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1. Analysis and modelling of the Soviet Southern Ocean krill fleet

   / Description:  The first part of this document contains an analysis of data pertaining to the Soviet krill ... support the notion of a “patches within patches” model for the distribution of krill in the southern ... aggregate into swarms of krill. The swarms then aggregate into concentrations, which are the foci for the ... model is developed for a survey vessel that does no fishing, but simply locates concentrations of krill ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 127–235 : Auteur(s): Mangel, M.

2. Location and intensity of the Soviet krill fishery in the Elephant Island area (South Shetland Islands), 1988/89

   maximum, for the last nine seasons the total fishing intensity by the USSR around Elephant Island has been ... (north of Elephant Island) and start searching for krill concentrations; (ii) krill concentrations are ... km/day (11 to 13 cm/sec). An analysis of the location of fishing grounds by five-day periods showed ... highest catch-per-unit-effort was observed in January 1989 (7.7 tonnes per hour of trawling on average ... ) one or two vessels enter the Elephant Island area and start searching for krill concentrations ... drifted northeast for about 105 to 120 n miles (194 to 222 km) from 1 to 20 December 1988 (Figures 6a to ... ) ( tonneslhour) 1988: 21 to 25 November 333 6.6 50.4 3.60 26 to 30 November 1636 29.4 55.6 3.50 Total for ... 90.8 5.28 16 to 20 March 965 13.7 70.4 5.40 21 to 25 March 706 14.0 50.4 3.95 Total for March 7401 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 305–335 : Auteur(s): Sushin, V.A. and A.S. Myskov

3. By-catch of fishes captured by the krill fishing vessel Chiyo Maru No. 2 in Statistical Area 58 (January to March 1995)

   amount of krill that was subsampled for making observations on fish by-catch. The by-catch data from the ... size (as a fraction of haul-specific krill catches) for observers collecting data on fish by-catch ... variances are calculated from the delta distribution. In numbers, an average of about 14 fish were caught ... per tome of krill, and an average of about 25 fish were caught per hour of towing. In weight, an ... , respectively, the mean and variance of the lognormally distributed observations for which X > 0. I,[x] is an ... kg of krill was subsampled for by-catch; this was an order of magnitude less than the next smallest ... 'unknown myctophids' occurred in 20% of the hauls sampled for by-catch (Table 1). Other fish species ... hauls for by-catch (recall that Table 1 includes 20 'useable' hauls). Unfortunately, sampling ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 111–123 : Auteur(s): Watters, G

4. Survey of Antarctic fur seals in the South Shetland Islands, Antarctica, during the 1986/87 austral summer

   sites for combined fur seal and penguin monitoring activities, as part of the CCAMLR Ecosystem ... largest pupping sites are at Telmo Island and Cape Shirreff, on the north coast of Livingston Island ... 4000 individuals. Notes on other pinniped species observed during the survey are presented. The optimal ... on beaches for their annual molting period) were sighted often. Counts of all pinnipeds were tallied ... observer, there appears to be sufficient space on the Stigant Point beaches for rookery growth. These ... during the survey are presented. The optimal sites for combined fur seal and penguin monitoring ... by species, with no differentiation made between age and sex classes except for fur seals. At ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 427-440 : Auteur(s): Bengtson, J.L., L.M. Ferm, T.J. Härkönen, E.G. Schaner and B.S. Stewart

5. Sources of variance in studies of krill population genetics

   these species would affect the design of management strategies for their conservation. A recent ... taken within one region. This has important implications for the design of future studies of krill ... 94ºC for 2 min to denature template DNA, followed by thermal cycling at 94ºC 20 s, 43ºC 1 min and ... for 20 min and the gel transfer- red onto a UV transilluminator. The gel was photographed through a ... number of trawl hauls necessary to get an unbiased estimate of these population parameters for krill ... et ho d s an d s am pl in g st ra te gi es u se d i n po pu la ti on g en et ic ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 107–116 : Auteur(s): Jarman, S.N. and S. Nicol

