Resultados de la búsqueda
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Mitigating killer whale depredation on demersal longline fisheries by changing fishing practices
orca) interacting with Patagonian toothfish (Dissostichus eleginoides) longliners off the Crozet ... extensive monitoring of the killer whale population allowed us to model interactions with whales, CPUE and ... time it takes for whales to reach vessels. The significant influence of five operational variables was ... detected statistically using generalized linear mixed models. The probability of interactions between ...
Meeting Document : WG-FSA-14/P03 : Autor(es): P. Tixier, J. Vacquie Garcia, N. Gasco, G. Duhamel and C. Guinet
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Krill length frequency distribution in Subarea 48.3 in January–April 1988 in relation to sources of its origin
considered in the frame of hypothesis of krill resources forming from two sources: Antarctic Circumpolar ... Current and Weddell Scotia Sea water flow. It is shown, that small krill with the mode of about 33 mm is ... distributed in the coastal zone of about 7-40 miles wide, further is situated the boundary zone at the ... distance of about 30-60 miles, beyond boundary zone occurs larger krill with the mode of about 49 mm. Krill ...
Meeting Document : WG-EMM-03/40 : Autor(es): F.F. Litvinov, V.N. Shnar, A.V. Zimin and V.V. Lidvanov (Russia)
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On possibility of using acoustic method to improve quality of Champsocephalus gunnari biomass estimates in Subarea 48.3
Abstract: An attempt has been made to study icefish as an object of acoustic survey basing on the ... acoustic and biological data obtained by Russian RN ATLANTIDA in the area of South Georgia Island (January ... obtained from the catches by midwater trawl to those estimated with TS in situ measurements for fish ... recorded within the pelagic zone. Basing on the analysis of acoustic measurements and results of commercial ...
Meeting Document : WG-FSA-00/31 : Autor(es): S. Kasatkina (Russia)
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Semi-empirical acoustic estimates of krill biomass derived from simulated commercial fishery data based on single-frequency acoustics
US AMLR datasets and used to mimic data that might be collected by the commercial fishery during the ... the 3-frequency method using the CCAMLR protocol for the period between 1996 and 2011 in both the ... Elephant Island and West Shelf Areas of the US AMLR survey grid. Cross-validation of acoustic estimates ... between these two areas and the 3-frequency biomass showed that models developed using a wide length ...
Meeting Document : SG-ASAM-12/04 : Autor(es): A.M. Cossio, G.W. Watters, C.S. Reiss, J. Hinke and D. Kinzey (USA)
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Report on Argentine CCAMLR Subarea 48.3 survey: fish
Abstract: Information on biological aspects of the finfish catches obtained in the survey of BIP ... Dr. E L Holmberg, conducted around Shag Rocks and the South Georgias Islands in April-May 2013, is ... brevicauda guntheri and Gobionotothen gibberifrons, the most frequents. The highest fish densities were found ... in the shelf of the South Georgias Islands. Total lengths ranged from 4 to 55 cm, 7 to 63 cm, 9 to 51 ...
Meeting Document : WG-FSA-13/62 : Autor(es): A. Zavatteri and A. Giussi (Argentina)
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Semi-empirical acoustic estimates of krill biomass derived from simulated commercial fishery data based on single-frequency acoustics
US AMLR datasets and used to mimic data that might be collected by the commercial fishery during the ... the 3-frequency method using the CCAMLR protocol for the period between 1996 and 2011 in both the ... Elephant Island and West Shelf Areas of the US AMLR survey grid. Cross-validation of acoustic estimates ... between these two areas and the 3-frequency biomass showed that models developed using a wide length ...
Meeting Document : SG-ASAM-15/03 : Autor(es): A.M. Cossio, G.W. Watters, C.S. Reiss, J. Hinke and D. Kinzey (USA)
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Using data recorded during commercial krill fishing in Feedback Management
statistical handling of the collected data into stock abundance information. Godø et al. (2015) (WG-EMM-15/13 ... ) show the inherent variability of catch and acoustic data collected during fishing operation. At the ... same time the data might inform about patterns in the ecosystem of importance to FBM. Similarly ... distribution and abundance of krill in the South Orkney Islands. However, due to the lack of survey design ...
Meeting Document : WG-EMM-16/74 : Autor(es): O.R. Godø, G. Skaret and E. Niklitschek
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Fishery-based research in exploratory fisheries
Abstract: This paper summarises the data collection requirements for the exploratory fisheries ... for Dissostichus spp. and the general characteristics of the research hauls which may assist WG-FSA to ... determine the extent to which the available data may be used in developing assessments for these fisheries ...
Meeting Document : WG-FSA-11/25 : Autor(es): Secretariat
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UK groundfish survey in Subarea 48.3 (South Georgia and Shag Rocks), January 2000
Abstract: A survey was conducted by the UK around South Georgia and Shag Rocks, Subarea 48.3 ... , from 11 January to 2 February 2000, using the FV Argos Galicia. The design followed similar surveys by ... the UK conducted throughout the late 1980s and 1990s. The swept area estimates of the standing stock ...
Meeting Document : WG-FSA-00/21 : Autor(es): I. Everson, D. Agnew, P. Bagley, M. Collins, T. Daw, R. Forster, T. Marlow, A. North (United Kingdom), J. Szlakowski (Poland), E. Van Wijk (Australia), S. Wilhelms (Germany) and C. Yau (United Kingdom)
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UPDATE ON ITEMS OF INTEREST TO WG-IMAF
Economic Zone that are relevant to the work of the IMAF working group. The bycatch of seabirds by fisheries ... within New Zealand’s EEZ in recent years that either breed or forage within the CCAMLR convention area ... (Convention Area seabirds) is detailed. This paper contains description of the recent and ongoing seabird ... mitigation trials that are underway in New Zealand. We also briefly report on the ongoing revision of the ...
Meeting Document : WG-IMAF-09/16 : Autor(es): N. Walker (New Zealand)