Search results
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ON METHODS OF THE EXPERIMENT CARRIED OUT TO DETERMINE THE RATE OF ‘ESCAPE MORTALITY’ ON FISHING OR RESEARCH VESSELS DURING ANTARCTIC KRILL FISHERY
Abstract: According to recommendations of Working Group on Ecosystem Monitoring and Management ... (SC-CAMLR-XXVIII/3, paragraph 3.7), 2009 in Bergen, due to the results of considering Document WG-EMM ... -09/11, in which the uncertainty of krill amount perished while its trawling at fishery is focused ... , the recommendations were submitted on carrying out the experiment to determine the rate of krill ...
Meeting Document : SC-CAMLR-XXVIII/BG/10 : Author(s): Delegation of Ukraine
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Assessment of incidental catches of seabirds in the French EEZ included in Division 58.5.1 and Subarea 58.6
global diminution of seabird incidental mortality. This document presents a quantified assessment of the ... evolution of avian mortality between 2007 and 2013, ongoing studies and research in the nature reserve of ... incidental catch of seabirds for the 2013-2014 period. It also presents a synthesis of the populations ... . Author(s): C. Marteau (France) Title: Assessment of incidental catches of seabirds in the French EEZ ...
Meeting Document : WG-FSA-13/06 : Author(s): C. Marteau (France)
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Analysis of krill trawling positions in the area north of the South Shetland Islands (Antarctic Peninsula area) from 1980/81 to 1998/99
Abstract: Positions of commercial krill operation for 1980/81 season to 1998/99 season in the ... area to the north of South Shetland Islands were analyzed by using GLM (generalized linear model ... ). Fishing season, the timing, and the longitude were significant factors to explain the variability of ... from mid-1980 onwards, they tended to happen in the south, with exceptions of 1994/95 and 1995/96 ...
Meeting Document : WG-EMM-00/58 : Author(s): S. Kawaguchi (Japan)
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CCAMLR Satellite Overwatch Report (Decision of the Thirty-seventh Meeting of the Commission, paragraph 3.8)
Abstract: This paper contains the report on outcomes of the work carried out by France and, in ... satellite overwatch project involved the receipt of images from target surveillance areas within the ... Center (FMCC). Part A of the paper reports on images analysed by the French FMCC containing a ... B of the paper reports on the analysis of AIS data carried out by the French agency CEREMA. Author(s ...
Meeting Document : CCAMLR-38/BG/06 : Author(s): Delegation of France and CCAMLR Secretariat
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An 8-year cycle in krill biomass density inferred from acoustic surveys conducted in the vicinity of the South Shetland Islands during the austral summers of 1991/1992 through 2001/2002
vicinity of the South Shetland Islands, Antarctica were re-analyzed using updated procedures for ... compensating for diel vertical migration of krill outside of the acoustic observation window. Intra-and inter ... surveys conducted in the austral summers of 1991/1992 through 2001/2002. Estimated biomass density ranged ... variability may be attributed to changes in the spatial distribution of krill relative to the survey area ...
Meeting Document : WG-EMM-03/6 : Author(s): R.P. Hewitt, D.A. Demer and J.H. Emery (USA)
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Analysis of variability of krill size and fish by-catch in Japanese krill fishery based on scientific observer data
Abstract: To estimate optimal relative sample size of scientific observer data collected on ... –2008 were analysed by using a hierarchical Bayesian model. The models were composed of multistage ... -temporal variability in size structure of krill population, which is presumably derived from large ... variability of recruitment causing difficulty in predicting krill population dynamics. Variances of observer ...
Meeting Document : WG-EMM-12/68 : Author(s): T. Okuda and M. Kiyota (Japan)
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Direct ageing of Antarctic krill (Euphausia superba) – potential utility of eyestalk sections for age determination
Abstract: We outline a method for the direct determination of age in Antarctic krill (Euphausia ... endocuticle layer of the eyestalks and gastric mill in decapod crustaceans. Here we report on a preliminary ... proof of concept study using several known age krill grown under controlled conditions at the Australian ... performed. First, longitudinal sections of the eyestalk from known age krill (2+ and 3+ years old) were ...
Meeting Document : WG-EMM-15/45 : Author(s): C. Reiss (USA), R. Kilada (Canada) and S. Kawaguchi (Australia)
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Changing status of three notothenioid fish at the South Shetland Islands (1983–2016) after impacts of the 1970–80s commercial fishery
prevalence of three species, Notothenia rossii, Gobionotothen gibberifrons and N otothenia coriiceps in ... 2007 and 2012 around the South Shetland Islands: (1) continued increase in the abundance of N. rossii ... ; (2) further decline in G. gibberifrons recruitment evidenced by low proportions of juvenile fish; and ... (3) a high abundance of N. coriiceps. Reasons for lack of recovery in G. gibberifrons remain obscure ...
Meeting Document : WG-FSA-17/P01 : Author(s): E. Barrera-Oro, E. Marschoff and D. Ainley
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Results of a hydroacoustic survey of Antarctic krill populations in CCAMLR Division 58.4.1 carried out in January to April 1996
CCAMLR Division 58.4.1 for the purposes of estimating overall biomass (B0). The krill biomass in the area ... surveyed (873,000 km2) was estimated to be 6.67 million tonnes with a CV of 27%. Krill were more abundant ... in the west of the survey area 800-1200E than in the 120°-150°E region. The majority of the krill ... detected were found in the top 80 metres of the water column. Author(s): Higginbottom, I., de la Mare, W ...
Meeting Document : WG-EMM-96/28 : Author(s): Higginbottom, I., de la Mare, W., Pauly, T., Nicol, S.
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Use of current velocity data from fram to investigate the large scale transport of krill in the Scotia Sea
Abstract: Current velocity data from a single time realisation of the FRAM model are presented ... for particular areas of the Scotia Sea. The regions are based on the CCAMLR sub-areas and also include ... boundaries over the upper 250m of the water column. These have been combined with estimates of krill density ... and standing stocks to consider the large scale flux of krill through the regions and estimate ...
Meeting Document : WS-Flux-94/05 : Author(s): E.J. Murphy (United Kingdom)