Search results
-
ENVIRONMENTAL FORCING AND SOUTHERN OCEAN MARINE PREDATOR POPULATIONS: EFFECTS OF CLIMATE CHANGE AND VARIABILITY
potentially the location where the most rapid climate change is most likely to happen, particularly in the ... high-latitude polar regions. In these regions, even small temperature changes can potentially lead to ... major environmental perturbations. Climate change is likely to be regional and may be expressed in ... predator populations show periodicity in breeding performance and productivity, with relationships with the ...
Meeting Document : WG-EMM-08/P06 : Author(s): P.N. Trathan, J. Forcada and E.J. Murphy
-
Monitoring results of marine debris at Cape Shirreff, Livingston Island during the 1995/96 Antarctic season
total of 4 251 articles with a total weight of 65.8 kg were obtained. As occurred in previous seasons ... %; metal (77 pieces), 1.81%; and paper (12 pieces), with a 0.28% From the plastic item, those used in ... at the site have increased from 0.65 articles/m2 in 1993/94 to 1.02 in 1994/95, and 1.52 in 1995/96 ... collars: two juveniles, and two pups three months old. All these animals were immovilized in order to take ...
Meeting Document : CCAMLR-XV/BG/27 : Author(s): Delegation of Chile
-
Development of methods for evaluating the management of benthic impacts from longline fishing using spatially explicit production models, including model validation
Abstract: An important management objective for CCAMLR in the high seas region of the Antarctic ... extreme case studies to validate the underlying model and code. In general, the model simulations were ... that they are relatively simple to construct, run, and interpret. In most cases, the results of the ... simulations suggested that management action of areal closures in the Ross Sea region are likely to result in ...
Meeting Document : WG-FSA-10/29 : Author(s): A. Dunn, S.J. Parker and S. Mormede (New Zealand)
-
Updated models of the habitat use of Patagonian toothfish (Dissostichus eleginoides) on the Kerguelen Plateau around Heard Island and the McDonald Islands (Division 58.5.2)
(Dissostichus eleginoides) in the CCAMLR area, with landings of >5000 t.yr-1 from the French EEZ (Division ... toothfish drawn from biological data collected in the HIMI area (Division 58.5.2) on more than 500,000 fish ... quantify the effect of bathymetry in structuring the spatial distribution of different length classes and ... sex ratio of 0.6 was found in between. The recent discovery of extensive areas of spawning activity in ...
Meeting Document : WG-FSA-14/42 : Author(s): C. Péron and D.C. Welsford (Australia)
-
Modelling the impact of krill fishing on seal and penguin colonies
with the foraging area of land-based predators such as seals and penguins in the Antarctic Peninsula ... region. The dynamics of krill in this region are strongly influenced by advective processes. A key ... predator colonies. In order to estimate the krill production actually available for predator consumption ... , it is necessary not only to consider “snapshot” survey estimates of krill abundance in the vicinity ...
Meeting Document : WG-EMM-05/14 : Author(s): É.E. Plagányi and D.S. Butterworth (South Africa)
-
Monitoring a marine ecosystem using responses of upper trophic level predators
level predators that specialise in foraging upon krill (Eupuasia superba Dana). These variables included ... . Individual variables had widely varying influence upon the CSI but, in general, those with longer time series ... offspring growth tended to explain the greatest proportion of the variability in the CSI and this was ... followed by variables representing diet. 4. There were 3 years in which the CSI showed extreme and ...
Meeting Document : WG-EMM-01/25 : Author(s): I.L. Boyd and A.W.A. Murray (United Kingdom)
-
Beach litter survey, Signy Island, South Orkney Islands 1994/95
cleared from three study beaches, Foca Cove, Cummings Cove and Starfish Cove, in December 1994, and ... scientific research stations in the South Orkney Islands. For example, only six of the 208 items recovered ... (The beach litter surveys carried out in 1990/91, 1991/92 and 1992/93 showed a steady reduction in both ... in 1993/94. The results from 1994/95 are again higher than those recorded in 1992/93. Of particular ...
Meeting Document : CCAMLR-XIV/BG/15 : Author(s): Delegation of the United Kingdom
-
KRILLBASE: a multinational, circumpolar database of abundance of Antarctic krill and salps
they are stored in national archives, sometimes only in archived notebooks. An international team of ... , including studies in support of fisheries management and conservation. Previous versions of KRILLBASE have ... contains data on krill from ~12,520 hauls and data on salps from ~10,832 hauls. These span 49 seasons in ... from both monitoring programs and large synoptic surveys. Due to variations in sampling method ...
Meeting Document : SC-CAMLR-XXXV/BG/24 Rev. 1 : Author(s): A. Atkinson, S. Hill, H. Peat, R. Downie and L. Gerrish
-
The Patagonian toothfish: biology, ecology and fishery
, biochemistry, parasite fauna and tagging indicate a high degree of isolation between populations in the Indian ... Ocean, South Georgia region and the Patagonian Shelf. Patagonian toothfish spawn in deep-water (circa ... age, when they begin a gradual migration into deeper water. As juveniles in shallow water, toothfish ... mineralised skeletons and a high fat content in muscle, which helps neutral buoyancy, but limits swimming ...
Meeting Document : WG-FSA-10/P05 : Author(s): M.A. Collins, P. Brickle, J. Brown and M. Belchier
-
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 : Author(s): Submitted by ASOC and COLTO