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1. Investigations of required sampling regimes for environmental parameters

   and pressure. Sampling daily maxima and minima would be sufficient to detect a 2 to 3°C change in ... monthly mean temperature over two years with a significance α of 0.05 and a power P of 0.8. Sampling wind ... speed continuously or as daily maxima and minima would be sufficient to detect a 10 to 20% change in ... minima would be sufficient to detect a 2 to 3°C change in monthly mean temperature over two years with a ... significance a of 0.05 and a power P of 0.8. Sampling wind speed continuously or as daily maxima and minima ... would be sufficient to detect a 10 to 20% change in monthly mean log-transformed wind speed a of 0.05 ... l'identification des changements interannuels dans les parametres de l'environnement a ete examinee a l'aide des ...

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

2. An impact assessment framework for bottom fishing methods in the CAMLR Convention Area

   Area Abstract / Description:  This paper presents a methodological framework to estimate the likely ... illustrates the utility of the standardised approach and provides a methodological template for systematic ... impact assessment in fisheries using bottom impacting methods, to inform mitigation efforts and as a ... necessary component of a full ecological risk assessment. File:  10sharp-et-al.pdf ... Terrace Wellington, New Zealand Abstract This paper presents a methodological framework to estimate the ... fishery. This paper illustrates the utility of the standardised approach and provides a methodological ... mitigation efforts and as a necessary component of a full ecological risk assessment. Résumé Ce document ... sur les organismes benthiques fragiles. Cette méthode a été conçue pour faciliter la normalisation de ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 195–210 : Author(s): Sharp, B.R., S.J. Parker and N. Smith

3. An assessment of CCAMLR measures employed to mitigate seabird mortality in longlining operations for Dissostichus eleginoides around South Georgia

   between the Governments of the United Kingdom and Chile, a UK observer was placed aboard a Chilean ... deck lights were extinguished and no offal was discarded during setting. A streamer line made to CCAMLR ... during hauling using a randomised cluster sampling method, developed to allow representative data to be ... collected when 100% observer coverage could not be achieved: A total of 12 dead seabirds were recorded ... agreement between the Governments of the United Kingdom and Chile, a UK observer was placed aboard a ... intervals along the line, all deck lights were extinguished and no offal was discarded during setting. A ... night-time setting. Data were recorded during hauling using a randomised cluster sampling method ... , developed to allow representative data to be collected when 100% observer coverage could not be achieved: A ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 217–230 : Author(s): Ashford, J.R. and J.P. Croxall

4. Length-based assessment for mackerel icefish (Champsocephalus gunnari) at South Georgia

   the given harvest control rule to set a two-year total allowable catch (TAC). One issue is the ... accurate identification of age cohorts from the survey data. In this paper a length-based approach is ... described that removes the problem of cohort determination. A bootstrap technique (consistent with the ... population numbers-at-length. A comparison of this method and the existing age-based CMIX/GYM methodology ... these numbers forward under the given harvest control rule to set a two-year total allowable catch ... (TAC). One issue is the accurate identification of age cohorts from the survey data. In this paper a ... length-based approach is described that removes the problem of cohort determination. A bootstrap ... estimate of the population numbers-at-length. A comparison of this method and the existing age-based CMIX ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 129–137 : Author(s): Hillary, R.M., C.T.T. Edwards, R.E. Mitchell and D.J. Agnew

5. Species identification and age estimation for the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea

   and Atmospheric Research (NIWA). Two species were found, Macrourus whitsoni and M. holotrachys. A ... the readings, separately by sex. M. whitsoni appears to be a slowgrowing and long-lived species ... , living to at least 50 years. Females grow at a faster rate, and reach a larger size, than males, but both ... exhibited a degree of sexual dimorphism. The age at which 50% of fish are sexually mature was estimated to ... Research (NIWA). Two species were found, Macrourus whitsoni and M. holotrachys. A previously aged sample ... readings, separately by sex. M. whitsoni appears to be a slow- growing and long-lived species, living to ... at least 50 years. Females grow at a faster rate, and reach a larger size, than males, but both ... exhibited a degree of sexual dimorphism. The age at which 50% of fi sh are sexually mature was estimated ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 37–51 : Author(s): Marriott, P., P.L. Horn and P. McMillan

