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1. Estimating unaccounted fishing mortality in the Ross Sea region and Amundsen Sea (CCAMLR Subareas 88.1 and 88.2) bottom longline fisheries targeting Antarctic toothfish

   to the 10th and 90th percentiles of the bootstrap distributions. Year/ area Fishery catch (tonnes) 10th ... and 90th percentiles of the bootstrap distributions. Year/ area Fishery catch (tonnes) 10th ... are de- signed to be stable in seawater and may retain their structural integrity for many years ... to better CCAMLR Science, Vol. 19 (2012): 17–30 17 ESTIMATING UNACCOUNTED FISHING MORTALITY IN THE ROSS ... counted in estimates of total fishing removals or otherwise accounted for in stock assessment models. The ... average 208 tonnes of Antarctic toothfish mortality may be unaccounted for annually. While the current ... incorporated as sensitivity analyses in the 2011 stock assessments for the Ross Sea region and Subarea 88.2 ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 17–30 : Author(s): Webber, D.N. and S.J. Parker

2. Food and feeding of the mackerel icefish (Champsocephalus gunnari) around South Georgia in January/February 1991

   .%), myctophids (Electrona sp., Gymnoscopelus sp.) (1.8%), early life stages of fish (C. gunnari primarily age ... 80 60 40 20 0 Month 11-111 11-111 11-111 111-IV VIII 1-111 XII-I 11-111 Ill IV-V 11-111 ... and interannual variation has been comparatively well studied qualitatively (see reviews in Kock, 1981; Wilhelms ... or lanternfish (Myctophidae) are of minor importance. In years when krill is abundant it represents the staple ... stomachs and the feeding intensity were uncommonly low in a period when energy rich food is needed for the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 15–23 : Author(s): Kock, K.-H., I. Everson, S. Campbell, G. Parkes, Z. Cielniaszek and J. Szlakowski

3. Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island

   50 to 100 m in the day while at a shallower range from 20 to 50 m at night. In the offshore foraging ... , tending to be at a deeper range from 50 to 100 m in the day while at a shallower range from 20 to 50 ... Ha r JIy6HHe 50-100 M, a HOqblO 6JIH)I{e K nOBepxHocTH B ,l(Hana30He 20-50 M. B HarYJIbHbIX apeaJIax ... ) 1- U. 0 0- I I r-f I 1 I I I 1-1--"1 ...... '" cv 0" ~ g;, () 20 30 40 50 60 ~~~~~ ~ ~~~~£1 " " " " Body length ( mm ) Maturity stages Figure ... , tending to be at a deeper range from 50 to 100 m in the day while at a shallower range from 20 to 50 ... 50 a 100 m de jour alors qu'il frequente une couche moins profonde, de 20 a 50 m de nuit. Au large ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 273–285 : Author(s): Ichii, T., H. Ishii, J.L. Bengtson, P. Boveng, J.K. Jansen and M. Naganobu

4. Preliminary analyses of data collected during experimental phases of the 1994/95 and 1995/96 Antarctic crab fishing seasons

   . CO~J I~CHO pe3yJIbTaTaM, IlOJIyYeHHbIM np11 MCnOJlb30BaHkiM 0606LlJeM~bl~ ZlAAMTHBHbIX ... B pe3ynbTaTe 3KCIIePMMeHTOB n0 MCTOWeHMH) B XOAe 3 ~ a I I a 2, He XapaKTepH30BanMCb CYqeCTBeHHbIMM ... P. ~ p i n o s i ~ ~ i m a . BO~MOXHOCT~ HCIIOJlb30BaHMR ~IIpe~eJIll~enefi MCTOWeHMX AJIX OUeHKkI YMCneHHOCTH ~ p a 6 o ~ Hp11 ... ~ @ @ ~ K T H B H O C T M o n p e ~ e n ~ ~ e n e i noKanbHoro McToWeHHx Ana acnonb30sa~~x npa oqearte sanaca. T ~ M He MeHee Pa6o~ax rpynna AHTKOMa ... suggested that depletion estimators will not be appropriate tools for estimating local abundances of P ... liberty for about one to five weeks. The recaptured crabs had minimum movement rates of 0.08 to 0.25 n ... miles/day. Mark-recapture estimates of standing stock and density were made for the area around Phase 2 ... attempts were made to account for biased sampling of recaptured crabs and the movement of crabs away from ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 141–159 : Author(s): Watters, G

5. 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

   examined, the point estimate of total biomass increased from 5 to 30% for eight species and decreased by 20 ... increased from 5 to 30% for eight species and decreased by 20% for one. ... and 250-500 m depth intervals. The updated estimates are about 1 424 (20%) n miles larger in area within ... estimates are about 1 424 (20%) n miles larger in area within the 50-500 m isobaths than Everson' ... OqeHKa o6qet ~ H O M ~ C C ~ I BO3pOCna Ha 5-30% AJIR 8 BHAOB M COKpaTHJIOCb Ha 20% AnR OifHOrO ... biomasse totale a augmente de 5 a 30% pour huit especes et diminuk de 20% pour la neuvieme. Eb1JTa ... no HHTerPHPOBaHHbIM 6 a 3 a ~ AaHHbIX An2 50-M~TPOB~IX rOPH30HTOB. P ~ C Y ~ T ~ I OCHOBbIBZUIllCb Ha ... total aumento entre 5 a 30% para ocho de las nueve especies de peces examinadas, y disminuy6 en 20 ...

