Résultats de la recherche
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Hydroacoustic survey of elephant island and the vicinity of King George Island, austral summer 1989
Abstract: The hydroacoustic survey found a high krill abundance in the Elephant Island area (a ... “superswarm" not unlike 1981) and a very low abundance in the King George Island area compared to last ... years survey. The total biomass in the vicinity of Elephant Island estimated from 200 kHz survey data ... was 940 k tons with only 34 k tons in the King George Island/Bransfield Strait. The survey results ...
Meeting Document : SC-CAMLR-VIII/BG/33 : Auteur(s): Delegation of USA
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Collaborating to support effective protection of Southern Ocean ecosystems
Abstract: In this paper, COLTO and ASOC highlight important enforcement and compliance actions ... undertaken since CCAMLR XXXV and recommend further steps that CCAMLR can take to demonstrate leadership in ... compliance and enforcement as well as in environmental protection, including additional regulations for ... transhipments in the Convention Area; tightening legal loopholes for those involved in IUU fishing; implementing ...
Meeting Document : CCAMLR-XXXVI/BG/29 : Auteur(s): Submitted by ASOC and COLTO
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Short note on time series of Drake Passage Oscillation Index (DPOI) and its influence on environmental variability
Abstract: An assessment of the environmental processes influencing variability in the recruitment ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... affects the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability in ... krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of ...
Meeting Document : WG-EMM-07/14 : Auteur(s): M. Naganobu and K. Kutsuwada (Japan)
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Simulation experiments and CCAMLR yield estimates using CASAL
, 2004) and investigate model performance from alternative types of observations. In general, most models ... additional data (i.e., more observation types) assisted in providing better estimates. Further research on ... “true” states with data that includes bias and variance in observations, as well as the robustness of ... the estimation model to alternative operating model assumptions. In addition, the expected uncertainty ...
Meeting Document : WG-FSA-SAM-05/9 : Auteur(s): A. Dunn (New Zealand)
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Fishing equipment, marine debris and oil associated with seabirds at Bird Island, South Georgia, 2003/04
such annual report. As in most previous years, more items of fishing gear (mostly longlining gear) were ... found in association with wandering albatrosses than with any other species, although the number has ... number of debris items collected. An increase in the amount of debris and fishing items associated with ... brown skuas was recorded for the first time and was probably attributable to an increase in observer ...
Meeting Document : SC-CAMLR-XXIII/BG/16 : Auteur(s): Delegation of the United Kingdom
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Changes to the Statistical Bulletin
) a revision of the boundaries in Division 58.4.3 and adjacent areas (agreed at CCAMLR-XX). The ... necessitated some re-interpretation of existing STATLANT data. In most cases, change (1) was easily implemented ... occurred. However, in a small number of historic datasets, the months are not defined and change (1) was ... problematic. Ancillary fine-scale data were used, where available, to define the months fished in the ...
Meeting Document : SC-CAMLR-XXII/BG/07 : Auteur(s): Secretariat
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The diet of the Antarctic fur seal Arctocephalus gazella at Harmony Point, South Shetland Islands: evidence of opportunistic foraging on penguins?
benthic-demersal preys were represented in the samples. Overall, the Antarctic Krill Euphausia superba and ... mass in both seasons, with Gymnoscopelus nicholsi being the main prey. Interestingly, penguins were ... represented in the 39.0% and 31.9% of the samples in 2001 and 2002 and, as reflected by the reconstructed diet ... , was the main prey by mass (74.0% and 76.1%). The occurrence of penguins in the diet of A. gazella at ...
Meeting Document : WG-EMM-02/11 : Auteur(s): R. Casaux, L. Bellizia and A. Baroni (Argentina)
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FISHING INDUSTRY POLLUTION OBSERVATIONS AND ASSOCIATED MARINE MAMMAL ENTANGLEMENT RECORDS AT SOUTH GEORGIA, SUMMER 1996/97
Mirounga leonina and 12 Antarctic fur seals Arctocephalus gazella) in anthropogenic debris were reported ... adult, six juvenile); seven (58%) were entangled with plastic packaging bands, three (25%) in trawl ... netting and two (17%) in synthetic rope. All entangling material probably originated from fishing vessels ... -26 December 1996. The photographs (originals in colour) illustrate the diversity of debris, most ...
Meeting Document : CCAMLR-XVI/BG/26 : Auteur(s): Delegation of the United Kingdom
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ADULT ANTARCTIC KRILL FEEDING AT ABYSSAL DEPTHS
the Southern Ocean, and a key species in the Antarctic food web. The Discovery Investigations in the ... actively at abyssal depths in the Southern Ocean. Biological observations from the deepwater remotely ... operated vehicle Isis in the austral summer of 2006/07 have revealed the presence of adult krill (Euphausia ... superba Dana), including gravid females, at unprecedented depths in Marguerite Bay, western Antarctic ...
Meeting Document : WG-EMM-08/P01 : Auteur(s): A. Clarke and P.A. Tyler
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THE WHITE-CHINNED PETREL (PROCELLARIA AEQUINOCTIALIS) ON SOUTH GEORGIA: POPULATION SIZE, DISTRIBUTION AND GLOBAL SIGNIFICANCE
Abstract: More white-chinned petrels (Procellaria aequinoctialis) are accidentally killed in ... fisheries than probably any other seabird in the world, but the population impact of this mortality is ... poorly understood, partly because there have been no estimates of the species’ abundance in recent ... million pairs of white-chinned petrels laid on South Georgia in the survey seasons (2005/06 and 06/07 ...
Meeting Document : WG-EMM-PSW-08/05 : Auteur(s): A.R. Martin, S. Poncet, C. Barbraud, P. Fretwell and E. Foster (United Kingdom)