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1. Distribution of mackerel icefish (Champsocephalus gunnari) (Channichthyidae) around South Georgia at various stages of its life cycle

   cm in length) were mainly found in the southern part of the study area, immature fish (15–25 cm) in ... the east and southwest, and adults (25–39 cm) in the north. The distribution of C. gunnari changes ... vertical migrations. Variations found in the depth distribution of C. gunnari relate both to fish length ... South Georgia at various stages of its life cycle Abstract / Description:  The distribution of mackerel ... age–length distribution and mean length of 2- to 4-year-old fi sh in the western and Shag Rocks ... (<15 cm in length) were mainly found in the southern part of the study area, immature fi sh (15–25 cm ... ) in the east and southwest, and adults (25–39 cm) in the north. The distribution of C. gunnari ... (>40 cm) did not undertake vertical migrations. Variations found in the depth distribution of C ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 49–69 : Автор(ы): Frolkina, Zh.A

2. Mercury concentrations of five species of Antarctic fish collected from CCAMLR Subareas 88.1 and 88.2

   (NZFSA). In contrast, mean levels of mercury for D. mawsoni were 0.10 mg/kg-1 in the 1998 samples and ... 0.16 mg/kg-1 in the 2006 samples, both of which are well below the permissible level. Mercury levels ... levels were positively correlated with fish length in four of the species. Mercury levels also showed ... showed no trends with any factors for M. whitsoni. The low levels of mercury in D. mawsoni relative to ...

   Meeting Document : WG-FSA-07/24 : Автор(ы): S.M. Hanchet, D.M. Tracey, A. Dunn, P.L. Horn and N. Smith (New Zealand)

3. Preliminary report of sound-speed contrast and density of krill measured on board RV Kaiyo Maru

   41.7mm and 1.0720gcm-3 in 2005 survey. The corresponding sound-speed contrasts of mean total length ... improve the accuracy and precision of the TS value. Since in situ and experimental TS measurements of ... ) and the other is the ratio of the sound speed in animal to that in the surrounding water (sound-speed ... still few. During Antarctic surveys of the Japanese R/V Kaiyo Maru in 2000 and 2004/ 2005, the ...

   Meeting Document : WG-EMM-05/36 : Автор(ы): Y. Takao, H. Yasuma, R. Matsukura and M. Naganobu (Japan)

4. Spatio–temporal dynamics of Antarctic krill fishery: identification of fishing hotspots

   of the greatest fishery in Antarctic waters. Management of the fishery is based on a precautionary ... and temporal pattern of the fishery is only described in meso to macro scales (>>10 4 km 2 ... those years when the precautionary catch limit is reached. These events occur mainly in the centre of ... Abstract:  Antarctic krill is a key species in the Southern Ocean food web and is also the target ...

   Meeting Document : WG-EMM-16/52 : Автор(ы): F. Santa Cruz, B. Ernst and J.A. Arata

5. Dates of spawning of Antarctic euphausiids

   the dates of the beginning, termination and periods of high and the most intension of spawning. In the ... . The spawning of each species begins later in waters of high-latitude origin. The same connection ... exists for the period of the most intensive spawning. The termination of spawning in the waters of high ... -latitude origin is earlier then in the waters of an other type. The correlation with a geographical ...

   Meeting Document : SC-CAMLR-VIII/BG/24 : Автор(ы): Delegation of USSR

6. Growth rates of Antarctic fur seals as indices of environmental conditions

   mass at age in each year compared to the multi-year mean, that was not dependent on assumptions of ... weighing cross-sections of the population were compared with measured/inferred changes in the the ... growth rates in years of low krill availability. Biases reflecting changes in the component of the ... differences in growth rate can reliably be derived from differences in the slope of a linear relationship ...

   Meeting Document : WG-EMM-01/20 : Автор(ы): K. Reid (United Kingdom)

7. Measurements of sound-speed and density contrasts of Antarctic krill (Euphausia superba) on board RV Kaiyo Maru

   . The corresponding sound-speed contrast of krill with mean total lengths of 44.2mm was 1.011 in the ... Abstract:  In order to calculate the target strength of Antarctic krill (Euphausia superba) using ... of krill were measured during the Antarctic surveys conducted by the Japanese RV Kaiyo Maru in 1999 ... Sea in January and February 2005. Sound-speed was measured using the "time of flight" method ...

   Meeting Document : WG-EMM-08/56 Rev. 1 : Автор(ы): Y. Takao, H. Yasuma, R. Matsukura, K. Amakasu and M. Naganobu (Japan)

8. Direct ageing of Antarctic krill (Euphausia superba) – potential utility of eyestalk sections for age determination

   Abstract:  We outline a method for the direct determination of age in Antarctic krill (Euphausia ... endocuticle layer of the eyestalks and gastric mill in decapod crustaceans. Here we report on a preliminary ... superba). Recent studies (Kilada et al. 2012), have shown that annular growth bands are present in the ... proof of concept study using several known age krill grown under controlled conditions at the Australian ...

   Meeting Document : WG-EMM-15/45 : Автор(ы): C. Reiss (USA), R. Kilada (Canada) and S. Kawaguchi (Australia)

9. Estimates of circumpolar abundance of Antarctic krill based on recent acoustic density measurements

   tonnes- at the low end of values that have been suggested in the past. The differences between our ... survey of the South Atlantic in January 2000 may result in an effective biomass which is greater than the ... value used in the past. The seasonal and local consequences of large catch limits will have to be taken ... density measurements Abstract / Description:  The total circumpolar abundance of Antarctic krill ... the digitised map results in an overall mean biomass of 92.1 million tonnes (Table 1). Using the ... tonnes - the mean value derived from estimates of known density. Krill biomass in the southern Atlantic ... effectively underestimated the krill biomass by a factor of three, so the new survey of the South Atlantic in ... distribution maps produced in the Discovery Reports (Marr, 1962; Mackintosh, 1973) support modern ideas of ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 87–99 : Автор(ы): Nicol, S., A.J. Constable and T. Pauly

10. MaxEnt reconstructions of krill distribution and estimates of krill density from acoustic surveys at South Georgia 1996–2000

    approximately 0.5 km intervals along transect for each of the ten 80 km transects in each box, providing about ... probable krill density for each of the 32000 0.5 km x 0.5 km cells in each survey box, taking explicit ... account of the spatial relationship between densities in the observed data. Despite some very large ... of mean krill density within two survey boxes of dimensions 80 km x 100 km to the north east and ...

    Meeting Document : WG-EMM-02/36 : Автор(ы): M.H. Wafy, A.S. Brierley, S.F. Gull and J.L. Watkins (United Kingdom)

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