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

6. The use of analysis of penguin stomach contents in simultaneous study of prey and predator parameters

   of penguins (e.g. sex, age, etc.) may be considered as representative selection factors and also, would ... reflect particular characteristics of penguins (e.g. sex, age, etc.), which may be responsible ... of blocks based on penguin characteristics (sex, age, beak size, reproductive condition, etc.) can be used ... 1-............. _ .......... _ .... " ...... --............................................... " .... -................................ " ...................... " .... " .... " .............................. " ............... " ................ " .......... " ..................... " .... " .............. .. 1 0 1-.. "'" .' .'"."."." " ....... "--.... '" .. " .. " ............ " . --. " .. ""." .......... " ... "." ..... " .... -.. " .. --." .. --............... ' ... " ---......... " ............. " ..... -.. " .. ,,' ...... . .._ ...... o IL-______________ L-______________ ~ ______________ J-______________ ~ o 10 20 30 40 dec 13 1987 ... proposed as being the correct approach for analysis because lack of independence between krill specimens ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 367–375 : Author(s): Marschoff, E. and B. González

7. Some principles for fisheries regulation from an ecosystem perspective

   not be representative of a population as a whole because of tendencies for animals to segregate by size, age ... such as that of Beverton and Holt (1956) is to predict optimum levels of fishing mortality and age at first fishing ... from estimates of growth curves and age-structure of an exploited fish stock. This method falls ... una tarea compleja que - 325 - irnplica el an.Hisis de sisternas. Se debate brevernente sobre la ... Paper Title:  Some principles for fisheries regulation from an ecosystem perspective Abstract ... regulation of fisheries from an ecosystem perspective, under the Convention for the Conservation of Antarctic ... 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 ...

   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.

8. Abundance, size and maturity of krill (Euphausia superba) in the krill fishing ground of Subarea 48.1 during the 1990/91 austral summer

   curve for krill (Siegel, 1987), length modes of 45 mm and 30 mm correspond approximately to ages ... 3+ and 1 + years respectively. The 49 mm length mode is possibly composed of mostly age 4+ and older, considering ... pp. SIEGEL, v. 1987. Age and growth of Antarctic Euphausiacea (Crustacea) under natural conditions ... are independent, that the regression of expected number of animals on transect length should pass through ... sampling surveys for krill were conducted in the krill fishing ground north of the South Shetland Islands ... were generated, suggesting that hydrodynamic convergence might be responsible for accumulation of krill ... been lower than expected until early February 1991. As for maturity stages of krill, spawning krill ... neritic and nearshore zones. This indicates that slope frontal features may be important for the formation ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 183–199 : Author(s): Ichii, T., H. Ishii and M. Naganobu

9. Defining smaller-scale management units to further develop the ecosystem approach in managing large-scale pelagic krill fisheries in Antarctica

   . The basic principles for defi ning a unit are most easily explored in terms of the structure of animal ... populations. A group of animals that are continuously distributed throughout a favourable habitat is called ... ., 2000 for review). The predator unit is constrained by the spatial location and extent ... and distribution of krill in the South Atlantic have been published over the last decade, with the most recent ... define predator units. The derived conceptual model is then used to formulate an approach for developing ... the principles and approach required for developing small-scale management units to take account of ... predators’ needs when managing the fishery for Antarctic krill. It provides a theoretical foundation for ... ecosystem but should be sufficiently independent for fishing in that unit not to inadvertently affect ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 117–131 : Author(s): Constable, A.J. and S. Nicol

10. Optimization of survey sampling design in the detection of interannual variability and prey size selectivity in the diet of penguins

    WG-CEMP-90/9 OPTIMIZATION OF SURVEY SAMPLING DESIGN ... and Gonzalez (1989), comparison between years results naturally in a new level added at the top. Exact F tests ... are obtained dividing the mean square for "years" group by the mean square for "dates-within-years" group ... Model 11 ANOVA), the expected mean square for "years" group is: (1) 553 where aicp ... results of a survey of prey size in Adélie penguins, sampling designs intended for the detection of inter ... inter-annual variation for mean prey size is fixed at 10%; the test power is taken as 0.9 and Type I ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 551–559 : Author(s): Marschoff, E. and B. Gonzalez

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