Search results
-
A simple approach for calculating the potential yield of krill from biomass survey results
-exploitation level over a 20 year period of harvesting should not exceed l0%. The value of λ depends strongly ... for the calculations is that the probability that the kri11 spawning biomass drops below 20% of its average pre ... is that the probability that the kri11 spawning biomass drops below 20% of its average pre-exploitation level over a 20 ... year period of harvesting should not exceed l0%. The value of λ depends strongly on the value ...
Meeting Document : WG-KRILL-91/24 : Author(s): D.S. Butterworth (South Africa) and M. Basson (United Kingdom)
-
Seabird research at Cape Shirreff, Livingston Island, Antarctica, 2004/05
to decline over the past six years, and is at its lowest size in the past eight years of study, and fledging ... success was poor compared to earlier years of study. The gentoo breeding population, in contrast, has ... of both species decreased from last year, and were the lowest average weights seen over nine years ... in the 46-50mm range, continuing a four year trend of increasing proportions of female krill ...
Meeting Document : WG-EMM-05/9 : Author(s): A.K. Miller, E. Leung and W.Z. Trivelpiece (USA)
-
Trade data analysis – A report of trends and supply chains in CDS data
%) between these years. Across both years Chile had the greatest number of DCDs landings, exports ... and the largest quantity of landings (4 185 tonnes and 5 586 tonnes). For both years France exported the largest ... States of America (USA) in both years followed by Viet Nam. Analysis of supply chains within the CDS ... identified the greatest trade relationship for both years was between France and Viet Nam. Author(s): CCAMLR ...
Meeting Document : CCAMLR-XXXVII/BG/03 : Author(s): CCAMLR Secretariat
-
CEMP cameras data validation experiment at the Galindez Island gentoo colonies
. During the 2017-2018 season biologists winterers at Vernadsky station, situated at Galindez Island ... the 2017-2018 season biologists winterers at Vernadsky station, situated at Galindez Island, provided ...
Meeting Document : SC-CAMLR-XXXVII/BG/20 : Author(s): A. Dzhulay, V. Smagol, G. Milinevsky, I. Dykyy, A. Simon, M. Telipska, E. Dykyy, L. Pshenichnov and A. Grytsai
-
Networks and tools to enhance collaboration and coordination of observational activities
was held between the Southern Ocean Observing System (SOOS) and CCAMLR in April 2018 to: Improve ... the Southern Ocean Observing System (SOOS) and CCAMLR in April 2018 to: Improve understanding of roles ...
Meeting Document : SC-CAMLR-XXXVII/BG/31 : Author(s): Submitted by SOOS
-
Interannual variation in the diet of the Antarctic prion Pachyptila desolata at South Georgia
regurgitated by adult birds during five breeding seasons at Bird Island, South Georgia. In all years the diet ... krill Euphausia superba was the dominant prey item in three years and was replaced by calanoid copepods ... , especially Rhincalanus gigas and Calanoides acutus, in two years of low krill abundance. Differences ... in the prey species taken and observations of foraging behaviour suggest that in years of low krill ...
Meeting Document : WG-EMM-97/12 : Author(s): Croxall, J.P., Edwards, T.M., Reid, K.
-
Tooth growth in male Antarctic fur seals (Arctocephalus gazella) from South Georgia: an indicator of long-term growth history
in longitudinal sections of teeth. Mean age at death was 7∙69 ± 0∙07 years and this showed a small but significant ... an indication of body growth, Tooth growth rate was lowest in seals which died early (age 4 years) and increased ... mature early also died early. Tooth growth layers deposited in each calendar year were compared ... was deposited. There was significant variation in the depth of tooth growth layers deposited in different years ...
Meeting Document : WG-CEMP-93/11 : Author(s): I.L. Boyd and J.P. Roberts (United Kingdom)
-
Seabird research at Cape Shirreff, Livingston Island, Antarctica, 2005/06
and is the third lowest population size in the 10 years of census data. The chinstrap penguin breeding population ... has been declining for the Past eight years and is at its lowest size in the 10 years of study. Gentoo ... penguin fledging Success was the highest recorded in all the years of study. The fledging success ... and was slightly higher than the previous eight year mean. Gentoo penguin fledge weights for this season ...
Meeting Document : WG-EMM-06/P1 : Author(s): E.S.W. Leung, R.A. Orben and W.Z. Trivelpiece (USA)
-
COLTO Depredation Workshop
; and operational guidelines in regards to depredation. A second depredation workshop is planned for 2018, aimed ... projects have been developed and will begin in October 2016. The first, a 4-year project covering ... ; and the second, a 2-year project covering other toothfish fisheries. Author(s): Submitted by COLTO Title: COLTO ... ; and operational guidelines in regards to depredation. A second depredation workshop is planned for 2018, aimed ...
Meeting Document : SC-CAMLR-XXXV/BG/23 : Author(s): Submitted by COLTO
-
Seabird research at Cape Shirreff, Livingston Island, Antarctica, 2003–2004
to decline over the past five years, and is at its lowest size in the past seven years of study. While ... the gentoo breeding population increased slightly from last year, it is at its second lowest size in the past ... seven years. Chinstrap fledging success was higher during the 2003-04 breeding season than ... in the previous season, but lower than the average for the past seven years. Gentoo fledging success in 2003-04 ...
Meeting Document : WG-EMM-04/5 : Author(s): M. Antolos, A.K. Miller and W.Z. Trivelpiece (USA)