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1. Sources of variance in studies of krill population genetics

   :  There has been a long-term interest in the population genetics of Antarctic krill species because of ... their ecological and economic importance. The possibility that there are distinct genetic stocks of ... these species would affect the design of management strategies for their conservation. A recent ... resurgence of interest in identifying distinct stocks of swarming krill species has been driven by the ... – simon.jarman@aad.gov.au Abstract There has been a long-term interest in the population genetics of Antarctic ... krill species because of their ecological and economic importance. The possibility that there are ... distinct genetic stocks of these species would affect the design of management strategies for their ... been driven by the development of genetic technologies that are more sensitive to subtle population ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 107–116 : Autor(es): Jarman, S.N. and S. Nicol

2. Homogeneity of Adélie penguins as krill samplers

   ANOVA design was used to measure the variance component due to differences between individual Adélie ... penguins in the length of krill eaten, using data from Esperanza Bay. The variance component-0.26 was not ... significantly different from zero (F = 0.093; P = 0.54).This finding supports the argument for using individual ... penguins to estimate parameters of the prey population without discriminating by sex, weight or other ... marked after obtaining a sample of their stomach contents as part of the CEMP related work being carried ... SAMPLERS E. Marschoff1 and B. Gonzalez2 Abstract A nested ANOV A design was used to measure the ... variance component due to differences between individual Adelie penguins in the length of kriU eaten ... , using data from Esperanza Bay. The variance component -0.26 was not significantly different from zero ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 253–257 : Autor(es): Marschoff, E. and B. Gonzalez

3. Scientific observations in CCAMLR fisheries – past, present and future

   / Description:  CCAMLR has the primary competency for managing fishing south of the Antarctic Polar Front ... -independent studies are difficult and expensive to conduct. In addition, the size of the Convention Area, its ... remoteness and prevailing inclement weather further complicate matters. Therefore, in addition to the ... standard catch and effort data supplied by vessels, the collection of data by scientifically qualified ... Committee (SC-CAMLR, 1991, paragraph 10.4). To this end the Scientifi c Committee keeps the priorities ... technical coordinators to receive observer reports from vessels at the end of each fi shing trip and email ... measures including delaying the commence- ment of fi shing until the end of the breeding season for most ... , Australia Email – eugene@ccamlr.org Abstract CCAMLR has the primary competency for managing fi shing ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 81–98 : Autor(es): Sabourenkov, E.N. and E. Appleyard

4. Mitigation of seabird captures during hauling in CCAMLR longline fisheries

   as 1994/95 when steps were taken to reduce the attraction of seabirds to vessels during the hauling ... process. Since 2003, increased efforts have been made to improve the design and performance of bird ... exclusion devices (BEDs) placed around the hauling bay. Data collected by scientific observers since 2003 ... seabirds landing adjacent to the line as it is being hauled, and secondly that seabirds are deterred from ... end of the boom (Figure 1). The device acts like a pen- dulum, swinging around on its axis and ... 3). At the seaward end of the boom, a line of purse seine buoys is suspended by a rope and float ... , Australia B. Sullivan BirdLife International Global Seabird Programme Royal Society for the Protection ... the attraction of seabirds to vessels during the hauling process. Since 2003, increased efforts have ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 155–162 : Autor(es): Reid, E., B. Sullivan and J. Clark

5. Age, growth and size at sexual maturity of Macrourus carinatus caught as by-catch in Australian sub-Antarctic trawl fisheries

   McDonald Islands (Division 58.5.2) in 1992 and 1993. The range of estimated ages was 4 to 25 years. There ... growth parameters for both sexes combined were: L ∞ = 690 mm, K = 0.069 and t 0 =-2.4. The size at sexual ... operations in the Heard Island region in 2000. The length at first maturity (L 50) was 418 mm (total length ... ) and the length at first spawning (L m 50) was 511 mm (total length), for both sexes combined. The ... using pure error, F43, 113 = 2.928, P < 0.01. This is especially evident at the upper end of the size ... at the upper end of the size spectrum. Marriott and Horn (2001) also found differences in growth ... corresponding to the upper end of each bin. 0 5 10 15 20 25 30 200 250 300 350 400 450 500 550 600 650 ... 1992 and 1993. The range of estimated ages was 4 to 25 years. There were no signifi cant differences ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 139–151 : Autor(es): van Wijk, E.M., R. Williams and A.J. Constable

