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Notes on the availability of three important finfish species in offshore waters of the lower South Shetland Islands (Subarea 48.1)
collected from a single year, the sample size and regression range available for length-weight relationships ... can be increased. However, the value of these data as a combined singular data set for one year of ... sampling is limited. A future offshore survey coupled with inshore sampling would provide substantially ... more information, and allow a more direct comparison of the two data sets to be realised, particularly ...
Meeting Document : WG-FSA-99/31 : Автор(ы): C.D. Jones (USA), E.R. Barrera-Oro, E.R. Marschoff and R.J. Casaux (Argentina)
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EFFECT OF STERN-SETTING TUNNEL ON THE SINK RATE OF INTEGRATED WEIGHT LONGLINE (IWL)
Abstract: This paper describes a new vessel modification to allow setting of longlines via a ... steel tube, built in to the longliner during a dry-dock refit. The tube angles downwards from where the ... tested in a series of sets using time-depth recorders during current sea-trials and approximately three ...
Meeting Document : WG-FSA-08/38 : Автор(ы): I. Hay and G. Robertson (Australia)
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COMPARISON OF THE BIOMASS OF ANTARCTIC KRILL, (EUPHAUSIA SUPERBA), AROUND THE SOUTH SHETLAND AND SOUTH ORKNEY ISLANDS IN THREE YEARS: 1999, 2000 AND 2008
Abstract: Using a combination of techniques, we examine data from three cruises in 1999, 2000 and ... may be useful in deriving biomass estimates for the South Orkney Islands in 1999. We use a simple ... , and report on the biomass from a survey conducted in 2008. Biomass estimates in 2008 are calculated ... future development of management strategies based on small scale units. Author(s): C. Reiss and A ...
Meeting Document : WG-EMM-08/26 : Автор(ы): C. Reiss and A. Cossio (USA)
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FISHING ACTIVITY AND SEABIRD-VESSEL ATTENDANCE NEAR THE NORTHERN ANTARCTIC PENINSULA
Abstract: We conducted a survey to investigate the factors influencing the number of seabirds ... attending a research vessel during scientific trawling activities near the northern Antarctic Peninsula. Our ... examine seabird-vessel attendance to scientific trawling activities in Antarctic waters where there is a ... conservation actions are met to protect seabirds. Author(s): Jarrod A. Santora and Kimberly S. Dietrich (USA ...
Meeting Document : WG-FSA-08/11 : Автор(ы): Jarrod A. Santora and Kimberly S. Dietrich (USA) and Darci Lombard (Canada)
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CONVENORS’ REPORT OF THE WG-IMAF WORKSHOP
this scope was a part of the broader contribution of CCAMLR to the conservation of these taxa. The key ... reflect a purpose and revised scope of the group; o in the short-medium term WG-IMAF should place a ... particular focus on a reduction in incidental mortality of seabirds associated with fishing in those areas of ...
Meeting Document : WG-FSA-08/65 : Автор(ы): K. Rivera and N. Smith (Co-conveners of ad hoc WG-IMAF)
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Net sample validation of acoustic techniques used to identify and size Antarctic krill
(MVBS) data at 120 and 38 kHz were collected with a Simrad EK500 echo sounder, and net samples were ... frequency data and compared with that obtained in net hauls. This comparison revealed that a simplified bent ... cylinder model was a better predictor of krill length (predicted length = 8.79 + 0.685 observed length, r2 ... = 0.77) than a fluid-filled sphere model. Author(s): Watkins, J.L., Brierley, A.S. Title: Net sample ...
Meeting Document : WG-EMM-97/46 : Автор(ы): Watkins, J.L., Brierley, A.S.
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Climate change and zooplankton dominance in the Antarctic marine ecosystem: implications for the food web
Abstract: There is a growing body of evidence that the climate of the Antarctic Peninsula region ... extensive sea-ice development. These trends potentially will have a major impact on the structure and ... function of the Antarctic marine ecosystem. In the Antarctic Peninsula region winter sea-ice coverage is a ... followed the first prolonged winter sea-ice season in three years and provides a strong contrast to the ...
Meeting Document : WG-EMM-96/21 : Автор(ы): Siegel, V., Fraser, W., Trivelpiece, S., Holm-Hansen, O., Loeb, V., Hewitt, R., Trivelpiece, W.
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Trophic relations of the cephalopod Martialia hyadesi (Teuthoidea: Ommastrephidae) at the Antarctic Polar Front, Scotia Sea
carlsbergi, the euphausiid Euphausia superba and a hyperiid amphipod, probably Themisto gaudichaudi. A small ... , which is itself a major prey item of some higher predators In the Scotia Sea, suggests that a previously ...
Meeting Document : SC-CAMLR-XI/BG/11 : Автор(ы): Delegation of United Kingdom
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Further calculations of the effects of krill fishing on predators
achieved by making the survival rates depend instead on krill "availability", where there is a ... resilience of the albatross population to the effects of a krill fishery. An approach for estimating the ... the blackbrowed albatross and Antarctic fur seal indicate a surprisingly low resilience of these ... populations to the effects of a krill fishery. Discussion is needed as to whether this reflects an ...
Meeting Document : WG-Krill-94/24 : Автор(ы): D.S. Butterworth and R.B. Thomson (South Africa)
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The use of morphometric parameters for the determination of sex of Adelie penguins
, cubitocarpal) with the mean discriminant score of 55.39. Males have a higher score and females a lower one. The ... discriminant score be determined for a single operator and at each breeding colony to reduce these sources of ... the sex of the birds can be increased by avoiding those with a discriminant score close to the mean ...
Meeting Document : WG-CEMP-91/5 Rev. 1 : Автор(ы): K.R. Kerry, D.J. Agnew, J.R. Clarke and G.D. Else (Australia)
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