Search results
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Composition and characteristics of ichthyofauna in pelagic waters of South Georgia (Subarea 48.3)
ichthyocenosis in the subarea consisted of pelagic fishes (mainly Myctophidae), distributed at a depth range of ... Paper Title: Composition and characteristics of ichthyofauna in pelagic waters of South Georgia ... (Subarea 48.3) Abstract / Description: This paper presents the results of randomly stratified pelagic ... trawl census surveys conducted in Subarea 48.3. From 1984 to 1990 daily sampling stations aimed at ... sampling stations aimed at studying the vertical migrations of some of the most abundant species were ... ), distributed at a depth range of 250 to 300 m, as well as demersal fishes in the pelagic stage of their life ... i t u t e of Mar ine Fisheries a n d Oceanography (At lan tNIRO) car r ied o u t six pe ... fishing zone (70-100 m) to the 500-metre isobath both during the day and at night. The number of hauls ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 125–164 : Author(s): Frolkina, G.A., M.P. Konstantinova and I.A Trunov
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A review and preliminary analysis of CEMP data
Abstract: A review of the data in the CEMP database revealed minor inconsistencies that have now ... . Other problems were detected, such as the use of old forms and Standard Methods, and the increasing ... amount of automated data being collected and submitted. Members should ensure that they use the most ... current Standard Methods and CEMP forms found on the website (www.ccamlr.org). A review of the standard ...
Meeting Document : WG-EMM-02/7 : Author(s): Secretariat
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On the intensity of sampling krill trawl catches
(e.g. length-with-age). At present, and in the interests of both statistical rigour and the efficiency ... most purposes a minimum sample size of at least 100 animals/trawl is necessary to obtain statistically ... of determining adequate sample size to obtain representative krill length frequency distributions ... from commercial catches. In addition, the possible effect of two other factors (within-trawl ...
Meeting Document : WG-KRILL-90/27 : Author(s): D.G.M. Miller (South Africa)
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Progress report on the Weddell Sea Research Program Stage II
, 2014. A total of 34 longlines were set: the Option I – 10+20 and the Option II – 4 at the depths ... Abstract: Results of longline survey on Antarctic toothfish in the Weddell Sea (Stage II) are ... presented in the paper. Options I and II of the survey were carried out from February 10 to February 22 ... ranging from 605 to 2031 m. A total number of hooks- 116 100, fishing area – 13565 km 2. Catch value of ...
Meeting Document : WG-FSA-14/03 Rev. 2 : Author(s): A.F. Petrov, I.I. Gordeev, S.V. Pianova and E. F. Uryupova (Russia)
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Changes in the fish biomass around Elephant Island (Subarea 48.1) from 1976 to 1996
. gunnari stocks remained at a low level. The status of N. rossii is still unclear, although some recovery ... little prospect at present of re-opening the fishery around Elephant Island. File: 09kock.pdf ... from 1978/79 to 1988/89, with most of the commercial harvesting taking place in the first two years of ... the fishery. Results of bottom trawl surveys conducted by Germany in the vicinity of Elephant Island ... apparently recovered to a large extent by the second half of the 1980s, while C. gunnavi stocks remained at ... exploited on a localised fishing ground northeast of Joinville Island at the tip of the Antarctic ... shelf around Elephant Island at depths of 50 to 550 m from 1981 to 1996 (Table 2). The surveys were ... the course of a tow at a towing speed of approximately 4 knots. Mean horizontal openings between the ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 165–189 : Author(s): Kock, K.-H
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Theoretical considerations for estimating the density of cohorts and mean recruitment of Patagonian toothfish (Dissostichus eleginoides) based on research trawl survey data
fishery. At the 2003 meeting of WG-FSA a number of inconsistencies were identified in the estimation of ... , recognizing the importance of obtaining a consistent and reliable recruitment series for review at the 2004 ... assessing the long-term yield for toothfish fisheries in CCAMLR uses estimates of density of juvenile ... toothfish derived from research trawl surveys as an estimate of absolute abundance of recruitment to the ...
Meeting Document : WG-FSA-04/92 : Author(s): C.R. Davies, E.M. van Wijk and A.J. Constable (Australia)
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First CCAMLR Performance Review
views of the organisation, the Commission or its Members. Review responses At its meetings in 2008 and ... Initial Review At its Twenty-sixth Meeting (2007), CCAMLR decided to undertake a performance ... review of the organisation during 2008. CCAMLR’s decision provided for the review to be carried out by a ... panel appointed by the Commission composed of nine persons as follows: four internationally recognised ...
Page : Site Section: The Organisation
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Distribution and diet of juvenile Patagonian toothfish on the South Georgia and Shag Rocks shelves (Southern Ocean)
Abstract: The distribution and diet of juvenile (<750 mm) Patagonian toothfish are described ... from 4 annual trawl surveys (2003-06) around the island of South Georgia in the Atlantic sector of the ... Southern Ocean. Recruitment of toothfish varies inter-annually, and a single large cohort dominated during ... the four years surveyed. Most juveniles were caught on the Shag Rocks shelf to the NW of South Georgia ...
Meeting Document : WG-FSA-07/P4 : Author(s): M.A. Collins, K.A. Ross, M. Belchier, K. Reid. (Mar. Biol., 152: 135–147 (2007)).
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Trends in bird and seal populations as indicators of a system shift in the Southern Ocean
components is poorly understood because of the difficulty of obtaining long-term data sets on marine ... organisms. The Southern Ocean plays a critical role on global climate and there is growing evidence of ... in mid 1980s, being particularly important in the in the sub-Antarctic sector. At the same time with ... a time lag of 2–9 years with temperatures, the population size of most seabirds and seals monitored ...
Meeting Document : WG-EMM-03/53 : Author(s): H. Weimerskirch, P. Inchausti, C. Guinet and C. Barbraud (France)
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Relative selectivity of four sampling methods using traps and trawls for male snow crabs (Chionoecetes opilio)
deployed during the day. and (4) bottom trawl deployed at night. Catches were characterized in terms of ... , were larger than those caught in the trawl; the size of crabs caught in the trawl at night was larger ... Abstract: Catch rate and catch composition of male snow crabs were compared for four sampling ... crab body sizes, shell conditions, and claw allometry. We concluded that: 1) mean and modal size of ...
Meeting Document : WS-CRAB-93/11 : Author(s): J.M. Hoenig and E.G. Dawe (USA)