Search results
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Preliminary results of age determination of the Dissostichus spp. from the longline catches in 48.2 Subarea (2015, SIMIIZ)
the Ukrainian vessel “Simeiz” in the Northern part of Weddell Sea (statistical Subarea 48.2) in March ... determination of the caught fish showed that, in the studied fishing area, specimens of older age groups ... : Preliminary results of age determination of the Dissostichus spp. from the longline catches in 48.2 Subarea ...
Meeting Document : WG-FSA-15/46 : Author(s): Delegation of Ukraine
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Assessment models for Patagonian toothfish in research block 5843a_1 of Division 58.4.3a, Elan Bank
status assessments of Dissostichus eleginoides in research block 5843a_1 in Division 58.4.3a for the ... generally based on those with the same names in WG-SAM-14/17 as follows: 1) R.0.1 model without tagging ... comprised of two fisheries split by depths of 1 200 m as the model in WG-SAM-14/17. Number of longlines was ... biomass (B 0) estimate. The MPD estimate of B 0 was 464 and 772 tonnes in R.0.1 and R.1 models ...
Meeting Document : WG-FSA-14/22 : Author(s): K. Taki (Japan)
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Seabird mortality in the Patagonian toothfish longline fishery around the Prince Edward Islands, 1996–2000
(a globally important seabird breeding site) commenced in 1996 following high levels of Illegal ... petrel carcasses were hooked in their wings and bodies, whereas albatrosses were caught most frequently ... in their bills. Albatross carcasses also contained large numbers of baits, indicating that fishers ... seabird bycatch in the sanctioned fishery decreased from 0.19 birds/1000 hooks to 0.034 birds/1000 hooks ...
Meeting Document : WG-FSA-01/8 : Author(s): D.C. Nel, P.G. Ryan and B.P. Watkins (South Africa)
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Alternative methods for determining subarea or local area catch limits for krill in Statistical Area 48
limit on krill (Euphausia superba) in Statistical Area 48. The measure also asks the Scientific ... enforcement, 5) the effects on current fishing patterns, and 6) the potential for delay in implementing the ... models include large amounts of biological information, but may not be practical in the near future ... explicit and result in delayed implementation. None of the alternatives are categorized as being both ...
Meeting Document : WG-KRILL-92/16 : Author(s): G. Watters and R.P. Hewitt (USA)
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A critical re-examination of the evidence for a possible dependence of Weddell seals (Leptonychotes weddellii) on Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea, Antarctica
(Dissostichus mawsoni; ‘toothfish’) in the Ross Sea may affect the ecological viability of top predators such as ... of potential prey species including toothfish in the context of updated estimates of Weddell seal ... -energy food resource for Weddell seals that possibly cannot be adequately replaced by other prey, in ... antarcticum) in Weddell seal diets should be re-examined given the known biases of methods used to derive diet ...
Meeting Document : WG-EMM-13/28 : Author(s): R. Eisert, M.H. Pinkerton (New Zealand), S.D. Newsome and O.T. Oftedal (USA)
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A spatially explicit population dynamics operating model for Antarctic toothfish in the habitable depths of the Ross Sea region
Antarctic toothfish in the Ross Sea region, for a medium scale spatial resolution (189 spatial cells ... ) covering the Ross Sea region. In this model run we spatially restrict the stock to cells where at least 5 ... plausible distribution hypothesis in-between the two extreme bounding hypotheses represented by the ... about the distribution of toothfish in areas where no fishing has occurred, such that the unrestricted ...
Meeting Document : WG-FSA-13/53 : Author(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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Selectivity and two biomass measures in an age-based assessment of Antarctic krill (Euphausia superba)
selectivities were examined. Parameters were estimated in phases with the sequential order of the phases ... quantities was tested using simulated data. Annual trends in the estimates of total biomass, spawning biomass ... trends in population biomass, but less variable estimates of scale, compared to time-constant ... in any integrated stock assessment with parameters estimated in phases. Author(s): D. Kinzey, G.M ...
Meeting Document : WG-EMM-15/P07 : Author(s): D. Kinzey, G.M. Watters and C.S. Reiss
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Observer activities on Japanese krill fishing vessels in the CCAMLR Convention Area
Abstract: Unlike toothfish fishery, IUU fishery is not a serious concern in krill fishery ... . Although the increase of expected catch of krill notified in recent years has caused concerns among some ... urgent management concern related to krill fishery. In addition, CCAMLR XXV agreed “that the priorities ... on Japanese krill fishing vessels in the CCAMLR Convention Area Approval: Approved ...
Meeting Document : CCAMLR-XXVI/BG/41 Rev. 1 : Author(s): Delegation of Japan
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Patterns in the diet of mackerel icefish (Champsocephalus gunnari) on the South Georgia and Shag Rocks shelf (CCAMLR Subarea 48.3)
fish caught in research trawls at South Georgia and Shag Rocks in January 2004. The results are ... euphausids and the older fish taking more krill and fish. The change in diet reflects a shift from smaller to ... Kingdom) Title: Patterns in the diet of mackerel icefish (Champsocephalus gunnari) on the South Georgia ...
Meeting Document : WG-FSA-04/44 : Author(s): M.A. Collins, R. Mitchell, G. Tarling and M. Belchier (United Kingdom)
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Information on the spawning season and gonadosomatic indices of Dissostichus mawsoni from Subarea 88.1 in the 2001/02 season
Dissostichus mawsoni were collected from Sub-area 88.1 in the 2001-2002 season by the New Zealand bottom ... longline vessels Janas and San Aotea II operating in the Exploratory Fishery. The onset of the spawning ... season was identified as late autumn (May). A significant difference in the condition of fish between ... spawning season and gonadosomatic indices of Dissostichus mawsoni from Subarea 88.1 in the 2001/02 season ...
Meeting Document : WG-FSA-02/31 : Author(s): G.J. Patchell (New Zealand)