Résultats de la recherche

1. Seabird by-catch update on industrial Patagonian toothfish fishery in southern Chile

   determined the initiation of the NPOA to reduce seabird incidental mortality in all longline fisheries in ... Abstract:  Implementation of NPOAs requires in first place an assessment of all longline fisheries ... with presumption of occurring seabird incidental mortality. Chile took this responsibility in 2001 and ... started the NPOA-S process by estimating the seabird bycatch at the Patagonian toothfish fishery in ...

   Meeting Document : WG-FSA-04/13 : Auteur(s): J. Arata, C.A. Moreno and R. Hucke-Gaete (Chile)

2. Developing robust biomass estimates and advice on catch limits in research blocks

   resulted in conflicting estimates of biomass between the CPUE by seabed area and the Chapman estimate. The ... . This uses local Chapman biomass estimates in the reference area instead of the stock biomass estimated ... Abstract:  In 2016, changes to the methods used by CCAMLR to estimate biomass in research blocks ... that improves on the original CPUE by seabed area method for toothfish populations in research blocks ...

   Meeting Document : WG-SAM-17/37 : Auteur(s): S.J. Parker, S. Mormede, A. Dunn, S.M. Hanchet and C. Marsh

3. Report on fish by-catch during research fishing activities in Division 58.4.4b between 2008 and 2018

   in the eastern part, where unusually high concentrations of Pennatulacea (Sea pens) where reported in ... post-released survival rate, we cannot rule out the fact that the use of longlines, and in particular ... inform bycatch mitigation measures” of the ongoing research plan on Patagonian toothfish (Dissostichus ... composition in number and biomass during the period 2008-2018 to investigate the inter-annual variations in ...

   Meeting Document : WG-FSA-2019/53 : Auteur(s): C. Péron, C. Chazeau, N. Gasco and F. Massiot-Granier

4. Fishery selection for Patagonian toothfish in CCAMLR Subarea 48.3, asymptotic or dome shaped?

   Abstract:    Characterisation of fishery selection is key to reducing uncertainty in the ... waters as they age and increase in size and, in combination with the practical difficulties associated ... with age and size to arise. However this type of selection pattern is associated with the estimation of ... highly uncertain quantities of cryptic biomass. A review of the fishery and tagging data from the ...

   Meeting Document : WG-SAM-15/29 : Auteur(s): C. Darby, V. Laptikhovsky and M. Soeffker (United Kingdom)

5. Conversion Factors used for Patagonian toothfish in Division 58.5.1. and Subarea 58.6

   in terms of size, space and time. It also looks at the size of sub-sample used for conversion factor ... measurement in relation with the accuracy of weight estimated at sea. Author(s):  N. Gasco (France) Title ... weight and thus assess the amount of fish withdrawn from the stock. This paper describes factors ... emphasise the need to calculate CF with a sub-sample of the catch that is representative of the total catch ...

   Meeting Document : WG-FSA-15/77 : Auteur(s): N. Gasco (France)

6. APPLYING A TS-PROBE FOR MEASURING ANTARCTIC KRILL (EUPHAUSIA SUPERBA) TARGET STRENGTH IN SITU: PROCEDURES AND DATA ANALYSIS

   strength of Antarctic krill in situ at short range. The experimental methods, procedure for data retrieval ... operating at 38, 120 and 200 kHz is installed in the probe, connected to three pressure resistant ... transducers with 7o half power beam opening angles. The orientation of the probe was monitored with sensors ... transducer platform with the purpose of measuring the orientation of the organisms. All system communication ...

   Meeting Document : SG-ASAM-09/13 : Auteur(s): G. Skaret, L. Calise and E. Ona (Norway)

7. Seabird observations in Subareas 48.1, 48.2 and 88.3 and proposal for a new streamer line design

   of the New Fisheries Project developed by Chile in Statistical Subareas 88.3, 48.1 and 48.2. During ... , carrying out bird observations in each one of the 52 castings with the Spanish-designed longlines as well ... highest number of species was found in Subarea 48.1 with 19 species observed and the least in Subarea 48.2 ... with the presence of only 4 species. Title:  Seabird observations in Subareas 48.1, 48.2 and 88.3 and ...

   Meeting Document : WG-FSA-98/19

8. Diving pattern and performance in nonbreeding gentoo penguins (Pygoscelis papua) during winter

   in Gentoo Penguins is changed by varying the frequency and duration of foraging trips, rather than by ... organization during the foraging trip) in relation to diet in nonbreeding Gentoo Penguins (Pygoscelis papua ... diurnal with 98% of foraging trips completed during the same day. Foraging-trip frequency was 0.8/day ... , trip duration was 6-8 h, and birds spent 51-62% of the foraging trip diving. Dive depth and duration ...

   Meeting Document : WG-CEMP-92/37 : Auteur(s): T.D. Williams (United Kingdom), A. Kato (Japan), J.P. Croxall (United Kingdom), Y. Naito (Japan), D.R. Briggs, S. Rodwell and T.R. Barton (United Kingdom)

9. Chinstrap penguins alter foraging and diving behaviour in response to krill size

   changes in prey availability. Chinstrap penguins are dependent predators of Antarctic krill in the Scotia ... Sea region. Both the sizes of krill found in penguin diets and acoustic estimates of krill biomass ... have fluctuated in recent years. We therefore examined the diet of chinstrap penguins at Livingston ... fish, mean nighttime dive depths, and the proportion of foraging trips occurring overnight. Based on ...

   Meeting Document : WG-EMM-07/11 : Auteur(s): A.K. Miller and W.Z. Trivelpiece (USA)

10. Herpes virus antibodies in Arctocephalus gazella from Cape Shirreff, Livingston Island, Antarctica

    utility of the extra vascular fluid for serological research in this matter is suggested. It is also ... bovine herpesvirus-1 (BHV-1) strain. Antibodies against BHV-1 were detected in four (7.4%) samples. The ... with the knowledge confirming the extended distribution range of herpesvirus, affecting a large number ... of hosts including A. gazella. It is strongly trusted the necessary to develop the scientific ...

    Meeting Document : WG-EMM-01/59 : Auteur(s): O. Blank, J.M. Montt, M. Celedón and D. Torres (Chile)

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