Search results
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Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia
normally of 4 to 10 animals, and often appear to actively seek out fishing vessels and ‘strip’ the line ... , normally between 1 and 4 animals and have a relatively lower impact on catches, depressing CPUE by up to 20 ... animals, and often appear to actively seek out fishing vessels and ‘strip’ the line of a large ... , normally between 1 and 4 animals and have a relatively lower impact on catches, depressing CPUE by up to 20 ...
Meeting Document : WG-FSA-10/P06 : Author(s): J. Moir Clark and D.J. Agnew
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Management plan for Site of Special Scientific Interest (SSSI) No. 1
; • minimize the possibility of introduction of alien plants, animals and microbes into the Area; • allow ... ; • minimize the possibility of introduction of alien plants, animals and microbes into the Area; • allow ...
Meeting Document : WG-EMM-02/59 : Author(s): Secretariat
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Investigation of bias in the mark–recapture estimate of toothfish population size at South Georgia
. The uneven distribution of animals was simulated by adjusting an average movement rate downwards when animals ... of animals was simulated by adjusting an average movement rate downwards when animals encountered a high CPUE ...
Meeting Document : WG-FSA-SAM-05/6 Rev. 1 : Author(s): D.J. Agnew, G.P. Kirkwood, J. Pearce and J. Clark (United Kingdom)
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Results of the tagging experiment for D. eleginoides in Subarea 48.4
. During this time animals were tagged in order to continue a mark-recapture programme started in 2005 ... this time animals were tagged in order to continue a mark-recapture programme started in 2005 to assess ...
Meeting Document : WG-FSA-06/56 : Author(s): A. Payne and D.J. Agnew (United Kingdom)
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Killer whale Orcinus orca and sperm whale Physeter macrocephalus interactions with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic
small, (2 – 8 animals, 57% of observations), while solitary animals (13%) and larger pods (>15 ... animals, 8%) occurred less frequent. Sperm whales were most often solitary (43% of observations) when ... some ‘hotspots’ for interactions seem to occur. Killer whale pods were generally small, (2 – 8 animals ... , 57% of observations), while solitary animals (13%) and larger pods (>15 animals, 8%) occurred less ...
Meeting Document : WG-FSA-03/27 : Author(s): M.G. Purves (United Kingdom), D.J. Agnew (United Kingdom), E. Balguerías (Spain), C.A. Moreno (Chile) and B. Watkins (South Africa)
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Peculiarities of Euphausia superba size composition in Statistical Subarea 48.2 (South Orkney Islands)
for each survey are showed on reparate maps (Fig. l-14). Consideration of age of animals is outside ... , comparision shows, that these animals, which distribute to the north from south part of the South Antilles ... of more small animals (adolescent). It is very interesting, that adolescent E.superba was found not only ... are showed on reparate maps (Fig. l-14). Consideration of age of animals is outside of attention, and we ...
Meeting Document : WG-KRILL-91/11 : Author(s): V.I. Latogursky and R.R. Makarov (USSR)
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Target strength of Antarctic krill
=-69db). Net samples obtained immediately before the experiment indicate that the animals were ... samples obtained immediately before the experiment indicate that the animals were reproductively mature ...
Meeting Document : WG-KRILL-91/13 : Author(s): R.P. Hewitt and D.A. Demer (USA)
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Exploring age and growth dynamics of a historically overfished Sub-Antarctic fish species: The grey rockcod (Lepidonotothen squamifrons) in the vicinity of Heard Island and McDonald Island
on the Kerguelen Plateau by unregulated fishing during the 1970s/80s. Since the mid-1990s little work has been ... Plateau by unregulated fishing during the 1970s/80s. Since the mid-1990s little work has been performed ...
Meeting Document : WG-FSA-15/51 : Author(s): D. Maschette, D.C. Welsford and C. Gardner (Australia)
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Estimating abundance of Antarctic fur seals at South Georgia
of unobserved animals. Author(s): J. Forcada, I.J. Staniland, A.R. Martin, A.G. Wood and P.N. Trathan (United ... of unobserved animals. ...
Meeting Document : WG-EMM-14/09 : Author(s): J. Forcada, I.J. Staniland, A.R. Martin, A.G. Wood and P.N. Trathan (United Kingdom)
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Estimating seabird by-catch in CCAMLR longline fisheries
58.5.2. At the same time, concern has been expressed about the suitability of the method used to raise ... . At the same time, concern has been expressed about the suitability of the method used to raise the observer ...
Meeting Document : WG-FSA-17/50 : Author(s): C. Darby and K. Olsson