Résultats de la recherche

1. Age determination of Antarctic krill using size, fluorescence, and image analysis techniques

   Abstract:  The ages of 252 mature female krill, collected from Prydz Bay in January 1985, were ... determined using length frequency analysis and the fluorescent age pigment (FAP) technique. Results of both ... methods indicate 6 year classes for adult krill. Correspondence between the ages determined by the two ... techniques is generally within one year. The animals were also analyzed by a computerized image analysis ...

   Meeting Document : SC-CAMLR-VI/BG/48 : Auteur(s): M.S. Berman, A.L. McVey and G. Ettershank (USA)

2. IMPROVING ESTIMATES OF ADÉLIE PENGUIN BREEDING POPULATION SIZE: DEVELOPING FACTORS TO ADJUST ONE-OFF POPULATION COUNTS FOR AVAILABILITY BIAS

   their breeding sites during the breeding period are strongly dependent on the timing within a breeding ... Abstract:  It is widely recognised that the interpretation of counts of penguin populations at ... season at which they are undertaken. While the need to adjust raw penguin count data obtained at varying ... times within a breeding season to minimise bias in estimates of the breeding population has long been ...

   Meeting Document : WG-EMM-09/38 : Auteur(s): C. Southwell, J. McKinlay, L. Emmerson, R. Trebilco and K. Newbery (Australia)

3. Anthropogenic feather soiling, marine debris and fishing gear associated with seabirds at Bird Island, South Georgia, 1998/99

   , marine debris and fishing gear associated with seabirds at breeding sites at South Georgia. In this, the ... Abstract:  This report describes and quantifies the occurrence of anthropogenic feather soiling ... was recorded in association with wandering albatrosses. Quantities of fishing gear remained within the ... levels of previous years for all other species, except giant petrels, which increased by 75% from the ...

   Meeting Document : SC-CAMLR-XVIII/BG/07 : Auteur(s): Delegation of the United Kingdom

4. INCOMPLETE SEARCH EFFORT AS A POTENTIAL SOURCE OF BIAS IN BROAD-SCALE ESTIMATES OF PENGUIN ABUNDANCE DERIVED FROM PUBLISHED COUNT DATA: A CASE STUDY FOR ADÉLIE PENGUINS IN EAST ANTARCTICA

   m2 and within 500 m of the ocean) in the Australian Antarctic Territory (AAT) was mapped using a GIS ... , and the literature reviewed for evidence of the mapped habitat being searched for occupation by ... breeding Adélie penguins. The total area of potential breeding habitat was estimated to be close to 700 km2 ... and 40% of the total potential habitat area. There were marked regional differences in search effort ...

   Meeting Document : WG-EMM-PSW-08/13 : Auteur(s): C. Southwell, D. Smith and A. Bender (Australia)

5. CEMP data inventory/summary and updated spatial analysis of Area 48

   by site and species, and a brief overview on general trends from the past three seasons by Subarea or ... concordance of response to changes in the ecosystem between sites by Subarea, suggesting CEMP data are ... -related analyses, including an update on CEMP metadata available on the CCAMLR GIS and as hosted on the ... NASA Global Change Master Directory (GCMD). CEMP data submissions for the 2017/18 season are detailed ...

   Meeting Document : WG-EMM-18/44 : Auteur(s): CCAMLR Secretariat

6. e-imaf-01 report.pdf

   ... cruises (Isla Camila, Viking Bay, Eldfisk, Isla Graciosa), no offal was discharged during hauls; on the ... studies of the Macquarie Island albatrosses and the survey of Tristan albatrosses, no research programs ... killed during night setting; that no birds were killed during day setting presumably reflects the very ... -catch rates for the last five years (1997–2001), for the best documented subareas. There has been no application/pdf attached to:WG-IMAF-01 ad hoc

   Meeting Report : WG-IMAF-01 ad hoc

7. USING GENERALIZED DISSIMILARITY MODELLING TO ANALYSE AND PREDICT PATTERNS OF BETA DIVERSITY IN REGIONAL BIODIVERSITY ASSESSMENT

   predicting spatial patterns of turnover in community composition (beta diversity) across large regions. The ... nonlinearity commonly encountered in large-scaled ecological data sets: (1) the curvilinear relationship ... ) the variation in the rate of compositional turnover at different positions along environmental ... barriers to dispersal between geographical locations. The approach can be applied to a wide range of ...

   Meeting Document : WS-VME-09/P03 : Auteur(s): Richardson, K., Manion, G., Ferrier, S., Elith, J.

8. Can we satisfactorily estimate variation in krill abundance?

   from data reported to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR ... fishery induced variation. The timescale for such information is discussed in the light of the needs of ... reported to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) does not ... variation. The timescale for such information is discussed in the light of the needs of fishery management ... ) ha sido usada tradicionalmente en las evaluaciones de pesquerias demersales como un estimador de la ... Recursos Vivos Marinos Antarticos (CCAMLR) no provee un indice realista de la abundancia de krill ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 375-376 : Auteur(s): Everson, I.

9. Accumulation of fishing debris, plastic litter and other artefacts on Heard Island and Macquarie Island, Southern Ocean

   summer 1987-88, and 1989 respectively. These surveys were carried out at the same sites of previous ... surveys in 1986-87 at Heard Island, and 1988 at Macquarie Island. The minimum rate of artefact ... . Drift cards released from known locations and collected on the two islands show a similar artefact ... catchment area. Plastic litter was a major component of the debris at both islands. Fisheries related debris ...

   Meeting Document : CCAMLR-VIII/BG/11 : Auteur(s): D.J. Slip and H.R. Burton (Australia)

10. Adélie penguin breeder abundance in CCAMLR Divisions 58.4.1 and 58.4.2

    Abstract:  WG-EMM-STAPP is charged with estimating krill consumption by the major air-breathing ... predators of the Southern Ocean including ice-breeding seals, fur seals, penguins and flying seabirds. The ... priority region for estimation is Area 48, but the krill consumption estimates are also being developed for ... other regions around Antarctica under the work program of WG-EMM-STAPP as a basis for management of ...

    Meeting Document : WG-EMM-13/09 : Auteur(s): C. Southwell, J. McKinlay, L. Emmerson (Australia), A. Takahashi (Japan), C. Barbraud, K. DeLord and H. Weimerskirch (France)

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