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Review of identity and biology of species of the family Macrouridae, from the CCAMLR fishery in the Ross Sea, Antarctica
males is 12 years and 46 cm TL, for females it was 14 years and 50 cm TL. Author(s): P.M. Marriott and ... ; 88.2 in 2002 were identified by observers and returned to New Zealand for subsequent confirmation of ... their identity by NIWA researchers. Two species were found, Macrourus whitsoni and M. holotrachys. A ... previously aged sample from 1999 was confirmed as being M. whitsoni based on otolith comparisons and the ...
Meeting Document : WG-FSA-02/32 : Автор(ы): P.M. Marriott and P. McMillan (New Zealand)
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Dietary segregation of krill-eating South Georgia seabirds
success and information on diet in 5-10 other years suggest that in 1986 seabird diet and reproductive ... Abstract: The diets of six of the main seabird species (two petrels, two albatrosses, two ... period in 1986. For five species, Antarctic krill Euphausia superba was the main food (39-98% by mass ... ranges. selectivity by predators, or differences in escape responses of krill. For the krill-eating ...
Meeting Document : WG-EMM-97/15 : Автор(ы): Prince, P.A., Croxall, J.P., Reid, K.
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Сотрудничество с другими организациями: Соглашения с международными организациями
Commission decision to renew these two Arrangements (CCSBT, SPRFMO) for a further 3 years. The Secretariat ... Abstract: CCAMLR has Arrangements with five other organisations. Two Arrangements (Commission for ... for those organisations that also catch toothfish to include cooperation with CCAMLR’s toothfish ... tagging program, and to cooperation with the CCAMLR Catch Documentation Scheme for Dissostichus spp. (CDS ...
Meeting Document : CCAMLR-XXXVII/10 : Автор(ы): CCAMLR Secretariat
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RECRUITMENT AND BODY SIZE IN RELATION TO TEMPERATURE IN JUVENILE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) AT SOUTH GEORGIA
forecasts of years of good or poor recruitment for the toothfish fishery at South Georgia Author(s): M ... , South Atlantic. Data from 13 demersal trawl surveys conducted over a 20-year period were analysed ... . Abundance of the 1+ juvenile fish cohort (13 to 15 month old dependent on survey date) was found to vary ... attained after 13-15 months was higher in years of high juvenile abundance and was significantly inversely ...
Meeting Document : WG-FSA-08/P02 : Автор(ы): M. Belchier and M.A. Collins
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Diet and prey consumption of Antarctic petrels Thalassoica antarctica at Svarthamaren, Dronning Maud Land and at sea outside the colony
Abstract: The diet of the Antarctic petrel Thalassoica antarctica was studied during two years at ... Svarthamaren, an inland colony situated in Dronning Maud Land, Antarctica and in the pack-ice outside ... found in other diet studies. Estimates of food consumption for birds breeding at Svarthamaren (c ...
Meeting Document : WG-EMM-97/58 : Автор(ы): Røv, N., Lorentsen, S., Klages, N.
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A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia
on density data derived from acoustic surveys and on length-frequency data obtained from either ... target or station net hauls is described. This composite index is compared with an index where density ... successful recruitment year due to krill spawned in 1994/95. File: 06watkins.pdf ... recruitment index is dependent on the separation of krill into year classes. This is not an easy task and an ... factors provide an extra level of complication when deciding on the appropriate year classes. The ... Programme has carried out systematic net hauls at up to eight stations within each of two boxes on the ... per haul have been measured the numbers were left as raw numbers. Here I consider two methods for ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Автор(ы): Watkins, J.L
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Preliminary tag-recapture based population assessment of Antarctic toothfish in Subarea 48.4
tagging returns to be 982 tonnes in 2018. Applying the CCAMLR agreed precautionary assumption of average ... biomass across the time series and harvest rate of γ = 0.038, implies a 2018/19 yield of 37 tonnes ... the 48.4 Antarctic toothfish as a separate stock. Based on the biological characteristics of the ... 48.2, 48.6 and possibly 48.5. The current method of assessment, based on tag returns, consequently, is ...
Meeting Document : WG-FSA-18/26 : Автор(ы): T. Earl and A. Riley
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Acoustic data analysis and models of krill spatial distribution
Abstract: Acoustic data obtained on the 4-5 January 1987 aboard the R/V Professor Siedlecki were ... used in three descriptors of krill spatial aggregation: power spectra for krill biomass fluctuations in ... biomass estimate. The wavenumber spectrum resembles a white noise at scales of 2-20 km, although at scales ... not vary significantly over most distances between points except for the distances smaller than 1 km ...
Meeting Document : SC-CAMLR-VII/BG/25 : Автор(ы): United States of America
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Linking population trends of Antarctic shag (Phalacrocorax bransfieldensis) and fish at Nelson Island, South Shetland Islands (Antarctica)
in the number of breeding pairs of Antarctic shag Phalacrocorax bransfieldensis in two colonies on ... the 1990s up to the mid 2000s over an overall monitoring period of over two decades. It addresses ... of this area, where an intensive commercial fishery for shag prey once operated. The analysis also ... includes comparable information on diet (by examination of regurgitated pellets), foraging patterns, and ...
Meeting Document : WG-EMM-16/P09 : Автор(ы): R. Casaux and E. Barrera-Oro
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Homogeneity of body length composition of Antarctic krill within the commercial zone
=163 x=51.7 20 30 40 50 60 Length (mm) Figure 2: Comparisons of kriU length compositions for ... x=47.2 20 Data set 2* 30 40 50 Length (mm) 60 15 10 5 n=182 x=48.7 n=187 x ... " 10 CD x=38.9 x=37.5 l0- w.. 5 0 20 30 4D 50 60 Data set 53* Data set 49** ..-.. 15 ~ n ... .. 10 x=42.0 x=44.5 5 0 20 30 40 50 60 Length (mm) Leng t h (mm) Figure 2 (continued) 24 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 17–28 : Автор(ы): Ichii, T.
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