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1. Small scale krill surveys: simulations based on observed euphausiid distributions

   aggregations. Calculations based on the power of surveys to reliably detect changes in mean density indicate ... be required to detect changes of 40% in the mean if CVs are as high as those obtained in the ... on the power of surveys to reliably detect changes in mean density indicate that with probability ... detect changes of 40% in the mean if CVs are as high as those obtained in the simulations. Resume ... SIBEX krill biomass surveys various systems of survey design and analysis were considered in order to ... contour lines in krill abundance, and this meant across the mean direction of ocean currents. Some of the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 245–256 : Author(s): Agnew, D.J. and S. Nicol

2. An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island

   ~ p e 6 y m ~ p a 3 ~ e n b ~ o r o ynpasneHaa 14x npoMbrcnoM. I I p e a o x p a ~ t ~ ~ e n b ~ b ~ e orpaHmeHm Ha BbInOB, PaCCYMTaHHbIe ... conducted in 1990, 1992, 1993 and 1997. The assessments include estimates of all the parameters required ... of 900 tonnes in the 1997/98 season and 600 tonnes in 1998/99. File:  06delamare-etal.pdf ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 79–101 : Author(s): de la Mare, W.K., R. Williams and A.J. Constable

3. Age estimation and maturity of the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea

   Islands in 2004. Intensive analysis of otoliths from these specimens greatly increased confidence in the ... interpretation of otolith growth zone structure, supporting the otolith interpretation protocol used in previous ... BioRoss survey of the western Ross Sea and Balleny Islands in 2004. Intensive analysis of otoliths from ... these specimens greatly increased confidence in the interpretation of otolith growth zone structure ... , supporting the otolith interpretation protocol used in previous work on this species. Von Bertalanffy growth ... spp.) in the waters in and near the Ross Sea, Antarctica, has operated each year since 1998 (Hanchet ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 291–303 : Author(s): Marriott, P.M., M.J. Manning and P.L. Horn

4. Species identification and age estimation for the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea

   - rid otoliths, for subsequent ageing, on two com- mercial longline trips to the Ross Sea (CCAMLR ... toothfish fishery in the Ross Sea dependency in 2002 were identified by observers and returned to New ... in the Ross Sea (CCAMLR Subarea 88.1). The zones are assumed to form annually as this ageing ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 37–51 : Author(s): Marriott, P., P.L. Horn and P. McMillan

5. Some comments on the procedure for testing estimators of krill abundance which utilise survey data

   a este respecto. 1. IN1RODUCTION A "straightforward" approach to abundance estimation from surveys ... indeed likely to provide improved performance in practice. Such studies require a simple method for ... provide an encouraging improvement in fits to the distribution of inter-swarm distances observed on the ... suggestions are made in this regard. File:  11-Butterworth-et-al.pdf ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 191–205 : Author(s): Butterworth, D.S., D.L. Borchers and D.G.M. Miller

6. A potential feedback approach to ecosystem-based management: Model Predictive Control of the Antarctic krill fishery

   whether a feedback approach is likely to achieve the multiple objectives that EBM implies in the complex ... Control (MPC) to achieve objectives for a harvested species, its predators and the fishery, in a ... spatially resolved annual catch limits in response to estimates of the state of the system. It suggests that ... CCAMLR aims to develop a feedback manage- ment approach for the Antarctic krill fishery in the Scotia ... spatial and temporal variability in the ecosystem and sub- stantial uncertainty in current understanding ... activities (dis- tribution and level of krill catch and/or research) in response to the state of monitored ... indicators’ (SC-CAMLR, 2011). The harvest strategies and decision rules used in modern fisheries manage ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 119–137 : Author(s): Hill, S.L. and M. Cannon

7. Revised estimates of seabed areas within the 500 m isobath of the South Orkney Islands (subarea 48.2) and consequences for standing stock biomass estimates of nine species of finfish

   250-500 m depth intervals. The updated estimates are about 1 424 (20%) n miles larger in area within ... the 50-500 m isobaths than Everson's estimates, though changes in area are specific to the depth ... interval. There is a corresponding change in estimated biomass within strata when these areas are ... miles larger in area within the 50-500 m isobaths than Everson's estimates, though changes in area are ... specific to the depth interval. There is a corresponding change in estimated biomass within strata when ... biomass estimates from bottom trawl surveys using 'swept- area' models. In most cases, these types of ... estimates are a product of the strata area squared, where Hence, errors or bias in computation of seabed ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 197–204 : Author(s): C.D. Jones

8. Comparison of age readings from scales and otoliths of the Patagonian toothfish (Dissostichus eleginoides) from South Georgia

   region (Subarea 48.3). In 44% of specimens, age readings from both structures were identical. A Wilcoxon ... test for paired data (Ts = 0.256, n = 59) conducted on the remaining 56% showed that differences in age ... which relates maximum observed age to natural mortality. In this case we used M = 0.13, which is the ... 48.3). In 44% of specimens, age readings from both structures were identical. A Wilcoxon test for ... paired data (Ts = 0.256, n = 59) conducted on the remaining 56% showed that differences in age estimates ... maximum observed age to natural mortality. In this case we used M = 0.13, which is the value recommended ... Shag Rocks in the west to Macquarie Island in the east (Gon and Heemstra, 1990). The bathymetric ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 191–203 : Author(s): Cassia, M.C

9. Feeding and food intake of Electrona carlsbergi (Tåning, 1932) Myctophidae

   / Description:  In summer and autumn Electrona carlsbergi feeds mainly on copepods. Daily food intake estimated ... . carlsbergi during the year in the waters to the south of the Antarctic Convergence is about 15 times fish ... CARLSBERGI (TANING, 1932) MYCTOPHIDAE O.V. Gerasimova* Abstract In summer and autumn Electrona ... fish body weight. The amount of food consumed by E. carlsbergi during the year in the waters to the ... carlsbergi (Tdning) is one of the most abundant species of the Myctophidae family living in the Southern ... in different parts of the Southern Ocean. (Kozlov, Tarverdieva, 1989; Oven et al., 1990; Tarverdieva ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 411–416 : Author(s): Gerasimova, O.V.

10. Chilean krill fishery: analysis of the 1991 season

    data and its use in studying small-scale spatial distribution of catches. The results show that krill ... fishing in Subarea 48.1 is particularly intense near CEMP sites. Other ways of using of haul-by-haul data ... -by-haul data and its use in studying small-scale spatial distribution of catches. The results show ... that laill fishing in Subarea 48.1 is particularly intense near CEMP sites. Other ways of using of ... size, distribution and composition of commercial kriU catches, including likely future trends in these ... second meeting of WG-KriU in 1990 there was some discussion on the use of haul-by-haul data (SC-CAMLR ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 273–287 : Author(s): Marín, V.H., A. Mujica and P. Eberhard

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