Resultados de la búsqueda
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Influence of data quality and quantity from a multiyear tagging program on an integrated fish stock assessment
, fishing, and data collection, this study investigated how the bias and precision of biomass estimates from ... an integrated tag-based assessment are influenced by various aspects of a multiyear tagging program ... , particularly the effects of the size of tagged fish compared with the size of fish in the catch (tag size ... -overlap), numbers of tagged fish, duration of the tagging program, using catch-at-length or catch-at-age ...
Meeting Document : WG-FSA-13/P03 : Autor(es): P. Ziegler
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2018 International Conference on Assessing Status and Trends of Habitats, Key Species and Ecosystems in the Southern Ocean, Hobart, Tasmania, Australia
ecosystems in the Southern Ocean in April 2018. This background paper is an invitation to Members of the SC ... Abstract: The program Integrating Climate and Ecosystem Dynamics, which is a partner program of ... IMBER and SCAR, will be holding a conference on assessing status and trends of habitats, key species and ... -CAMLR to participate in working groups on four themes that will be of benefit to SC-CAMLR: (1 ...
Meeting Document : SC-CAMLR-XXXIV/BG/22 : Autor(es): Delegation of Australia
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Using spatial population models to investigate the effects of a proposed Marine Protected Area on Antarctic toothfish in the Ross Sea region
Abstract: One aim of Marine Protected Areas (MPAs) is to protect a representative portion of ... they usually involve the displacement of fisheries, their design rarely takes into account the effect ... of that fishery’s displacement on the target fish population. We used a spatially explicit population ... model of Antarctic toothfish in the Ross Sea region to investigate the effects of a proposed MPA on the ...
Meeting Document : WG-FSA-15/42 : Autor(es): S. Mormede, A. Dunn, S.J. Parker and S.M. Hanchet (New Zealand)
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REPORT OF SANCTIONS APPLIED BY SPAIN
Hobart Australia Madrid, 21 October 2010 Dear Sir, Re: CCAMLR-IUU I am writing to you to inform you of ... San 33, neither of them flagged to Spain – which were included in the CCAMLR list of illegal vessels ... did not provide proof or evidence in support of this action. However, as a result of the inspection of ... imposed on Vidal Armadores S.A. a fine of 150.000 € as the main penalty as well as further penalties of ...
Meeting Document : CCAMLR-XXIX/BG/37 : Autor(es): Delegation of Spain
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Long-term changes in the size composition of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at Potter Cove, after the 1978–1980 fishery in the area
Abstract: Fish samples collected through an overall period of 24 years at Potter Cove after the ... impact of the fishery in the area in 1978-80, allowed the comparison of the variations in mean annual ... lengths and density distributions of the commercially exploited species N. rossi and G. gibberrifrons with ... the ecologically similar but unexploited N. coriiceps. The sharp decline in the abundance of N. rossii ...
Meeting Document : WG-FSA-07/52 : Autor(es): E.R. Marschoff, E.R. Barrera-Oro and N.S. Alescio (Argentina)
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Standardised CPUE analysis of Antarctic toothfish (Dissostichus mawsoni) fishery in the Ross Sea for the years 1997/98 to 2004/05
) since 1997 in CCAMLR Subareas 88.1 and 88.2. Previously, standardised analysis of toothfish CPUE (catch ... of data from the 2005 season for the Ross Sea (Subarea 88.1 and SSRUs 88.2 A–B) using data sets based ... of the period. We estimate indices using both lognormal generalised linear models and a Tweedie mixed ... addition to extreme ice conditions that limited where lines could be set. None of these factors were ...
Meeting Document : WG-FSA-05/32 : Autor(es): A. Dunn and N.L. Phillips (New Zealand)
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A feasibility study for stock assessment of D. mawsoni in the Ross Sea (Subares 88.1 and 88.2) using a tag and recapture experiment
purpose of stock assessment of the Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea. An ... fishery during the last 3 seasons. A good number of tag recoveries have been reported, mainly within the ... event. It is proposed to continue tag releases each season as part of the exploratory fishery for the ... purpose of determining the stock size of D. mawsoni and sustainable yields for the fishery. Ongoing annual ...
Meeting Document : WG-FSA-SAM 03/10 : Autor(es): K.J. Sullivan, N.W.McL. Smith, J. McKenzie and S.M. Hanchet (New Zealand)
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Biology, distribution and abundance of Antarctic krill (Euphausia superba) and by-catch
collected from 34 stations of fishing area 58 in Indian Ocean sector of Antarctic region between lat.57°53 ... Sampada for the study of biology, distribution and abundance. The samples were collected for a period of ... 18 days from 26th January to 12th February '96. Three types of gears were used viz. Isaacs Kidd ... most abundant size in the fishing area 58. The average sex ratio of male and female Euphausia superba ...
Meeting Document : WG-EMM-98/37 : Autor(es): A. Anrose, Z. Klusek, M.K.R. Nair and M. R. Bhoopendranath (India)
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2010–11
location of fishing together with the catch of Dissostichus spp. and bycatch species by year for the period ... 1997–98 to 2010–11. During the 2010–11 fishing year most of the catch in Subarea 88.1 came from the ... slope SSRUs 88.1H and 88.1I, and SSRU 88.1K. About 63% of the catch limit in the north was taken from ... . Most catch from Subarea 88.2 was taken from SSRU 88.2E but over 100 t was taken from each of SSRU 88.2D ...
Meeting Document : WG-FSA-11/45 : Autor(es): M.L. Stevenson, S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)
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REPORT OF THE UK GROUNDFISH SURVEY AT SOUTH GEORGIA (CCAMLR SUB-AREA 48.3) IN JANUARY 2009
Abstract: In January 2009 the UK undertook a bottom trawl survey of CCAMLR Sub-area 48.3 on the ... FV Sil. A total of 71 random and representative 30 min tows were made giving good geographic coverage ... . The estimated mean biomass of Mackerel icefish (Champsocephalus gunnari) calculated using 10 strata ... , updated sea-floor areas and adjusting for the low headline height of the trawl (see CCAMLR WG-FSA (2003 ...
Meeting Document : WG-FSA-09/09 : Autor(es): M. Belchier, R.E. Mitchell, M.A. Collins, L. Kenny, M. Taylor, J. Nelson and L. Featherstone (United Kingdom)