Resultados de la búsqueda
-
An updated descriptive analysis of the toothfish (Dissostichus spp.) tagging program in Subareas 88.1 and 88.2 for 2006/07
Abstract: Descriptive analyses of the toothfish tagging programme carried out in Subareas 88.1 ... and 88.2 since 2001 are updated. The paper provides a preliminary update of the tag-release and tag ... -recapture data that were presented at the October 2006 meeting of WG-FSA by including data from New Zealand ... previously were unavailable for about half of the non-New Zealand vessels for 2004 are now available and ...
Meeting Document : WG-SAM-07/5 : Autor(es): A. Dunn, S.M. Hanchet and S.L. Ballara (New Zealand)
-
Temporal scales of foraging in a marine predator: implications for interpreting the distribution of prey
the surface, the time taken for a fur seal to locate a new patch after leaving an old one is an ... Abstract: The pattern of prey distribution can profoundly affect the foraging behavior and ... must be able to adapt quickly to changes in the spatial patterning of prey. Antarctic fur seals feed ... indication of the distance between patches. The frequency distribution of intervals between bouts of foraging ...
Meeting Document : WG-EMM-95/23 : Autor(es): Boyd, I.L.
-
Ageing two myctophid fishes using otolith from king and macaroni penguins in the Marion Island and its implication to feeding preference of penguins on those myctophids
Abstract: Myctophids apparently represent the second largest (after krill) and most widely ... distributed biological resources in the Antarctic waters, which are the important food sources of top ... predators, particularly penguins. However, the information on age of those fishes are very limited and ... inconsistent. Moreover, the data on trophic relationship between penguins and myctophid fishes are scarce, so ...
Meeting Document : WG-FSA-18/74 : Autor(es): M. Duan, G.P. Zhu, A. Makhado and L. Wei
-
Revised research plan for the exploratory fisheries for Dissostichus spp. in Division 58.4.3a in 2014/15
and recaptured only at the western end of the block, as pointed out at the last WG-FSA meeting ... blocks 5843a_1 using CPUE analogy method, Petersen method and CASAL model, although the tagging data of ... current season has not been validated and not used for the present analysis. We used updated reference ... area size for the CPUE method. Detailed results using CASAL models in the research block are described ...
Meeting Document : WG-FSA-14/20 : Autor(es): Delegation of Japan
-
Characterisation of skate catches in the Ross Sea region
to the end of the 2009–10 fishing season, and about 4300 Eaton cf. skates were landed and 4600 ... Abstract: The toothfish fishery in the Ross Sea region (CCAMLR Subareas 881 and 882) has been ... operating since the 1996–97 fishing season. The fishery has increased to an annual Antarctic toothfish ... (Dissostichus mawsoni) catch of about 3000 t. Skates form a small proportion of the total catch (typically 2% or ...
Meeting Document : WG-FSA-10/25 : Autor(es): S. Mormede and A. Dunn (New Zealand)
-
Results of a CCAMLR-sponsored research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea, February 2012
endorsed a proposal to carry out this work once the fishery had closed at the end of the 2011/12 season ... Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... recruitments from a well-designed survey could be a useful input into the Ross Sea stock assessment model and ... . The survey had two main objectives: (i) To establish the feasibility of developing a time series of ...
Meeting Document : WG-FSA-12/41 : Autor(es): S.M. Hanchet, S. Mormede, S. Parker, A. Dunn (New Zealand) and H.-S. Jo (Republic of Korea)
-
Foraging location and range of white-chinned petrels Procellaria aequinoctialis breeding in the south Atlantic
. Dispersal of adults after breeding failure was south to the South Orkney Islands then west to the Falkland ... Abstract: The foraging range and principal feeding areas of White-chinned Petrels breeding at ... distance per day during chick-rearing (71 km) than during incubation (91 km) but the proportion covered at ... night (47%) was the same. Mean (31–34 km/h) and maximum (80 km/h) flight velocities were similar during ...
Meeting Document : WG-FSA-01/25 : Autor(es): S.D. Berrow, A.G. Wood and P.A. Prince (United Kingdom)
-
Foraging location and range of white-chinned petrels Procellaria aequinoctialis breeding in the South Atlantic
Patagonian shelf. Dispersal of adults after breeding failure was south to the South Orkney Islands then west ... Abstract: The foraging range and principal feeding areas of White-chinned Petrels breeding at ... less distance per day during chick-rearing (71 km) than during incubation (91 km) but the proportion ... covered at night (47%) was the same. Mean (31- 34 km/h) and maximum (80 km/h) flight velocities were ...
Meeting Document : WG-FSA-99/20 : Autor(es): S.D. Berrow, A.G. Wood and P.A. Prince (United Kingdom)
-
Population and breeding of the gentoo penguin Pygoscelis papua at Marion Island, 1994/95 to 2002/03
Abstract: The numbers of gentoo penguins Pygoscelis papua breeding at subantarctic Marion Island ... 1998/99, there was a steady decrease in numbers breeding between 1995/96 and 2000/01, when the ... relocated to another colony after disturbance. From first clutches, pairs on average fledged between 0.01 ... increased the overall production of fledged chicks by 11%. Based on demographic parameters measured at other ...
Meeting Document : WG-EMM-03/16 : Autor(es): R.J.M. Crawford, J. Cooper, M. du Toit, M.D. Greyling, B. Hanise, C.L. Holness, D.G. Keith, J.L. Nel, S.L. Petersen, K. Spencer, D. Tshingana and A.C. Wolfaardt (South Africa)
-
THE POWER OF ECOSYSTEM MONITORING
% power after 20 years with the probability of a type I error (α) = 0.05). The power increased to >50 ... ecosystem monitoring programme, the utility of which depends upon its ability (measured by the statistical ... monitoring programme of the predators of Antarctic krill Euphausia superba at South Georgia together with a ... krill population model to simulate natural and fisheries induced variability in krill abundance, the ...
Meeting Document : WG-EMM-08/P11 : Autor(es): K. Reid, J.P. Croxall and E.J. Murphy