Résultats de la recherche
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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 ... rates between areas and seasons vary greatly (from 0 to 70%). Depredation rates were updated for ... individuals including a young calf. This document provides an update of the interaction and depredation rates ... and the first insight into individual’s identifications for Division 58.4.4. Author(s): N. Gasco, P ...
Meeting Document : WG-SAM-2019/01 : Auteur(s): N. Gasco, P. Tixier, T. Okuda, C. Péron and F. Massiot-Granier
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Pilot study on electrophoretic variation and stock structure in the mackerel icefish, Champsocephalus gunnari, South Georgia waters
the species is to be managed effectively. Proposals for an electrophoretic and biological analysis of ... gel electrophoresis. Thirty-one putative enzyme-coding loci were screened for enzyme polymorphisms ... commercially-exploited mackerel icefish, Champsocephalus gunnari, together with a preliminary assessment of ... of icefish samples (N = 18 to 42 per sample) indicated stock separation on a local scale. Genetic ...
Meeting Document : WG-FSA-90/10 : Auteur(s): G.R. Carvalho and D.P. Lloyd-Evans (United Kingdom)
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Informations pour les coordinateurs techniques et les observateurs scientifiques
eleginoides (13.17 MB) Crustacean guide for predator studies in the Southern Ocean (42.16 MB) Autres matériels ... de formation pour les observateurs Seabird identification – A photographic guide for observers at sea in ...
Page : Site Section: Science
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Survey results on abundance and biology of toothfish in Division 58.4.3b by Shinsei maru No.3 during 2006/07–2011/12 and proposal of the consecutive survey in 2012/13
, suggesting that Banzare Bank is one of important spawning grounds for D. mawsoni. On the other hand, such an ... . Predicted CPUE (catch/km) for D. eleginoides and D. mawsoni varied with years but showed no upward and ... information for the stock status and biology of toothfish in the Division 58.4.3b (Banzare Bank), using a ... but rarely occurred in the deeper areas > 1 400 m. Progressed stages of GMI and high GSIs for D ...
Meeting Document : WG-FSA-12/56 : Auteur(s): K. Taki, T. Iwami, M. Kiyota and T. Ichii (Japan)
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Information on the status of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in the lower South Shetland Islands derived from a long-term monitoring program (1983–2006) at Potter Cover
abundance of N. rossii showed an increase in years 2002-2003, whereas G. gibberifrons was absent in the ... gibberifrons in relation to the non commercially fished Notothenia coriiceps, which was previously reported for ... the period 1983-1999, is still evident. At Potter Cove, despite an overall increasing trend of N ... likely explanation for the decrease in recruitment to the inshore sub-populations of N. rossii and G ...
Meeting Document : WG-FSA-06/25 : Auteur(s): E.R. Barrera-Oro and E.R. Marschoff (Argentina)
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Diel vertical distribution of Antarctic krill around the South Shetland Islands in February 2019 and its potential effect on biomass estimation
, while 16.5 % compared to 5.7 % of the corresponding total NASC value (m 2 n.mile-2) integrated for ... that, when 15m is used for upper integration layer limit, both daytime survey and nighttime survey are ... likely underestimate the krill density due to the shallow distribution pattern of the animal, which may ... responsibility for releasing documents: China ...
Meeting Document : SG-ASAM-2019/05 : Auteur(s): X. Wang, X. Yu, J. Zhang and X. Zhao
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Diet composition and observations on reproduction of Champsocephalus gunnari in Subarea 48.3 in March/April 1996, Dr Eduardo Holmberg survey
items, known as an important alternative food in years of krill scarcity, were ingested only ... higher than those reported for the 1991 and 1994 years of krill shortage. The analysis of the ovarian ... in the region in levels equivalent to the historical years of high abundance. Author(s): Marschoff ... , E., Barrera-Oro, E., Casaux, R. Title: Diet composition and observations on reproduction of ...
Meeting Document : WG-FSA-96/28 Rev. 1 : Auteur(s): Marschoff, E., Barrera-Oro, E., Casaux, R.
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Observation on the interactions between marine mammals and mid-water krill trawl
Abstract: An observation on the interaction between marine mammal and krill midwater trawl was ... carried out onboard the Chinese krill fishing vessel Fu Rong Hai during the 2018/19 fishing season. The ... inner-trawl observation was made using an Underwater IP Camera, while sea surface observation was ... Status: Content Approved Document Release Consent: No Delegation responsibility for releasing documents ...
Meeting Document : WG-FSA-2019/60 : Auteur(s): Y. Ying, G. Fan, X. Zhao, J. Zhang, X. Wang and J. Zhu
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Background papers considered relevant to the WG-EMM discussions on feedback management
sources, has been collated within Mapping Application for Penguin Populations and Projected Dynamics ... ., Schrimpf M., Lynch H.J. Mapping Application for Penguin Populations and Projected Dynamics (MAPPPD): Data ... and tools for dynamic management and decision support (In Press) Lynch H J., Fagan W. F. Naveen R ... Secretariat Workflow Status: Content Approved Delegation responsibility for releasing documents: United ...
Meeting Document : WG-EMM-16/44 : Auteur(s): Delegation of the United Kingdom
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PRELIMINARY ASSESSMENT OF MACKEREL ICEFISH, CHAMPSOCEPHALUS GUNNARI, IN THE VICINITY OF HEARD ISLAND AND MCDONALD ISLANDS (DIVISION 58.5.2), BASED ON A SURVEY IN JULY 2008, USING THE GENERALISED YIELD MODEL
58.5.2 in the vicinity of Heard Island in July 2008 to provide the information for an assessment of short ... for the area of Division 58.5.2 to the west of 79o 20’ E using standard CCAMLR methods. The strong ... year class detected in last year’s survey is now fully recruited as the 2+ cohort, and dominates the ... , CHAMPSOCEPHALUS GUNNARI, IN THE VICINITY OF HEARD ISLAND AND MCDONALD ISLANDS (DIVISION 58.5.2), BASED ON A SURVEY ...
Meeting Document : WG-FSA-08/56 : Auteur(s): D.C. Welsford (Australia)