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1. An assessment of the merits of length and weight measurements of Antarctic krill Euphausia superba

   an example given to indicate the potential such variation has for introducing error into estimates of ... Paper Title:  An assessment of the merits of length and weight measurements of Antarctic krill ... Euphausia superba Abstract / Description:  Published relationships of various length measurements as ... stage and moult stage. The range of coefficients and exponents for these relationships are examined and ... coefficients and exponents for these relationships are examined and an example given to indicate the ... potential such variation has for introducing error into estimates of biomass based on acoustic data. An ... - 371 - SC-CAMLR-VI/BG/33 AN ASSESSMENT OF THE MERITS ... ) Abstract Published relationships of various length measurements as predictors of wet or dry weight in ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 371-373 : Автор(ы): Morris D.J., J.L. Watkins, C. Ricketts, F. Buchholz, and J. Priddle

2. An assessment of the impact of krill fishery on penguins in the South Shetlands

   Paper Title:  An assessment of the impact of krill fishery on penguins in the South Shetlands ... Abstract / Description:  An assessment of the competition between the Japanese krill (Euphausia superba ... krill catch is very low in December while the catch rate for the following three months is roughly ... constant (3 000 to 10 000 tonnes/10-day period) due to an increase in fishing intensity in areas closer to ... 20 or 30 X 30 n miles from recent surveys (1989/90 and 1990/91). The krill biomass for each of ... respective colonies for chinstraps, 80 km for Adklies and 20 km for gentoos (Everson, 1987; Trivelpiece et ... Shetlands In Subarea 48.1 the Japanese catch has amounted to as much as 80% of the total catch for the ... , krill catches were calculated for each square of 10 minutes latitude by 20 minutes longitude (=l0 X 10 ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 107–128 : Автор(ы): Ichii, T., M. Naganobu and T. Ogishima

3. Timing of clutch initiation in Pygoscelis penguins on the Antarctic Peninsula: towards an improved understanding of off-peak census correction factors

   : towards an improved understanding of off-peak census correction factors Abstract / Description:  Penguin ... . In this paper the authors present an analysis relating to both these challenges. Clutch initiation ... dates for four penguin breeding sites are examined (Cape Shirreff, Admiralty Bay, Humble Island and ... (Pygoscelis adeliae), gentoo (P. papua) and chinstrap (P. antarctica)). A statistical model for determining ... and date, can be corrected to compensate for nest attrition to obtain an esti- mate of the breeding ... eight sites and years for which multiple nest counts were available for each of the three penguin ... involve increasing amounts of uncertainty regarding the estimate of CID. For Method 1, there was an ... mean CID at each of the sites and years for which data were available. On the x-axis is the mean day ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 149–165 : Автор(ы): Lynch, H.J., W.F. Fagan, R. Naveen, S.G. Trivelpiece and W.Z. Trivelpiece

4. Interactions of Patagonian toothfish fisheries with killer and sperm whales in the Crozet Islands Exclusive Economic Zone: an assessment of depredation levels and insights on possible mitigation strategies

   Crozet Islands Exclusive Economic Zone: an assessment of depredation levels and insights on possible ... whales were found to be responsible for the largest part of this loss (>75%), while sperm whales had a ... Islands 0 10 20 30 40 50 60 70 80 90 100 2003/04 2004/05 2005/06 2006/07 2007/08 Fishing ... depredation rate for that year, Tixier et al. 190 which could be an artefact related to the method used ... : Mean interaction rates of killer and sperm whales with longlines between 2003 and 2008. 0 10 20 30 ... 5 10 15 20 25 30 2003/04 2004/05 2005/06 2006/07 2007/08 Fishing season D ep re da tio n ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 179–195 : Автор(ы): Tixier, P., N. Gasco, G. Duhamel, M. Viviant, M. Authier and C. Guinet

5. The influence of bait quality on the sink rate of bait used in the Japanese longline tuna fishing industry: an experimental approach

   tuna fishing industry: an experimental approach Abstract / Description:  Experiments were conducted to ... . The addition of a 20 g lead sinker to a conventional 20 g tuna hook reduced the sink time of bait ... , 80% of small baits and 20% of large baits floated when thawed (Figure 1). As mentioned above, these ... the effect of added weight (sinkers) on the sink rates of bait. Lead sinkers weighing 10 g, 20 g, 30 ... measured. IRESULTS Table 1 shows the results of an analysis of variance testing for differences in ... baits tested in each treatment, all Table 1: Summary of an analysis of variance testing for the effect ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 123–129 : Автор(ы): Brothers, N., A. Foster and G. Robertson

6. Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric characteristic?

