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1. An assessment of the impact of krill fishery on penguins in the South Shetlands

   krill catch is very low in December while the catch rate for the following three months is roughly ... tonnes/10-20-day period), the present catch rate (≤10  x 10 3 tonnes/1O-day period) is smaller by one or ... an adverse impact on the local krill biomass, and hence on penguins, when catch levels are also taken ... on available information on the fishery, penguins and krill. The krill catch is very low in December ... while the catch rate for the following three months is roughly constant (3 000 to 10 000 tonnes/lO-day ... catch rate (110 X 103 tonnes/lO-day period) is smaller by one or more orders of magnitude within the ... biomass, and hence on penguins, when catch levels are also taken into account. Resume La concurrence ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 107–128 : Автор(ы): Ichii, T., M. Naganobu and T. Ogishima

2. Results of a longline survey on seamounts in the southeast Atlantic and in Subarea 48.6 and Division 58.4.4

   toothfish (Dissostichus eleginoides), with 2 822 individuals caught (83% of total catch). Grenadiers of the ... genus Macrourus were the second most abundant taxon (248 individuals). The total catch by weight was ... with the highest catch (weight) per unit effort was 600 to 800 m, although absolute values varied ... between areas. Catch per unit effort ranged from a maximum value of 359 kg/1 000 hooks on Ob and Lena ... eleginoides), with 2 822 individuals caught (83% of total catch). Grenadiers of the genus Macrourus were the ... second most abundant taxon (248 individuals). The total catch by weight was 21.430 tonnes, of which D ... catch (weight) per unit effort was 600 to 800 m, although absolute values varied between areas. Catch ... eleginoides, by-catch, seamounts, Subarea 48.6, Division 58.4.4, CCAMLR INTRODUCTION A bottom longline ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 99–116 : Автор(ы): López Abellán, L.J. and J.F. González Jiménez

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

   whitsoni) from the Ross Sea Abstract / Description:  Samples of macrourid rattail by-catch from the ... , Wellington New Zealand Abstract Samples of macrourid rattail by-catch from the toothfi sh fi shery in the ... than 1% of the catch. Macrourids, almost exclusively Macrourus whitsoni, comprised a substantial by ... -catch of the fi shery and accounted for about 10% of total landed weight (Hanchet et al., 2002). In ... -catch, the species is clearly of com- mercial importance, and is in need of monitoring and management ...

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

4. Some aspects of the relation between Antarctic krill abundance and CPUE measures in the Japanese krill fishery

   catching “green” krill. These factors result in Catch-per-Day and Catch-per-Haul measures being unlikely to ... index krill abundance. During the high season, Catch-per-Towing-Time seems likely to index only within ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 109–125 : Автор(ы): Butterworth, D.S.

5. Preliminary report on biological observations and exploratory fishing data collected in the South Georgia area during the 1985/86 cruise of MT Carina

   mesh sizes (47 and 60 mm) were used with a bottom trawl of 32 m head rope. Catch data were collected in ... determinations. The total catch with 60 mm mesh size codends was 1305.4 tons with a mean CPUE of 1822 kg/hour. C ... . gunnari comprised the bulk of the catch (62.5%), C. aceratus, P. georgianus and N. gibberifrons, 7.5 to 14 ... % while N. rossii and D. eleginoides were present only as by-catch. In sampling catches two length groups ... mm) were used with a bottom trawl of 32 m headrope. Catch data were collected "in 249 hauls using ... age determinations. The total catch with 60 mm mesh size codends was 1305.4 tons with a mean CPUE of ... 1822 kg/hour. C. gunnari comprised the bulk of the catch (62.5%), C. aceratus, P. georgianus and N ... . gibberifrons, 7.5 to 14% while N. rossii and D. eleginoides were present only as by-catch. In sampling ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 65-97 : Автор(ы): Kreft, K. and J. Szynaka

6. Significant conservation benefits obtained from the use of a new fishing gear in the Chilean Patagonian toothfish fishery

   sperm and killer whales on fish catch rate was assessed during September–December 2006. The results were ... zero in 2006; there was also a reduction in depredation of the catch from a maximum of 5% in 2002 to a ... maximum of 0.36% of the total catch in 2006. The fishers who developed the net sleeve modification called ... to seabird mortality and depredation by sperm and killer whales on fish catch rate was assessed ... depredation of the catch from a maximum of 5% in 2002 to a maximum of 0.36% of the total catch in 2006. The ... catch, or the aggregation of individuals around the ves- sel with no apparent connection to fishing ... depre- dation with ‘almost the entire catch’ lost from some lines. Off Chile, sperm whales have been ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 79–91 : Автор(ы): Moreno, C.A., R. Castro, L.J. Mújica and P. Reyes

7. Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longlines

   from 6 525 longline sets were used to calculate the difference between catch-per-unit-effort (CPUE) of ... approach, which can only be implemented when a sufficient level of by-catch species occurs, provides ... were estimated to range from 27.3% to 29.1% of the total catch (landed and depredated), which is one of ... between catch-per-unit- effort (CPUE) of non-depredated and depredated lines. When killer whales and sperm ... -catch species occurs, provides comparable results and thus strong support for the CPUE method. From ... these two methods, depredation rates were estimated to range from 27.3% to 29.1% of the total catch ... . The amount of depredated fish is part of the total catch and is often disregarded when defining ...

   Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 1–14 : Автор(ы): Gasco, N., P. Tixier, G. Duhamel and C. Guinet

8. An integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands using CASAL

   ) abundance estimates by length bin, commercial catch-at-length data, standardised CPUE series for the trawl ... , iteratively estimated process error for the catch-at-length data and the inclusion versus exclusion of the tag ... commercial catch CPUE data is given, but incorporation of process error for the RSTS data was not considered ... length bin, commercial catch-at-length data, standardised CPUE series for the trawl grounds, and tag ... , iteratively estimated process error for the catch-at-length data and the inclusion versus exclusion of the ... abundance data and commercial catch CPUE data is given, but incorporation of process error for the RSTS ... multiple fisheries catch- at-length proportions, fisheries-independent re- search survey data (RSTS ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 1–34 : Автор(ы): Candy, S.G and A.J. Constable

9. Evaluation of the results of trawl selectivity experiments by Poland, Spain and USSR in 1978/79, 1981/82 and 1986/87

   different characteristics of experimental codends, length frequency distribution of stocks sampled, catch ... rates and catch composition. Details of these data were analyzed and minimum mesh sizes for several ... different characteristics of experimental codends, length frequency distribution of stocks sampled, catch ... rates and catch composition. Details of these data were analyzed and minimum mesh sizes for several ... fish in the stock sampled, catch rates and catch composition. All these factors may influence the ... in Figure 1 is only a rough estimate. The effect of catch rates on fish selection cannot be ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 163–196 : Автор(ы): Slosarczyk, W., E. Balguerias, K. Shust and S. Iglesias

10. Observations of fishing operations on a krill trawler and distributional behaviour of krill off Wilkes Land during the 1985/86 season

    fishing areas. While catch per towing time reflects within-swarm density, catch per day was thought to be ... to 10 km with different distributions occurring in different fishing areas. While catch per towing ... time reflects within-swarm density, catch per day was thought to be a good index to measure abundance ... stock but also to monitor and manage the Antarctic ecosystem as a whole. The usefulness of CPUE (catch ... than half the total Japanese catch is used for direct human consumption. processing constraints differ ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 335-368 : Автор(ы): Ichii, T.

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