Resultados de la búsqueda
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WG-FSA-86
documents Doc Number Title WG-FSA-86/01 Preliminary Results of a Bottom Trawl Survey Around Elephant Island ... in May/June 1986 K.-H. Kock (FRG) WG-FSA-86/02 Assessments of the Stocks of Notothenia rossii ... Fishing Data Collected in the South Georgia Area During the 1985/1986 Cruise of MT Carina W. Ślósarczyk WG ... -FSA-86/05 Preliminary Appraisal of Antarctic Fish Selection by the 32/36 Bottom Trawl Combined with ...
Meeting
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Seasonal relationships in biological parameters and in spatial distribution in the euphausiid populations sampled during the XIIIth and XVth expedition to the Ross Sea
Abstract: This report summarises the results of krill studies from a large-scale surveys of the ... samples data on Euphasiids were analysed at the aim of: 1) obtain a general picture of interannual and ... seasonal variability of distribution pattern and abundance of Euphausia superba and Euphausia ... of E. superba and its possible spatial and temporal variations across the investigated area. The ...
Meeting Document : WG-EMM-01/62 : Autor(es): M. Azzali, J. Kalinowski, G. Lanciani, I. Leonori and A. Sala (Italy)
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Improvements to the multiple-frequency method for in situ target strength measurements
to improve the accuracy and precision of in-situ target strength (TS) measurements using split-beam ... improves the rejection of unresolvable and constructively interfering target multiples by combining ... synchronized signals from two or more adjacent split-beam transducers of different frequencies which are not ... integer multiples of each other. In this study, the method itself was improved by: 1) optimizing the ...
Meeting Document : WG-EMM-99/38 : Autor(es): D.A. Demer (USA) and M.A. Soule (South Africa)
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UPDATED BIOLOGICAL PARAMETERS FOR THE ANTARCTIC STARRY SKATE, AMBLYRAJA GEORGIANA, FROM THE ROSS SEA
Abstract: Photographs of skates taken by observers on New Zealand toothfish longliners in the ... Ross Sea were identified to species. Sample sizes were small, but indicated a ratio of 10.75:1 of ... of tagged skates. Biological parameters were reviewed and updated for Amblyraja georgiana. Revised ... relationships differ significantly. Better estimates of median length at maturity were made possible through a ...
Meeting Document : WG-FSA-08/20 : Autor(es): M.P. Francis and S. Mormede (New Zealand)
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Climate change and zooplankton dominance in the Antarctic marine ecosystem: implications for the food web
Abstract: There is a growing body of evidence that the climate of the Antarctic Peninsula region ... has been warming over the past 40 years with an associated decreased frequency of winters with ... function of the Antarctic marine ecosystem. In the Antarctic Peninsula region winter sea-ice coverage is a ... major factor regulating recruitment and population size of Antarctic krill (Euphausia superba) and ...
Meeting Document : WG-EMM-96/21 : Autor(es): Siegel, V., Fraser, W., Trivelpiece, S., Holm-Hansen, O., Loeb, V., Hewitt, R., Trivelpiece, W.
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Has climate change promoted genetic fragmentation in the ice-dependent fish Pleuragramma antarcticum?
genetic study investigated the population structure of this species, but used mitochondrial DNA sequencing ... and was unable to discriminate between hypotheses of panmixia, with occasional fluctuations of gene ... investigate the population structure of P. antarcticum along the Antarctic Peninsula (AP) shelf, a region of ... Antarctica highly impacted by regional warming. We found a single gene pool and an absence of inter-annual ...
Meeting Document : WG-FSA-13/67 : Autor(es): C. Agostini, T. Patarnello (Italy), J. Ashford, J. Torres (USA) and L. Zane (Italy)
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Finfish distribution and abundance in Subareas 48.1 and 48.2, 2016–2018. Research proposal for the second year
Abstract: According to the experience gained in the first phase of the research and observations ... made by WG-SAM-16, a new proposal is provided to determine the distribution and abundance of fish in ... of Elephant Island and north of South Orkney Islands, between 100 and 500 m of depth (Depth strata ... daily stages of operation, performed with a midwater trawl, with six random spatially distributed hauls ...
Meeting Document : WG-FSA-16/31 : Autor(es): Delegation of Chile
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Using additional information for generalised yield model
Abstract: It has been suggested a method of GY-model adjustment to the additional data of ... observations represented as abundance indices. Catch per effort values or results of inventory surveys can ... serve as such indices. Adjustment basic concept is a selection of those GY-models from realization sets ... a certain function of which runs through the set of points defined by confidence intervals of ...
Meeting Document : WG-FSA-99/60 : Autor(es): P.S. Gasiukov (Russia)
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New data on depths inhabited by striped-eyed rock cod Lepidonotothen kempi (Norman) (Nototheniidae) off Bouvet Island
Abstract: In 2010 on the southern slope of Bouvet Island, I found L. kempi at still greater depth ... in the course of fishery for toothfish onboard of 1 Insung Korean longliner. In the first case ... , mature specimens with absolute length (TL) of 39–45 cm and weight of 0.8–1.3 kg were found in stomachs of ... Antarctic toothfish caught at depths of 1500–1900 m. In the second case at 54°32′7 S and 03°46′8 W, three ...
Meeting Document : WG-FSA-11/P02 : Autor(es): A.F. Petrov
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Recent information relevant to squid resources in the Convention Area
adjacent to the Convention Area, with a catch in excess of 12,000 tonnes. Recent improvements in processing ... waters. Although regulations for fishing of squid in nearby waters provide a useful model framework ... , management of a Martialia fishery by CCAMLR would require a better understanding of the distribution and ... demography of the species. The results of recent studies of the ecological niche of Martialia at the Polar ...
Meeting Document : SC-CAMLR-XIV/BG/22 Rev. 1 : Autor(es): Delegation of the United Kingdom