Search results
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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 ... per hook) have been carried out in 2004 calculated CPUE indices for the 1997–98 to 2003–04 fishing ... years in Subarea 88.1 and 88.2. This report revises and updates the previous analysis with the addition ... on (a) all vessels and (b) the two main New Zealand vessels that have been in the fishery over most ...
Meeting Document : WG-FSA-05/32 : Author(s): A. Dunn and N.L. Phillips (New Zealand)
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Recent trends in numbers of four species of penguins at the Prince Edward Islands
and southern rockhopper penguin E. chrysocome. In December 2008 it was estimated that some 65 000 ... pairs of king penguins were incubating eggs at Marion Island, the larger of the two islands in the group ... in numbers of king penguin chicks that survived to the end of the winter period, but there was ... considerable fluctuation in chick production in the 1990s. It was roughly estimated that on average 88% of king ...
Meeting Document : WG-EMM-10/P01 : Author(s): R.J.M. Crawford, P.A. Whittington, L. Upfold, P.G. Ryan, S.L. Petersen, B.M. Dyer and J. Cooper
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Simulations to evaluate model performance for Antarctic toothfish stock assessment in the Amundsen Sea region
shown promising results to date, with 8 interseason tags recaptured in the South area in 2016 and 12 ... (preliminary recaptures) in 2017. The aim of this paper is to ascertain when the Amundsen Sea region stock ... in estimates of biomass, the likely biases, and to set expectations for mark-recapture data for the ... models showed that using two independent models lead to higher estimates of biomass in the North and ...
Meeting Document : WG-SAM-17/40 : Author(s): S. Mormede and S. Parker
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Entanglement in man-made debris of Antarctic fur seals at Bird Island, South Georgia
Abstract: The incidence of entanglement in man-made debris by Antarctic fur seals (Arctocephalus ... their collars removed. This represents a reduction of 88% in the number of entangled seals reported in ... comparison to the same time period in 1988/89. Possible causes suggested for this observed reduction in ... entanglement include a reduction in fishing activity in the South Georgia area, a decrease in the amount of ...
Meeting Document : CCAMLR-X/BG/05 : Author(s): Delegation of UK
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Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys
around the coasts of the South Shetland and South Orkney Islands. Krill catches in these zones are shown ... to have a consistent pattern in Subarea 48.1 but an unpredictable distribution in Subarea 48.2 ... , probably as a result of more variable hydrographic conditions. About 50% of the catch in Subarea 48.1 from ... December to March was taken within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 ...
Meeting Document : WG-KRILL-92/19 : Author(s): D.J. Agnew (Secretariat)
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Soviet krill fishery in 1977–1992, Part 1. Distribution, fishing effort, interannual situation patterns
Abstract: The data on Soviet krill fishery in i977-1992 are presented. The fishing effort (FE ... ) developed in 1977-1991 was 50086 fishing days in total. According to the pictures presented FE was ... types of FE distribution in subsequent groups of years: Type I: 1981 and 1982, partly 1979/1980: FE was ... concentrated in subarea 48.1 in January-April, then moved to 48.3 via 48.2. Type II: 1983, 1984, 1985, and 1986 ...
Meeting Document : WG-EMM-01/57 : Author(s): F.F. Litvinov, V.A. Sushin, G.A. Chernega and O.A. Berezhinskiy (Russia)
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Characterisation of skate catches in the Ross Sea region
Abstract: The toothfish fishery in the Ross Sea region (CCAMLR Subareas 881 and 882) has been ... less). In this paper we summarise the current available fisheries and biological information for skates ... in the Ross Sea Region, including the data collected in the two “Year of the Skate” fishing seasons ... in 2008/09 and 2009/10. The composition of the skate catch by species is uncertain; it is estimated ...
Meeting Document : WG-FSA-10/25 : Author(s): S. Mormede and A. Dunn (New Zealand)
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Descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 & 88.2 for the years 2000–01 to 2014–15
Abstract: We provide an update of the descriptive analyses of the toothfish tagging programme in ... and 2473 recaptured, and 1191 Patagonian toothfish released and 103 recaptured since 2001. In recent ... catch in the Ross Sea region. Tag recapture data showed that most fish are recaptured only a short ... . The 308 recaptures in the Ross Sea region in 2014 was the highest observed, which then reduced to 183 ...
Meeting Document : WG-FSA-15/37 : Author(s): S.J. Parker and S. Mormede (New Zealand)
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Characterisation of the toothfish fishery in the Ross Sea region (Subarea 88.1 and SSRUs 88.2A–B) through 2018/19
Abstract: This report summarises fishing catch and effort in the Ross Sea region (Subarea 88.1 ... the 2019 season. The implementation of the Ross Sea Region Marine Protected area in December of 2017 ... distributions showed no trends in the different management areas; interannual variability is likely driven by ... spatial patterns in fishing. The strongest time trend in the data is the change in the sex ratio over time ...
Meeting Document : WG-FSA-2019/07 : Author(s): J. Devine, S. Parker and A. Dunn
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Preliminary analyses in support of the CEMP Review Workshop: serial correlations
Abstract: As part of the preliminary analyses undertaken in preparation for the CEMP Review ... Workshop, the Secretariat has documented serial correlation in time series of CEMP indices. The values ... input to the serial correlation analysis were the ‘transformed’ annual index values reported in WG-EMM ... -03/24. Serial correlation in biological indices occurred in 4, 10 and 33 % of the time series at ...
Meeting Document : WG-EMM-03/27 : Author(s): Secretariat