Search results
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Shags in Antarctica: their feeding behaviour and ecological role in the marine food web.
Abstract: Feeding behaviour, ecological role in the marine food web and population trend of the ... of both sexes partition foraging depths and food resources, which might diminish intra-specific ... requirements at the nest increase, they increment the number but reduce the duration of the feeding trips. A ... steady declining trend in the number of breeding pairs of both species has been observed in the last ...
Meeting Document : WG-FSA-05/P5 : Author(s): Casaux, R., Barrera-Oro, E.R.
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CLASSIFICATION GUIDE FOR POTENTIALLY VULNERABLE INVERTEBRATE TAXA IN THE ROSS SEA LONG-LINE FISHERY
Abstract: Conservation Measure 22-06, in the absence of site-specific or other conservation ... to be taken when evidence of a Vulnerable Marine Ecosystem (VME) is encountered in the course of ... fishing operations. Monitoring fishing operations for encounters with evidence of a potential VME entails ... identification of specific taxonomic groups of invertebrates, such as sponges or corals. Identification of these ...
Meeting Document : WG-FSA-08/19 : Author(s): S. Parker, D. Tracey, E. Mackay, S. Mills, P. Marriott, O. Anderson, K. Schnabel, D. Bowden and M. Kelly (New Zealand)
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RECRUITMENT AND BODY SIZE IN RELATION TO TEMPERATURE IN JUVENILE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) AT SOUTH GEORGIA
commercially important, deepwater nototheniid fish, was examined at the sub-Antarctic island of South Georgia ... . Abundance of the 1+ juvenile fish cohort (13 to 15 month old dependent on survey date) was found to vary ... and larvae were not significantly correlated with juvenile density. The mean length of 1+ fish ... attained after 13-15 months was higher in years of high juvenile abundance and was significantly inversely ...
Meeting Document : WG-FSA-08/P02 : Author(s): M. Belchier and M.A. Collins
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Korean research plan for Dissostichus spp. in Subarea 48.5 in 2015/16
directed fishing for long time and is not even subdivided into any SSRUs. Republic of Korea noted that it ... could be because of the lack of information on this region. The research surveys were conducted in this ... area for two years. The Republic of Korea noted that the research activities in this region had ... relatively high catch rates in the Convention area. In the light of fishing experiences from the fisheries of ...
Meeting Document : WG-SAM-15/08 : Author(s): Delegation of the Republic of Korea
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INTEGRATING COUNT EFFORT BY SEASONALLY CORRECTING ANIMAL POPULATION ESTIMATES (ICESCAPE): A METHOD FOR ESTIMATING ABUNDANCE AND ITS UNCERTAINTY FROM COUNT DATA USING ADÉLIE PENGUINS AS A CASE STUDY
standardising animal count data to a common reference point of breeding chronological for species showing ... Animal Population Estimates) is suite of routines that implements a general abundance estimator ... , Southwell 2004a). Within this resampling framework all measures of uncertainty associated with originally ... achieved by standardising counts to a common reference point of breeding chronology by applying an ...
Meeting Document : WG-EMM-09/20 : Author(s): J. McKinlay, C. Southwell and R. Trebilco (Australia)
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Zooplankton target strength: volumetric or areal dependence?
Abstract: Target strengths (TS) of various zooplankton were measured at 200 kHz, 420 kHz and 1 ... MHz and the dependence of these data on animal volume versus cross-sectional area was explored The 420 ... seawater. The data were compared to both empirical and theoretical models of reduced target strength (TS ... normalized by the square of the animal length) versus ka (the product of wave number and equivalent ...
Meeting Document : WG-Krill-94/13 : Author(s): D.A. Demer and L.V. Martin (USA)
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Preliminary plan for research and monitoring in the Ross Sea region, in association with spatial marine protection
Abstract: This document provides a preliminary version of a research and monitoring plan to ... accompany a proposal to CCAMLR for the establishment of a system of MPAs in the Ross Sea region in 2012. The ... protection objectives as identified in Sharp & Watters (2011). Within each of these eight objectives ... there are identified specific objectives each of which is associated with an explicit spatial ...
Meeting Document : WG-EMM-12/57 : Author(s): M.H. Pinkerton and B. Sharp (New Zealand)
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Semi-automated software to count and validate Adélie penguin colonies from aerial photographs
of nesting Adélie penguins (Pygoscelis adeliae), on aerial photographs of the Ross Sea sector of ... user interface program. Previously, this task had been accomplished by manual marking of printed images ... , which is slow, and highly-dependent on the skill of the operator. The basis of the semi-automated ... counts. Validation of the counts against an experienced human counter is assisted by facilities to ...
Meeting Document : WG-EMM-14/54 : Author(s): S.J. McNeill, K.J. Barton and P.O’B. Lyver (New Zealand)
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Marine debris and entanglements at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2014–2015
to March 2015. Surveys of beached marine debris at Bird Island recorded a total of 289 and 275 items ... November 2014 to 16 March 2015) recorded no incidences of beached marine debris. One item of beached marine ... debris was recorded at Goudier Island. The first record of an entangled juvenile elephant seal was made ... at Bird Island. Entanglements of five Antarctic fur seals were observed at Bird Island, six at King ...
Meeting Document : SC-CAMLR-XXXIV/BG/27 : Author(s): Delegation of the United Kingdom
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Simulating nursery areas for Antarctic krill along the western Antarctic Peninsula with relevance for the Domain 1 MPA Planning process
Antarctic marine food web. Observational and modelling studies have shown that development of the embryo and ... early larval stages of Antarctic krill (the descent-ascent cycle) is largely controlled by temperature ... that conditions a successful completion of the cycle. The objective of the present study is to estimate ... , enhanced transport of Circumpolar Deep Water and higher ocean temperatures) may alter their distribution ...
Meeting Document : SC-CAMLR-XXXVI/BG/12 : Author(s): Delegations of Argentina and Chile