Résultats de la recherche

1. Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric parameter?

   sex of individuals, it is only able to correctly sex a certain proportion of birds. Two overlapping ... functions are able to correctly determine the sex of birds with greater than 80% success the difference ... knowledge about the sex ratio between years makes combining the data a very doubtful procedure and use of a ... discriminant function to determine sex is recommended as being most practically robust. Author(s):  D.J. Agnew ...

   Meeting Document : WG-CEMP-92/11 : Auteur(s): D.J. Agnew (Secretariat)

2. Cruise Report – Research Project: Demersal finfish distribution, abundance, and their biological characteristics in Statistical Subareas 48.1 (northern area) and 48.2

   coordinates as those on previous R/V ' Polarstern ' surveys around Elephant Island (Kock & Jones ... the R/V ' Yuzhmorgeologiya ' (Jones & Kock, 2009). The cruise took place 6-27 January ... , 2018, primarily using a Hardbottom Snapper trawl (NET Systems, Inc.), previously used by the US AMLR ... marks registered in the echo sounders. One of the mid-water hauls identified a shoal of icefish (33.6 t ...

   Meeting Document : WG-SAM-18/25 : Auteur(s): Delegation of Chile

3. Catch and effort data for the longline fishery in Subarea 48.3 – comparison of data reported to CCAMLR and data acquired by the UK between 1994 and 1996

   around South Georgia were compared with data reported to CCAMLR and held in CCAMLR's longline ... to be missing from the CCAMLR database. One instance was identified of multiple hauls being submitted ... the two datasets, with many of the records for individual fields being identical. The number of ... in reporting bycatch and incidental mortality of birds. Author(s):  Parkes, G.B., Pearce, J., Agnew ...

   Meeting Document : WG-FSA-97/37 : Auteur(s): Parkes, G.B., Pearce, J., Agnew, D.J.

4. Interannual variability in Antarctic krill (Euphausia superba) density at South Georgia, Southern Ocean: 1997 – 2013

   . Hence, only the densest krill swarms detected in any one year drove the mean krill density estimates for ... the WCB in that year. WCB krill density (µ, mean density for the area) showed several years (1997-8 ... , 2001-2003, 2005-2007) of high values (µ > 30 g m-2) interspersed with years (1999-2000, 2004, 2009 ... estimates for a 17 year time series of acoustic surveys of the Western Core Box at South Georgia.  Krill ...

   Meeting Document : WG-EMM-14/P04 : Auteur(s): S. Fielding, J. Watkins, P. Trathan et al.

5. ABUNDANCE AND BIOLOGICAL INFORMATION ON TOOTHFISH IN DIVISION 58.4.4a & b BY SHINSEI MARU NO. 3 IN 2007/08 SEASON

   , Shinsei Maru No. 3, from July 23 to September 27, 2008. The survey was undertaken in two Phases (Phase 1 ... % in numerical number and 90-96 % in weight to the total samples in SSRUs. Mean CPUE of toothfish in ... . Using a grid-based (10-minute latitude x 20-minute longitude) standard stratification method, mean CPUE ... this survey suggest the recovery of the stock since 2000/01. Author(s):  K. Taki, T. Ichii, M. Kiyota ...

   Meeting Document : WG-SAM-09/10 : Auteur(s): K. Taki, T. Ichii, M. Kiyota and S. Kawahara (Japan)

6. Temporal changes in sighting density indices of baleen whales in CCAMLR Subareas 48.1 and 48.2 based on three circumpolar sighting surveys

   . CPI, CPII and CPIII data in Subarea 48.1 corresponded to years 1982/83, 1989/90 and 1993/94+1999/00 ... are consistent with abundance estimates trend in humpback and Antarctic minke whales. Two issues are ... , respectively while that in Subarea 48.2 those corresponded to years 1981/82, 1986/87 and 1997/98, respectively ... whales in the krill fishing/top predators feeding areas, and the impact on land-based predators. Author(s ...

   Meeting Document : WG-EMM-16/26 : Auteur(s): L.A. Pastene and T. Hakamada

7. Criteria for aging the otoliths of Dissostichus eleginoides from South Georgia (Subarea 48.3) and an analysis of aging precision

   readings by one observer and readings by two observers showed considerable inconsistency in aging both ... criteria to test. Two sets of criteria ate presented for aging the otoliths of Dissostichus eleginoides ... , one (C1) developed from previous work on the same species; the other (C2) adapted from generalized ... criteria used to age high latitude fish from the north-west Pacific Ocean. Growth structures were found to ...

   Meeting Document : WG-FSA-98/52 : Auteur(s): J. Ashford (United Kingdom) and S. Wischniowski (Canada)

8. Skate tagging in the Heard Island and McDonald Island (Division 58.5.2) toothfish fishery up to 2013

   liberty of nearly eight years for one B. irrasa. Range of movement in depth was between-266 m and 280 m ... recapture rate of less than one percent. The average distance between release and recapture for each of the ... from release to recapture, with B. irrasa tending to move in depth more than the other two species ... . Growth increments for tagged and recaptured B. eatonii indicated growth of ~20mm/year for both sexes ...

   Meeting Document : WG-FSA-13/22 : Auteur(s): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)

9. Phytoplankton standing stocks in relation to krill in Antarctic waters

   lies between latitude 56° to 61° 17's and longitude 30° to 40°E is characterized by cold surface ... , consisting of 32 diatoms and one dinoflagellete. Chaetoceros and Nitzschia spp. dominated the phytoplankton ... abundance could be possible sites for locating krill fisheries in the southern oceans. Author(s):  X.N ...

   Meeting Document : WG-EMM-98/34 : Auteur(s): X.N. Verlecar, R. Vijayakumar, F. Saldhana and L. Martins (India)

10. TOWARDS THE BALANCED STOCK ASSESSMENT OF ANTARCTIC TOOTHFISH IN THE ROSS SEA

    Abstract:  Last two years two different approaches were used for stock assessment of Antarctic ... toothfish in the Ross Sea. One of them, the CASAL model, (Dunn & Hanchet, 2007; Bull et al., 2007) is ... available sources of information incorporated into the model. The second one, the TISVPA model (Vasilyev ... caught in 2007, driving the stock estimate down. Author(s):  D. Vasilyev and K. Shust (Russia) Title ...

    Meeting Document : WG-SAM-08/08 : Auteur(s): D. Vasilyev and K. Shust (Russia)

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