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1. Analysis of krill trawling positions north of the South Shetland Islands (Antarctic Peninsula area), 1980/81–1999/2000

   effect on trawling positions. Ice conditions for recent fishing periods were also demonstrated to have an ... commercial krill trawling positions for the 1980/81 to 1999/2000 seasons in the area north of the South ... operations concentrated on the outer shelf in the early 1980s, along the shelf slope in the mid to late 1980s ... quality, such as salp abundance and the proportion of green krill, also seemed to have an increasing ... seemed to have an increasing effect on trawling positions. Ice conditions for recent fishing periods ... from fishing vessels, the reasons for changing fishing grounds in January of these years were either ... these two years showed unusual patterns. In 1990/91 most trawling positions were located from the ... . ACKNOWLEDGEMENTS We would like to thank Denzil Miller and Robin Ross for their critical comments 011 an earlier ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 25–36 : Автор(ы): Kawaguchi, S. and K. Segawa

2. Size at sexual maturity of Patagonian toothfish (Dissostichus eleginoides)

   / Description:  Analyses of size at sexual maturity were undertaken on samples of Patagonian toothfish ... (Dissostichus eleginoides) caught in the commercial fishery within Subarea 48.3. The results for 1996 indicate ... that L m50 occurs at 78.5 cm total length for male and 98.2 cm for female fish. In 1997 the results for ... male fish were essentially the same. For female fish there is evidence that in 1997 a significant ... errors) for 'spawners' based on an upper asymptote of l-propn. An estimate of population L,,,, (with ... leading to an enlarged ovary of about 20% of the fish total mass. Spawning occurs in the period July to ... 1996 and 1997 calendar years were prepared by the CCAMLR Data Manager and provided for the purpose ... fit logistic models with an additional parameter for non-response (usually called 'immunity' in the ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 37–46 : Автор(ы): Everson, I. and A.W. Murray

3. Phytoplankton distribution in the mixed layer: implication to krill abundance

   Antarctic Ocean, we estimate the depth of the mixed layer and its turbulence intensity from an Ekman layer ... . However, the effect on the dynamics is vital, affecting the distribution of particles in the upper ocean ... extensively feed on phytoplankton. Boyd et al. (1984) estimate that they spend up to 30% of their total ... follow ( 2 ) (Gregg, 1987). Figure 2 shows the dissipation profile for UlO = 1, 5, 10 and 20 m sec-1 ... A is a constant of an order one. For the sake of simplicity we have used A= 1 . Therefore by ... (solid line) and the dissipation spectrum (dotted line) for N=0.001 rad S-1 and U10=1, 5, 10 and 20 m ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 331–356 : Автор(ы): Yamazaki, H. and T.R. Osborn

4. WG-CEMP-92

   Delegation of the USA WG-CEMP-92/20 An automated weighing and recording system as an aid for the study of the ... -CEMP-92/28 Progress in preparing for a workshop on methods to study the at-sea behaviour of marine ... -CEMP-92/30 On the problem of Soviet krill fishery allocation and intensity in the area of Elephant ... Full Name:  Working Group for the CCAMLR Ecosystem Monitoring Program Location:  Viña del Mar ...

   Meeting

5. Conservation Measure Conservation Measure 21-01 (2010)

   Notification that Members are Considering Initiating a New Fishery Limitations:  Except for waters ... adjacent to the Kerguelen and Crozet Islands Except for waters adjacent to the Prince Edward Islands ... accordance with Article IX of the Convention: 1. A new fishery, for the purposes of this conservation ... division for which: (i) information on distribution, abundance, demography, potential yield and stock ... catch levels proposed for the forthcoming season; (b) biological information on the target species ... advice, Noting that in recent years new fisheries have started without adequate information being ...

   Conservation Measure : 21-01 (2010)

6. Conservation Measure Conservation Measure 21-01 (2009)

   Notification that Members are Considering Initiating a New Fishery Limitations:  Except for waters ... adjacent to the Kerguelen and Crozet Islands Except for waters adjacent to the Prince Edward Islands ... measure in accordance with Article IX of the Convention: 1. A new fishery, for the purposes of this ... division for which: (i) information on distribution, abundance, demography, potential yield and stock ... levels proposed for the forthcoming season; (b) biological information on the target species from ... to base management advice, Noting that in recent years new fisheries have started without adequate ...

   Conservation Measure : 21-01 (2009)

7. Preliminary model of krill fishery behaviour in Subarea 48.1

   Elephant Islands in alternate years would result in an average yearly catch similar to that at present ... during alternate years. File:  06agnew-marin.pdf ... Livingston and Elephant Islands in alternate years would result in an average yearly catch similar to that ... in Table 1 varied considerably, an approximate mean CV of 0.4 was used for all squares for these ... Elephant Islands, the two major fishing areas, in alternate years. Closures were modelled by ... two major fisheries in the area. Catches by a single Chilean vessel for February, the only month in ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 71–79 : Автор(ы): Agnew, D.J. and V.H. Marín

8. A review of the effectiveness of streamer lines as a seabird by-catch mitigation technique in longline fisheries and CCAMLR streamer line requirements

   large degree on the precedent set by CCAMLR in 1991, the streamer line has become the primary, and most ... light of a review of existing literature and available data on the effectiveness of single and paired ... object be deployed windward of the hookline; and recommending that fishers deploy a minimum of two ... streamer lines on a voluntary basis according to performance and material standards. Based on the ... November 2002 (Table 1). Streamer lines had an aerial extent of 30 to 70 m depending on sea state ... line: UW IW-50 Two streamer lines: IW-50+Cannon 10 20 30 40 50 ... 100% compared to a control of no deter- rent over two years in the sablefi sh and Pacifi c cod fi ... collection on single streamer lines was limited and opportunistic in that it took place on two occasions ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 189–201 : Автор(ы): Melvin, E.F., B. Sullivan, G. Robertson and B. Wienecke

9. Estimating unaccounted fishing mortality in the Ross Sea region and Amundsen Sea (CCAMLR Subareas 88.1 and 88.2) bottom longline fisheries targeting Antarctic toothfish

   / Description:  Stock assessments rely on estimates of total mortality resulting from fishing activities ... counted in estimates of total fishing removals or otherwise accounted for in stock assessment models. The ... unaccounted fishing mortality from lost lines in these fisheries is provided. These estimates suggest that on ... average 208 tonnes of Antarctic toothfish mortality may be unaccounted for annually. While the current ... data were then used to estimate hook loss for the entire area on an annual basis and sep- arately for ... integrity for many years. In this sense, marine debris from lost gear may be considered cumulative ... gear was used for this analysis. There is also an ‘other hooks lost’ field, which reports ‘hooks lost ... ’. Catch and effort data were extracted from the CCAMLR C2 database for the 2008–2011 fishing years. The ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 17–30 : Автор(ы): Webber, D.N. and S.J. Parker

10. Fishery Report 2013: Dissostichus eleginoides Heard Island (Division 58.5.2)

    , selectivity is high for 6-year-old fish and effectively declines to zero for fish older than 20 years. 18 ... longline gear is able to catch older fish (>20 years) more efficiently than trawl gear. For trawl gear ... data available for inclusion on the assessment, including: (a) an analysis of the spatial and ... future SSB was below 20% of the pre-exploitation median spawning biomass in any one year, for each year ...

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