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1. A stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region incorporating multi-year mark-recapture data

   and subsequent multi-year data of recapture of tagged fish in conjunction with fishery catch-at-age data ... of tagged fish and subsequent multi-year data of recapture of tagged fish in conjunction with fishery catch ... (Hanchet et al., 2013). Initially, catch limits were derived by comparing longline catch rates between ... , as well as the catch limit in each year, is given in Table 2. Annual catch data were used as a direct ... (tonnes) by fishery for 1997–2013. Season Fishery Total Catch limit1Shelf Slope North 1997 ... 5 862 32 995 1 Catch limit for the RSR and ASR combined for Dissostichus spp. for the years 1997 ...

   Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 39–62 : Author(s): Mormede, S., A. Dunn and S.M. Hanchet

2. Analysis of haul data from the South Georgia krill fishery

   focused, operating in a limited area along the shelf edge on the northern coast of the island. Each day ... ), with hauls producing higher catch rates during the middle of the day. Individual hauls were examined ... was geographically focused, operating in a limited area along the shelf edge on the northern coast of the island ... ), with hauls producing higher catch rates during the middle of the day. Individual hauls were examined ... emphasise that the krill fishery at South Georgia was geographically focused, operating in a limited area ... by each vessel (average 7.9 in 1993,9.9 in 1995, and 7.0 in 1996), with hauls producing higher catch ... to estimating sustainable In manag ing f i sher ies for Antarc t ic krill , catch levels as well ... ; Miller and catch rates. We also make inferences about the Hampton, 1989; Murphy et al., 1991; Trathan et ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 9–30 : Author(s): Trathan, P.N., I. Everson, E.J. Murphy and G.B. Parkes

3. Can toothfish catches be used to predict the presence of vulnerable benthic invertebrate taxa?

   Paper Title:  Can toothfish catches be used to predict the presence of vulnerable benthic ... to the fishing footprint. If high target species catch rates are associated with habitats where VMEs are found ... locations. This study used the catch of the six most common vulnerable invertebrate taxa reported ... by observers on New Zealand vessels during the 2009/10 Ross Sea longline fisheries to correlate toothfish catch ... of the fishery, but at similar depths. The limited observations available suggest that individual taxa have ... . CCAMLR Science, Vol. 18 (2011): 87–96 87 CAN TOOTHFISH CATCHeS be uSed TO PRedICT THe PReSeNCe ... to the fishing footprint. If high target species catch rates are associated with habitats where VMEs are found ... locations. This study used the catch of the six most common vulnerable invertebrate taxa reported ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 87–96 : Author(s): Parker, S.J. and M.H. Smith

4. A proposed management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity

   , whereas catch-at-length information indicates that past catches have had relatively little impact ... of the catches made. An MP with control parameter values specified is proposed for implementation based ... on the results of the trials. Given the importance of an adequate catch rate for the economic viability ... a catch rate increase, whatever the current resource status. MP performance is reasonably robust across ... to major difficulties in making scientific recommendations for appro- priate catch limits ... to be so. Thus, the potential of alternative algorithms for setting catch limits is to be examined using ... within a candidate generic MP to compute projected future catch limits for the candidate under ... Islands region is unclear because CPUE data suggest considerable depletion, whereas catch-at-length ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 33–69 : Author(s): Brandão, A. and D.S. Butterworth

5. Analysis of trends in Japanese krill fishery CPUE data, and its possible use as a krill abundance index

   as a krill abundance index Abstract / Description:  Haul-by-haul logbook catch and effort data from ... of definitions of effort and catch-per-unit-effort (CPUE), variables were modelled using linear mixed models ... ‘catch per searching time’ and ‘catch per day’ within their lower ranges, suggesting these may have some ... Haul-by-haul logbook catch and effort data from the Japanese krill fishery for the 1980/81 to 2003 ... Shizuoka, 424-8633 Japan Abstract Haul-by-haul logbook catch and effort data from the Japanese krill fi ... and catch-per-unit-effort (CPUE), variables were modelled using linear mixed models in order to obtain time ... shing in Subareas 48.1 and 48.2 was not clear. A linear correlation was observed between ‘catch per ... searching time’ and ‘catch per day’ within their lower ranges, suggesting these may have some value ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 1–28 : Author(s): Kawaguchi, S., S. Candy, S. Nicol, K. Taki and M. Naganobu

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

   reached only a factor of 1:1.6. Krill mortality was calculated by linearized catch curve analysis ... was calculated by linearized catch curve analysis and resulted a rate of Z = 0.88 (1989/90) and Z = 0.96 (1987/88 ... was calculated by linearized catch curve analysis and resulted a rate of Z = 0.88 (1989/90) and Z = 0.96 (1987 ... of zero catches beyond the distribution range - but inside the survey area were included ... a real impression on the variability of biomass density within the distribution limits of the species ... period in time. Working with these 'pseudo-cohort' data we can apply the linearized catch curve equation ...

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

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

   6 525 longline sets were used to calculate the difference between catch-per-unit-effort (CPUE) of non ... only be implemented when a sufficient level of by-catch species occurs, provides comparable results ... to range from 27.3% to 29.1% of the total catch (landed and depredated), which is one of the highest among ... between catch-per-unit-effort (CPUE) of non-depredated and depredated lines. When killer whales and sperm ... . In the first method, fishing data from 6 525 longline sets were used to calculate the difference between catch ... Patagonian toothfish. This approach, which can only be implemented when a sufficient level of by-catch ... methods, depredation rates were estimated to range from 27.3% to 29.1% of the total catch (landed ... of depredated fish is part of the total catch and is often disregarded when defining quotas (Roche et al ...

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

8. CPUE indices used in Soviet krill fishery statistics from 1977 to 1992 and their possible utility for evaluation of relative changes in krill biomass

   and their possible utility for evaluation of relative changes in krill biomass Abstract / Description:  Key catch-per ... and primary data for their calculations, were examined. The main CPUE indices were catch per vessel-days ... fished (CVDF), catch per extended vessel-days fished (CEVDF) and catch per hour of trawling (CHT ... was higher. The correlation between catch and tow time was considered to be an indicator of homogeneity ... it@atlant.baltnet.ru Abstract Key catch-per-unit-effort (CPUE) indices used in Soviet krill fi shery statistics ... CPUE indices were catch per vessel-days fi shed (CVDF), catch per extended vessel-days fi shed (CEVDF ... ) and catch per hour of trawling (CHT). A relatively high correlation between mean monthly values of CVDF ... and, accordingly, the number of hauls per day was higher. The correlation between catch and tow time ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 165–177 : Author(s): Litvinov, F.F., A.Z. Sundakov and V.I. Arkhipov

9. 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 ... Samples of macrourid rattail by-catch from the toothfish fishery in the Ross Sea dependency in 2002 ... , Wellington New Zealand Abstract Samples of macrourid rattail by-catch from the toothfi sh fi shery ... - ings, and the Patagonian toothfi sh (D. eleginoides) made up less than 1% of the catch. Macrourids ... , almost exclusively Macrourus whitsoni, comprised a substantial by-catch of the fi shery and accounted ... of M. whitsoni were reported as having been caught. Although a by-catch, the species is clearly of com- mercial ...

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

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

    and 60 mm) were used with a bottom trawl of 32 m head rope. Catch data were collected in 249 hauls using ... 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 ... for 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 : Author(s): Kreft, K. and J. Szynaka

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