6. Catch per unit effort and proportional recruitment indices from Japanese krill fishery data in Subarea 48.1

   those from scientific data (Siegel et al., 1997) and showed a close relationship to sea-ice indices ... . CPUE (catch/towing volume) in the Livingston Island area showed a decreasing trend during the study ... period. The use of different fishing strategies in response to a demand for higher product quality and a ... those from scientific data (Siegel et al., 1997) and showed a close relationship to sea-ice indices ... . CPUE (catch/towing volume) in the Livingston Island area showed a decreasing trend during the study ... period. The use of different fishing strategies in response to a demand for higher product quality and a ... densite de krill dans la region etudiee. Par contre, la CPUE dans le secteur de l'ile ~ l e ~ h a n t ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 47–63 : Author(s): Kawaguchi, S., T. Ichii and M. Naganobu

7. Performance and geometry of the FP-120 trawl used during UK fish stock assessment surveys around South Georgia, Subarea 48.3

   opening (and, thus, swept area) of a bottom trawl are discussed. In situ measurements of the FP-120 trawl ... around South Georgia are estimated using a new regression equation. The results of this calculation are ... compared to values obtained from a previous equation. The resulting difference in biomass estimates is of ... the order of a 10 to 14% increase, depending upon species. File:  04pilling-parkes.pdf ... C C A M L R Science, Vol. 2 (1995): 51-69 PERFORMANCE ... , swept area) of a bottom trawl are discussed. In situ measurements of the FP-120 trawl used during the ... South Georgia are estimated using a new regression equation. The results of this calculation are ... compared to values obtained from a previous equation. The resulting difference in biomass estimates is of ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 51–69 : Author(s): Pilling, G. and G. Parkes

8. Large-scale peculiarities of phytocenosis species composition in the surface layer in the Antarctic Atlantic and Indian Ocean sectors

   samples (layer between 0 and 1 m) taken with a sampler towed by RV Professor Vize, Corethron criophilus ... Weddell Gyre. In the eastern Weddell Gyre a great change in the composition of phytoplankton species was ... Zone. A seasonal shift in species composition was observed in the same regions (sub-Antarctic waters ... , the Convergence Zone proper, south periphery of the Antarctic Circumpolar Current). A great change in ... ) taken with a sampler towed by RV Professor Vize, Corethron criophilus dominated over vast areas within ... Weddell Gyre a great change in the composition of phytoplankton species was registered. Variability in ... phytoplankton species composition occurred mainly in the Antarctic Convergence Zone. A seasonal shift in ... , south periphery of the Antarctic Circumpolar Current). A great change in phytoplankton composition was ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 201-214 : Author(s): Makarov, R.R. and K.P. Fedorov

9. Assessments of by-catch in trawl fisheries at Heard and McDonald Islands

   biomass estimates from surveys in the region from 1990 to 1993 and a limited amount of biological data ... needed, they enable a preliminary examination of the potential for the fishery to be exceeding long-term ... a high proportion of the catch (greater than 5%) when only small amounts of fish were caught (less ... than 100 kg of by-catch), which was usually during prospecting. By-catch was usually very low as a ... biomass estimates from surveys in the region from 1990 to 1993 and a limited amount of biological data ... these estimates is needed, they enable a preliminary examination of the potential for the fishery to be ... , by-catch species appeared as a high proportion of the catch (greater than 5%) when only small ... -catch was usually very low as a proportion of the total catch when large catches of target species were ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 231–243 : Author(s): Constable, A.J., R. Williams and W.K. de la Mare

10. Utilising data from ecosystem monitoring for managing fisheries: development of statistical summaries of indices arising from the CCAMLR Ecosystem Monitoring Program

    :  A potential method is presented for combining data collected as part of the CCAMLR ecosystem ... monitoring program (CEMP) into a single index for each of predator, prey and environmental parameters. The ... covariance between parameters. The second part reports on a Monte Carlo simulation study that examines the ... that missing values were unlikely to be a problem for time series of parameters that are highly ... Ecological Research 17 Igluna Street, Kenmore 4069 Queensland, Australia A. J. Constable (Corresponding ... A potential method is presented for combining data collected as part of the CCAMLR ecosystem ... monitoring program (CEMP) into a single index for each of predator, prey and environmental parameters. The ... covariance between parameters. The second part reports on a Monte Carlo simulation study that examines the ...

    Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 101–117 : Author(s): de la Mare, W.K. and A.J. Constable

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