Результаты поиска

1. Phase-randomisation in an integrated assessment model for Antarctic krill

   Abstract:  An integrated model was configured to estimate eighteen different subsets of 119 total ... parameters in alternative configurations of a model assessing the status and productivity of Antarctic krill ... 48.1, a statistical reporting area used by the Commission for the Conservation of Antarctic Marine ... Living Resources (CCAMLR). The number of estimated parameters was gradually increased across model ...

   Meeting Document : WG-SAM-17/31 : Автор(ы): D. Kinzey, G.M. Watters and C.S. Reiss

2. 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 : Автор(ы): M. Azzali, J. Kalinowski, G. Lanciani, I. Leonori and A. Sala (Italy)

3. 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 : Автор(ы): D.A. Demer (USA) and M.A. Soule (South Africa)

4. 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 : Автор(ы): M.P. Francis and S. Mormede (New Zealand)

5. 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 : Автор(ы): Siegel, V., Fraser, W., Trivelpiece, S., Holm-Hansen, O., Loeb, V., Hewitt, R., Trivelpiece, W.

6. 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 : Автор(ы): C. Agostini, T. Patarnello (Italy), J. Ashford, J. Torres (USA) and L. Zane (Italy)

7. 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 : Автор(ы): Delegation of Chile

8. 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 : Автор(ы): P.S. Gasiukov (Russia)

9. 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 : Автор(ы): A.F. Petrov

10. 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 : Автор(ы): Delegation of the United Kingdom

Страницы