Search results
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Krill population biology during the 1991 Chilean Antarctic krill fishery
. In Area A, a unimodal size frequency distribution was found; the size range was between 30 and 55 mm TL ... specimens between 20 and 39 mm TL. Females comprised 47.1%, males 40% and juveniles 12.9%. Of the females ... . In Area A, a unimodal size frequency distribution was found; the size range was between 30 and 55 mm TL ... specimens between 20 and 39 mm TL. Females comprised 47.1%, males 40% and juveniles 12.9%. Of the females ... ' 59°51,5' 2.40 50 20 09:30 22.02.91 62°08,9' 59°56,4' 2.60 84 24 17:45 22.02.91 62°08,9' 59°54,5 ... 16:10 23.02.91 62°31,8' 61 °09,0' 2.50 45 40 23:20 23.02.91 62°30,5' 61 °21,0' 3.20 52 44 07:05 ... ' 3.00 50 62 06:30 26.02.91 62°40,6' 61°46,0' 3.20 34 63 08:05 26.02.91 62°40,9' 61°46,5' 3.40 50 74 ... ' 60°51,5' 2.50 50 28 14:40 03.03.91 62°27,6' 61 °17,6' 2.70 50 30 18:20 03.03.91 62°26,0' 61 °17,8 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 223–235 : Author(s): Mujica R., A., E. Acuña S. and A. Rivera O.
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Improving estimates of Adélie penguin breeding population size: developing factors to adjust one-off population counts for availability bias
0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 0 10 20 30 40 50 60 Camera 2 16 1 Nov 16 1 Dec 16 1 Jan 16 1 Feb 16 ... 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 0 10 20 30 40 50 Camera 3 A O N es t A va ila bi lit y A dj us tm en t F ac to r 16 ... 1 Nov 16 1 Dec 16 1 Jan 16 1 Feb 16 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 10 20 30 40 50 60 C ou nt ... Date A O n es t a va ila bi lit y ad ju st m en t f ac to r 60 50 40 30 20 10 0 C ou ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 229–241 : Author(s): Southwell, C., J. McKinlay, L. Emmerson, R. Trebilco and K. Newbery
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Trends in relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at Potter Cove, South Shetland Islands, after commercial fishing in the area
to the inshore sub-populations of N. rossii and G. gibberifrons over the last 16 years was most probably caused ... -populations of N. rossii and G. gibberifrons over the last 16 years was most probably caused by the offshore ... to 30 April next year. Variance was normalised using the trans- formations: in the case of numbers ... in Table 1. Split-year (1 May to 30 April) means of total catches per haul are presented in Figure ... = 0.15), together with the observed split-year mean values. Annual marks correspond to 1 January each ... over the last 16 years was most probably caused by the offshore commercial fishery in the area ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 43–52 : Author(s): Barrera-Oro, E.R., E.R. Marschoff and R.J. Casaux
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Fishery Report: Dissostichus eleginoides South Georgia (Subarea 48.3)
0. 20 0. 25 0. 30 0. 35 0. 40 Figure 4: Standardised longline CPUE by fishing season for Subarea ... Table 4: Movement of animals between areas in Subarea 48.3 (all tag and recapture years)*. Release ... and combined maturity ogives can be seen in Figure 5. TOP 48.3 7 0% 10% 20% 30% 40% 50% 60% 70% 80 ... 5: Maturity ogive used for the SGSR stock. Age Maturity ogive 6 0.00 7 0.10 8 0.20 9 0.30 10 0.40 ...
