Résultats de la recherche
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Krill catch distribution in relation to predator colonies 1987 to 1992
previous years. It is estimated that the catch in the critical period-distance was equal to 12% and 15% of ... Abstract: The distribution of krill catches in relation to land-based predator colonies ... , calculated from CCAMLR fine-scale data, is shown for Subareas 48.1 and 48.2. The pattern of catches in 1992 ... -distance’). Although data reporting was not complete for Subarea 48.2 in 1992, it was estimated that 38% of ...
Meeting Document : WG-KRILL-93/10 : Auteur(s): Secretariat
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A comparative morphometric analysis of sagittal otoliths of three icefishes (Channichthyidae) in Antarctic waters
Abstract: In the present study a comparative morphometric analysis of sagittal otoliths was ... performed in three Channichthyids (Pseudochaenichthys georgianus, Chaenocephalus aceratus and Chaenocephalus ... binarized images of left and right otoliths for fish ranging from 20 to 67 cm TL. To test for significant ... differences between the left and right sagittae in BSDs, a univariate and multivariate ANOVA and MANOVA were ...
Meeting Document : WG-FSA-18/47 : Auteur(s): G. Plaza, C. Rodríguez-Valentino and P.M. Arana
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Annual report of research fishing operations at Subarea 48.6 in the 2017/18 fishing season
. The data set, C2 and Observer data, was provided by the CCAMLR Secretariat on the 3th August, 2018. In ... toothfish (Dissostichus mawsoni) at Subarea 48.6 in the 2017/18 fishing season by Japan and South Africa ... research operations at Subarea 48.6 have not yet been completed in the 2017/18 fishing season. Also, some ... data is not reflected in tables and figures because it is still under process. Author(s): Delegations ...
Meeting Document : WG-FSA-18/71 : Auteur(s): Delegations of Japan and South Africa
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Update report on marine mammal interactions in Division 58.4.4
individuals observed in 2014 were observed again in 2018 on the west part of Crozet’s EEZ along with two other ... Abstract: Fishing activities targeting Patagonian toothfish (Dissostichus eleginoides) occurs in ... in 2012 and 2014, analyses show that 13 individuals have been interacting with the vessel. The three ... . Tixier, T. Okuda, C. Péron and F. Massiot-Granier Title: Update report on marine mammal interactions in ...
Meeting Document : WG-SAM-2019/01 : Auteur(s): N. Gasco, P. Tixier, T. Okuda, C. Péron and F. Massiot-Granier
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Revision of the precautionary approach to ensuring the rational use of the living resource (Dissostichus eleginoides) in Subarea 48.3 (full version)
. This paper reviews the long-term decline in the size structure of Patagonian toothfish (Dissostichus ... eleginoides) observed in longline catches taken in the South Georgia Area (FAO Area 48.3). We note that from ... the start of the 2000s until now, longline fishing in the South Georgia area has targeted immature ... fish smaller than 100 cm. The issue of non-rational use of the Patagonian toothfish stock in Subarea ...
Meeting Document : WG-FSA-2019/40 : Auteur(s): Delegation of the Russian Federation
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Acoustic monitoring and evaluation of krill in the Antarctic ecosystem Bransfield Strait and around Elephant Island during ANTAR XXI and XXII, aboard RV Humboldt, Peru
from the surface to 20 m deep. A wide distribution of krill in the study area, the highest densities ... (Euphausia superba) was held on board the BIC Humboldt during scientific campaigns Peru to Antarctica in the ... high densities between 20 and 50 m deep while overnight, dispersed and scattered swarms were detected ... were recorded in the Bransfield Strait and between Deception Island and Isla Torre (250-1 000 m / mn ...
Meeting Document : WG-EMM-16/76 : Auteur(s): R. Cornejo, M. Flores and J. Zuzunaga
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Annual report of research fishing operations at Subarea 48.6 in 2016/17 fishing season
, 2018. In this paper, the data set during last fishing season (2016/17) was used for reporting the ... Subarea 48.6 in 2016/17 fishing season Approval: Approved Secretariat Workflow Status: Content Approved ...
Meeting Document : WG-SAM-18/32 : Auteur(s): Delegations of Japan and South Africa
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An exploration of the biological data used in the CCAMLR Subarea 48.3 Patagonian toothfish stock assessments
Abstract: WG-FSA 2018 noted that changes in productivity parameters may impact assessment ... change. The Working Group recommended that key assessment parameters be reviewed and that changes in the ... fishery dynamics that would impact their estimation be explored. The biological productivity parameters in ... subarea 48.3 are analysed here, particularly whether the proportion of females in the catch, maturity at ...
Meeting Document : WG-SAM-2019/32 : Auteur(s): E. MacLeod, K. Bradley, T. Earl, M. Söffker and C. Darby
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Inter-annual variation in condition index of the mackerel icefish Champsocephalus gunnari
. High condition indices, indicative of good feeding conditions, were present when krill were abundant in ... ): Parkes, G., Everson, I., Kock, K.-H. Title: Inter-annual variation in condition index of the mackerel ... the region. Years when krill were scarce and condition index was consequently low, were consistent ... with years when indices from land-based krill predators also indicated krill were scarce. Author(s ...
Meeting Document : WG-EMM-96/43 : Auteur(s): Parkes, G., Everson, I., Kock, K.-H.
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Preliminary model of krill fishery behaviour in Subarea 48.1
the management option of closing the zones around Livingston and Elephant Islands in alternate years ... concentrated in foraging areas of land-based predators in alternate years under this scenario. Author(s): D.J ... fishery in Subarea 48.1 and estimates the effort applied and the catch of krill in fine-scale squares ... March, compare favourably with the general distribution of catches in Subarea 48.1. A number of ...
Meeting Document : WG-KRILL-93/14 : Auteur(s): D.J. Agnew (Secretariat)