Search results
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Winter habitat selection by Antarctic krill will increase krill-predator-fishery interactions during ice free years
around the Antarctic Peninsula in winters with contrasting ice conditions provide the first acoustic ... estimates of krill biomass, habitat use, and association with top predators to examine these likely ... , or primary production and in areas that are becoming more frequently ice free (Stammerjohn et al ... open waters are available to fishing vessels. Changes to conservation measures may be necessary to ...
Meeting Document : WG-EMM-15/05 : Author(s): C.S. Reiss, A. Cossio, C.D. Jones, A. Murray, G. Mitchell, J. Santora, K. Dietrich, E. Weiss, C. Gimpel, J. Walsh and G.M. Watters (USA)
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A hypothetical life cycle for Antarctic toothfish Dissostichus mawsoni in Antarctic waters of CCAMLR Statistical Area 88
investigated models that mimic the drift of eggs and larvae over a 6–24 month period using an oceanic ... larvae after an 18–24 month period suggested by the models agreed moderately well with the distribution ... of the smallest toothfish taken in the toothfish fishery. Our present hypothesis is that D. mawsoni ... eastwards with the eastern Ross Sea gyre settling out along the continental slope and shelf to the east of ...
Meeting Document : WG-FSA-07/35 : Author(s): S.M. Hanchet, G.J. Rickard, J.M. Fenaughty, A. Dunn and M.J. Williams (New Zealand)
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Results from the 2019 annual acoustic krill monitoring off the South Orkney Islands
comparison with previous survey years and provide some context for the large scale survey estimate, we here ... surveys from 2011 to 2018. The distribution was similar to previous years with most krill along the shelf ... (s): G. Skaret, B.A. Krafft, G. Macaulay, T. Knutsen and O.A. Bergstad Title: Results from the 2019 ...
Meeting Document : WG-EMM-2019/69 : Author(s): G. Skaret, B.A. Krafft, G. Macaulay, T. Knutsen and O.A. Bergstad
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SC-CAMLR-XIII
of the Working Group for the CCAMLR Ecosystem Monitoring Program(Cape Town, South Africa, 25 July to 3 August ... Africa, 25 July to 3 August 1994) SC-CAMLR-XIII/05 Report of the Joint Meeting of the Working Group ... to 2 August 1994) SC-CAMLR-XIII/06 Report of the Working Group on Fish Stock Assessment(Hobart, Australia, 11 ...
Meeting
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Effect of orientation on broadband acoustic scattering of Antarctic krill Euphausia superba: implications for inverting zooplankton spectral acoustic signatures for angle of orientation
orientation corresponding to each insonification, revealed that echo spectra from krill near broadside ... echo spectra had a more erratic structure, with several closely spaced nulls of variable depth. The ... pattern of changes in echo spectra with orientation for the experimentally measured acoustic returns was ... inversion technique can be implemented using a generic empirical model space to determine angle of ...
Meeting Document : WG-EMM-99/41 : Author(s): L.V. Martin Traykovski (USA), R.L. O’Driscoll (New Zealand) and D.E. McGehee (USA)
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Admiralty Bay (South Shetland Islands) - long-term marine monitoring program
vulnerable region of Western Antarctic. It is widely assumed that Antarctic biota are sensitive to ... predictions of future change. Comparison of the collected data with the archive data sets will allow us to ... biotic elements in Admiralty Bay. In this paper we provide WG-EMM with an update on proposed project ... ". This project will continue to develop over the coming years and results we will be presented and ...
Meeting Document : WG-EMM-15/47 : Author(s): A. Panasiuk-Chodnicka, M. Korczak-Abshire, M.I. Żmijewska, K. Chwedorzewska, E. Szymczak, D. Burska, D. Pryputniewicz-Flis and K. Łukawska-Matuszewska (Poland)
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Southern right whale (Eubalaena australis) reproductive success is influenced by krill (Euphausia superba) density and climate
condition and, therefore, on foraging success. This, in turn, might be affected by climatically driven ... correlations were found with krill densities (r = 0.69, p = 0.002, lag 0 years), Oceanic Niño Index (r = −0.65 ... ice area (r = −0.68, p = 0.002, lag 0 years). Our results suggest that global climate indices ... ) availability for the species. Therefore, increased frequency of years with reduced krill abundance, due to ...
Meeting Document : WG-EMM-16/P06 : Author(s): E. Seyboth, K.R. Groch, L. Dalla Rosa, K. Reid, P.A.C. Flores and E.R. Secchi
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Fish prey of the wandering albatross Diomedea exulans at South Georgia
identified otoliths (32% could be identified only as?Macrouridae and?Moridae), Pseudochaenichthys georgianus ... (35%), Muraenolepis microps (33 %) and Chaenocephalus acemtus (20%) predominated, with Notothenia ... %, Chaenocephalus 27%; if digestion and wear had reduced otoliths by 10% the values would be Pseudochaenichthys 54 ... . It seems unlikely, therefore, that the albatrosses depend. greatly on the fishery for acquisition of ...
Meeting Document : SC-CAMLR-VII/BG/05 : Author(s): J.P. Croxall, A.W. North and P.A. Prince (United Kingdom)
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Dietary segregation of krill-eating South Georgia seabirds
fish (black-browed albatross and, along with lanternfish, white-chinned petrel), lanternfish and ... success and information on diet in 5-10 other years suggest that in 1986 seabird diet and reproductive ... , ecological segregation between krill-eating species appears to be maintained chiefly by differences in ... studies of seabird communities elsewhere where prey type and size are believed to be the main mechanisms ...
Meeting Document : WG-EMM-97/15 : Author(s): Prince, P.A., Croxall, J.P., Reid, K.
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Risk assessment framework for subdividing the krill catch trigger level, including relevant background data and information
predators, of being inadvertently or disproportionally affected by the krill fishery. It assesses ... land-based predators, of being inadvertently or disproportionally affected by the krill fishery ...
Meeting Document : SC-CAMLR-XXXV/BG/37