Document : Site Section: Publications
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e-sc-xiii-a8.pdf
... in the breeding population. In addition, population growth rates will take approximately 30 to 50 years ... LONGLINE FISHING AND ITS SIGNIFICANCE TO MARINE ANIMALS FOUND WITHIN THE CONVENTION AREA Incidental ... OF INCIDENTAL MORTALITY ARISING FROM LONGLINE FISHING AND ITS SIGNIFICANCE TO MARINE ANIMALS FOUND WITHIN ... longline fishery at South Georgia in this year (581 vessel-days) gave a total estimated mortality of 2 300 ... breeding population. In addition, population growth rates will take approximately 30 to 50 years to ... birds/1 000 hooks. Extrapolating to the whole longline fishery at South Georgia in this year (581 ... -CAMLR- XII/BG/18) indicated that setting lines before dawn and stopping offal discard 30 minutes before ... ‘traditional’ method2, observations of 20 of the 27 lines set recorded 98 seabird mortalities (all during
application/pdf attached to:WG-IMALF-94Meeting Report : WG-IMALF-94
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Moulting interval and growth of juvenile Antarctic krill fed different concentrations of the diatom Phaenodactylum tricornutum in the laboratory
day –1, which is too slow to support the hypothesised 2-year life-span of this animal in the field ... krill was calculated to be 0.047 mm day–1, which is too slow to support the hypothesised 2-year ... life-span of this animal in the field. Growth conditions of krill in the Southern Ocean are discussed ... to support the hypothesised 2-year life-span of this animal in the field. Growth conditions of krill ... demasiado lenta para mantener la duracion de vlda de dos anos postulada para este animal en la region. Se ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 223-225 : Author(s): Ikeda, T. and P.G. Thomas
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A stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region incorporating multi-year mark-recapture data
Sea Region incorporating multi-year mark-recapture data Abstract / Description: An exploratory ... , and hence a multi-year mark-recapture tagging program was initiated by New Zealand fishing vessels in 2001 ... was developed for Antarctic toothfish in the Ross Sea region that incorporates multi-year release of tagged fish ... and subsequent multi-year data of recapture of tagged fish in conjunction with fishery catch-at-age data ... . _______________________________________________________________ 1 The CCAMLR fishing season starts on 1 December and ends on 30 November in the following year. In the Ross ... selectivity 10 20 30 40 50 Age Age Age Age Age Age 10 ... 20 30 40 50 10 20 30 40 ... 50 10 20 30 40 50 10 20 30 ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 39–62 : Author(s): Mormede, S., A. Dunn and S.M. Hanchet
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Recent population estimates and trends in numbers of albatrosses and giant petrels breeding at the sub-Antarctic Prince Edward Islands
, whereas the population on Prince Edward Island decreased by 20% from 2001 to 2008 (3% per year ... group (Marion and Prince Edward islands) was conducted during December 2008, seven years after ... Edward Island, mirroring a decrease of roughly 2% per year at Marion Island from 1998 to 2005, a decline ... remained stable, whereas the population on Prince Edward Island decreased by 20% from 2001 to 2008 (3% per ...
Meeting Document : WG-EMM-10/P04 : Author(s): P.G. Ryan, M.G.W. Jones, B.M. Dyer, L. Upfold and R.J.M. Crawford
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Revised research plan for toothfish in Divisions 58.4.4 a and 58.4.4b by Shinsei maru No. 3 in 2012/13
5.19-21). CVs of 20 % achievable from the biomass estimates may be achieved within three years ... -21).CVs of 20 % achievable from the biomass estimates may be achieved within three years ... CPUE (67 kg /km) in SSRUs C and D was higher than that (62 kg /km) over the four year’s cruises (two ... year’s cruises for SSRU D), the proposed sample size as existing 70 tonnes for the next 2012/13 survey ...
Meeting Document : WG-FSA-12/58 Rev. 1 : Author(s): Delegation of Japan
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An update of the ageing program for Patagonian toothfish (Dissostichus eleginoides) at the Australian Antarctic Division, including a summary of new data available for the Integrated Stock Assessment for the Heard Island and the McDonald Islands fishery (Division 58.5.2)
increased the information available on older age classes (i.e. fish greater than 20 years) available for use ... substantially increased the information available on older age classes (i.e. fish greater than 20 years ... in interpretation (e.g. both readers may have counted all sub-banding for a particular fish). This year’s stock ... ). This year’s stock assessment includes new age data from the 2012, 2013 and 2014 RSTSs, as well as from ...
Meeting Document : WG-FSA-14/45 : Author(s): B.M. Farmer, E.J. Woodcock and D.C. Welsford (Australia)