Search results
-
JAPANESE SCIENTIFIC OBSERVER ACTIVITIES FOR KRILL FISHERY IN CCAMLR CONVENTION AREA FROM 2003/04 TO 2007/08 FISHING SEASONS
Abstract: This document introduces the recent activities and outcome of Japanese scientific ... grounds of the Japanese fishery were the Subareas 48.1, 48.2, and 48.3. Recent observation effort was ... are analyzed through a cooperative scientific network on Antarctic ecosystem. Biological analysis of ... the incidentally caught species yielded guidelines for sampling and species identification of larval ...
Meeting Document : WG-EMM-09/19 : Author(s): M. Kiyota and T. Iida (Japan)
-
Antarctic Climate Change and the Environment – 2019 Update
Abstract: This update by SCAR on recent advances in our understanding of climate change across ... , published by SCAR in 2009 (Turner et al. 2009), with an update of the key points in 2013 (Turner et al. 2014 ... ). At the request of the ATCM, SCAR agreed to provide regular updates on the original report (e.g. ATCM ... /physical-sciences/acce), which provides annual updates to the ATCM. The remit of the ACCE group is to keep ...
Meeting Document : SC-CAMLR-38/BG/17 : Author(s): Submitted by SCAR
-
WG-EMM-PSW-08
Predator Survey Workshop (Hobart, Australia, 16 to 20 June 2008) WG-EMM-PSW-08/02 List of participants WG ... -EMM-PSW-08/03 List of documents WG-EMM-PSW-08/04 A POPULATION ESTIMATE OF MACARONI PENGUINS (EUDYPTES ... TEMPORAL VARIATION IN ATTRIBUTES OF ADELIE PENGUIN BREEDING POPULATIONS: IMPLICATIONS FOR UNCERTAINTY IN ... ESTIMATION OF THE ABUNDANCE OF BREEDING PENGUINS FROM ONE-OFF COUNTS C. Southwell, J. McKinlay, R. Pike, D ...
Meeting
-
Light levels experienced by foraging Antarctic fur seals, Arctocephalus gazella
Abstract: This study examined the feasibility of using time depth recorders (TDRs) to measure ... ) 7.1 ± 0.7 d. A total of 25657 dives were recorded with a mean dive depth and duration of 18.0 ± 3.6 m ... and 49.5 ± 6.9 s, respectively. Depending on time of day, fur seals experienced between 6 and 57 % of ... recorded strong light attenuation in the top 50 m of the water column. The mean attenuation coefficient was ...
Meeting Document : WG-EMM-99/28 : Author(s): D.J. McCafferty, I.L. Boyd and T.R. Walker (UnitedKingdom)
-
Krill caught by predators and nets: differences between species and techniques
Abstract: Samples of Antarctic krill collected from six seabird species and Antarctic fur seal ... the same time. The length-frequency distribution of krill was broadly similar between predators and ... that foraging techniques were more important than foraging location in influencing the type of krill in ... this time of year may reflect some combination of selectivity by predators and superior escape ...
Meeting Document : WG-EMM-96/09 : Author(s): Hill, H.J., Reid, K., Trathan, P.N., Croxall, J.P.
-
Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea for the years 1997–98 to 2010–11
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... reference model using the selected trips tag data gave a similar, but slightly higher estimate of initial ... biomass than the 2009 base case. Retrospective analysis suggests that this is partly as a result of the ... increased number of vessels in selected data set and partly as a result of the 2010 and 2011 observations ...
Meeting Document : WG-FSA-11/42 : Author(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
-
OPERATIONAL DIFFICULTIES IN IMPLEMENTING THE CCAMLR TAGGING PROTOCOL IN DIVISION 58.4.1 IN 2007/08
a high mortality rate of fish on these lines; only fish with a high chance of survival were tagged ... closed on 30 January 2008). • The vessel caught a total of 9.757 t of Dissostichus mawsoni in Division ... of 3 fish tagged per tonne of green weight caught required in Conservation Measure 41-11(2007). The ... tag fish in excess of the required rate when the opportunity arose: • in Division 58.4.3a the vessel ...
Meeting Document : WG-FSA-08/16 : Author(s): A.T. Lozano and O. Pin (Uruguay)
-
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 ... heavy fledglings or poor breeding success with light fledglings while others had a lack of concordance ... the duration of early and late stage foraging trips. For example, low breeding success was recorded in ... period and heavy fledglings. These results may indicate changes in the relative level of resource ...
Meeting Document : WG-EMM-12/22 : Author(s): L. Emmerson and C. Southwell (Australia)
-
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 ... heavy fledglings or poor breeding success with light fledglings while others had a lack of concordance ... the duration of early and late stage foraging trips. For example, low breeding success was recorded in ... period and heavy fledglings. These results may indicate changes in the relative level of resource ...
Meeting Document : WG-EMM-12/48 : Author(s): L. Emmerson and C. Southwell (Australia)
-
Decadal trends in the South Georgia demersal fish assemblage
on the Shag Rocks and South Georgia Shelf region between 1986 and 2013. Consistent hotspots of fish ... years accounting for 97% of total demersal fish biomass. The relative abundance of these species was ... not uniform between strata. Trends in SSB for the five most abundant species of the South Georgia ... shelf show no consistent trends between species. There is evidence of increasing biomass in the marbled ...
Meeting Document : WG-FSA-13/26 : Author(s): M. Belchier (United Kingdom)