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1. Distribution, biomass and characteristics of the Euphausia superba fishery around South Georgia (Subarea 48.3)

   variability and the wide range of biomass values obtained which in turn leads to uncertainty in interpreting ... variability in the scale of krill swarms and to attempt to determine more reliable values of its biomass after ... in a month. It also usually decreases in spring, regardless of the type of water circulation. Annual ... differences in krill biomass are undoubtedly associated with the volume of krill brought here by waters of the ... biomass bearing in mind the vertical distribution characteristic of euphausiids. Mean biomass was also ... and the wide range of biomass values obtained which in turn leads to uncertainty in interpreting kriU ... in the scale of krill swarms and to attempt to determine more reliable values of its biomass after a ... eight times in a month. It also usually decreases in spring, regardless of the type of water ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 123–147 : Autor(es): Latogursky, V.I., R.R. Makarov and L.G. Maklygin

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

   support the notion of a “patches within patches” model for the distribution of krill in the southern ... distributions in Part II. General considerations about the theory of abundance indices for pelagic, schooling ... species are discussed. In particular, the importance of the time spent searching for swarms is highlighted ... , (ii) I recommend that fishing vessels begin to indicate in their log books the amount of between trawl ...

   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.

3. Analysis of haul data from the South Georgia krill fishery

   focused, operating in a limited area along the shelf edge on the northern coast of the island. Each day ... abundance indices that are sensitive to changes in biomass. The focused nature of the fishery at South ... Paper Title:  Analysis of haul data from the South Georgia krill fishery Abstract / Description ... :  Data from individual hauls carried out by vessels operating in the South Georgia krill fishery between ... . Table 2: Mean time duration in minutes for different stages of the fishing process. Mean, standard ... that are sensitive to changes in biomass. The focused nature of the fishery at South Georgia suggests ... , understanding changes in the perceived abundance of krill requires an understanding of a wide variety of ... , when, and how a fishery operates. In order to encourage the recording of appropriate data ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 9–30 : Autor(es): Trathan, P.N., I. Everson, E.J. Murphy and G.B. Parkes

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

   species in the fisheries of the Southern Ocean. In Division 58.5.1, a directed trawl fishery has been in ... operation since 1984/85 and has expanded in the deep western sector of the Kerguelen Shelf. This fishery ... Paper Title:  Biology and harvesting of Dissostichus eleginoides around the Kerguelen Islands ... harvests the sub-adult/adult part of the stock. Fishing effort and corresponding catches are very variable ... is becoming an increasingly important species in the fisheries of the Southern Ocean. In Division ... . REFERENCES CHECHUN,1.S. 1984. Feeding and food interrelationships of some sub-antarctic fishes in the ... question of fecundity of the Patagonian toothfish, Dissostichus eZeginoides, in the region of the ... percentage of the total catches for each species over the considered period is indicated in parentheses ...

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

5. Age determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula subarea (Subarea 48.1)

   scale readings gave a result of one year more. This could arise from the difficulty in differentiating ... Paper Title:  Age determination of Notothenia gibberifrons from the South Shetland Islands ... between false and annual checks in scales. Age determination by otolith cross sections proved to be the ... those in the same age group around South Georgia. Likewise, our values are lower than the ones reported ... workshop held in Moscow in July 1986, and at the annual Scientific Committee meetings. As a result of the ... Barrera-Oro (1985). The otoliths of 95 Low I. specimens and 37 Potter Cove specimens were cut in sections ... second were selected for age determination. Sections were cut in the transverse plane of the otolith ... sometimes cut in halves, in order to compare the results of their readings with * The material used in ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 143-160 : Autor(es): Barrera-Oro, E.

