Search results

1. Analysis of albatross and petrel distribution within the CCAMLR Convention Area: results from the Global Procellariiform Tracking Database

   6). The Campbell albatross also has some overlap with the Convention Area, amounting to around one fifth of its ... to inves- tigate the feasibility of combining remote-tracking and at-sea datasets, and this is one ... tend to for- age in areas of continental shelf and shelf break (Weimerskirch et al., 1997; Robertson ... . In comparison, wandering albatrosses have wide-ranging oceanic foraging habits and the for- aging area covered ... subdivisions, based on remote-tracking data contributed to the Global Procellariiform Tracking Database by ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 143–174 : Author(s): BirdLife International (prepared by C. Small and F. Taylor)

2. Distribution, biomass and characteristics of the Euphausia superba fishery around South Georgia (Subarea 48.3)

   , usually one or two weeks. The design used for Survey 2 (a survey plus and separate research ... biomasa mas fiables. 125 1. IN1RODUCflON The South Georgia area holds a special place among those ... concentrations is one of the most important factors determining the level of euphausiid abundance in the South ... -east. Larvae spawned in the island waters are eventually carried away from the region as indeed ... recent findings is discussed in this paper. There has been less focus on data concerning krill biomass ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 123–147 : Author(s): Latogursky, V.I., R.R. Makarov and L.G. Maklygin

3. Spawning locations of mackerel icefish at South Georgia

   densit6 que pr&s des c8tes. La ponte semble egalement se produire dans les ilots Shag. Bien que l'on ne ... . Maturity stage was assessed according to one of three protocols, a coinparison of which is given ... those of Olsen (1955) very closely. These indicate that, in the one season sampled by Olsen and four ... Cumberland East Bay during January 1987 gave a density of larvae of around one per cubic metre (North ... :  Historical information on the distribution of spawning and larval mackerel icefish (Champsocephalus gunnari ... inshore spawning at South Georgia during April within and close to the bays on the north side of the ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 107–118 : Author(s): Everson, I., A.W. North, A. Paul, R. Cooper, N.C. McWilliam and K.-H. Kock

4. Assessment and tag program adaption methods for exploratory fisheries in the CAMLR Convention Area: an example application for Division 58.4.3a

   catch-at-length/age data and tagging data at-length/age. A simple algorithm, based upon the Petersen ... are not available – namely catch-at-length/age data and tagging data at-length/age. A simple algorithm, based ... tagging levels that will produce an expected abundance estimate in the following year of a given precision ... in the following year of a given precision whilst ensuring the sustainable exploitation of the stock as per ... % of K (in this case), not its status relative to 20% of K in the final year of projection. One might then expect ... and Tiao, 1973; Bernardo, 2003) for the carrying capacity, K, is assumed, but (given that only one year ... in the catch limit, at least until more data are col- lected, as this assessment is driven solely by one year ... . of 0.75), for M a value of 0.13 with a 10% CV, and for age-at-maturity a value of 13 years with again ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 101–113 : Author(s): Hillary, R.M

5. Notothenia (P.) guntheri stock status and TAC estimation in the area of Shag Rocks (Subarea 48.3)

   (Subarea 48.3) Abstract / Description:  Data on age composition of catches and fishing efforts for 1979/80 ... commercially taken age groups (2-4 years); (b) Fishing intensity in the predicted period is at the level ... Data on age composition of catches and fishing efforts for 1979/80-1987/88 were used to analyse ... and 160 thousand tonnes when the Gamma method was used (actual values of first and second age groups ... on age composition of catches and fishing efforts for 1979/80-1987/88 were used to analyse N. guntheri ... la composition en ages des prises et sur I'effort de peche pour 1979/80-1987/88 ont ete utilisees ... ,l{apTHblx omll6Kax. ECJIll npllH5ITb, lITO B ce30H 1986/87 rr. lI11CJIeHHOCTb nOn ... nOnOJIHeHH~, BeJIH'-IHHa 3anaca 6Y,lleT H3MeH~TbC~ co 143,8 TbIC. T. B ce30H 1987/88 rr., ,llO 147,1 TbIC ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 53-68 : Author(s): Shust, K. and R. Borodin

