Résultats de la recherche
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Preliminary results of the E.L. Holmberg 1994 cruise to Subareas 48.3 and 48.2
Abstract: A total of 63 hauls and 10 oceanographical legs were obtained. Of these, 44 hauls taken ... in Subarea 48.3 on a random stratified des n are used to estimate the standing stocks of the main ... surface water temperature of about-0.5 to-1.0 in a period of approximately 20 days was detected around ... South Georgia Islands. In the Scotia Sea the boundary of the Weddell-Scotia confluence was found within ...
Meeting Document : WG-FSA-94/29 : Auteur(s): E.R. Marschoff, B. Prenski, B. Gonzalez, C. Remaggi and C. Balestrini (Argentina)
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Recent British Antarctic Survey publications relevant to the agenda of WG-EMM 2013
related to feedback management: “review of spatial and temporal structure in the ecosystem in which the ... current Area 48 fishery operates” and “development of agreed decision-making mechanisms for the candidate ... have been studying the structure and operation of this ecosystem for several decades. Some of this work ... has focused on the management and monitoring of this ecosystem. These programmes have therefore ...
Meeting Document : WG-EMM-13/21 : Auteur(s): Delegation of the United Kingdom
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A summary of scientific observer deployments and data collection in the krill fishery during the 2011, 2012 and 2013 seasons
Abstract: The level of observer coverage in the krill fishery and the scientific sampling ... undertaken are summarised. During 2012 all 12 of the vessels that participated in the krill fishery carried ... observers for some or all of their fishing operations. From a total of 860 vessel days of fishing in 2012 ... observations of krill length measurements were collected on 375 ‘days’ and fish bycatch was measured on 554 ...
Meeting Document : WG-EMM-13/38 : Auteur(s): CCAMLR Secretariat
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By-catch of morid cods (Gadiformes: Moridae) in the CCAMLR area and adjacent areas during commercial fishing and research surveys
distributions, size composition and abundance of morids in the CCAMLR and adjacent areas. The main goal is to ... detection of areas and depths of their aggregations, by reveal of presence/absence of spatial and vertical ... migrations and by study of their seasonal and multi-annual variations. Results will be used for preparation ... of conservation measures allowing for preservation these vulnerable by-catch species from irreparable ...
Meeting Document : WG-FSA-16/12 : Auteur(s): A. Orlov and I. Gordeev
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Summary of monitoring and research effort and preliminary results from the 2019 Scotia Sea krill monitoring survey with FV Cabo de Hornos
Association of Responsible Harvesting Companies (ARK) and manned with personnel from the Institute of Marine ... Research to carry out a significant part of the 2019 Scotia Sea large scale krill monitoring. All sections ... of the large scale survey area were visited, and about 80 % of the coverage planned for the vessel ... . In addition, deployment of four acoustic moorings and 9 replicate measurements on board of krill ...
Meeting Document : WG-EMM-2019/46 : Auteur(s): G. Skaret, M. Martinussen, G. McCallum, R. Pedersen, J. Rønning, A.L. Donoso, O.A. Bergstad and B.A. Krafft
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ESTIMATION OF MANAGEMENT REFERENCE POINTS CONSISTENT WITH THE CATCH TRIGGER LEVEL FOR THE ANTARCTIC KRILL FISHERY IN AREA 48
of 620,000 tonnes. Projections were run with various increased levels of recruitment variability to ... analyse the sensitivity of the estimates of the reference points to recruitment variability. The estimates ... of F and SSB reference points for the krill stock in Area 48 consistent with the catch trigger level ... comparison, the F and SSB reference points for the precautionary catch limit of 5.61 million tonnes are 0.186 ...
Meeting Document : WG-EMM-11/17 : Auteur(s): T. Peatman, J. Moir Clark, D.J. Agnew (UK)
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Further progress on modelling the krill–predator dynamics of the Antarctic ecosystem
Abstract: This paper addresses work conducted on the Mori-Butterworth multi-species model of the ... Antarctic ecosystem subsequent to the Ulsan meeting of the IWC Scientific Committee. Points raised about the ... unable to fully utilise the primary production available. The precision of parameters estimated when ... of the model to available abundance estimates for crabeater seals. A list of topics for possible ...
Meeting Document : WG-EMM-06/19 : Auteur(s): M. Mori (Japan) and D.S. Butterworth (South Africa)
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CPUEs and body length of Antarctic krill density during the 1997/98 season in Area 48
winter of 1997/98 season in the Area 48. The fishing grounds were formed around the South Shetland ... Islands, west of the Antarctic Peninsula, and around the South Orkneys Islands from mid-December to mid ... -May. From late May till late June, the operation took place in the north of the South Shetland Islands ... and north east of South Georgia. Size composition differed among the areas. In the west of the ...
Meeting Document : WG-EMM-99/48 : Auteur(s): S. Kawaguchi (Japan)
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Examination of the CCAMLR toothfish GLM
Abstract: Various elements of the Generalized Linear Model (GLM) used to standardise toothfish ... of 1992-1993 prosecuted by Russian vessels and the winter fishery of 1995 onwards prosecuted by other ... nationalities, coupled with the existence of the experimental fishery in 1994, lead us to suggest that future ... being no data for 1993, one of the most successful summer seasons. The relationship between CPUE and ...
Meeting Document : WG-FSA-98/35 : Auteur(s): G.P. Kirkwood and D.J. Agnew (United Kingdom)
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Effect of missing modes on calibration sphere target strengths (ICES CM 1996/b: 37, Fish Capture Committee)
Abstract: It has been suggested that modes of vibration of solid elastic spheres, such as those ... used in the calibration of echo sounder systems, can be affected by the manner of suspension. This ... hypothesis is investigated in the context of reported experimental calibration trials with the SIMRAD EK500 ... -diameter spheres composed of electrical grade copper and 33.2- and 38.1-mmdiameter spheres composed of ...
Meeting Document : WG-EMM-96/46 : Auteur(s): Foote, K.G.