Search results
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Natural fluctuations in the abundance of krill with due regard to global climate changes in the southern hemisphere: forecasting possibilities
of the South Ocean in recent years made it possible for scientists to establish a rather clear relationship ... the strong year-classes of krill and severe winters when the ice-cover extended itself northwards ... generations of krill were formed during the years when the winter position of the ice edge was south ... in summer during such years of moderate winter in higher surface temperature. Salp occurred in mass ...
Meeting Document : WG-EMM-98/52 : Author(s): K. Shust (Russia)
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Temporal variability in Adélie penguin CEMP parameters and their response to changes in prey availability
Abstract: We examined the within- and between- year fluctuations of four Adélie penguin ... , foraging trip duration, meal mass and fledgling weights. Some years had either good breeding success ... between breeding success and fledgling weight. These discordant years also had an inconsistency between ... and elevated during the crèche stage). The overall temporal variability across years in response parameters ...
Meeting Document : WG-EMM-12/22 : Author(s): L. Emmerson and C. Southwell (Australia)
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Temporal variability in Adélie penguin CEMP parameters and their response to changes in prey availability
Abstract: We examined the within- and between- year fluctuations of four Adélie penguin ... , foraging trip duration, meal mass and fledgling weights. Some years had either good breeding success ... between breeding success and fledgling weight. These discordant years also had an inconsistency between ... and elevated during the crèche stage). The overall temporal variability across years in response parameters ...
Meeting Document : WG-EMM-12/48 : Author(s): L. Emmerson and C. Southwell (Australia)
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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
are 1.0 to 5.5 years and 2.0 to 5.0 years from King penguins and Macaroni penguin, respectively. The age ... structures of P. bolini are 0.5 to 4.0 years and 1.5 to 4.0 years from King penguins and Macaroni penguin ... readers through repeat reading runs 1 to 3. The age structures of E. carlsbergi are 1.0 to 5.5 years ... and 2.0 to 5.0 years from King penguins and Macaroni penguin, respectively. The age structures ...
Meeting Document : WG-FSA-18/74 : Author(s): M. Duan, G.P. Zhu, A. Makhado and L. Wei
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Are penguins and seals in competition for Antarctic krill at South Georgia?
of Antarctic krill. In recent years the population of fur seals has increased whereas that of macaroni penguins ... ranges of the two species showed considerable overlap in both years but the concentrations of foraging ... activity were significantly spatially segregated. Over the last 12 years the prevalence of krill ... seals in recent years. Krill in the diet of macaroni penguins was significantly correlated ...
Meeting Document : WG-EMM-01/22 : Author(s): K.E. Barlow, I.L. Boyd, J.P. Croxall, I.J. Staniland, K. Reid and A.S. Brierley (United Kingdom)
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Feasibility of trawl surveys to estimate abundance of juvenile toothfish in Subarea 88.1
over the last three years, 63% of the seabed area from 0–600 m depth was not fishable in January ... –February because of ice. Ice cover varied greatly between years, with the untrawlable area ranging from 31 ... % in 2002 to 89% in 2002. Less than 10% of the potential trawl survey area was fishable in all three years ... the last three years, 63% of the seabed area from 0–600 m depth was not fishable in January–February ...
Meeting Document : WG-FSA-SAM-04/07 : Author(s): Wood, B.A., ODriscoll, R.L., Hanchet, S.M.
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Summary of Ross Sea skate tagging programme results
years, and 47 (0.5%) have been recaptured. The recapture of tagged Amblyraja georgiana after up to four ... years at liberty shows that some skates survive and recover from being hauled out of depths of around ... , and probably increases the survival of released animals. Unfortunately, this means that length at release can ... little, even after four years at liberty. There was no movement between SSRUs, and the maximum distance ...
Meeting Document : WG-FSA-06/32 : Author(s): S.L. Ballara, A. Dunn and M.P. Francis (New Zealand)
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ENCOUNTERS WITH VULNERABLE MARINE ECOSYSTEMS IN THE CONVENTION AREA
Abstract: So far in 2008/09, the Secretariat has received 30 VME-indicator notifications from ... . In addition, the Secretariat has received 30 notifications of encounters with VMEs during the course ... So far in 2008/09, the Secretariat has received 30 VME-indicator notifications from exploratory ... . In addition, the Secretariat has received 30 notifications of encounters with VMEs during the course ...
Meeting Document : WG-EMM-09/08 : Author(s): Secretariat
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Acoustic monitoring and evaluation of krill in the Antarctic ecosystem Bransfield Strait and around Elephant Island during ANTAR XXI and XXII, aboard RV Humboldt, Peru
at high densities between 20 and 50 m deep while overnight, dispersed and scattered swarms were detected ... from the surface to 20 m deep. A wide distribution of krill in the study area, the highest densities ... between 20 and 50 m deep while overnight, dispersed and scattered swarms were detected from the surface ... to 20 m deep. A wide distribution of krill in the study area, the highest densities (> 1000 m / mn ...
Meeting Document : WG-EMM-16/76 : Author(s): R. Cornejo, M. Flores and J. Zuzunaga
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A comparative morphometric analysis of sagittal otoliths of three icefishes (Channichthyidae) in Antarctic waters
and right otoliths for fish ranging from 20 to 67 cm TL. To test for significant differences between ... not varied significantly between right and left sagittae (P>0.05). All EFDs derived from the 20 harmonics ... and right otoliths for fish ranging from 20 to 67 cm TL. To test for significant differences between ... not varied significantly between right and left sagittae (P>0.05). All EFDs derived from the 20 harmonics ...
Meeting Document : WG-FSA-18/47 : Author(s): G. Plaza, C. Rodríguez-Valentino and P.M. Arana