Resultados de la búsqueda

1. A revised estimate of short-term yield for the mackerel icefish (Champsocephalus gunnari) off Heard Island based on a trawl survey in 1998

   Abstract:  A random stratified trawl survey of Mackerel icefish in 2 populations (Plateau and ... Shell Bank) in the vicinity of Heard Island enabled a revised estimate of yield for the coming 2 seasons ... in 1999 and 2000. While the abundances of icefish are lower in 1998 than in 1997, the Age 3 and Age 4 ... cohorts are still sufficiently strong to provide for a yield greater than estimates of the long term ...

   Meeting Document : WG-FSA-98/54 : Autor(es): A. Constable and D. Williams (Australia)

2. ALLOCATION OF RESEARCH HAULS IN THE EXPLORATORY FISHERIES FOR DISSOSTICHUS SPP. IN SUBAREAS 48.6 AND 58.4 IN 2008/09

   account for SSRUs where fishing had not been previously reported, and SSRUs where the number of positions ... replacement) of 5 research hauls per stratum (fished and lightly fished/unfished) for each vessel. Where ... each vessel in each SSRU (position separation distances 7-120 nmiles). A total of 1082 starting ... of Insung No.1 (SSRU 5841C) and Shinsei Maru No.3 (SSRU 5842A) where the setting of research lines ...

   Meeting Document : WG-SAM-09/06 : Autor(es): Secretariat

3. PRELIMINARY ANALYSIS OF DISSOSTICHUS MAWSONI BY-CATCH DURING BOTTOM AND KRILL FISHING (STATISTICAL DIVISION 58.4.2)

   Cooperation Seas. Presented frequency of occurrence of immature Dissostichus mawsoni in catches of bottom ... trawls and juvenile Dissostichus mawsoni in catches of mid-water trawls during krill fishing in the same ... regions. Some grounds of these seas are permanent feeding places of Dissostichus mawsoni. Author(s):  L.K ... . Pshenichnov (Ukraine) Title:  PRELIMINARY ANALYSIS OF DISSOSTICHUS MAWSONI BY-CATCH DURING BOTTOM AND KRILL ...

   Meeting Document : WG-FSA-08/23 : Autor(es): L.K. Pshenichnov (Ukraine)

4. Oxygen and carbon stable isotopes in otoliths record spatial isolation of Patagonian toothfish (Dissostichus eleginoides)

   otoliths of oceanic fish can resolve water masses and geographic areas, promising a powerful multivariate ... side of a population boundary, and otolith δ18O and δ13C values were measured to see if they could ... distinguish South American-caught fish from those taken in the Antarctic. Values of δ18O and δ13C predicted ... prior evidence of population isolation. Values of δ18O in the otoliths reflected ambient values as well ...

   Meeting Document : WG-FSA-08/P03 : Autor(es): J.R. Ashford and C.M. Jones

5. Hatching season and growth of Pleuragramma antarcticum larvae near the Antarctic peninsula in austral summer 1993/94

   Abstract:  Hatching season and larval growth of Pleuragramma antacticum in the water off Antarctic ... Peninsula were determined by the examination of growth increments in otoliths. The samples were collected by ... (54 inds. out of 77 fish larvae) in ichthyoplankton samples, and occurred mainly in cold water of the ... Weddell Sea. Body length of P. antacticum ranged from 12.0 to 67.3 mm. Otolith radii (R) ranged from 150 ...

   Meeting Document : WG-EMM-96/65 : Autor(es): Cha, S.S., Lee, T.W., Kim, S.

6. The foraging range of Adelie penguins at Bechervaise Island, Mac. Robertson Land, Antarctica, and its overlap with the krill fishery

   Abstract:  The foraging ranges of six female and four male Adélie penguins breeding at Bechervaise ... ) approximately 110 km distant at its closest point. Birds feeding chicks also made journeys of 1-2 days ranging ... up to 12 km after 17 January when the sea became ice free to the coast. Concentrations of krill ... Euphausia superba which have in the past been the subject of a fishery occur along the shelf break zone ...

   Meeting Document : WG-CEMP-92/36 : Autor(es): K.R. Kerry, J.R. Clarke and G.D. Else (Australia)

7. Some considerations on the usefulness of CPUE data from Japanese krill fishery in the Antarctic

   Abstract:  The characteristics of Japanese krill fishery were reviewed in several examples based ... on the information recorded on log book. While searching behaviour seems to be the basis of this ... fishery, CPUE in terms of catch per minute of towing was thought to be an useful index of patch density ... and possibly of local abundance. Author(s):  Y. Shimadzu and T. Ichii (Japan) Title:  Some ...

   Meeting Document : WS-KCPUE-85/04 : Autor(es): Y. Shimadzu and T. Ichii (Japan)

8. Among-year variation in growth of Antarctic krill Euphausia superba based on length-frequency data

   Abstract:  Understanding the temporal variability in vital rates (e.g. growth and survivorship) of ... to mechanistic drivers and their population consequences. For somatic growth, empirical estimates of ... estimating growth from observed length-frequency samples by combining kernel density estimates of the length ... Southern Ocean over a span of 19 yr to document among-year variation in krill growth during the austral ...

   Meeting Document : WG-EMM-13/P01 : Autor(es): A.O. Shelton, D. Kinzey, C. Reiss, S. Munch, G. Watters and M. Mangel (USA)

9. Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.3a

   Abstract:  The current season (2014/15) is the final one of the first three-season research which ... by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ... estimator was largely different from that using the CPUE method. Predicted numbers of tag recaptures from ... during 2013-14 seasons. Understanding of the resource structure through clarification of their life ...

   Meeting Document : WG-SAM-15/03 : Autor(es): Delegation of Japan

10. Distribution, density and relative abundance of Antarctic krill estimated by maximum likelihood geostatistics on acoustic data collected during commercial fishing operations

    regular scientific monitoring of the resource. Recently, however, the Commission for the Conservation of ... Marine Living Resources (CCAMLR) has initialised a process to make use of acoustic data from commercial ... fisheries to increase the amount of relevant information available for making management decisions. We here ... provide an example where 34 days of acoustic data, collected during commercial krill fishing operations on ...

    Meeting Document : WG-EMM-16/P12 : Autor(es): E.J. Niklitschek and G. Skaret

Páginas