Resultados de la búsqueda
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Proposed continuation of a multi-Member longline survey on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2018/19 by Japan, South Africa and Spain
integrated assessments of the D.mawsoni stock in this subarea. The Working Group recommended that Spain ... should coordinate its research efforts with Japan and South Africa and encouraged the submission of a ... for 2018/19 season is presented to ensure continuity of previous research activities. Data and ... investigations about the population structure and various demographic parameters of Antarctic toothfish ...
Meeting Document : WG-FSA-18/34 : Autor(es): Delegations of Japan, South Africa and 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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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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Monitoring results of marine debris at Cape Shirreff, Livingston Island during the 1995/96 Antarctic season
Abstract: The principal results of the monitoring survey on marine debris carried out at Cape ... total of 4 251 articles with a total weight of 65.8 kg were obtained. As occurred in previous seasons ... fisheries were 1 195 articles (strapping bands and net pieces). The total density of marine debris collected ... buildt their nests. On the other hand, four specimens of Arctocephalus gazella were observed with neck ...
Meeting Document : CCAMLR-XV/BG/27 : Autor(es): Delegation of Chile
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A CHARACTERISATION OF THE TOOTHFISH FISHERY IN SUBAREAS 88.1 AND 88.2 FROM 1997–98 TO 2007–08
of data collected on toothfish and the associated bycatch by all vessels participating in the fishery ... catch was the fourth highest on record with a total of 2666 t against a combined catch limit of 3207 t ... . The management of the SSRUs within the two subareas was changed for the 2006 season as part of a 3 ... -year experiment (SC-CAMLR-XXIV). One of the aims of the experiment was to simplify the administration ...
Meeting Document : WG-FSA-08/22 : Autor(es): M.L. Stevenson, S.M. Hanchet and A. Dunn (New Zealand)
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The biology and ecology of mackerel icefish, Champsocephalus gunnari – an Antarctic fish species that lack haemoglobin
Abstract: The mackerel icefish (Champsocephalus gunnari) is a prominent member of the coastal ... fish fauna of the Seasonal Pack-ice Zone and the islands north of it. Separated into a number of stocks ... exploited since the beginning of the 1970's with reported annual catches exceeding 50- 100 000 tomes in ... some years. Champsocephalus gunnari has many characteristics typical of Antarctic fish species with ...
Meeting Document : WG-FSA-96/24 : Autor(es): Everson, I., Kock, K.-H.
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Entanglement of pinnipeds at Marion Island
Abstract: Forty-two sightings of 28 individual pinnipeds with neck collars were observed from ... April 1991 to June 1995 at Marion Island, Southern Ocean. One of the individuals was an elephant seal ... . tropicalis. Fifty percent of neck collars on fur seals were removed. The incidence of entanglement of fur ... seals lies between 0,014 and 0,16 % of the population. Author(s): Delegation of South Africa Title ...
Meeting Document : SC-CAMLR-XIV/BG/17 : Autor(es): Delegation of South Africa
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Genetic population structure of the mackerel icefish, Champsocephalus gunnari, in Antarctic waters
Abstract: Genetic population structure of the mackerel icefish, Champsocephalus gunnari, in ... subjected to starch gel electrophoresis. sixteen putative enzyme-coding loci were examined, of which 7 were ... 1.15.1.1). Routine scoring of 358 fish at the 16 loci revealed below average levels of genetic variability ... , with the proportion of polymorphic loci, P = 0.175, mean heterozygosities per locus, HL = 0.058, and ...
Meeting Document : WG-FSA-91/22 : Autor(es): G.R. Carvalho and M. Warren (United Kingdom)