Résultats de la recherche
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Acoustic survey design to estimate krill biomass in Subareas 48.1, 48.2 and 48.3
Abstract: The Scientific Committee has requested advice on the feasibility of conducting a ... synoptic survey of krill biomass in Statistical Area 48. Example calculations are presented for estimating ... the amount of survey effort required to achieve a target level of precision using a stratified random ... 1.25 ship-months of survey effort can provide an estimate of krill biomass in Subareas 48.1, 48. 2 and ...
Meeting Document : WG-EMM-95/71 : Auteur(s): Hewitt, R.P., Watters, G.
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Development in maturity stage composition and vertical distribution in an Antarctic krill (Euphausia superba) hotspot
Abstract: Antarctic krill (Euphausia superba) aggregate in various ways depending on a range of ... such as shelf edges and canyons, are considered as hotspots of high importance for regional pelagic ... ecosystems and also for the krill fishing industry. Despite the importance of such krill hotspots, their ... dynamics over time with respect to spatial distribution and demographical composition of krill including ...
Meeting Document : WG-EMM-14/15 : Auteur(s): B.A. Krafft, G. Skaret and T. Knutsen (Norway)
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SCIC-08
/01 PROVISIONAL AGENDA FOR THE 2008 MEETING OF THE CCAMLR STANDING COMMITTEE ON IMPLEMENTATION AND ... COMPLIANCE (SCIC) SCIC-08/02 List of documents SCIC-08/03 Rev. 2 RETROSPECTIVE ANALYSIS OF SCIENTIFIC ... REVISING CONSERVATION MEASURE 21-03 (2007) NOTIFICATION OF INTENT TO PARTICIPATE IN A FISHERY FOR EUPHAUSIA ... SUPERBA Delegation of Japan SCIC-08/05 CATCH DOCUMENTATION SCHEME (CDS) ANNUAL SUMMARY REPORTS 2008 ...
Meeting
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Male krill grow fast and die young
Abstract: The size-differentiated sex ratio (proportion of males: POM) of Antarctic krill was ... southwest Atlantic sector, and from the krill fishery in the Southern Ocean. The percentage of males in size ... classes of adult krill was generally high in krill of 30-35 mm total length, always low in 38-42 mm krill ... for males when compared to females. These results suggest that the numbers of males should decline ...
Meeting Document : WG-EMM-07/P6 : Auteur(s): S. Kawaguchi, L.A. Finley, S. Jarman, S.G. Candy (Australia), R.M. Ross, L.B. Quetin (USA), V. Siegel (Germany), W. Trivelpiece (USA), M. Naganobu (Japan) and S. Nicol (Australia)
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Sounds like more krill
Abstract: Antarctic krill, Euphausia superba, comprise the foundation of the food-web in the ... Southern Ocean and are the target of a large fishery. Recently, the total abundance of krill in the Scotia ... Conservation of Antarctic Marine Living Resources (CCAMLR) to revise the precautionary catch level for krill in ... energy attributed to krill, scaled by the Greene et al. model of krill acoustical reflectivity or target ...
Meeting Document : WG-EMM-04/41 : Auteur(s): D.A. Demer and S.G. Conti (USA)
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Oil, marine debris and fishing gear associated with seabirds at Bird Island, South Georgia 1995/96
Abstract: In the third year of standardised recording of oil, fishing gear and marine debris at ... packaging band; another (uncut) band was found at a nest of a northern giant petrel. Parts of fishing gear ... hooks and lines regurgitated beside nests). Levels of plastic debris in fishing gear associated with ... season. The evidence of discarding of plastic waste and the loss of long-line fishing gear, especially ...
Meeting Document : SC-CAMLR-XV/BG/04 : Auteur(s): Delegation of the United Kingdom
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Using compact video camera technology for rapid deep-sea benthic habitat assessment
Ocean benthos, has a wider application in deep-sea marine research. The use of the system as a drop ... voyage on the shelf-break of East Antarctica, greatly improved the efficiency of selection of sites for ... quantitative sampling. The system is also promoted for estimates of krill biomass, swarm dynamics and ... reproduction, and ground-truthing remote data for habitat mapping. The main advantages of using this system as ...
Meeting Document : WG-EMM-10/24 : Auteur(s): G.P. Ewing, R. Kilpatrick, A.J. Constable and D.C. Welsford (Australia)
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CHANGEMENT CLIMATIQUE ET PROTECTION SPATIALE DE PRECAUTION : PLATES-FORMES GLACIAIRES
, particularly in the Antarctic Peninsula region. One of the most evident signs of climate change has been ice ... shelf collapse; overall, 87% of the Peninsula’s glaciers have retreated in recent decades. Ice shelf ... collapse will lead to new marine habitats and to biological colonisation. Colonisation of these habitats ... potentially removes physiological barriers that have previously led to the isolation of the Antarctic benthos ...
Meeting Document : SC-CAMLR-XXX/13 : Auteur(s): Delegation of the United Kingdom
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Total mercury and methylmercury concentrations in Antarctic toothfish (Dissostichus mawsoni): Health risk assessment
Abstract: In the present study, the concentrations of total mercury in different organs of the ... Division 58.4.1 off the coast of Antarctica were determined. The results revealed total mercury ... concentrations of 0.165 ± 0.095 mg/kg (0.023–0.454 mg/kg) in the Antarctic toothfish. In fish muscle ... , methylmercury accounted for approximately 40% of the total mercury. In a comparison analysis, muscle and liver ...
Meeting Document : WG-FSA-17/P02 : Auteur(s): M. Yoon, M.-R. Jo, K.-T. Son, W.-S. Choi, S. I. Kang, S.-G. Choi, J. H. Lee and T. S. Lee
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Hydroacoustic data obtained around Elephant Island and South Orkney Islands during austral summer 2018
Abstract: This document presents the analysis of acoustic data obtained during the austral summer ... of 2018 as a complement to finfish research in Subareas 48.1 and 48.2 using bottom trawling nets. The ... frequency of 38 kHz and a SIMRAD ES70 fishing echosounder equipped with a 120 kHz frequency transducer. The ... geographical distribution of krill concentrations and the presence of fish shoals are described in an area of ...
Meeting Document : WG-FSA-18/05 : Auteur(s): N.A. Alegría and P.M. Arana