Search results
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THE POWER OF ECOSYSTEM MONITORING
the effects of fishing using either the krill population or a combined predator response index was low (20–40 ... % power after 20 years with the probability of a type I error (α) = 0.05). The power increased to >50 ... of fishing using either the krill population or a combined predator response index was low (20–40 ... % power after 20 years with the probability of a type I error (α) = 0.05). The power increased ...
Meeting Document : WG-EMM-08/P11 : Author(s): K. Reid, J.P. Croxall and E.J. Murphy
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Diving pattern and performance in nonbreeding gentoo penguins (Pygoscelis papua) during winter
to three times dive duration. Deep dives showed clear diel patterns, averaging 10-20 m at dawn and dusk ... major differences are that foraging-trip frequency is 20% less and stomach-content mass on return ashore ... to three times dive duration. Deep dives showed clear diel patterns, averaging 10-20 m at dawn and dusk ... major differences are that foraging-trip frequency is 20% less and stomach-content mass on return ashore ...
Meeting Document : WG-CEMP-92/37 : Author(s): T.D. Williams (United Kingdom), A. Kato (Japan), J.P. Croxall (United Kingdom), Y. Naito (Japan), D.R. Briggs, S. Rodwell and T.R. Barton (United Kingdom)
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The effects of global climate variability in pup production of Antarctic fur seals
in Antarctic fur seal pup production at South Georgia over a 20-year period in response to environmental ... reductions in Antarctic fur seal pup production over 20 years of study. Simulated environmental time series ... production at South Georgia over a 20-year period in response to environmental autocorrelation created ... seal pup production over 20 years of study. Simulated environmental time series suggested ...
Meeting Document : WG-EMM-06/P2 : Author(s): J. Forcada, P.N. Trathan, K. Reid and E.J. Murphy (United Kingdom)
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Distribution and some biological features of icefish (Champsocephalus gunnari) at different life cycle stages in the South Georgia subarea
Abstract: The results of icefish ecology were summarized for the period of above 20 years ... that the life mode changed from pelagic one occurring at early life stages, to near-bottom- pelagic one after 20 ... The results of icefish ecology were summarized for the period of above 20 years of South Georgia ... from pelagic one occurring at early life stages, to near-bottom - pelagic one after 20 cm length ...
Meeting Document : WG-FSA-99/65 : Author(s): Zh.A. Frolkina (Russia)
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Fatty acid signature analysis from the milk of Antarctic fur seals and southern elephant seals from South Georgia: implications for diet determination
acids 16:4 n1, 18:2 n6, 18:4 n3, 18:4 n1 and 20:5 n3 and by higher levels of 18:0, 18:1 n9/ n11 (i.e. 18 ... :1 n9 co- eluting with 18:1 n11) and 20:1 n9. Fatty acid signatures from the milk of Antarctic fur seals ... and 20:5 n3 and by higher levels of 18:0, 18:1 n9/ n11 (i.e. 18:1 n9 co- eluting with 18:1 n11) and 20 ...
Meeting Document : WG-EMM-99/44 : Author(s): D.J. Brown, I.L. Boyd, G.C. Cripps and P.J. Butler (United Kingdom)
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The Continuous Plankton Recorder in the Southern Ocean: a comparative analysis of zooplankton communities sampled by the CPR and vertical net hauls along 140°E
at each of 19 stations: 0–20, 20–50, 50–100 and 100–150 m. A Continuous Plankton Recorder (CPR ... of 19 stations: 0–20, 20–50, 50–100 and 100–150 m. A Continuous Plankton Recorder (CPR) was deployed ...
Meeting Document : WS-BSO-07/P5 : Author(s): Hunt, B.P.V and G. Hosie
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Towards an initial operational management procedure for the krill fishery in Subareas 48.1, 48.2 and 48.3
is proposed: the primary objective is to prevent the expected lowest biomass of krill over a 20 year ... prove necessary during the 20 year period considered. Simulation tests, including one particular test ... of krill over a 20 year harvesting period failing below 60% its average unexploited level; subject ... that TAC reductions may prove necessary during the 20 year period considered. Simulation tests, including ...
Meeting Document : SC-CAMLR-VIII/BG/17 : Author(s): Delegation of South Africa
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Spatial and seasonal distribution of adult Oithona similis in the Southern Ocean: predictions using boosted regression trees
of the cyclopoid copepod Oithona similis in the Southern Ocean. Nearly 20 000 samples from the Southern Ocean ... migration by adults of this species north of 651S was found, with surface abundances 20% higher at night ... Oithona similis in the Southern Ocean. Nearly 20 000 samples from the Southern Ocean Continuous Plankton ... abundances 20% higher at night than during the day. There was no evidence of diel migration south of 651S ...
Meeting Document : WG-EMM-10/P14 : Author(s): M.H. Pinkerton, A.N.H. Smith, B. Raymond, G.W. Hosie, B. Sharp, J.R. Leathwick and J.M. Bradford-Grieve
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Development of the Southern Ocean Continuous Plankton Recorder survey
with 20, 31 and 26 tows, respectively. The 1999/2000 season included a unique, nearly simultaneous three ... abundance of zooplankton in the uppermost 20 m of the permanently open ocean zone between the sea-ice zone ... with 20, 31 and 26 tows, respectively. The 1999/2000 season included a unique, nearly simultaneous three ... abundance of zooplankton in the uppermost 20 m of the permanently open ocean zone between the sea-ice zone ...
Meeting Document : WS-BSO-07/P4 : Author(s): Hosie, G., M. Fukuchi and S. Kawaguchi
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Seabird mortality in the longline fishery for Patagonian toothfish at the Prince Edward Islands: 1996–1997
). However, the total fishing effort is estimated, based on landings, to be between 20 and 50 million hooks ... . (4 %). Extrapolating to the total fishery suggests that between 5 000 and 20 000 birds were killed during 1996-97 ... fishing effort is estimated, based on landings, to be between 20 and 50 million hooks. Average bird ... suggests that between 5 000 and 20 000 birds were killed during 1996-97. This excludes birds killed ...
Meeting Document : WG-FSA-97/51 : Author(s): Boix-Hinzen, C., Enticott, J.W., Ryan, P.G., Wanless, R., Purves, M., Nel, D.C.