Résultats de la recherche
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ON THE STRATOSPHERE OZONE DISTRIBUTION ASYMMETRY POSSIBLE IMPACT ON KRILL BASED ECOSYSTEM
data (C1 data) from vessels fishing for krill in the CAMLR Convention Area in 1974-2007 is started to ... to the insufficient recent scientific data. To study the possible influence upon ecosystem the ... available data of phytoplankton distribution in South Ocean in 1997-2007 and the fine-scale catch and effort ... Abstract: Besides the climate change impact on krill based ecosystem uncertainties the factors of ...
Meeting Document : WG-EMM-09/36 : Auteur(s): G. Milinevsky (Ukraine)
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The need to reduce uncertainties in the Antarctic krill fishery
. Uncertainties over krill escape mortality and the impact of krill fishing on fish larvae and krill predators are ... Workflow Status: Content Approved Document Release Consent: Yes Delegation responsibility for releasing ... Abstract: Abstract Interest in krill fishing continues to grow. To ensure that this fishery ... . Lack of sufficient information about abundance of krill and krill predator populations, their ...
Meeting Document : CCAMLR-XXIX/BG/21 : Auteur(s): ASOC Observer
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Preliminary announcement of ‘Workshop on Krill Culturing Techniques’
Abstract: This document is to announce our intension to hold ‘Workshop on krill culturing ... recently succeeded in reproducing and raising Antarctic krill up to juvenile stages under an artificial ... . Developing techniques of culturing krill in large number is thought to be a major break through for further ... understanding of krill biology. However, these achievements are not effectively gathered to provide a standard ...
Meeting Document : WG-EMM-01/37 : Auteur(s): Delegation of Japan
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Krill Fishery Report 2015
Abstract: A consolidated summary of information related to the krill fishery, in a similar format ... to the fishery reports that are completed for finfish fisheries, is presented for consideration by ... distribution of catches are included. Author(s): CCAMLR Secretariat Title: Krill Fishery Report 2015 Approval ...
Meeting Document : SC-CAMLR-XXXIV/BG/21 : Auteur(s): CCAMLR Secretariat
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Uncertainty in acoustic surveys of Antarctic krill
krill TS was then investigated through in situ measurements (Hewitt and Demer, 1991). The TS data ... been observed to vary as much as 8 dB, depending on the time of day (unpublished data). Also, Monte ... regressions of zooplankton scattering data (Demer and Martin, 1995). Therefore, the accuracy and precision ... the compensation function to survey data, the resulting biomass estimates were an average of 1.8 dB ...
Meeting Document : WG-EMM-95/72 : Auteur(s): Demer, D.A.
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Estimation of the green weight of krill caught
parameter values are reported in each vessel’s haul-by-haul catch and effort data. This paper reviews the ... data reported in 2013/14 (to May 2014). Vessels fishing in 2013/14 used six methods for the direct ... parameters at the required frequency. In addition, some data submissions included additional formulae to the ... CCAMLR data forms and these suggest that certain parameter values may have been back-calculated. This may ...
Meeting Document : WG-EMM-14/29 : Auteur(s): Secretariat
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A quantified Bayesian maximum entropy estimate of Antarctic krill abundance across the Scotia Sea and in small-scale management units from the 2000 CCAMLR survey
producing maps of krill distribution, from the data collected during the 2000 CCAMLR survey of the Scotia ... an objective choice of the most probable reconstruction of krill distribution, given the data. The ... . During the survey, data were integrated at approximately 1 nm intervals, resulting in 9,586 observed data ... Abstract: We present the results of an alternative method of estimating krill abundance, and ...
Meeting Document : WG-EMM-05/42 : Auteur(s): B.G. Heywood, S.F. Gull and A.S. Brierley (United Kingdom)
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Interannual and seasonal variability of salp by-catch from Japanese krill fishery around the South Shetland Islands
Abstract: Data on salp by-catch and green krill were analyzed based on Logbook data of Japanese ... krill trawlers. Inter-annual and seasonal variability of the timing, duration and strength of salp bloom ... were indicated. Salp by-catch and occurrence of green krill seemed to show reverse correlation ... , implying the competition for phytoplankton between krill and salps. Author(s): Naganobu, M., Ichii, T ...
Meeting Document : WG-EMM-97/37 : Auteur(s): Naganobu, M., Ichii, T., Kawaguchi, S.
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Estimation of the green weight of krill caught
catch and effort data (C1 data). Vessels fishing in 2014/15 used five methods for the direct estimation ... scale and meal conversion. This paper provides a preliminary summary of the data reported so far in 2014 ... Abstract: Vessels operating in the krill fishery in CCAMLR’s Convention Area are required to ... directly estimate the green weight of krill caught (Conservation Measure 21-03, Annex B). This requirements ...
Meeting Document : WG-EMM-15/19 : Auteur(s): CCAMLR Secretariat
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Comparative studies on the biological and acoustical properties of krill aggregations (Euphausia superba Dana) samples during the XIII Italian Expedition to the Ross Sea (December 1997–January 1998)
catch data and the one obtained by processing acoustic data, acquired during the net sampling; (2) to ... processing acoustic data; (3) to analyse the structure of Euphausia superba population on the basis of ... biological variables, extracted from catch data;. The analysis of the biological parameters seems to indicate ... ). The analysis of acoustic and catch data indicate that: (1) the acoustic discrimination between the two ...
Meeting Document : WG-EMM-00/39 : Auteur(s): M. Azzali, J. Kalinoswki, G. Lanciani and I. Leonori (Italy)