6. Sexing of adult Adélie penguins by discriminant analysis of morphometric measurements

   determine the sex of Adélie penguins. A sample of 46 adult birds was taken for measurement from the breeding ... population at Stranger Point (King George/25 de Mayo Is., South Shetland Islands). The sex of each bird had ... been determined earlier by means of observing the birds' breeding behaviour (first incubation ... shift). It was found that the combination of flipper breadth, bill depth and length of the middle toe ... are very useful but during the breeding season they can be applied only after egg-laying. In many ... determine the sex of Adelie penguins. A sample of 46 adult birds was taken for measurement from the ... breeding population at Stranger Point (King George/25 de Mayo Is., South Shetland Islands). The sex of ... each bird had been detennined earlier by means of observing the birds' breeding behaviour (first ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 543–549 : Autor(es): Scolaro, J.A., Z.B. Stanganelli, H. Gallelli and D.F. Vergani

7. Estimates of fish stock biomass around South Georgia in January/February 1985

   estimate stock sizes of the commercially exploited Notothenia rossii, N. guntheri, N. gibberifrons ... around South Georgia. Due to the small data base and the scarcity of comparative information the state of ... N. guntheri and D. eleginoides stocks is difficult to assess. The by-catch species N. gibberifrons ... , Ch. aceratus and Ps. georgianus have been considerably affected by the fishery. Stock sizes of N ... considerable decrease in mean length in the catches at the end of the 1970s has been observed compared to ... already at the end of the 1970s in Polish surveys (SLOSARCZYK et al ., 1984). Since the period of inte ... sizes of the commercially exploited Notothenia rossii, N. guntheri, N. gibberifrons, Dissostichus ... Georgia. Due to the small data base and the scarcity of comparative information the state of N. guntheri ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 1-32 : Autor(es): Kock, K.-H.

8. Differentiation of independent populations of Antarctic krill

   circulation. On the basis of the review, it is suggested that there is probably one composite population of E ... . superba in the Southern Ocean subdivided into several independent sub-populations. The number of these sub ... -populations is expected to correspond with the number of quasi-stationary cyclonic water circulations. At ... ) population of E. superba" (Makarov, 1972). In a later paper (Makarov, Maslennikov, 1975) after the ... and morphophysiological variability of krill and Antarctic water circulation. On the basis of the ... review, it is suggested that there is probably one composite population of E. superba in the Southern ... Ocean subdivided into several independent sub-populations. The number of these sub-populations is ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 275-281 : Autor(es): USSR

9. A post-processing method to remove interference noise from acoustic data collected from Antarctic krill fishing vessels

   from Antarctic krill fishing vessels Abstract / Description:  The use of fishing-vessel-based acoustic ... data has been recognised as an important way to estimate the distribution and relative abundance of ... Antarctic krill (Euphausia superba), yet the quality and even the utility of the data may be seriously ... degraded by interference noise due to the lack of synchronisation of the acoustic instruments found on some ... the time-varied gain (TVG) compensation increased with depth and were high- est at 120 kHz. After ... and Technology Qingdao 266237 People’s Republic of China Email – zhaoxy@ysfri.ac.cn Abstract The ... use of fishing-vessel-based acoustic data has been recognised as an important way to estimate the ... distribution and relative abundance of Antarctic krill (Euphausia superba), yet the quality and even the ...

   Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 17–30 : Autor(es): Wang, X., J. Zhang and X. Zhao

10. Potential impacts of bottom trawling on benthic communities in Prydz Bay, Antarctica

    demersal finfish species in Prydz Bay by Australia in the 1990/91 season. The data collected are used to ... examine a potential impact of bottom trawling on benthic communities in this region. The benthos was ... examined in trawls at 14 of the 22 random stations providing representative samples from different areas in ... the Prydz Bay. All benthos in the codend was sorted into major taxa and wet-weighed. The composition ... Bay in February 1991 showed that on most occasions the biomass of benthos in the codend after a 30 ... Australia in the 1990/91 season. The data collected are used to examine a potential impact of bottom ... trawling on benthic communities in this region. The benthos was examined in trawls at 14 of the 22 random ... stations providing representative samples from different areas in the Prydz Bay. All benthos in the ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 403–410 : Autor(es): Constable, A.J.

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