Search results
-
ANTARCTIC FUR SEAL PUP PRODUCTION AND POPULATION TRENDS IN THE SOUTH SHETLAND ISLANDS WITH SPECIAL REFERENCE TO SOURCES OF ERROR IN PUP PRODUCTION ESTIMATES
to 30 days after the median date of pupping was estimated for the years 1997-2007 at 4.5% (±0.60). Adult ... to 30 days after the median date of pupping was estimated for the years 1997-2007 at 4.5% (±0.60 ... with previous censuses over a 20yr period (1987, 1992, 1994, and 1996) indicates the rate of increase in fur ... the water (~30d after the median date of pupping [MDP]). Leopard seal predation for the first 75d post MDP ...
Meeting Document : WG-EMM-PSW-08/14 : Author(s): M.E. Goebel (USA), D.E. Torres C. (Chile), A. Miller, J. Santora, D. Costa (USA) and P. Diaz (Chile)
-
Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia
, normally between 1 and 4 animals and have a relatively lower impact on catches, depressing CPUE by up to 20 ... , normally between 1 and 4 animals and have a relatively lower impact on catches, depressing CPUE by up to 20 ... normally of 4 to 10 animals, and often appear to actively seek out fishing vessels and ‘strip’ the line ... %. Sperm whales have been more frequently encountered in recent years, occurring in larger pod sizes ...
Meeting Document : WG-FSA-10/P06 : Author(s): J. Moir Clark and D.J. Agnew
-
Entanglement of Antarctic fur seals (Arctocephalus gazella) in man made debris at Bird Island, South Georgia, during the 2006 winter and 2006/07 breeding season
entanglements (41) and animals with severe wounding (20) was the highest recorded in 14 years, whilst the recent ... . The increase in the number of winter entanglements (41) and animals with severe wounding (20) was the highest ... recorded in 14 years, whilst the recent escalation in summer entanglements since 2004/05 is also a cause ...
Meeting Document : SC-CAMLR-XXVI/BG/17 : Author(s): Delegation of the United Kingdom
-
Detection of anti-brucella antibodies in pinnipeds from the Antarctic Territory
in six of the seventeen samples involving the two animal species. It is concluded that a Brucella sp ... of the seventeen samples involving the two animal species. It is concluded that a Brucella sp. described ...
Meeting Document : WG-EMM-01/46 : Author(s): P. Retamal, O. Blank, P. Abalos and D. Torres (Chile)
-
RECENT POPULATION ESTIMATES AND TRENDS IN NUMBERS OF ALBATROSSES AND GIANT PETRELS BREEDING AT THE SUB-ANTARCTIC PRINCE EDWARD ISLANDS
the population on Prince Edward Island decreased by 20% from 2001 to 2008 (3% per year). The estimate of Indian ... group (Marion and Prince Edward islands) was conducted during December 2008, seven years after ... Edward Island, mirroring a decrease of roughly 2% per year at Marion Island from 1998 to 2005, a decline ... remained stable, whereas the population on Prince Edward Island decreased by 20% from 2001 to 2008 (3% per ...
Meeting Document : WG-EMM-10/P4 : Author(s): P.G. Ryan, M.G.W. Jones, B.M. Dyer, L. Upfold and R.J.M. Crawford
-
Antarctic icefishes (Channichthyidae) – a unique family of fishes – a review
or they are 15 – 20 Ma old and started to evolve some time after the formation of the Antarctic Circumpolar ... maturity before they are 5 – 8 years old. Spawning period of most icefish species is autumn – winter ... than 6 MA, i.e. they evolved well after the Southern Ocean started to cool down or they are 15 – 20 Ma ... maturity before they are 5 – 8 years old. Spawning period of most icefish species is autumn – winter ...
Meeting Document : WG-FSA-04/10 : Author(s): K.-H. Kock (Germany)
-
A descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in the Ross Sea up to 2005/06
. Tagging rates by area over the past three years have been in the same proportion as the catch by area ... 20% of the recaptures could not be matched to a release observation, mainly because of missing ... rates by area over the past three years have been in the same proportion as the catch by area. However ... , recapture rates have tended to be higher in the northern and eastern SSRUs 88.1C and 88.2E. About 20 ...
Meeting Document : WG-FSA-SAM-06/09 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)
-
Contribution to the early life history of Channichthyidae from the Bransfield Strait and South Georgia
the South Georgia region grow faster in the first two years of life than reported by Sosinski /1981 ... /1981/, as well as such estimate of growth of Chaenocephalus through year 1 and 2. Undescribed yet ... of•Chaenodraco /Fig. 9A/ migth be age group I, just as single juveniles 18-20 cm TL of Cryodraco /Fig ... . 6/, and the length group 20-26 cm TL of C. rastrospinosus /Fig. 10B/ is likely to be age group II. Author ...
Meeting Document : CCAMLR/86/FA/08 : Author(s): W. Ślósarczyk (Poland)
-
First record of anti-Brucella antibodies in Arctocephalus gazella and Leptonychotes weddellii from Cape Shirreff, Livingston Island, Antarctica
the two animal species. It is concluded that a Brucella sp. described as affecting marine mammals ... with the RBT, the CFT and the c-ELISA in six of the seventeen samples involving the two animal species ...
Meeting Document : SC-CAMLR-XVIII/BG/17 : Author(s): Delegation of Chile
-
Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Signy Island, South Orkney Islands, 2004/05
. In one case the entangling material had become attached to a rock and the animal was tethered ... the entangling material had become attached to a rock and the animal was tethered to the ground. The incidence ...
Meeting Document : SC-CAMLR-XXIV/BG/18 : Author(s): Delegation of the United Kingdom