Résultats de la recherche

1. Are krill recruitment indices from meso-scale survey representative for larger areas?

   Abstract:  The present contribution uses data from German surveys in the 1980’ies and the US LTER ... programme which continuously collected krill demography data since 1993 during the austral summer season in ... the upstream area of the Elephant Island mesoscale survey. The intention was to compare the ... surveys are representative for a wider region Generally the proportional recruitment indices for one (R1 ...

   Meeting Document : WG-EMM-02/20 : Auteur(s): V. Siegel (Germany), R.M. Ross and L.B. Quetin (USA)

2. Depletion-corrected average catch: a simple formula for estimating sustainable yields in data-poor situations

   Abstract:  The depletion-corrected average catch (DCAC) formula is an extension of the potential ... -lived species. Over an extended period (e.g. a decade or more), the catch is divided into a sustainable ... biomass. The size of the windfall is expressed as being equivalent to a number of years of sustainable ... production, in the form of a “windfall ratio”. The DCAC is calculated as the sum of catches divided by the ...

   Meeting Document : WG-SAM-11/P3 : Auteur(s): A.D. McCall

3. ADULT ANTARCTIC KRILL FEEDING AT ABYSSAL DEPTHS

   the Southern Ocean, and a key species in the Antarctic food web. The Discovery Investigations in the ... early 20th century, coupled with subsequent work with both nets and echosounders, indicated that the ... bulk of the population of postlarval krill is typically confined to the top 150 m of the water column ... . Here, we report for the first time the existence of significant numbers of Antarctic krill feeding ...

   Meeting Document : WG-EMM-08/P01 : Auteur(s): A. Clarke and P.A. Tyler

4. 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 ... space, semivariogram (spatial autocorrelation of krill biomass) and the frequency distribution of krill ... biomass estimate. The wavenumber spectrum resembles a white noise at scales of 2-20 km, although at scales ... smaller than 1 km the spectrum appears to lose its power significantly. The semivariance of biomass does ...

   Meeting Document : SC-CAMLR-VII/BG/25 : Auteur(s): United States of America

5. Joint CEP/SC-CAMLR workshop (2016) on climate change and monitoring

   Abstract:  The Committee on Environmental Protection and SC-CAMLR have endorsed the proposal to ... hold a second Joint CEP/SC-CAMLR Workshop in 2016. The agreed general scope of the workshop is to ... identify the effects of climate change that are considered most likely to impact the conservation of the ... Antarctic, and to identify existing and potential sources of research and monitoring data relevant to the ...

   Meeting Document : WG-EMM-15/18 : Auteur(s): S. Grant (UK) and P. Penhale (USA)

6. WG-EMM-98

   documents Doc Number Title WG-EMM-98/01 Provisional and Annotated Provisional Agenda for the 1998 Meeting of ... the Working Group on Ecosystem Monitoring and Management (WG-EMM) WG-EMM-98/02 List of participants WG ... -EMM-98/03 List of documents WG-EMM-98/05 Revision of the fishery–foraging overlap model Secretariat WG ... Report on fine-scale krill data for the 1996/97 season Secretariat WG-EMM-98/08 Status and trends of ...

   Meeting

7. An exact time of release and recapture stock assessment model applied to Macquarie Island Patagonian toothfish (Dissostichus eleginoides)

   Abstract:  This paper presents an assessment of the harvested population of Patagonian toothfish ... at Macquarie Island based on data from a tag-recapture experiment initiated during the 1995/96 ... , catches, recaptures, natural mortality, and annual net recruitment are used to assess the population of ... one of the main fishing regions of Macquarie Island: Aurora Trough. The pre-tagging abundance is ...

   Meeting Document : WG-FSA-00/43 : Auteur(s): G. Tuck, W. de la Mare, W. Hearn, R. Williams, A. Smith, X. He and A. Constable (Australia)

8. WG-FSA-03

   documents Doc Number Title WG-FSA-03/1 Provisional and Annotated Provisional Agenda for the 2003 Meeting of ... the Working Group on Fish Stock Assessment (WG FSA) WG-FSA-03/10 The Evangelistas Islets, Chile: a new ... ) and K. Lawton (Australia) WG-FSA-03/100 The efficacy of video-based electronic monitoring technology ... for at-sea monitoring of the halibut longline fishery WG-FSA-03/101 Conservation status of seabirds at ...

   Meeting

9. Entanglement of Antarctic fur seals in marine debris at Cape Shirreff and San Telmo Islets, Livingston Island, Antarctica: 1988–1997

   Abstract:  We have compiled the records of Antarctic fur seals (Arctocephalus gazella) entangled ... ', Livingston island, Antarctica, obtained during the summer seasons between 1988 and 1997. Our ... results indicate that 45% of the entanglement material found in a total of 20 individuals (nine subadult ... packing bands, in contrast to the remaining percentage (55%) which corresponded to discarded fishing ...

   Meeting Document : SC-CAMLR-XVI/BG/33 : Auteur(s): Delegation of Chile

10. Revised research plan for toothfish in Divisions 58.4.4 a and 58.4.4b by Shinsei maru No. 3 in 2012/13

    Abstract:  A tagging survey in SSRUs B and C in Division 58.4.4 a & b was conducted in the ... 2011/12 fishing season with the aims of providing the data required for assessments of the population ... structure, size, movement and growth of Dissostichus spp. in the centred area of Division 58.4.4 a & b ... . An approximate stock biomass level of Dissostichus spp. in the survey area was tentatively estimated ...

    Meeting Document : WG-FSA-12/58 Rev. 1 : Auteur(s): Delegation of Japan

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