been implemented within the EPOC modelling framework. It also ... shows how the parameters developed for use in FOOSA can be adapted for use in EPOC. The paper has three ... main parts – an outline of the structure of EPOC, consideration of the general FOOSA structure that ... needs to be implemented and a description of the implementation of FOOSA in EPOC. The latter section ...
Meeting Document : WG-SAM-08/15 : Autor(es): A. Constable (Australia)
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Modeling the growth dynamics of Antarctic krill
examine the growth dynamics of Antarctic krill, Euphausia superba. A system of coupled, ordinary ... differential equations was developed to describe the growth of krill between 2 and 60 mm. The metabolic ... processes included in the model were ingestion, assimilation efficiency, a baseline respiration. respiratory ... resulted in the transfer of individuals to the next highest size class (growth), whereas negative net ...
Meeting Document : WG-EMM-96/68 : Autor(es): Lascara, C.M., Hofmann, E.E.
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Pre-spawning and spawning biology of the Patagonian toothfish, Dissostichus eleginoides, around South Georgia (Subarea 48.3)
Abstract: Samples gathered from research expeditions of the longliners Medvezhy (April-June 1986 ... ) as well as Maksheevo and Mirgorod (June-July 1992) have produced new data on the biology of the ... reproductive part of the Dissostichus eleginoides population in Subarea 48.3. Analysis and synthesis of these ... data have established the bathymetric distribution patterns for different size-groups of toothfish ...
Meeting Document : WG-FSA-92/13 : Autor(es): I.N. Konforkin and A.N. Kozlov (VNIRO, Moscow, Russia)