6. Catch-at-age analysis applied to new fisheries: the case of Dissostichus eleginoides

   Abstract / Description:  Traditionally, the approach used in the assessment of new fisheries has been based ... resource by coarse methods. The main aim of such surveys is to monitor fishing operations in order to ... Dissostichus eleginoides off the south of Chile which is being conducted in accordance with CCAMLR regulations ... Paper Title:  Catch-at-age analysis applied to new fisheries: the case of Dissostichus eleginoides ... , the approach used in the assessment of new fisheries has been based on research surveys, making it ... of a comprehensive, statistically-based sampling plan. In developed fisheries, the evaluation ... appears to be the best way of performing scientific research in remote areas in an economically feasible ... population; • the stock is in a state of equilibrium before the commencement of research surveys ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 3–9 : Autor(es): Zuleta, A.V. and C.A. Moreno

7. Effects of different harvesting strategies on the mackerel icefish Champsocephalus gunnari around South Georgia

   fishing proved to be the least preferable harvesting alternative. In the absence of regular recruit ... Paper Title:  Effects of different harvesting strategies on the mackerel icefish Champsocephalus ... gunnari around South Georgia Abstract / Description:  The effects of a number of harvesting strategies on ... the mackerel icefish (Champsocephalus gunnari) have been simulated for a period of 30 years. These ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 77–100 : Autor(es): Köster, F.W. and K.-H. Kock

8. On the instantaneous natural mortality rate of Champsocephalus gunnari, South Georgia (Subarea 48.3)

   composition of catches from 1964/65 to 1968/69 and the age/length key for the first half of 1972 were used in ... Paper Title:  On the instantaneous natural mortality rate of Champsocephalus gunnari, South ... Georgia (Subarea 48.3) Abstract / Description:  The instantaneous rate of natural mortality (M) of ... Champsocephalus gunnari in the South Georgia area was assessed using six different methods. Data on size ... . In practically every case the estimate of the mean value of M was either equal to or greater than ... * * Abstract The instantaneous rate of natural mortality (M) of Champsocephalus gunnari in the South Georgia ... 1968/69 and the age/length key for the first half of 1972 were used in the calculations. The results ... Assessment used M=0.50 in its calculations as well as the previously accepted estimate of 0.35. Since ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 313–326 : Autor(es): Frolkina, G.A. and R.S. Dorovskikh

9. Estimation of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial distribution

   ‘effective sample size’ (ESS) in integrated assessments is an approximate but simple way of modelling the ... empirical coefficient of variation (CV) in the proportions, with one being based on an existing CV model ... method. To account for process error in the calculation of the ESS, the lack of fit of the age-structured ... random variation across years in one of the selectivity function parameters and similarly for the ... approximation to the true distri- bution of N is correct up to second-order moments in that the mean and (co ... Email – steve.candy@aad.gov.au Abstract The incorporation of ‘effective sample size’ (ESS) in ... for the empirical coefficient of variation (CV) in the proportions, with one being based on an ... than the best haul-level method. To account for process error in the calculation of the ESS, the lack ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 115–138 : Autor(es): Candy, S.G

10. An overview of Southern Ocean zooplankton data: abundance, biomass, feeding and functional relationships (submitted to the 2008 Joint CCAMLR-IWC Workshop)

    for differences in the extent of identification of early larval stages. Likewise, the time of year ... overview is provided of the diversity and basic biology of SO zooplankton, with an emphasis on abundance ... , distribution and feeding. Second, advice is provided on the uses, strengths and limitations of zooplankton data ... as inputs to SO data compilations or food-web models. Copepods overall comprise >75% of the SO ... been published in a wide variety of journals. The data behind these publica- tions are mainly outside ... , insights are provided for modellers of caveats in data compi- lations and in the functional rate processes ... in the SO range over four orders of magnitude in body size, from tiny (<100 μm) copepod nauplii to ... total mesozooplankton across most of the SO in terms of biomass, abundance, grazing activity and ...

    Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 171–218 : Autor(es): A. Atkinson, P. Ward, B.P.V. Hunt, E.A. Pakhomov and G.W. Hosie

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