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1. Validation of sink rates of longlines measured using two different methods

   sight behind waves or in congregations of seabirds before the target depth was reached. No TDRs were ... of the ground line – IW-50 lines) were measured during commercial fishing operations using two ... behind the vessel, i.e. out of the observer’s sight, when they reached the target depth. Bottles had a ... measure sink rates to depths of more than 2 m down to the seabed. A major advantage of the TDRs is the ... improve the manuscript. References CCAMLR. 2002. Schedule of Conservation Measures in Force, 2002/03 ... seabird mortality in demersal longline fi shing operations, the sink rate of the longlines was identifi ... recording the water-entry time of TDRs. Based on TDR data, the differences in sink rates to various target ... depths and the variation in sink rates of longlines over four depth increments with increasing distance ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 179–187 : Autor(es): Wienecke, B. and G. Robertson

2. Results of fish larvae sampling by means of fine-meshed samplers attached to a bottom trawl

   bottom trawl Abstract / Description:  Fine-meshed samplers were attached to the top of a bottom trawl in ... order to provide information on the composition, distribution and abundance of Antarctic fish larvae in ... sized meshes for sampling larvae in the bottom zone and the resistance of the samplers to damage during ... , more vulnerable to damage. The nets were more effective in sampling when attached to the top of the ... -meshed samplers were attached to the top of a bottom trawl in order to provide information on the ... composition, distribution and abundance of Antarctic fish larvae in the near-bottom zone, which is usually ... not sampled using plankton nets. The efficiency of various sized meshes for sampling larvae in the ... nets were more effective in sampling when attached to the top of the trawl belly, not to the codend. A ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 69-86 : Autor(es): Ślósarczyk, W. and I. Wójcik

3. Geographical aspects of utilising resources of krill (Euphausia superba)

   Abstract:  This paper presents data on the distribution of E. superba in the Atlantic sector and ... . In a number of subregions on the periphery of the Weddell Gyre (both to the north and south), as well ... as in the coastal waters of the Antarctic continent, the formation of krill aggregations is variable ... in terms of location of individual aggregations. The main difficulty with starting up a fishery there ...

   Meeting Document : WG-EMM-96/05 : Autor(es): Makarov, R.R.

4. Stable isotope analysis of Southern Ocean fish tissue samples to investigate trophic linkages of Antarctic toothfish (Dissostichus mawsoni)

   Atlantic, and sperm whales from the Gulf of Mexico. There was high variance in?15N and?13C values for each ... may be due to ontogentic changes in diet, and/or progressive consumption of larger individuals of the ... same species with age. There was significant residual variance in?15N and?13C values for each of the ... not explained by the isotopic composition of prey sampled in that area. This may be due to: (1 ...

   Meeting Document : WG-EMM-07/19 : Autor(es): M.H. Pinkerton, S. Bury, S.M. Hanchet and D. Thompson (New Zealand)

5. 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 : Autor(es): Frolkina, Zh.A

6. 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 : Autor(es): S.M. Hanchet, D.M. Tracey, A. Dunn, P.L. Horn and N. Smith (New Zealand)

7. 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 : Autor(es): Y. Takao, H. Yasuma, R. Matsukura and M. Naganobu (Japan)

8. 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 : Autor(es): F. Santa Cruz, B. Ernst and J.A. Arata

9. 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 : Autor(es): Delegation of USSR

10. 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 : Autor(es): K. Reid (United Kingdom)

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