Search results
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LENGTH-BASED ASSESSMENT FOR MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) IN SUB-AREA 48.3
) in sub‐area 48.3 employs the CMIX and GYM packages, which derives population numbers‐at‐age and ... accurate identification of age cohorts from the survey data. In this paper we describe a length‐based ... the survey data which, in conjunction with the bootstrapped survey biomass data, yields an estimate of ... methodology showed very good agreement in calculated yields for 2006, 2007 and 2009, and some differences for ...
Meeting Document : WG-FSA-09/27 : Author(s): R.M. Hillary (Australia), C.T.T. Edwards, R.E. Mitchel and D.J. Agnew (United Kingdom)
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Research plan for the Spanish exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2: Update of stage 2 (2013/14 season) and preliminary results of stage 1 (2012/13 season) according to WG-SAM advice
longline fishery for Dissostichus spp in Divisions 58.4.1 and 58.4.2, submitted to the XXXII-WG-SAM, taking ... research plan in the 2012/13 season using the Spanish bottom longline system. One depletion experiments was ... completed in each of the SSRU surveyed (58.4.1H and 58.4.1G). Three prospecting-phase clusters of sets did ... analysis of relevant sea-ice conditions in the last 11 seasons in these areas along with a summary of the ...
Meeting Document : WG-FSA-13/15 : Author(s): R. Sarralde, L.J López Abellán and S. Barreiro (Spain)
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Can otolith elemental signatures record the capture site of Patagonian toothfish (Dissostichus eleginoides), a fully marine fish in the Southern Ocean?
. However, application has been more limited in species exposed exclusively to oceanic waters, where ... gradients in physical and chemical properties are less extreme. To test whether otolith elemental signatures ... record spatial information in an oceanic species, we sampled otoliths from Patagonian toothfish ... America and in the Antarctic were misclassified to sampling areas in the other region. Moreover, edge ...
Meeting Document : WG-FSA-06/P1synpro : Author(s): Ashford, J.R., C.M. Jones, E. Hofmann, I. Everson, C. Moreno, G. Duhamel and R. Williams
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Can otolith elemental signatures record the capture site of Patagonian toothfish (Dissostichus eleginoides), a fully marine fish in the Southern Ocean?
. However, application has been more limited in species exposed exclusively to oceanic waters, where ... gradients in physical and chemical properties are less extreme. To test whether otolith elemental signatures ... record spatial information in an oceanic species, we sampled otoliths from Patagonian toothfish ... America and in the Antarctic were misclassified to sampling areas in the other region. Moreover, edge ...
Meeting Document : WG-FSA-06/P1text : Author(s): Ashford, J.R., C.M. Jones, E. Hofmann, I. Everson, C. Moreno, G. Duhamel and R. Williams
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Notes on the availability of three important finfish species in offshore waters of the lower South Shetland Islands (Subarea 48.1)
Abstract: In 1998, an offshore scientific trawl survey of bottom fish sampling within the 50-500 ... m isobath of the lower South Shetlands Islands (King George Island to Low Island) was conducted. In ... gibberifrons has been monitored relative to another potentially exploitable fish, Notothenia coriiceps, in the ... relationships for these three species. In general, these two data sets are complementary, and demonstrate well ...
Meeting Document : WG-FSA-99/31 : Author(s): C.D. Jones (USA), E.R. Barrera-Oro, E.R. Marschoff and R.J. Casaux (Argentina)
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Results of the Dissostichus spp. new fisheries projects in the Antarctic region (CCAMLR Statistical Subareas 48.1, 48.2 and 88.3)
part of the New Fisheries Projects developed by Chile, mainly in order to establish presence of ... Dissostichus spp. in the CCAMLR Statistical Subareas 48.1, 48.2 and 88.3. Industrial longlines Spanish system ... toothfish (D. eleginoides) was captured from King George Island, in the Antarctic-Pacific Ocean (latitude 61 ... °24'S) to the Scottish Sea in the Antarctic-Atlantic (Latitude 58°01'S). The Dissostichus ...
Meeting Document : SC-CAMLR-XVII/BG/07 Rev. 1 : Author(s): Delegation of Chile
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Milk consumption and growth efficiency in Antarctic fur seal (Arctocephalus gazella) pups
consumption was determined on 388 occasions in 177 pups. Mean estimates of milk consumption ranged from 2.5 to ... 2-day maternal attendance periods (feeding bouts). There were no differences in milk consumption ... between the sexes in any year. Both per-bout and per-day milk consumption increased steadily with age ... before decreasing significantly in the last 30-40 days of lactation. Per-bout milk consumption was ...
Meeting Document : WG-EMM-97/11 : Author(s): Socha, D.G., Arnould, J.P.Y., Boyd, I.L.
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Population dynamics of wandering albatross Diomedea exulans and Amsterdam albatross D. amsterdamensis in the Indian Ocean and their relationships with longline fisheries: conservation implications
Abstract: Studies carried out over the past three decades at Crozet and Kerguelen Islands in the ... populations are in contact with long-line fisheries, mainly the pelagic Japanese southern blue-Jin tuna ... recent years has probably resulted in the slow recovery of these albatross populations as a result of ... albatross populations, most which are still declining in the Southern Ocean. Possible conservation measures ...
Meeting Document : WG-FSA-96/09 : Author(s): Jouventin, P., Brothers, N., Weimerskirch, H.
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By-catch analysis as a part of progress report for the research fishery of Dissostichus spp. in Subarea 48.6 by Japan and South Africa during 2012/13–2016/17
report for the research fishery of Dissostichus spp. in Subarea 48.6 by Japan and South Africa during ... by-catch occurred in most longline research operations, the number of by-catch individuals was less ... than 100 individuals in most of the operations. In most of longline operation, by-catch weight was less ... highest at research blocks 48.6_1. As temporal change of by-catch, only GRV shows obvious decrease in ...
Meeting Document : WG-SAM-17/44 : Author(s): T. Okuda, S. Somhlaba and T. Ichii
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By-catch analysis as a part of progress report for the research fishery of Dissostichus spp. in Divisions 58.4.3a and 58.4.4b by Japan and France during 2012/13–2016/17
report for the research fishery of Dissostichus spp. in Division 58.4.3a and 58.4.4b by Japan and France ... . Although the by-catch occurred in most longline research operations, the number of by-catch individuals was ... less than 50 individuals in most of the operations. In most of longline operation, by-catch weight was ... temporal change of by-catch, common three by-catch species represents obvious decrease in number of by ...
Meeting Document : WG-SAM-17/45 : Author(s): T. Okuda, A. Rigaud, R. Sinegre and T. Ichii