Search results
-
Discussion on recent results from an integrated assessment of Antarctic krill (Euphausia superba) in Subarea 48.1
from three of the models provide a robust picture of changes in the krill population. An annual model ... . Differences in scaling of biomass estimates between the annual models and the more highly resolved models ... changes in biomass but lower absolute biomasses than the two annual models. A monthly model estimated ... different changes in biomass but predicted absolute biomasses that were similar to those from the seasonal ...
Meeting Document : WG-EMM-14/35 : Author(s): G.M. Watters, C.S. Reiss and D. Kinzey (USA)
-
Variations in food composition and feeding intensity of mackerel icefish (Champsocephalus gunnari) at South Georgia
) around Shag Rocks and the mainland of South Georgia was investigated in January/February 1985, January ... of krill and Themisto in the diet items varied considerably between the three seasons, whereas the ... proportion of mysids in the diet remained fairly constant. krill is obviously the prefered diet. In years of ... Abstract: The diet composition and feeding intensity of mackerel icefish (Champsocephalus gunnari ...
Meeting Document : WG-FSA-92/26 : Author(s): K.-H. Kock (Germany), I. Everson (United Kingdom), S. Wilhelms (Germany), S. Campbell (United Kingdom), J. Szlakowski (Poland), G. Parkes (United Kingdom), Z. Cielniaszek (Poland) and C. Goss (United Kingdom)
-
Susceptibility to oxidative stress in different species of Antarctic birds: preliminary results
cycle very stressful. In the framework of the Italian Research Program in Antarctica (PNRA), blood ... Abstract: The antioxidant defences in aerobic organisms represent the detoxification pathway ... during the 4-electrons reduction of molecular oxygen to water coupled with oxidative phosphorylation and ... during the activity of several enzymatic systems which produce ROS as intermediates. If the antioxidant ...
Meeting Document : WG-EMM-99/59 : Author(s): S. Corsolini, F. Regoli, S. Olmastroni, M. Nigro and S. Focardi (Italy)
-
Development of a vessel safety checklist and debriefing protocol for use in SISO
Abstract: In accordance with the recommendations of the 2013 Panel Review of the CCAMLR Scheme of ... of SISO recommends the performance of a vessel safety check (see proposed Annex II in CCAMLR-XXXVI/25 ... approved by the Commission (proposed A(e bis) in CCAMLR-XXXVI/25). This paper provides examples of vessel ... ) prior to observer deployment, as well as the use of a form and protocol for debriefing observers to be ...
Meeting Document : CCAMLR-XXXVI/BG/16 : Author(s): Delegation of the USA
-
Oxygen and carbon stable isotopes in otoliths record spatial isolation of Patagonian toothfish (Dissostichus eleginoides)
distinguish South American-caught fish from those taken in the Antarctic. Values of δ18O and δ13C predicted ... prior evidence of population isolation. Values of δ18O in the otoliths reflected ambient values as well ... Abstract: Strong contrasts in ambient isotope ratios and in diet suggest stable isotopes in the ... depletion of δ13C at South Georgia compared to the Patagonian Shelf were most likely linked to differences ...
Meeting Document : WG-FSA-08/P03 : Author(s): J.R. Ashford and C.M. Jones
-
Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Signy Island, South Orkney Islands 1996/97
aboard vessels that was brought into force in 1996. The high incidence of synthetic line and fishing net ... with, regulations prohibiting the disposal of debris in the southern ocean. Author(s): Delegation of ... the United Kingdom Title: Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made ... Abstract: The results of the first annual survey of entanglement of Antarctic fur seals at Signy ...
Meeting Document : SC-CAMLR-XVI/BG/07 : Author(s): Delegation of the United Kingdom
-
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 ... selectivity to investigate the population dynamics of Antarctic krill (Euphausia superba) near the Antarctic ... the South Shetland Islands from 1992 to 2011. Two indices of krill biomass based on (1) trawl-net ...
Meeting Document : WG-EMM-15/P07 : Author(s): D. Kinzey, G.M. Watters and C.S. Reiss
-
A revised assessment of Patagonian toothfish in Subarea 48.4
Abstract: The stocks of toothfish in Subarea 48.4 are currently divided, for assessment purposes ... . eleginoides in Subarea 48.4. The main changes to the assessment are: the removal of D. mawsoni data and the ... , into northern and southern components. The northern component is assessed as a single species of D ... . eleginoides whilst the southern component is assessed as a combination of D. eleginoides and D. mawsoni. Both ...
Meeting Document : WG-SAM-13/24 : Author(s): R. Scott (United Kingdom)
-
Preliminary assessment of Patagonian toothfish in Subarea 48.4
Abstract: To date, the stocks of toothfish in Subarea 48.4 have been divided, for assessment ... revised assessment of D. eleginoides in Subarea 48.4. The main changes to the assessment are: the removal ... purposes, into northern and southern components. The northern component is assessed as a single species of ... D. eleginoides whilst the southern component is assessed as a combination of D.eleginoides and D ...
Meeting Document : WG-FSA-13/31 : Author(s): R. Scott and V. Laptikohvsky (United Kingdom)
-
Two decades of variability in krill predators at Bird Island, South Georgia and their potential as ecosystem indicators
Abstract: The breeding performance of seabirds and seals at Bird Island, South Georgia, in the ... penguins. Offspring survival and hence PRP were largely independent of krill in the diet for macaroni ... monitoring programme. We examined the mechanistic relationships between, and patterns of inter-annual ... included foraging performance, offspring survival, offspring mass, the contribution of Antarctic krill ...
Meeting Document : WG-EMM-12/16 : Author(s): S.L. Hill, C.M. Waluda, H.J. Peat and S. Fielding (United Kingdom)