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1. Attribtuion of acoustic echoes to squid in the south Atlantic

   order to characterise an acoustic signature that may be used to identify this species of squid ... is an advantage for making a positive identification of echoes. An initial review of the echocharts ... ). Calibrations were carried out in a deep, sheltered inlet at South Georgia on two occasions in mid-January and ... area at a depth of 25 m for 12 hours and caught an estimated 2 300 M. hyadesi (Table 2). No other ... reproduced as Figure 2. Most of the haul (the first seven hours) was through an area notable for the ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 259–271 : Autor(es): Goss, C., P. Rodhouse, J.L. Watkins and A.S. Brierley

2. A quantified Bayesian Maximum Entropy estimate of Antarctic krill abundance across the Scotia Sea and in small-scale management units from the CCAMLR-2000 Survey

   area. Density values for the unsurveyed off-transect portions of the survey area were inferred, and ... thus values for total biomass across the survey area, and within individual small-scale management ... estimated due to the sparseness of data in these regions. The MaxEnt formalism allows an objective choice of ... the parameters of the estimation method, and hence an objective choice of the most probable ... certain SSMUs have been based on the density determined for nearby strata (Hewitt et al., 2004b ... density distribution maps generated by MaxEnt enable biomass values for the SSMUs to be inferred on a ... values on a two-dimensional grid can naturally be viewed as a pixellated image or picture. The problem ... data can be considered as an image in which krill densities are plotted on a rectangular grid, with ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 97–116 : Autor(es): Heywood, B.G., A.S. Brierley and S.F. Gull

3. Status of the Polish FIBEX acoustic data from the West Atlantic

   variation which has previously been reported for the area and shown to be important. File:  10trathan ... calibration at the time of FIBEX (BIOMASS, 1986). Calibration was undertaken on two separate occasions; the ... C is (BTOMASS, 1991). an equipment constant (20 dB). MVBS values with time and positional data ... m isobath is shown for reference. than -87.5 dB (including those values on transect heads). The 1 ... that based on the old TS estimates. The new overall density estimate for both strata is approximately ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 125–132 : Autor(es): Trathan, P.N., J. Kalinowski and I. Everson

4. A review of the trophic role of mesopelagic fish of the family Myctophidae in the Southern Ocean ecosystem

   on the dietary requirements of myctophids are vital for assessing the role of these fishes in the ... for myctophids. Mean yearly production of zooplankton in this area is 1.2 billion tonnes (Voronina ... high latitudes (62" to 65"s; sometimes even further south) where ACC waters extend southward. Years ... in the food chain. This study is mainly based on published and unpublished results of research ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 71–77 : Autor(es): Kozlov, A.N

5. Natural mortality of grey rockcod (Notothenia squamifrons) in various areas of the Indian sector of the Southern Ocean

   rockcod (Notothenia squamifrons) on the Ob and Lena Banks and the Kerguelen Shelf were determined using ... were 0.38, 0.36 and 0.33 for the above areas respectively. These values are comparable with those ... derived for most notothenioids. File:  11-Zaitsev.pdf ... on the Ob and Lena Banks these were 6.6 and 6.2 years respectively, while for the Kerguelen Islands ... and Lena Banks and 1969 to 1972 for the Kerguelen Islands). Data on 2 to 15 year old fish were used ... were established to be 5.9, 5.2 and 7.6 years. The value for M in the Kerguelen Islands area is ... (T m), comprising not less than 0.5% of the total sample (Babayan et al., 1984). For an exploited ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 141–146 : Autor(es): Zaitsev, A.K.

6. Biology and harvesting of Dissostichus eleginoides around the Kerguelen Islands (Division 58.5.1)

   biological information on population dynamics, as well as demographic structures and trends observed in an ... from year to year and highly dependent on the harvestable resources of Champsocephalus gunnari. Vital ... (Division 58.5.1) Abstract / Description:  Dissostichus eleginoides is becoming an increasingly important ... abundance index, is provided. Prospects for exploitation are discussed with respect to the development of ... well as demographic structures and trends observed in an abundance index, is provided. Prospects for ... ) recorded for the Kerguelen Islands fishery (Division 58.5.1) since the establishment of an EEZ. The ... establishment of an EEZ. Total and directed fishing effort (Western area) for Dissostichus eleginoides (in ... indicated with an arrow. Li~t of Figures Length frequency distribution of Dissostichus eleginoides for ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 85–106 : Autor(es): Duhamel, G.

7. 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 : Autor(es): Mangel, M.

8. 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 ... 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 ... ci 40 0, 2 40 , 2 40 N o d if fe re nt ia ti on Z an e et a l., 1 99 8 63 m ... tD N A h ap lo ty pe s 70 , 6 8, 6 3, 4 8 D if fe re nt ia ti on M eg an yc ti ph ...

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

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

   with an approximately linear relationship existing between depth and fish length. A statistically ... Georgia. This concentration of large post-spawning fish may have some implications for the management of ... both up and down slope at particular times of year. Months with a high mean length at depth are May and ... sampling the catch and two for recording events on deck. Some flexibility was required with this system ... together accounted for 47% of the catch of the 11 vessels that took part in the fishery. Most of the ... 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 ...

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

10. Prey monitoring surveys: a discussion of the characteristics necessary in prey surveys

    surveys Abstract / Description:  The CCAMLR Ecosystem Monitoring Programme requires information on prey ... distribution to relate to changes in predator demography. The paper discusses the constraints imposed on such ... before or during the monitoring period. This places an immediate constraint on the timing and ... . The remaining parameters require information on the availability of krill in an undefined region ... prey locally but the logistics of mounting large scale surveys on an annual basis currently preclude ... comments on an early draft of this manuscript. - 385 - Table 1. Consideration of predator parameters ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 377-391 : Autor(es): Everson, I.

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