   Paper Title:  Can we use discriminant function analysis to sex penguins prior to calculating an ... , morphometric characteristics have separate distributions for males and females, and these often overlap. Whilst ... difference between the real mean characteristic for a sex, and the apparent mean derived by sexing the birds ... birds with greater than 80% success, the difference between the true and apparent mean is likely to be ... to combine males and females for the calculation of an index. This paper evaluates the suggestion ... that successfully determines the sex of more than 80% of birds is unlikely to yield an apparent mean ... estimates of a and b correspond to p of about 80%. This p derived for a single characteristic is lower than ... this latter case, the usual criterion for changes in an index within CEMP (10% change) could not be ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 259–272 : Автор(ы): Agnew, D.J.

7. Krill distribution in the western Atlantic sector of the Southern Ocean during 1983/84, 1984/85 and 1987/88 based on the results of Soviet mesoscale surveys conducted using an Isaacs-Kidd midwater trawl

   /84, 1984/85 and 1987/88 based on the results of Soviet mesoscale surveys conducted using an Isaacs ... according to the standard method for Isaacs-Kidd midwater trawls operating in the layer 0 to 100 m. Overall ... , 48.2 and 48.3) and for the whole study area. Survey results confirm current understanding of the ... needed to obtain such material. Previous surveys carried out annually over nearly 20 years covered only ... article we present an analysis of krill distribution using data obtained during three mesoscale surveys ... Evrika (20 January-9 March 1988) Figure 1: Station grid for krill sampling surveys. Krill ... " 50" 45" 40" 35" 30" Figure 4: Krill diskibution (g/ l 000 m3) in strata 0 to 100 m, 20 January to ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 59–70 : Автор(ы): Sushin, V.A. and K.E. Shulgovsky

8. Midwater trawl catchability as an aspect of a quantitative assessment of krill biomass conducted using a trawl census survey

   Paper Title:  Midwater trawl catchability as an aspect of a quantitative assessment of krill ... catchability and krill distribution patterns. A comparative analysis of trawl catchability for commercial ... midwater trawls and small research trawls, in this case using an Isaacs-Kidd trawl, demonstrated the ... futility of using the latter for trawl census survey biomass assessments due to their highly variable ... case using an Isaacs-Kidd trawl, demonstrated the futility of using the latter for trawl census ... from the trawl mouth area) and the escape coefficient (KB) for the target passing through trawl ... stratified by specific biomass. An assessment of catchability for the Isaacs-Kidd trawl operating between 0 ... Kq for the Isaacs-Kidd to be greater by almost an order of magnitude than the commercial 72/308 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 257–272 : Автор(ы): Kasatkina, S.M.

9. Marine mammals and demersal longline fishery interactions in Crozet and Kerguelen Exclusive Economic Zones: an assessment of depredation levels

   Exclusive Economic Zones: an assessment of depredation levels Abstract / Description:  Interactions between ... together. An extensive photo-identifi cation effort, primarily focussing on killer whales, allowed a total ... small number of individual killer whales were responsible for most of the interactions with the fishery ... sector and marine mammal species. 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 11 12 13 14 15 16 17 ... sperm whales Fishing sector Le ve l o f i nt er ac tio n 90% 80% 70% 60% 50% 40% 30% 20 ... interacting was 8.2 ± 4.7 (n = 552, range 1–20) and 4.1 ± 3.4 (n = 737, range 1–30) individuals respectively ... 3 < 0. 00 1 0. 27 3 0. 00 1 4 2 80 8 44 2 20 9. 1 (1 34 .0 ) 31 6 2 58 1 62 1 ...

   Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 67–82 : Автор(ы): Roche, C., C. Guinet, N. Gasco and G. Duhamel

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

    tonnes for the Heard Plateau and 18 tonnes for Sliell Bank. An assessment based on the results of a ... Paper Title:  An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island ... populations on the Heard Plateau are sufficiently different from those on Shell Bank for them to be managed ... survey conducted at the end of the 1997 fishing season would allow for a catch limit on the Heard Plateau ... an effective method for limiting the size and age of first capture for this species. Avoiding the ... mortality Tolerance (error) for determining fishing mortality in each year First age of maturity Date ... tonnes for Sliell Bank. An assessment based on the results of a survey conducted at the end of the 1997 ... density of each age class by survey are given in Table 4. Estimates of total abundance for each age ...

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

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