Search results

1. Estimation of krill (Euphausia superba) mortality and production rate in the Antarctic Peninsula region

   one summer season was roughly estimated as two times from which follows a maximum total effective ... of water masses and krill biomass within one summer season was roughly estimated as two times from which ... a P/B ratio of 0.88 to 0.94 for different years. The exchange rate of water masses and krill biomass within ... ). Production was estimated and resulted a P/B ratio of 0.88 to 0.94 for different years. The exchange rate ... . The exchange rate of water masses and krill biomass within one summer season was roughly estimated as two ... time krill was thought to live only for two or three years and spawn only once during the life-cycle ... ) was calculated, which corresponds with a survival rate of 38 % from one year to the next. The 1989/90 data ... was defined as the sum of growth increments (weight increase of all individuals during a one year period ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 159–176 : Author(s): Siegel, V.

2. Movement, growth and available abundance to the fishery of Dissostichus eleginoides Smitt, 1898 at Heard Island, derived from tagging experiments

   in the grounds. One fish has been recorded as moving from ground A to Kerguelen and was at the upper end ... direct evidence of toothfish moving such distances and of fish moving from one fishery to another ... in the grounds. One fish has been recorded as moving from ground A to Kerguelen and was at the upper end ... direct evidence of toothfish moving such distances and of fish moving from one fishery to another ... e nu m be rs (m ill io ns ) 1998 1999 2000 2001 Year 0 10 20 30 40 50 Pr ed ic te d nu ... m be rs (m illi on s) 1998 1999 2000 2001 Year 50 40 30 20 10 0 P re di ct ed n um be rs ... – r ec ap tu re lo ca ti on s. 20 00 30 00 40 00 40 00 30 00 30 00 20 00 10 00 50 ... length with about 30 mm protruding from the fi sh. Fish were tagged with one TIRIS tag inserted ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 33–48 : Author(s): Williams, R., G.N. Tuck, A.J. Constable and T. Lamb

3. Factors to consider in developing management measures for krill

   from year to year. The various techniques used to estimate the abundance of animal populations also ... qepTaX onHCbIBaIOTC~ MepbI no ycosepmeHcTBoBaHHIO npo~e~yp ynpaBReHH~ npOMbICROM KpHR~. naeTc~ on ... OTKPbITbIX-3aKpbITbIX paHoHoB H ce30HOB. IIpe~RaraIOTc~ HeKOTopbIe MepbI no ynpaBReHHIO, KOTopbIe Mor RH ... in the past, and this raises the need for new approaches to fishery conservation. In any case, the problems ... Living Resources is given along with an outline of steps for the evolution of management procedures for ... Paper Title:  Factors to consider in developing management measures for krill Abstract ... / Description:  A brief review of the objectives of the Convention for the Conservation of Antarctic Marine ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 175–187 : Author(s): de la Mare, W.K.

4. Observation of seabirds in the Southern Ocean in 1988/89

   :00, 16:00 and 20:00 ship-time, while sailing between Antarctic stations and while en route to ports ... at 8:00; 12:00, 16:00 and 20:00 ship-time, while sailing between Antarctic stations and while en route ... did not exceed one or two. A slight increase of wandering albatrosses to the north was observed ... 'S in the Pacific sector. Most often single birds were observed and it was rare for two to be seen together ... . The giant petrel (Macronectes giganteus) was practically always encountered, with one or two birds sighted ... °W). In the Paciftc sector only small numbers (one or two) of birds were encountered. In autumn the blue petrel ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 521–542 : Author(s): Vagin, A.V. and V.V. Popov

5. Low genetic diversity and temporal stability in the Antarctic toothfish (Dissostichus mawsoni) from near-continental seas of Antarctica

   locations, or between samples collected in consecutive years, were observed. These results, based ... between geographic locations, or between samples collected in consecutive years, were observed ... (almost two years) pelagic stage before fish became benthic, the strong homogenising effect ... and 2012 that indicated genetic similarity between the two years. This study, which included sampling ... or stock units is unknown and is the subject of scientific debate. There may be one genetic stock ... with gene flow via the Antarctic Circumpolar Current or two or more stocks contained within the major ...

   Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 1–9 : Author(s): Mugue, N.S., A.F. Petrov, D.A. Zelenina, I.I. Gordeev and A.A. Sergeev

6. Telemetry monitoring of ecological resources

   will be lost during the animals molt and thus have a useful life of a year or less. Successful attachment ... in the mid-1960s 20 • It used two mechanically rotating antenna arrays. Originally data were recorded ... recorders for this application. These systems are usually used to monitor from one to four animals ... positions. On the next satellite orbit two additional p!J,ssible"" ' ~.' , positions are determined. One ... of telemetry and location monitoring are discussed. Limitations on weight, communication range and ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 495-511 : Author(s): Kuechle, V.B.

7. A simulation study of the method of deriving natural mortality rate using data for Champsocephalus gunnari in Subarea 48.3

   zero if the assumed value is greater than the “true” one. File:  04-Gasyukov-and-Dorovskikh.pdf ... is greater than the “true” one. ... distribution of the values close to the "ideal" one. Two peculiar features of the values were revealed from ... value is greater than the "true" one . . Resume Description d'une methode· permettant de determiner ... gunnari B IIO,llpaHOHe 48.3 UCnOJIb30BaHbI ,llJI5.I nO,llTBep)J{,lleHU5.I ~eJIeC006pa3HOCTU onucaHHoro ... by the Working Group on Fish Stock Assessment (WG-FSA) in previous years. In 1990 the same authors confirmed ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 69–83 : Author(s): Gasyukov, P.S. and R.S. Dorovskikh

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

   . The operating model and all processes within the feedback loop have a nominal time‐step of one year ... from control theory (Cunningham and CCAMLR Science, Vol. 20 (2013): 119–137 119 A potentIAl ... feedbAck ApproAch to ecosystem-bAsed mAnAgement: model predIctIve control of the AntArctIc krIll ... the harvested species in two of these areas. The area‐specific carrying capacity for these two areas ... Control (MPC) to achieve objectives for a harvested species, its predators and the fishery, in a ... also useful for assessing the feasibility of candidate management policies or objectives, and ...

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

9. Distribution characteristics of krill aggregations in the fishing ground off Coronation Island in the 1989/90 season

   should be regarded as preliminary since they were based on data from one season only. Distributional ... type. The results obtained should be regarded as preliminary since they were based on data from one ... larger proportion of spawning females, a predominance of males over females by two to one and also ... yellow 14 -light-green/green liver 15 - dark-green/green liver 65 20 40 60 1:30 10 ... 1 ... - • • ,... • · I '\ • • · I \ • · , ,. · I 4 . , . ~ • • I . • • I.' • ..... ' -'. . . ~ I i r)('-~ " . ..~ t. a. • I ,~ ... • \ I ~,~'P • .. 4 , • . \ \: I ' .... -.- ~:...-., '. \ ~ ...... , 1"'""' .. ~.\ -- . o\~. P . • . • . • 20 30 • • t • , "' ... I' 50 t I· ... ··"· ", • . 0 . 01 ... WG-KRILL-90/20 DISTRIBUTION CHARACTERISTICS OF KRILL ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 49–73 : Author(s): Kasatkina, S.M. and V.I. Latogursky

10. Demographic characteristics of the Adélie penguin population on Béchervaise Island after 12 years of study

    after 12 years of study Abstract / Description:  Demographic parameters (age-specific survival rates ... in eastern Antarctica after 12 years of monitoring under the CCAMLR Ecosystem Monitoring Program (CEMP ... Demographic characteristics of the Adélie penguin population on Béchervaise Island after 12 years ... years of monitoring under the CCAMLR Ecosystem Monitoring Program (CEMP). A life table was constructed ... and produced at least one egg. The overall proportion of breeding females aged 7+ years was determined from ... chicks per female per year (Table 5). On the assumption that the ratio of male to female chicks raised ... since Adélie penguins elsewhere have been shown to live up to 20 years of age (Reid, 1968; Ainley et ... success over 20 years was also calculated. This value was 0.78 chicks per breeding female, which ...

    Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 53–74 : Author(s): Clarke, J., L.M. Emmerson, A. Townsend and K.R. Kerry

Pages