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1. Natural mortality rate in the mackerel icefish (Champsocephalus gunnari) around South Georgia

   (Champsocephalus gunnari) from the period prior to known large-scale commercial harvesting is discussed. After ... Paper Title:  Natural mortality rate in the mackerel icefish (Champsocephalus gunnari) around ... South Georgia Abstract / Description:  Information on natural mortality rates of the mackerel icefish ... careful consideration of the data and available methods, several errors are noted in earlier estimates ... prior to known large-scale commercial harvesting is discussed. After careful consideration of the data ... . The age/length key from 1972 was obtained from a period several years after large-scale fishing ... composition data used in this study because the catches were reported to have been made during or after the ... NATURAL MORTALITY RATE IN THE MACKEREL ICEFISH (CHMPSOCEPHALUS GUNNARn AROUND SOUTH GEORGIA I. Everson ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 245–257 : Автор(ы): Everson, I

2. Estimation of natural mortality using catch-at-age and aged mark-recapture data: a multi-cohort simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation.

   of 500 000. Simulations which passed catch-at-age numbers to the estimation algorithm after ... multi-cohort simulation study comparing estimation for a model based on the Baranov equations versus a ... number of recaptures-at-age and model the population numbersat- age by annual difference equations ... obtained by integrating an ordinary differential equation (ODE) for within-year population dynamics. The ... . Simulations which passed catch-at-age numbers to the estimation algorithm after perturbation by observational ... the num- ber of recaptures. Representing end of each year by { }0 01,...,= + + fy t t n , the ... number of fish in the population at the end of fishing year yi in age class a. Appendix 3 gives the ... error on estimation of M, after the simulated data were obtained and before the ,iy aC were passed to ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 1–27 : Автор(ы): Candy, S.G.

3. The Kerguelen database

   and biological data for the Kerguelen EEZ has been operating in France since 1979. At the end of the ... Paper Title:  The Kerguelen database Abstract / Description:  A database for fishery statistics ... 1984/85 fishing season, the data from 25 445 trawls had been entered into the database. A graphical ... representation of these data is presented for several parameters including a distribution of the fishing effort ... been operating in France since 1979. At the end of the 1984/85 fishing season, the data from 25445 ... . At the end of the split-year 1985/86 25445, trawlings have been registered in a database. The LFD ... THE KERGUELEN DATABASE G. Duhamel (France) - 23 ... - Abstract A database for fishery statistics and biological WG-CFSA-86/3 data for the Kerguelen EEZ has ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 23-54 : Автор(ы): Duhamel, G.

4. Changes in the fish biomass around Elephant Island (Subarea 48.1) from 1976 to 1996

   for finfishing from 1989/90 onwards. Results of the first bottom trawl survey carried out after the ... Paper Title:  Changes in the fish biomass around Elephant Island (Subarea 48.1) from 1976 to 1996 ... Abstract / Description:  Finfish stocks in the Antarctic Peninsula region (Subarea 48.1) were exploited ... from 1978/79 to 1988/89, with most of the commercial harvesting taking place in the first two years of ... 1989/90 onwards. Results of the first bottom trawl survey carried out after the closure of the area in ... to be carried out after the closure of the fishery was conducted in November/December 1996 (Table 2 ... (Kock, 1991 - Figure 30). After this, the proportion of larger (older) fish increased slowly from 1985 ... considerable decline in the abundance of the species after the 1979/80 season. During the survey in March ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 165–189 : Автор(ы): Kock, K.-H

5. Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands

   phytoplankton distribution off the northern South Shetland Islands Abstract / Description:  In December/February ... 1990/91 a survey was conducted by RV Kaiyo Maru in the vicinity of the South Shetland Islands and ... Elephant Island. The main objective of the survey was to investigate the mechanisms responsible for the ... concentration of krill and to estimate krill biomass in the area surveyed. Krill biomass estimation was done by ... after (26 March 1991) of the cruise, the echo-integrator was calibrated in the port of Tokyo with the ... sensitivity of the echo-integrator after the cruise. 2.3 Drifting Buoy Studies For the study of flow ... more than 50 days, while the other three failed shortly after deployment. Figure 7 shows tracks of ... and arrived at South Georgia region five and a half months after deployment. The buoy appeared to ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 123–140 : Автор(ы): Ichii, T., H. Ishii and M. Naganobu