6. Results of fish stock assessment survey, South Georgia, December 1987 - January 1988

   1970's. A survey to monitor these stocks was carried out from December 1987 to January 1988 ... of N. squamifrons showed the most drastic decline of the species examined. The population dropped by one to two ... 3THX 3anaCOB npOBO,l{HJIaCb C ,l{eKa6p5I 1989 r. no 5IHBapb 1988 r. 3TO ,l{OnOJIHHJIO pe3YJIbTaTbI npe ... tows were conducted during the survey. One hundred and four occurred along the South Georgia coast ... at about 25 cm and a weak one at about 33 cm. There is also an indication of decreasing size ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 19-52 : Author(s): McKenna, Jr., J.E. and S.B. Saila

7. Distribution and population structure of Dissostichus eleginoides and D. mawsoni on BANZARE Bank (CCAMLR Division 58.4.3b), Indian Ocean.

   of the two species by depth may be related to physical intolerance to cooler temperatures because of the lack ... on deeper slopes (>1 500 m). Separation of the two species by depth may be related to physical ... in some areas, notably Elephant Island (Gon and Heemstra, 1990). One of the reasons for the dramatic ... 0– 18 5 11 0– 18 0 7. 9 (2 .3 ) 6. 0 (2 .3 ) Ta bl e 2: G on ad st ag es ... as on Se x (N o. o f s am pl es ) G on ad st ag e (% ) I II II I IV V D . e le ... ) and the Patagonian Shelf (Laptikhovsky and Brickle, 2005). Age determination from otoliths is necessary to detect ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 145–153 : Author(s): Taki, K., M. Kiyota, T. Ichii and T. Iwami

8. Investigations of required sampling regimes for environmental parameters

   temperature over two years with a significance α of 0.05 and a power P of 0.8. Sampling wind speed ... mean temperature over two years with a significance α of 0.05 and a power P of 0.8. Sampling wind ... continuously or as daily maxima and minima would be sufficient to detect a 10 to 20% change in monthly mean log ... speed continuously or as daily maxima and minima would be sufficient to detect a 10 to 20% change ... day 10-20% High recording for one month daily multiple n-30 10-20% High recording ormax/min ... speed with one sample per day (n-30 per month) may produce data sufficient to identify 10% changes ... significacion ex de 0.05 y una potencia P de 0.9. 1. IN1RODUCflON Monitoring of selected environmental ... parameters is one of the basic components of the CCAMLR Ecosystem Monitoring Program (CEMP). This monitoring ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 561–573 : Author(s): Agnew, D.J.

9. Estimation of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial distribution

   variation across years in one of the selectivity function parameters and similarly for the mortality rate ... of the age-structured model in predicting class/bin by year frequencies is used to obtain a single, across ... systematic or random variation across years in one of the selectivity function parameters and similarly ... Paper Title:  Estimation of effective sample size for catch-at-age and catch-at-length data using ... from simu- lated sampling of the population age structure. For each of the 20 years in a replicate ... , the lack of fit of the age- structured model in predicting class/bin by year frequencies is used to obtain ... . These perturbations consisted of either systematic or random variation across years in one of the selectivity ... vessel and year. Further, CASAL requires the catch-at-age or catch-at-length data to be input ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 115–138 : Author(s): Candy, S.G

10. Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based on scientific observer data

    Bayesian model. The models were composed of multistage cluster units (i.e. year, subarea, vessel, cruise ... estimated by the Markov chain Monte Carlo (MCMC) method hardly show difference among years, subareas ... and vessels. The potent interaction effect between year and subarea suggests large spatio–temporal variability ... units (i.e. year, subarea, vessel, cruise and haul) based on a state–space model, separating ... during one cruise (usually 70–80 days), 5–10% haul coverage level for the Japanese krill fishery may ... an on-board scientific observer on all vessels on at least one cruise each year, and (iii) recognise ... . In this period, the Japanese krill fishing fleet was com- posed of one to four conventional trawl vessels ... ), krill populations consist of multiple cohorts, but it is difficult to estimate age structure by using ...

    Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 31–47 : Author(s): Okuda, T. and M. Kiyota

Pages