Search results
-
The use of CCAMLR Statistical Subareas 88.1 and 88.2 and Division 58.4.1 by Macquarie Island giant petrels
summer of 2005-06. Adults of both species spent time in areas under CCAMLR jurisdiction. Adult southern ... giant petrels spent 37% of their overall time at sea in statistical sub-area 58.4.1, and 14% in sub-area ... earlier in the season (prior to hatching). Both southern and northern giant petrel fledglings crossed the ...
Meeting Document : WG-FSA-06/49 : Author(s): R. Trebilco, R. Gales, B. Baker and A. Terauds (Australia)
-
Sea surface temerature anomalies near South Georgia: relationships with the South Atlantic and the Pacific El Niño regions
variability around South Georgia. High levels of autocorrelation were evident in the sea surface temperature ... fluctuations in the Pacific. This link was separated temporally with the Pacific leading South Georgia by ... also reflected the variability in the Georgia Basin. The high levels of intra annual variability at ... variability in the onset of summer warming is potentially of great importance to the functioning of the ...
Meeting Document : WS-AREA 48-98/10 : Author(s): P. Trathan and E.J. Murphy (UK)
-
Krill stock evaluation with data from commercial fishing vessels
board during normal fishing operations in a relatively easy and cheap manner using the Norwegian vessel ... ‘Saga Sea’ in 2011 as example. A one-month subset of the acoustic data from February/March was processed ... concentrations were in general much higher during fishing and the length distribution was different. This was ... krill fishing vessels and previous experience in own waters we advocate that increased collaboration ...
Meeting Document : WG-EMM-12/63 : Author(s): G. Skaret (Norway), J. Moir Clark (United Kingdom), O.R. Godø, R.J. Korneliussen, T. Knutsen, B.A. Krafft and S.A. Iversen
-
Comparison of NASC values calculated by swarm-based and grid-based acoustic data processing methods for Antarctic krill density estimation
four surveys in 48.1 fishing area were calculated using both the swarm-based and conventional grid ... -based approach and grid-based approach based on data in the paper. In accordance to the suggestions ... , further analyses were undertaken and the results were shown in Appendix A. Author(s): X. Yu, X. Wang and ...
Meeting Document : SG-ASAM-18/04 Rev. 1 : Author(s): X. Yu, X. Wang and X. Zhao
-
Foraging dynamics of macaroni penguins (Eudyptes chrysolophus) at South Georgia during brood-guard
predictable; whether animals from one colony forage in separate locations to those from nearby colonies; or ... animals from one colony tended to forage in locations separate to those used by animals from nearby ... front, not all birds in the region focused on such areas as some birds foraged in other oceanographic ...
Meeting Document : WG-EMM-06/P4 : Author(s): P.N. Trathan, C. Green, J. Tanton, H. Peat, J. Poncet and A. Morton (United Kingdom)
-
Length-age composition of icefish (Champsocephalus gunnari, perciformes, notothenioidei, Channichthyidae) from different locations of South Georgia Island subarea
Abstract: Biostatistic data obtained by Soviet research and commercial vessels in 1970 to 1991 ... . Larger number of "mature" fish in the west is related to migration from eastern area of ... could rapidly set up and restore high abundance in Subarea just owing to that character in conjunction ...
Meeting Document : WG-FSA-00/32 : Author(s): Zh.A. Frolkina (Russia)
-
PREDICTING THE VULNERABILITY OF BENTHIC, HABITAT-FORMING ORGANISMS TO DISTURBANCE USING LIFE-HISTORY CHARACTERISTICS
Abstract: Assessing the impacts of fishing on Vulnerable Marine Ecosystems (VMEs) in the Southern ... known to occur in the Southern Ocean. These data show significant relationships between growth, age with ... temperature and/or depth suggesting that these taxa will show low resilience to disturbance in the Southern ... dispersal capability. Recovery trajectories in the orders of many decades or centuries are predicted. Author ...
Meeting Document : WG-EMM-09/35 : Author(s): K. Martin-Smith (Australia)
-
On the intensity of sampling krill trawl catches
Abstract: This paper uses actual krill length frequency data in an attempt to address the problem ... from commercial catches. In addition, the possible effect of two other factors (within-trawl ... (e.g. length-with-age). At present, and in the interests of both statistical rigour and the efficiency ... differences in length should be considered along with the need to collect maturity stage information. * For ...
Meeting Document : WG-KRILL-90/27 : Author(s): D.G.M. Miller (South Africa)
-
Alternative assessment methods for toothfish at South Georgia
first is that the CPUE in the early 1990s did not decline as would be expected as the resource was ... would be predicted by the model. Thirdly, all models predict a continuing decline, not the increase in ... initial lack of early decline, the abrupt decline between 1995 and 1996 and the subsequent increase in ... biomass in 2002 was between 78,000 and 114,000 t. Author(s): Kirkwood, G., Payne, A., Agnew, D. Title ...
Meeting Document : WG-FSA-SAM-04/17 : Author(s): Kirkwood, G., Payne, A., Agnew, D.
-
Considerations on the design and evaluation of surveys for estimating recruitment of Patagonian toothfish (Dissostichus eleginoides) with preliminary outcomes for the Heard Island plateau region (Division 58.5.2)
levels of confidence in the estimates of abundance for all but the youngest year class. It is recommended ... management procedure for D.eleginoides in Division 58.5.2 in order to determine the potential implications ... in the context of the elements of the current monitoring and assessment methods is outlined. Author(s ...
Meeting Document : WG-FSA-SAM-04/19 : Author(s): Candy, S., Constable, A.J., Davies, C.R.