6. Choosing distance between acoustic survey tacks

   on the basis of typical size of the surveyed region, allowable relative error in the biomass estimate ... stock exploitation rate and other factors, we have to estimate the biomass with an error 8B~30 ... , ~ , ~,,~" !,I I6~,\ :::::;::""""-1:~:,~ 30~ ~ <: I:' · .. . I·"'t:':::::"............ --=:z"=~ 20% '= I,' 7 ... transverse size k>l. Such configuration is typical for concentrations on shelves. In this case, the tacks ... Krasnoselskaya, 17 Choosing the frequency of survey tacks is an important aspect of acoustic surveying ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 153-164 : Auteur(s): Kalikhman, I.L., Z.I. Kizner, B.R. Zaripov and W.D. Tesler

7. Depth distribution and spawning pattern of Dissostichus eleginoides at South Georgia

   with an approximately linear relationship existing between depth and fish length. A statistically ... both up and down slope at particular times of year. Months with a high mean length at depth are May and ... Georgia. This concentration of large post-spawning fish may have some implications for the management of ... sampling the catch and two for recording events on deck. Some flexibility was required with this system ... inter- cruise time consisting of about a week's return to port for landing the catch. Two observers ... line haul was divided into hourly or half-hourly periods, two periods being chosen at random for ... calculated for each haul, and an array of mean length by haul, area, depth and vessel was produced. In ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 19–36 : Auteur(s): Agnew, D.J., L. Heaps, C. Jones, A. Watson, K. Berkieta and J. Pearce

8. Characteristics of krill swarms from Prydz Bay

   inter-swarm length were calculated for swarms of euphausiids encountered along a 78 km transect over the ... Euphausia crystallorophias. An increase in swarm length was seen with increasing distance from the coast ... CCAMLR.AUS dataset available to the Subgroup on Survey Design was derived from a survey of Prydz Bay ... 1800 ~ I- l- I- I- 50 40 30 20 10 1002 c 80 !2: ~ 60 40 20 Figure 2: Log ... ) 60 50 40 30 20 10 1n (between swarm distance) Figure 3(b): Log transformed between ... - - - I- I -44 19 (kg) 50 0 40 ~ 30 20 10 70 60 50 40 30 20 10 I'J 0 0 ... ,:" •• .. .,:-. .- -10 L-~I __ -L __ -L __ ~I __ -L __ ~ __ ~~ o 10 20 30 40 50 60 70 80 distance along transect (km ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 177–189 : Auteur(s): Agnew, D.J. and I.R. Higginbottom

9. Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by acoustic surveys

   surveyed in two stages. Firstly, the area from 51 °30' to 56°00'S and between 20°30' and 26°30'W was ... Table 1. An oscilloscope was used to monitor input signals and an "Iskra-226" computer was used for ... . Specimens of 70 to 80 mm predominated. An echometric survey for myctophids, carried out from 18 to 31 ... February 1988 an echometric survey for myctophids was conducted in the Polar Frontal Zone from 48° to 51 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 417–431 : Auteur(s): Filin, A.A., K.V. Gorchinsky and V.M. Kiseleva

10. The use of predator-derived krill length-frequency distributions to calculate krill target strength

    performance is fundamental to an ecosystem-based approach to resource management. We propose a method using ... only a 1% difference, illustrating the need for simultaneous length-frequency data. By integrating data ... from land-based predators directly with automated on-board data collection systems it will be possible ... to be independent to avoid interrelated estimates. For South Georgia, there is a 20-year time ... ., 1999a), it would be insufficient to use, for example, an annual mean krill length frequency because ... echosounder on these voyages, we have neither the time nor the required personnel aboard ship for net ... 0.9% (1994) to 6.4% (1996) and is shown for all years in Table 1. There was a significant ...

    Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 155–163 : Auteur(s): Reid, K. and A.S. Brierley

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