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1. 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 ... catch and effort data provide about krill abundance or how easily can significant changes in krill ... 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 ...

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

2. Analysis and modelling of the Soviet Southern Ocean krill fleet, II: Estimating the number of concentrations and analytical justification for search data

   :>KHOrO OKeaHa. IIpH BbInOJIHeHHH npo6HbIX pac4eToB 6bIJIH HCnOJIb30BaHbI ,llaHHble, co6paHHble ... aKBaTopHH, OXBalleHHOH CbeMKaMH, HeCKOJIbKO YBeJIHlIeHO. MeCTOnOJIO:>KeHHe TpaJIeHHH, BbInOJIHeHHbIX cy ... , BbInOJIHeHHbIX cy ~HOM O,4HcceH. TpaJIeHH5I KJIaCCmpHI..\HpYIOTC5I no pa3Mepy YJIOBa. 06paTHTe BHHMaHHe Ha ... , BbInOJIHeHHbIX cy ~HOM MblC /JalIbHHH. TpaJIeHH5I KJIaCCmpHI..\HpYIOTC5I no pa3Mepy YJIOBa. 06paTHTe BHHMaHHe ... number of concentrations and analytical justification for search data Abstract / Description:  In this ... of concentrations of krill (Butterworth, 1988; Mangel, 1988) in a given region of the Southern Ocean ... . Sample computations are performed, using data collected by Soviet research/survey vessels in the early ... 1980s. These examples highlight the need for a navigational log as well as a fishing log in order to ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 283–322 : Author(s): Mangel, M.

3. Some principles for fisheries regulation from an ecosystem perspective

   ,l(HbIe YPOBHH 3KCnJIya TaI.{HH 6bInH nOTeHI.{Han bHO YCTOHqHBbIMH. 3TO nOTpe6yeT nOJIyqeHH.l1 OI.{eHOK ... / Description:  The paper discusses some principles to be considered in the formulation of a framework for the ... Marine Living Resources. An important task in this formulation is to derive subsidiary objectives for ... out in the Convention. An important property required for subsidiary objectives is that they are ... framed in terms of quantities which can be robustly estimated, thus allowing the degree to which ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 323-339 : Author(s): de la Mare, W.K.

4. Survey design to estimate krill abundance during FIBEX

   methodology for assessing the abundance of krill. The survey design used in the southwest Atlantic study area ... of the FIBEX is described in this paper. Sampling involved the use of echo sounders for estimating ... krill abundance as well as collection of data on the size, density and distribution of krill swarms. In ... also collected. The study area was subdivided into several geographically distinct subareas in each of ... of krill. The survey design used in the southwest Atlantic study area of the FIBEX is described in ... collection of data on the size, density and distribution of krill swarms. In addition, information on ... study area was subdivided into several geographically distinct subareas in each of which randomly ... was used. The survey was done in two phases. In the first phase a fairly evenly dispersed subsample ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 253–263 : Author(s): Everson, I., I. Hampton and G.M. Jolly

5. Sensitivity investigation of the SDWBA Antarctic krill target strength model to fatness, material contrast and orientation

   model is recognised as state-of-the-art in predicting acoustic target strength (TS) from fluid-like ... TS of Antarctic krill (Euphausia superba) for use in the acoustic echo-integration method. In this ... the distribution of animal orientations. Due to the high variability of TS to realistic changes in ... variability of krill in the area of investigation. In a multifrequency context, the girth–length relationship ... (TS)) is known. TS of an aquatic organ- ism can either be measured directly (in situ or ex situ) or ... modelled (Foote, 1991). In the case of zooplankton, due to the complexity of the scatter- ing processes ... , the acoustical estimates rely on the best aspects of both approaches. In recent decades, large ... acoustical impedance contrast. The latter depends on the difference in density and sound speed between the ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 97–122 : Author(s): Calise, L. and G. Skaret

6. Some specific features of the USSR krill fishery and possibilities of applying fishery statistics to studies of krill biology and stocks

   their exploitation are considered. Using data obtained by the scouting vessel Globus engaged in regular ... the vessel rather than with krill abundance in a certain area. During preparations for regular fishing ... substantial fluctuations of catches during scouting operations often results in yields which do not correspond ... to the actual biomass of krill in the place in question. In both cases particular diurnal and long ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 237–252 : Author(s): Dolzhenkov, V.N., T.G. Lubimova, R.R. Makarov, S.S. Parfenovich and V.A. Spiridonov

7. A simulation study of krill fishing by an individual Japanese trawler

   . A major inconsistency is found: haul times are a factor of 4-5 times greater in reality than in the ... abundance indices (generally of a CPUE form) for krill biomass in the 600 n mile square oceanic sector ... modelled are considered, and their performance in response to a variety of ways in which the overall krill ... time) are of low utility in detecting biomass decline. Combination catch rate indices incorporating ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 1–108 : Author(s): Butterworth, D.S.

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

   - 14.8-38 cm). Otolith and scale readings have been compared in 19 Potter Cove specimens. In some cases ... scale readings gave a result of one year more. This could arise from the difficulty in differentiating ... 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 ... compared in 19 Potter Cove specimens. In some cases scale readings gave a result of one year more. This ... could arise from the difficulty in differentiating between false and annual checks in scales. Age ... from the Antarctic Peninsula Subarea are smaller than those in the same age group around South ... Otoliths/Scales/Bones Exchange System established by CCAMLR will help to eliminate discrepancies in age ...

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

9. Possible effects of different levels of krill fishing on predators – some initial modelling attempts

   CCAMLR Ecosystem Monitoring Program (WG-CEMP) in 1992, in order to investigate the possible effects of ... krill predator species. A 'one-way' interaction model is developed, in which krill abundance ... that variability in the annual recruitment of krill results in predator populations being less ... some krill predator populations, and on the possibility of biases in their estimation. These matters ... ) in 1992, in order to investigate the possible effects of krill fishing on krill predators. First ... ' interaction model is developed, in which krill abundance fluctuations impact on the predator population, but ... not vice versa. Computations based on this model indicate that variability in the annual recruitment ... of krill results in predator populations being less resilient to krill harvesting than deterministic ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Author(s): Butterworth, D.S. and R.B. Thomson

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

    (en russe). Trudy ZooZ. Ins. 127: 38-68. CHIKOV, V.N. and Y.S. MELNIKOV. 1990. On the question ... :. .............. \i,f····· ........................................................................................................... j J ,~l~,(.~r \:';.~~'"'I' I sector o 50 100 150 200 Lt (2 eIn interval) ~ Trawler Longliner Figure 3: Distributions de ... 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 ... biological information on population dynamics, as well as demographic structures and trends observed in an ...

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

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