6. Seabird by-catch by autoline vessels: do line setters increase the sink rate of integrated weight longlines?

   Paper Title:  Seabird by-catch by autoline vessels: do line setters increase the sink rate of ... m –1 lead core) longlines by some autoline vessels in the Kerguelen and Crozet Islands Patagonian ... . A trial was conducted in the Ross Sea to determine the effectiveness of line setters in increasing ... the sink rates of IW longlines. Time-depth recorders were deployed on lines set with and without a ... between the two magazines in a pair marked either the beginning, or end, of the use of the line setter ... (loose fol- lowing tight) the line became slack after only a few seconds had elapsed. Deployment of ... the anchor at the beginning of lines. The water entry times of each TDR were recorded to the ... by white-chinned petrels on IW longlines occurred 50–70 m astern, at the end of the aerial section ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 107–114 : Автор(ы): Robertson, G., J. Williamson, M. McNeill, S.G. Candy and N. Smith

7. Preliminary analyses of data collected during experimental phases of the 1994/95 and 1995/96 Antarctic crab fishing seasons

   Paper Title:  Preliminary analyses of data collected during experimental phases of the 1994/95 and ... 1995/96 Antarctic crab fishing seasons Abstract / Description:  Data collected on board the FV American ... Champion during Phases 1 and 2 of the experimental crab fishery were analysed using generalised additive ... models and depletion estimators. Results from the generalised additive models show that the density of ... over a wide area. Phase 1 should be undertaken a t the beginning of the first season in which a ... at the beginning of the second season i n which a vessel participates in the crab fishery. In ... about recovery/recmitment rates after depletion events (SC-CAMLR, 1993). The FV American Champion is ... CCAMLR meeting, and initiated Phase 2 of the EHR immediately following the end of this meeting (when ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 141–159 : Автор(ы): Watters, G

8. Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined with various codends

   Paper Title:  Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined ... . It was found that the selectivity properties of twine codends are unsatisfactory in the case of ... Antarctic icefish, bumphead notothenia, and Scotia Sea icefish. This was primarily caused by the heavy net ... some Antarctic fish, which make it difficult for them to escape from the codend. Selectivity properties ... them was worked out during investigations : the codend used had open splitting straps. Only after ... size was 123.6 mm, after the first two and after 30 hours of the codend exploitation its mesh size ... 62.5 mm dry and 61.9 mm wet. A change in the size of mesh after submerging in water was very slight ... rigging was slightly changed. At the beginning, the codend and the cover were encircled by 4 thick ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 1-48 : Автор(ы): Zaucha, J.

9. Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of tag-detection rates

   Paper Title:  Quantifying vessel performance in the CCAMLR tagging program: spatially and ... tagging program is critical to the successful management of a number of toothfish fisheries in Antarctica ... . In particular, tag-detection rates are directly linked to stock size estimated from the tag data in ... an integrated stock assessment. Previous attempts to assess the relative reliability of vessels in ... yields (Mormede et al., 2011a, 2011b; Mormede, 2011). In those analyses, the assumed values of ... mortality of tagged fish and the subse- quent detection rate of recaptured tagged fish are important input ... parameters. For example, under- estimating the tag-detection rate of the fleet will result in an ... overestimate of the stock biomass. The assessment model assumes that all vessels have equal tag-detection ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 73–80 : Автор(ы): Mormede, S. and A. Dunn

10. Catch-at-age analysis applied to new fisheries: the case of Dissostichus eleginoides

    Paper Title:  Catch-at-age analysis applied to new fisheries: the case of Dissostichus eleginoides ... Abstract / Description:  Traditionally, the approach used in the assessment of new fisheries has been based ... on research surveys, making it possible to estimate the standing stock and potential yield of a ... resource by coarse methods. The main aim of such surveys is to monitor fishing operations in order to ... analysis for the Dissostichus eZeginoides fishery south of Chile, where a new fishery is beginning, with ... = numbers at the beginning of the research survey J.1i = exploitation rate F i = fishing mortality r i ... m = terminal age L\ = time between the beginning of the year and the beginning of the research ... • projecting stock size at the beginning of the fishing season, based on stock age composition estimated at ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 3–9 : Автор(ы): Zuleta, A.V. and C.A. Moreno

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