Resultados de la búsqueda
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Using acoustic echo counting to estimate grenadier abundance in the Ross Sea (SSRU88.1I)
fishery for toothfish in the Ross Sea. Previous studies concluded that acoustics methods could be used to ... index the relative abundance of grenadiers and be useful for exploring spatial distribution. Automated ... acoustic methods were developed to estimate grenadier distribution and abundance based on echo counting ... targets on the eastern side of the Iselin Bank. The acoustic target strength distribution of single ...
Meeting Document : WG-FSA-14/62 : Autor(es): Y. Ladroit, R.L. O’Driscoll and S. Mormede (New Zealand)
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Do fish prey size affect the foraging patterns and breeding output of the Antarctic shag Phalacrocorax bransfieldensis?
Abstract: Concurrent information on diet composition, foraging patterns and breeding output of ... lower. The most likely explanation for the higher foraging effort and the lower breeding output of shags ... Gobionotothen gibberifrons and Notothenia rossii observed in the last eighteen years around the South Shetland ... shags observed in the last twelve years at colonies monitored in that archipelago. Author(s): R. Casaux ...
Meeting Document : WG-EMM-02/4 : Autor(es): R. Casaux and A. Baroni (Argentina)
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Biological features of the icefish Champsocephalus gunnari from commercial catches in Subarea 48.3 during the period from 8 December 1999 until 31 January 2000
frequency peaks under 27-29 and 33 cm for fish aged 3 and 4 years. The by-catch of small size ... Champsocephalus gunnari (with the length of 24 cm and less) amounted to, on the average, 0.6% per a haul. The male ... /female ratio, on the average, equalled to 1/1.2. The active process of gonad maturation, more rapid in ...
Meeting Document : WG-FSA-00/20 : Autor(es): V.L. Senioukov (Russia)
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CCAMLR’s role in combating IUU fishing in the Southern Ocean and globally
priority for CCAMLR as an integral part of the Antarctic Treaty System. Thus far, in spite of the number of ... Conservation Measures on IUU fishing adopted by CCAMLR, there are still significant steps that CCAMLR Members ... can take individually and collectively to eliminate IUU fishing in the CCAMLR Area. An important step ... in the development of global instruments to tackle this problem is the Agreement on Port State ...
Meeting Document : CCAMLR-XXIX/BG/20 : Autor(es): ASOC Observer
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Demography of Antarctic krill in the Lazarev Sea (Subarea 48.6) in the 2005/06 season
for the Lazarev Sea. Recruitment indices were calculated for one-year-old (R1) and two-year-old krill ... (R2), showing high values for both recruitment indices. New information is given on the development of ...
Meeting Document : WG-EMM-06/10 : Autor(es): V. Siegel (Germany)
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Developing conceptual models of elements of the Antarctic marine ecosystem: marine mammals
Monitoring and Management (WG-EMM). This paper describes properties for two groups of marine mammals that may ... Abstract: The Convention for the Conservation of Antarctic Marine Living Resources (CCAMLR) is ... currently considering plausible models of the Southern Ocean ecosystem within the Working Group on Ecosystem ...
Meeting Document : WG-EMM-04/65 : Autor(es): N. Gales and C. Southwell (Australia)
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Warp strike observations
Abstract: This report contains an analysis of data on seabird trawl-warp strike collected by ... by an estimated factor of 6, compared with no offal discharge • The strike-rate for large-birds ... summer of 2004 – 2005. The aim of the work was to test a new protocol for quantifying warp-strikes and to ... probability of warp strikes occurring for small and large birds. The protocol was designed for use by non ...
Meeting Document : WG-FSA-05/40 : Autor(es): E. Abraham (New Zealand)
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SUMMARY OF SCIENTIFIC OBSERVATIONS RELATED TO CONSERVATION MEASURES 24-02 (2008), 25-02 (2009), 25-03 (2009) AND 26-01 (2009)
retained or incinerated. All other types of packaging bands were either retained on board for disposal at ... Abstract: Introduction 1. This report summarises the information collected by observers for the ... 2009/10 season relating to compliance with Conservation Measures 24-02 (2008) “Longline weighting for ... limitations on Euphausia superba in Statistical Subareas 48.1, 48.2, 48.3 and 48.4”. Waste Disposal 2. The ...
Meeting Document : WG-FSA-10/08 : Autor(es): Secretariat
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Evidence of Vulnerable Marine Ecosystems documented via submarine in the Antarctic Sound and Gerlache Strait (Subarea 48.1)
biodiversity of the Southern Ocean, a variety of ecosystems must be protected. This holds especially true for ... in CCAMLR’s Report of the Workshop on Vulnerable Marine Ecosystems (E-SC-XXVIII-A10, 2009) and as ... recognized by WG-EMM in previous years. Herein, evidence appropriate to the diverse characteristics of the ... sites that exemplify CCAMLR’s definitions of a VME. Three sites are proposed based on highly significant ...
Meeting Document : WG-EMM-18/35 : Autor(es): S. Lockhart and J. Hocevar
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Age validation of Patagonian toothfish (Dissostichus eleginoides) from Heard and Macquarie Islands
Strontium Chloride (SrCl2) on release. One hundred and forty two of these strontium marked fish were ... recapture, we determined that for age classes 5 to 18, one increment is laid down per year. The expected ... counting presumed growth increments on the sectioned face of sagittal otoliths. While there is a general ... consensus that the observed increments represent annual events, no direct validation has been provided for ...
Meeting Document : WG-FSA-05/60 : Autor(es): K. Krusic-Golub and R. Williams (Australia)