Resultados de la búsqueda
-
A CHARACTERISATION OF THE TOOTHFISH FISHERY IN SUBAREAS 88.1 AND 88.2 FROM 1997/98 TO 2008/09
Subarea 88.1 and for 8 years in Subarea 88.2. During that time a large amount of distributional and ... biological data has been collected on toothfish and the associated bycatch. The purpose of this report is to ... fishery which may be indicative of localised stock depletion. We considered here the catch limit, changes ... in depth/location of fishing, and length and age structure of the population. The catch limit was ...
Meeting Document : WG-FSA-09/36 : Autor(es): S.M. Hanchet, A. Dunn and S. Mormede (New Zealand)
-
On the examining of krill flux
Abstract: In connection with future calculation of volume of krill immigration/emigration (flux ... ) in the choosen polygones, the proves of active long-distance migrations of krill are considered ... results of calculations, is the valuation of krill retention time. To make it more correct and natural it ... is necessary to take into account the biological characteristics of krill, especially for the regions ...
Meeting Document : WG-EMM-95/19 : Autor(es): Makarov, R.
-
A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2012–13
Abstract: This report summarises the timing, depth, and location of fishing together with the ... biological aspects and catch of Antarctic toothfish for the period 1997–98 to 2012–13. In 2012–13, all the ... Ross Sea slope SSRUs were clear of ice and catches were evenly distributed across the three SSRUs. As ... indices were very uncertain due primarily to the lack of a consistent set of vessels over time and may not ...
Meeting Document : WG-FSA-13/48 : Autor(es): S. Hanchet, S. Mormede and A. Dunn (New Zealand)
-
Assessment models for Patagonian toothfish in research block 58.4.3a_1 of Division 58.4.3a, Elan Bank for the years 2005-2014
Abstract: We made two sensitivity runs of age-structured and two fisheries (≥1300 m and < 1300 ... m) CASAL models for stock status assessments of Dissostichus eleginoides in the research block ... 58.4.3a_1 following the recommendations of the WG-FSA-2014 meeting. Two runs were carried out: including or ... ELAN_1 model reflected a large number of recaptures of the tags released concentrated in the western area ...
Meeting Document : WG-SAM-15/24 : Autor(es): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)
-
Evaluation of Antarctic krill biomass and distribution off the South Orkney Islands 2011-2015
Institute of Marine research, Norway near the South Orkney Islands since 2011. The survey has been conducted ... has varied between years in particular due to ice. In order to allow for comparison of distribution ... and abundance of krill near the South Orkneys among years, we here attempt to generate a coherent ... series of krill density estimates from the 5 years of surveys. We follow the CCAMLR protocol for biomass ...
Meeting Document : WG-EMM-15/54 : Autor(es): G. Skaret, B.A. Krafft, L. Calise (Norway), J. Watkins (UK), R. Pedersen and O.R. Godø (Norway)
-
Results of the tagging experiment for (D. eleginoides) in Subarea 48.4, 2007 update
Subarea 48.4, catching 54 t of toothfish. A total of 291 D. eleginoides and 1 D. mawsoni were tagged and ... released during fishing operations. This represents a very high tagging rate of 5.4 fish per tonne of catch ... distributions of abundance around the fishing area. There were two tag recaptures in 2007, both of D ... . eleginoides. These were recaptured 84km and 14km from their points of release. 3. The UK proposes to continue ...
Meeting Document : WG-FSA-07/32 : Autor(es): J. Roberts and D.J. Agnew (United Kingdom)
-
Population numbers of fur seals at Prince Edward Island, Southern Ocean
Abstract: During the period 17–22 December 2001, the onshore distribution and the abundance of ... Prince Edward Island (46°38´S, 37°57´E). Two breeding colonies of Antarctic fur seals were located on the ... south-east coast of the island; the first a mixed (with Subantarctic fur seals) breeding colony with an ... estimated 24 pups on a vegetated promontory on the northern section of Boggel Beach, and the second, a ...
Meeting Document : WG-EMM-03/18 : Autor(es): M.N. Bester, P.G. Ryan and B.M. Dyer (South Africa)
-
Descriptive analysis of acoustic data collected during the 2003 exploratory fishery for toothfish in the Ross Sea
Abstract: This report presents results from a pilot study to determine the feasibility of ... . These analyses focused on the subset of acoustic data collected when setting longlines so acoustic ... recordings could be compared with longline catches. Data quality was generally good. Of the 84 line ... issues with data quality were interference from another echosounder, and the occurrence of a double ...
Meeting Document : WG-FSA-03/28 : Autor(es): R.L. O’Driscoll and G.J. Macaulay (New Zealand)
-
An assessment of temporal variability and interrelationships between CEMP parameters collected on Adélie penguins at Béchervaise Island
Abstract: We examined temporal variability in a series of CEMP parameters collected over the ... the correlation of each parameter with breeding success. Breeding success was measured in terms of 1 ... ) the absolute number of chicks on the island which fully crèche and 2) the number of chicks crèched per ... nest with eggs. We found a low degree of correlation between incubating and brooding nest counts which ...
Meeting Document : WG-EMM-02/46 : Autor(es): L.M. Emmerson, J. Clarke, K. Kerry and C. Southwell (Australia)
-
Fishing intensity of Russian fleet krill fishery in Subarea 48.2 and 48.3
Abstract: The purpose of this paper was estimating commercial fleet impact on krill population in ... and 48.3 amounted to at least 95% of total catch. The calculations were based on the Soviet fleet haul ... -by-haul data using a model of probabilistic-statistical theory of fishery systems developed in the ... AtlantNIRO. Intensity of commercial fleet impact on krill population, on biomass and density of krill ...
Meeting Document : WG-EMM-02/62 : Autor(es): S.M. Kasatkina and V.F. Ivanova (Russia)