Search results
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Comparisons in prey distribution between inshore and offshore foraging areas of chinstrap penguins and Antarctic fur seals at Seal Island
the slope/offshore region was less abundant with krill and more remote from their breeding sites than ... are considered for visual predators to feed in the slope/offshore region at night:(l) krill showed more uniformal ... that krill may be easily found in the slope/offshore region; (2) krill tend to be larger in body size ... and more matured in the slope/offshore region than those in the inshore region; larger gravid female krill ...
Meeting Document : WG-EMM-96/49 : Author(s): Ichii, T., Bengtson, J.L., Boveng, P., Cameron, M.F., Naganobu, M., Meyer, W.R., Hiruki, L.M., Takao, T., Jansen, J.K., Kawaguchi, S.
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Ecosystem indicators: factors affecting the choice of predator performance indices for use in monitoring programmes
indices of predator performance from four species of krill-eating predator together with independent ship ... -based acoustic estimates of krill abundance from South Georgia the relationship between a range ... of indices of predator performance and krill abundance was examined. There was a distinct relationships ... the summer showed the closest relationship with krill abundance, especially those for species with foraging ...
Meeting Document : WG-EMM-03/43 : Author(s): K. Reid (United Kingdom)
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WG-EMM-18
(Punta Arenas, Chile, 30 April to 4 May 2018) WG-EMM-18/01 Rev. 1 Proposal for a New SCAR KRILL Action ... , Antarctica M.L. Bertolin and R. Casaux WG-EMM-18/05 On the very high likelihood of bycatch of ice krill ... (Euphausia crystallorophias) in the present-day fishery for Antarctic krill (E. superba) A.S. Brierley ... and R. Proud WG-EMM-18/06 Modelling Movement of Antarctic Krill (MMAK): the importance of retention, dispersal ...
Meeting
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Penguins, fur seals, and fishing: prey requirements and potential competition in the South Shetland Islands, Antarctica
their foraging efforts on a single species, Antarctic krill (Euphausia superba). Because these predators may have ... a significant effect on krill abundance, we estimated the energy and prey requirements of Adelie (Pygoscelis ... these estimates with catch statistics from the Antarctic krill fishery. Published data on field metabolic rate ... , chinstrap penguins were the most significant krill predators during the period examined, consuming ...
Meeting Document : WG-EMM-99/57 : Author(s): D.A. Croll and B.R. Tershy (USA)
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Coastal weather drives foraging behaviour of chinstrap penguins, Pygoscelis antarctica
that supports them. In the southwest Atlantic sector of the Southern Ocean, Antarctic krill (Euphausia superba ... the ecosystem in an adaptive framework for sustainably managing krill catch levels, performance indices of krill ... predators have been proposed as a proxy for krill abundance. However, there are several potentially ... variability and fishing pressure on krill availability at scales relevant to predators. In this context, our ...
Meeting Document : WG-EMM-18/P14 : Author(s): A.D. Lowther, P. Trathan, A. Tarroux, C. Lydersen and K.M. Kovacs
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CCAMLR Scientific Scholarship Scheme – Previous Recipients
krill near the Antarctic Peninsula through integrated stock assessment models. Mentors: Dr George ... of a Mixed Finite Element Method and Boundary Element Method (FEM-BEM based) TS model for Antarctic krill ... for comparison with the CCAMLR SDWBA model, study of the broadband acoustic scattering from Antarctic krill ... , and investigation of the utility of 70 kHz as an alternative or supplementary frequency for krill identification ...
Page : Site Section: Science
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Environmental response of upper trophic level predators reveals a system change in an Antarctic marine ecosystem
environment have significant potential to affect populations of Antarctic krill Euphausia superba, a keystone ... foodweb species. To investigate this we analysed data on krill-eating predators from 1980-2000 at South ... and an increase in the frequency of years of low reproductive output. Changes in the population structure of krill ... , and its relationship with reproductive performance, suggest that the biomass of krill within the largest ...
Meeting Document : WG-EMM-01/21 : Author(s): K. Reid and J.P. Croxall (United Kingdom)
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e-sc-38-a5.pdf
... .................................................................. 175 Focus topic on krill fishery management ................................................. 175 ... multinational synoptic large-scale krill survey ................................. 183 Risk-assessment ... for the krill fishery ...................................................... 184 Advice to the Scientific ... Committee on the development of a preferred option for the management of the krill fishery in Area 48 ... multinational synoptic large-scale krill survey ................................. 183 Risk-assessment for the ... krill fishery ...................................................... 184 Advice to the Scientific application/pdf attached to:WG-EMM-2019
Meeting Report : WG-EMM-2019
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Developing layers for a Risk Assessment for Subarea 48.1 using data from at-sea sightings
Abstract: CCAMLR has endorsed the use of the Risk Assessment framework to apportion the krill ... catch limits in order to minimise the risk of the fishery to krill dependent predators. We plan to apply ... to identify the most appropriate way to spread catch limits for the krill fishery. The risk assessment ... framework requires data layers describing the distribution and krill consumption by krill-dependent ...
Meeting Document : WG-EMM-2019/23 : Author(s): V. Warwick-Evans, L. Dalla Rosa, E. Secchi, E. Seyboth, N. Kelly and P.N. Trathan
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e-sc-xxvi-a4.pdf
... TO REVIEW ESTIMATES OF B0 AND PRECAUTIONARY CATCH LIMITS FOR KRILL................................ 166 ... of krill biomass and its variance.... 170 Clarifying current acoustic protocols ... 3 – Approaches to estimation of precautionary catch limits for krill .......... 174 Escapement levels ... ................................. 179 STATUS AND TRENDS IN THE KRILL FISHERY ..................................... 181 Fishing ... REVIEW ESTIMATES OF B0 AND PRECAUTIONARY CATCH LIMITS FOR KRILL................................ 166 ... acoustic estimation of krill biomass and its variance.... 170 Clarifying current acoustic protocols ... – Approaches to estimation of precautionary catch limits for krill .......... 174 Escapement levels application/pdf attached to:WG-EMM-07
Meeting Report : WG-EMM-07