Resultados de la búsqueda
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Krill catches and consumption by land-based predators in relation to distance from colonies of penguins and seals in the South Shetlands and South Orkneys, 1987-1990
within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 and 1988 75% of the catch ... Abstract: Zones of 20 km width are defined around selected colonies of penguins distributed ... around the coasts of the South Shetland and South Orkney islands. Krill catches in these zones are shown ... to have a consistent pattern in Subarea 48.1 but an unpredictable distribution in 48.2, probably as a ...
Meeting Document : WG-CEMP-91/25 : Autor(es): D.J. Agnew (Secretariat)
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Estimates of local biomass with uncertainty for Antarctic (Dissostichus mawsoni) and Patagonian (D. eleginoides) toothfish in research blocks in Subareas 48.6 and 58.4
limits for 2018/19. The only research blocks in which there were adequate recaptures were 486_2, 486_3 ... Abstract: Local biomass of toothfish in research blocks in Subareas 48.6 and 58.4 have been ... and 486_4. However, as the trend in all three of these research blocks was declining the revised catch ... the research blocks was determined by the requirement that the absolute change in the existing catch ...
Meeting Document : WG-FSA-18/12 : Autor(es): CCAMLR Secretariat
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Reports on abundance and biological information of toothfish in Division 58.4.4a & b by Shinsei Maru No. 3 in 2012/13 season
relatively higher in 2011 but showed no clear tendencies with the years in SSRU C. Fish in single-hooked and ... information of toothfish in SSRUs C and D of Division 58.4.4a & b (Ob Lena Banks) from April 25 to May 22 ... , 2013. A total of 64 research hauls using normal trotline system were made in SSRUs C and D. Total catch ... of Dissostichus eleginoides (excluding those tagged and released) was 31.1 tonnes in the survey area ...
Meeting Document : WG-SAM-13/20 : Autor(es): K. Taki, T. Ichii, T. Iwami and M. Kiyota (Japan)
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Report on fishing effort and seabird interactions during the season extension trials in the longline fishery for Patagonian toothfish (Dissostichus eleginoides) in Statistical Division 58.5.2
seabird mitigation measures since the initial fishing season in 2003. Over the years, CCAMLR has agreed to ... add season extensions from 15-30 April and 15 September- 31 October to the core season. In 2015 ... management of fisheries in CCAMLR (see e.g. Conservation Measure CM 25-02 and 41-08). Longline fishing in the ... fishery for Patagonian toothfish (Dissostichus eleginoides) in Statistical Division 58.5.2 started as a ...
Meeting Document : WG-FSA-2019/31 : Autor(es): P. Ziegler, T. Lamb, S. Wotherspoon and J. Dell
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RECRUITMENT AND BODY SIZE IN RELATION TO TEMPERATURE IN JUVENILE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) AT SOUTH GEORGIA
attained after 13-15 months was higher in years of high juvenile abundance and was significantly inversely ... , South Atlantic. Data from 13 demersal trawl surveys conducted over a 20-year period were analysed ... Abstract: Recruitment variability in juvenile Patagonian toothfish (Dissostichus eleginoides), a ... correlated with SST in the summer prior to adult spawning. Trends in toothfish recruitment variability ...
Meeting Document : WG-FSA-08/P02 : Autor(es): M. Belchier and M.A. Collins
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Revised research plan for the exploratory fisheries for Dissostichus spp. in Division 58.4.3a in 2014/15
Abstract: In this document, we revised stock status assessments of D. eleginoides in research ... area size for the CPUE method. Detailed results using CASAL models in the research block are described ... in a separated document. The estimated stock size in the block was 2 393, 394 and 647 tonnes in CPUE ... analogy method, Petersen method and R.0.1 model (vulnerable biomass in 2013), respectively. Predicted ...
Meeting Document : WG-FSA-14/20 : Autor(es): Delegation of Japan
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PRELIMINARY ASSESSMENT OF MACKEREL ICEFISH, CHAMPSOCEPHALUS GUNNARI, IN THE VICINITY OF HEARD ISLAND AND MCDONALD ISLANDS (DIVISION 58.5.2), BASED ON A SURVEY IN APRIL 2009, USING THE GENERALISED YIELD MODEL
year class detected in the last two years’ surveys is now fully recruited as the 3+ cohort, and ... Abstract: A survey of mackerel icefish, Champsocephalus gunnari, was undertaken in Division ... 58.5.2 in the vicinity of Heard Island in April 2009 to provide the information for an assessment of ... short-term annual yield in the 2009/2010 CCAMLR season. This paper provides a preliminary assessment of ...
Meeting Document : WG-FSA-09/33 : Autor(es): D.C. Welsford (Australia)
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Brief results of research fishing in Subarea 88.3 in the 2010/11 season
Abstract: According to the application that has been applied by Russian Federation in 2010 for ... season 2010/2011 research fishing in subarea 88.3 has been done. The work has been done by longliner ... “Sparta”, with two scientific observers aboard. They deployed 20 sets (trotline) at different depths ... . Total amount of set hooks is 87096. Research catching was carried out in SSRU B, C, and D. In SSRU A ...
Meeting Document : WG-SAM-11/09 : Autor(es): Delegation of the Russian Federation
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Food and feeding of two Channichthyids, Champsocephalus gunnari and Chaenocephalus aceratus, around Elephant Island and in the South Shetland Islands (Subarea 48.1) in 2001 and 2002
‘Polarstern’. C. gunnari fed almost exclusively on krill (Euphausia superba) in both years. C. aceratus fed on ... Chaenocephalus aceratus, were collected in the Elephant Island – South Shetland Islands region during the AMLR ... cruise in March 2001 with RV ‘Yuzhmorgeologiya’ and ANTXIX/3 in January – February 2002 with RV ... krill and other crustaceans as well as on fish. C. aceratus smaller than 30 – 35 cm relied primarily on ...
Meeting Document : WG-FSA-02/73 Rev. 1 : Autor(es): H. Flores, K.-H. Kock, S. Wilhelms (Germany) and C.D. Jones (USA)
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Abundance of larvae and assessment of recruitment size of Carlsberg lantern fish (Electrona carlsbergi Tåning, 1932) - (family myctophidae) in Southwest Atlantic in 1989
crest between 38°30’- 45°S. and 15°- 20°W. Larvae were collected with BONGO and JUDAY nets in oblique ... recruitment biomass (fish aged up to 1 year) in this species for the area of 87750 square miles studied. The ... abundance of larvae in this area was 4.3 x 10 ind., while the biomass of one year old fish obtained was ... Abstract: This study was based on the data from the ichthyoplankton survey made in March-April ...
Meeting Document : WG-FSA-95/07 : Autor(es): Nevisnky, M.M.