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Commission pour la conservation de la faune et la flore marines de l'Antarctique

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  1. Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands

    Paper Title:  Krill (Euphausia superba) distribution in relation to water movement and ... phytoplankton distribution off the northern South Shetland Islands Abstract / Description:  In December/February ... 1990/91 a survey was conducted by RV Kaiyo Maru in the vicinity of the South Shetland Islands and ... concentration of krill and to estimate krill biomass in the area surveyed. Krill biomass estimation was done by ... levels (0, 10, 20, 30, 40, 50, 75, 100, 125, 150 and 200 m). Chl-a concentration was determined by ... shallower. The top level of the integration depth, 10 m, was changed sometimes to 20 m in order to avoid ... . Since krill in this region tended to be most abundant within the depth range of 30 to 40 m (Fisheries ... curtain drogue (4 m x 1 m) deployed at 30 m depth in order to study flow patterns at this depth. 3 ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 123–140 : Auteur(s): Ichii, T., H. Ishii and M. Naganobu

  2. Sea-surface temperature and krill catches around South Georgia in December–February 1989–1991 and 1999–2001

    conducting a krill fishery in the area during the entire year. The reliability of these forecasts could be ... Subarea 48.3, which includes satellite surveys with GOES-E, Meteosat and in situ monitoring, together with ... Paper Title:  Sea-surface temperature and krill catches around South Georgia in December–February ... 1989–1991 and 1999–2001 Abstract / Description:  Monitoring of sea-surface temperatures (SSTs) in ... conducting a krill fi shery in the area during the entire year. The reliability of these forecasts could be ... ) from December to February was observed each year, there was a decrease in mean SST (both on monthly ... includes satellite surveys with GOES-E, Meteosat and in situ monitoring, together with further analysis ... . 9 (2002): 165–172 165 SEA-SURFACE TEMPERATURE AND KRILL CATCHES AROUND SOUTH GEORGIA IN DECEMBER ...

    Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 165–174 : Auteur(s): Vanyushin, G.P

  3. A hypothetical life cycle for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region

    Paper Title:  A hypothetical life cycle for Antarctic toothfish (Dissostichus mawsoni) in the Ross ... Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region are reviewed. Based on the presumed ... of the smallest toothfish taken in the toothfish fishery. The hypothesis presented is that D. mawsoni ... in CCAMLR Subareas 88.1 and 88.2 spawn mainly on the ridges and banks of the Pacific-Antarctic ridge ... Figure 6: Percentage distribution of floats in each of 19 sub-regions at the end of the two-year ... provided for 19 sub- regions, each 10° in latitude and 20° in longitude. The number of floats per sub ... the floats released at 146 m depth, about 30% were retained in the area of release, about 12% moved ... eggs and larvae are in the surface waters, then modelling suggested that as much as 30% of the eggs ...

    Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 35–53 : Auteur(s): Hanchet, S.M., G.J. Rickard, J.M. Fenaughty, A. Dunn and M.J. Williams

  4. Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea

    ]), where L t is the pelvic length (PL) in centimetres at age t years. Applying this growth curve to the ... Paper Title:  Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea Abstract ... estimate of longevity because of the possibility that thorn growth ceases in large individuals. There was ... no obvious difference in growth between the sexes, so the von Bertalanffy curve for both sexes ... pelvic length (PL) in centimetres at age t years. Applying this growth curve to the estimated lengths at ... rst band. Most skates in our sample had estimated ages of 2–9 years. The maximum age estimates were ... (year–1) t0 ± SE (years) Females 77 69.2 ± 3.1 0.402 ± 0.169 –0.73 ± 1.13 Males 58 79.9 ± 14.5 0.163 ... ). The maximum estimated age of 14 years found in this study should be regarded as a conservative ...

    Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 183–194 : Auteur(s): Francis, M.P. and C. Ó Maolagáin

  5. Information on the status of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in the lower South Shetland Islands, derived from the 2000–2006 monitoring program at Potter Cove

    sampling period of 24 years which began in 1983, and at Harmony Cove in the summers of 2001to 2003. The ... Notothenia coriiceps in the lower South Shetland Islands, derived from the 2000–2006 monitoring program at ... decline in trammel net catches of fjord Notothenia rossii and Gobionotothen gibberifrons in relation to ... increasing trend of N. rossii catches from 1991 to 2006, the actual levels are half of those found in the ... means by each year are presented in Figure 1. It should be noted that these estimates have been ... declined from values of over 20% in 1985 to values of less than 5% in 1988. Since then, G. gibberifrons ... of 24 years which began in 1983, and at Harmony Cove in the summers of 2001 to 2003. The decline in ... continuous sampling period of 24 years which began in 1983, and from 2001 to 2003 at Harmony Cove (HC). By ...

    Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 83–87 : Auteur(s): Barrera-Oro, E.R. and E.R. Marschoff

  6. Standardization of fishing effort for Champsocephalus gunnari in the South Georgia area (Subarea 48.3)

    Paper Title:  Standardization of fishing effort for Champsocephalus gunnari in the South Georgia ... inflexible in its use of data types and has no estimate of accuracy. A standardized CPUE index for ... Champsocephalus gunnari fishing in Subarea 48.3 is derived using a multiplicative model and data from many ... was 0.399. File:  20-Gasiukov.pdf ... fishing was at first carried out by means of bottom trawls, in recent years midwater trawls have been ... CHAMPSOCEPHALUS GUNNARI IN THE SOUTH GEORGIA AREA (SUB AREA 48.3) P.S. Gasiukov* Abstract Traditional ... calculation of catch-per-unit-effort series is inflexible in its use of data types and has no estimate of ... accuracy. A standardized CPUE index for Champsocephalus gunnari fishing in Subarea 48.3 is derived using ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 327–336 : Auteur(s): Gasiukov, P.S.

  7. An assessment of toothfish in Subarea 48.3 using CASAL

    Paper Title:  An assessment of toothfish in Subarea 48.3 using CASAL Abstract / Description:  This ... various tuning datasets. Bayesian methods are used in the estimation procedure, and uncertainty in the ... years refer to the fishing season that started in December prior to the year quoted. For example, year ... 1990 because the Russian fleet fishing in this year did not report haul-by-haul data to CCAMLR. Mark ... toothfish in Subarea 48.3 using CASAL recaptures by length by year of recapture and year of release ... collated by 10 cm length class (Table 2). The scanned catch in each length class each year, required to ...

    Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 65–95 : Auteur(s): Hillary, R.M., G.P. Kirkwood and D.J. Agnew

  8. Champsocephalus gunnari stock status in the South Georgia area

    intensity was F 0.1. In the first two cases TAC=25-30 thousand tonnes and stock size does not change. For ... Paper Title:  Champsocephalus gunnari stock status in the South Georgia area Abstract ... intensity (F) in a predicted period was equal to the average value of fishing mortality: (b) For the ... predicted period fishing intensity was at the level of that in 1987/88; (c) For the predicted period fishing ... was FO.1• In the first two cases TAC=2S-30 thousand tonnes and stock size does not change. For the ... WG-FSA-88/32 CHAMPSOCEPHALUS GUNNARI STOCK STATUS IN ... lowest level. T AC was calculated for three possible situations: ( a) Fishing intensity (F) in a ... fishing intensity was at the level of that in 1987/88; ( c ) For the predicted period fishing intensity ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 1-18 : Auteur(s): Borodin, R. and P. Kochkin

  9. Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea

    Paper Title:  Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the ... -at-spawning for female and male Antarctic toothfish (Dissostichus mawsoni) from fish sampled in the ... stage for at least one year. Individual oocytes are then recruited into the vitellogenic phase over at ... least a 6–12 month period, resulting in a developed group of oocytes accumulating at the final ... Age (years) 0 10 20 30 ... f fi sh Age (years) 5 10 15 20 25 30 ... - tiple size modes of developing oocytes present in the ovary throughout the year, making macroscopic ... one-year gam- ete development cycle and testis size increases dra- matically late in the summer to ...

    Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 53–73 : Auteur(s): Parker, S.J. and P.J. Grimes

  10. Scientific observations in CCAMLR fisheries – past, present and future

    Paper Title:  Scientific observations in CCAMLR fisheries – past, present and future Abstract ... -independent studies are difficult and expensive to conduct. In addition, the size of the Convention Area, its ... remoteness and prevailing inclement weather further complicate matters. Therefore, in addition to the ... observers on board fishing vessels has assumed prominence in the collection of essential data for fisheries ... Measure 41-01 (2004), paragraph 7) (see CCAMLR, 2004b). 0 10 20 30 40 50 60 1996 1997 1998 1999 ... in a consistent manner, thus ensuring data integrity and continuity from year to year. Any data ... principles outlined in Article II of the CAMLR Convention (CCAMLR, 2004a, Part 1) embody an ‘ecosystem’ and ... ve years. For four successive years since 2000, levels of incidental seabird mortality in regulated ...

    Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 81–98 : Auteur(s): Sabourenkov, E.N. and E. Appleyard

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E-mail: ccamlr [at] ccamlr [dot] org
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Adresse: 181 Macquarie Street, Hobart, 7000, Tasmania, Australia

 

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