Résultats de la recherche

1. Dynamics of Notothenia rossii rossii size-age structure on the Kerguelen Islands shelf

   used to characterise the age composition. It was determined that in the initial years of exploitation ... catches and in some years (1981-1985) fisheries were based practically on recruitment. After the closure ... . In May-June 1991 the mean length was 59.2 cm, mean age was 7.4 years; some 70% of catch consisted of ... that observed in the initial years of exploitation and further closure of marbled rockcod specialised ...

   Meeting Document : WG-FSA-94/04 : Auteur(s): P.B. Tankevich (Ukraine)

2. Investigation of the sensitivity of the Ross Sea toothfish assessment to withholding subsets of the available data

   assessments, when each extra year of withheld data represented a large contribution to the model. In later ... example even when the number of tag recaptures in the most recent year was doubled or halved, the ... time as more years’ data becomes available. The 2009 stock assessment of Antarctic toothfish in the ... estimated by the models arising from withholding data was found to be highest in the earlier years of stock ...

   Meeting Document : WG-SAM-11/17 : Auteur(s): S. Mormede (New Zealand)

3. REVISION DES PRESCRIPTIONS TECHNIQUES ENCADRANT LA PECHE A LA LEGINE AFIN DE LIMITER LES PRISES ACCESSOIRES

   Abstract:  The Patagonian toothfish fishery in the EEZ of Kerguelen (division 58-5-1) and Crozet ... Territories (TAAF). The TAAF relies on advice from several scientific institutions, in particular from the ... recommendations in order to minimize fish by-catch of fish that are not targeted by the fishery campaign of 2011 ... obtained with the enforcement of these measures are analyzed, some quantified targets will be defined in ...

   Meeting Document : SC-CAMLR-XXX/BG/10 : Auteur(s): Delegation of France

4. Southern right whale (Eubalaena australis) reproductive success is influenced by krill (Euphausia superba) density and climate

   condition and, therefore, on foraging success. This, in turn, might be affected by climatically driven ... change in the abundance of the species main prey, krill (Euphausia superba), on the feeding grounds ... between 1997 and 2013 in southern Brazil, where the species concentrate during their breeding season. The ... number of calves recorded each year varied from 7 to 43 (x = 21.11 ± 11.88). Using cross-correlation ...

   Meeting Document : WG-EMM-16/P06 : Auteur(s): E. Seyboth, K.R. Groch, L. Dalla Rosa, K. Reid, P.A.C. Flores and E.R. Secchi

5. AN ECOSYSTEM-BASED MANAGEMENT PROCEDURE FOR KRILL FISHERIES: A METHOD FOR DETERMINING SPATIALLY-STRUCTURED CATCH LIMITS TO MANAGE RISK OF SIGNIFICANT LOCALISED FISHERIES IMPACTS ON PREDATORS.

   krill fisheries which draws together past experience in CCAMLR. It provides an empirical ecosystem ... Abstract:  In this paper, we develop an ecosystem-based, precautionary management procedure for ... of predator-prey dynamics beyond that evident in the data. It is a natural extension of the current ... . Consequently, its formalism means there is no need to undertake a staged approach in providing advice. The ...

   Meeting Document : WG-SAM-08/16 : Auteur(s): A. Constable and S. Candy (Australia)

6. An ecosystem-based management procedure for krill fisheries: a method for determining spatially-structured catch limits to manage risk of significant localised fisheries impacts on predators

   krill fisheries which draws together past experience in CCAMLR. It provides an empirical ecosystem ... Abstract:  In this paper, we develop an ecosystem-based, precautionary management procedure for ... of predator-prey dynamics beyond that evident in the data.  It is a natural extension of the current ... .  Consequently, its formalism means there is no need to undertake a staged approach in providing advice.  The ...

   Meeting Document : WG-EMM-15/36 : Auteur(s): A. Constable and S. Candy (Australia)

7. KRILLBASE: a circumpolar database of Antarctic krill and salp numerical densities, 1926–2016

   this is stored in national archives, sometimes only in notebooks. In order to make these important data ... salp individual (multiple species, and whether singly or in chains). These were combined into a central ... , autecology, higher predator foraging and food web modelling in addition to fisheries management and ... 56 seasons in two epochs (1926–1939 and 1976–2016). Here, we illustrate the seasonal, inter-annual ...

   Meeting Document : WG-EMM-17/P03 : Auteur(s): A. Atkinson, S.L. Hill, E.A. Pakhomov, V. Siegel, R. Anadon, S. Chiba, K.L. Daly, R. Downie, S. Fielding, P. Fretwell, L. Gerrish, G.W. Hosie, M.J. Jessopp, S. Kawaguchi, B.A. Krafft, V. Loeb, J. Nishikawa, H.J. Peat, C.S. Reiss, R.M. Ross, L.B. Quetin, K. Schmidt, D.K. Steinberg, R.C. Subramaniam, G.A. Tarling and P. Ward

8. Using stationary acoustic platforms to assess precision and accuracy of acoustical krill surveys

   Abstract:  The current CCAMLR protocol specifies daytime acoustic sampling in order to avoid ... issues of diel changes in acoustic scattering strengths. However, due to logistic constraints, acoustic ... a regular basis deployed stationary platforms in the main area for commercial krill harvesting at ... the South Orkney Islands since 2014, and in this report some of these data have been analysed in order ...

   Meeting Document : WG-EMM-2019/32 : Auteur(s): T. Klevjer, G. Skaret and B.A. Krafft

9. Evaluation of Antarctic krill biomass and distribution off the South Orkney Islands 2011-2015

   coverage in all years except 2013. The results show that except from the year 2015, krill densities were ... . 8 million tons of krill within the stratum in the peak year 2014. There were also consistently ... assessments, but the frequencies operated varied between vessels and years. In addition, the survey coverage ... has varied between years in particular due to ice. In order to allow for comparison of distribution ...

   Meeting Document : WG-EMM-15/54 : Auteur(s): G. Skaret, B.A. Krafft, L. Calise (Norway), J. Watkins (UK), R. Pedersen and O.R. Godø (Norway)

10. A brief outline of the biology of the Antarctic silverfish, Pleuragramma antarcticum Boulenger, 1902 (Nototheniidae) from the Antarctic Indian Ocean

    three relatively isolated groups. Fish aged from 0+ to 3+ years live in the epi- mesopelagic zone where ... when they reach 13-16 cm in length and 4-6 years of age. Males reach maturity at 12-18 cm in length and ... species in the outer waters of Antarctica. In the Indian sector of the Southern Ocean there are at least ... highest for high-latitude Antarctic fish. Spawning occurs in the winter-spring period. P. antarcticum is a ...

    Meeting Document : WG-FSA-92/11 Rev. 1 : Auteur(s): V.V. Gerasimchuk (Ukraine)

Pages