Résultats de la recherche

1. A methodology for estimating total finfish by-catch of the Area 48 krill fishery

   and Myctophidae species using delta-lognormal GLMs presented in Martin et al. (2012).  The bycatch ... Abstract:  The report presents a methodology that can be used to estimate the total finfish ... . Estimates of bycatch rates per tonne of catch were made at a family level for Channichthyidae, Nototheniidae ... removed from stocks due to finfish bycatch at a family level, for Channichthyidae and Nototheniidae ...

   Meeting Document : WG-EMM-12/29 : Auteur(s): T. Peatman, S.M. Martin (United Kingdom), O.R. Godø (Norway) and R.C. Wakeford (United Kingdom)

2. Preliminary assessment of mackerel icefish, Champsocephalus gunnari, on the Heard Island Plateau (Division 58.5.2) based on a survey in April–May 2003

   Abstract:  A preliminary assessment of yield of Champsocephalus gunnari for Heard Island Plateau ... (Division 58.5.2) was undertaken using the standard CCAMLR methods, based on the result of a randomly ... ) implementations indicated that the GYM version provided slightly higher estimates of short-term yield. These ... in recruitment, natural mortality and growth of these fish, combined with the need to maintain a ...

   Meeting Document : WG-FSA-03/32 : Auteur(s): A.J. Constable, C.R. Davies, R. Williams and T. Lamb (Australia)

3. A single-area stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in SSRU 88.2E for the 2004/05 season

   be the same as used for the Antarctic toothfish in the Ross Sea (see Dunn et al. 2005b), except that ... Abstract:  This report outlines a Bayesian sex and age structured population stock assessment ... catch removals were modelled as a single fishery. Model fits to the data were adequate, with the tag ... maturity ogive, there was a significant biomass of mature, but ‘invulnerable’ fish in the projection period ...

   Meeting Document : WG-FSA-05/31 : Auteur(s): A. Dunn, D.J. Gilbert and S.M. Hanchet (New Zealand)

4. KRILLBASE: a multinational, circumpolar database of abundance of Antarctic krill and salps

   led to a series of papers since 2004 that illustrate some of its potential uses. The latest version ... webs and biogeochemical cycles. Sustainably managing the fishery for Antarctic krill against a backdrop ... scientists has collated these disparate data into a central database called KRILLBASE, a composite ... aim is to provide a temporal-spatial data resource to support studies of Southern Ocean ecology ...

   Meeting Document : SC-CAMLR-XXXV/BG/24 Rev. 1 : Auteur(s): A. Atkinson, S. Hill, H. Peat, R. Downie and L. Gerrish

5. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2006/07

   tag recoveries over the past two seasons (Dunn et al. 2007). The length frequency data from the Ross ... the second highest on record with a total of 3431 t against a combined catch limit of 3579 t. The ... management of the SSRUs within the two subareas was changed for the 2006 season as part of a 3-year ... there was a large overrun of the catch limit in the North region, the overall catch limit for Subarea ...

   Meeting Document : WG-FSA-07/28 : Auteur(s): S.M. Hanchet, M.L. Stevenson and A. Dunn (New Zealand)

6. A spatially explicit population dynamics operating model for Antarctic toothfish in the habitable depths of the Ross Sea region

   previously presented restricted and unrestricted models (Mormede et al. 2013). The most plausible model is ... Abstract:  We present a spatially explicit age-structured population dynamics operating model for ... Antarctic toothfish in the Ross Sea region, for a medium scale spatial resolution (189 spatial cells ... considered suitable habitat for toothfish (unrestricted model). The semi-restricted model provides a ...

   Meeting Document : WG-FSA-13/53 : Auteur(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)

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

   Southern Ocean food webs and krill are also fished commercially. Managing this fishery sustainably, against a ... salp individual (multiple species, and whether singly or in chains). These were combined into a central ... provide a temporal-spatial data resource to support a variety of research such as biogeochemistry ... conservation. Previous versions of KRILLBASE have led to a series of papers since 2004 which illustrate some of ...

   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. IMPACTS OF CLIMATE CHANGE ON ANTARCTIC MARINE ECOSYSTEMS: A CALL FOR ACTION

   species) and Antarctic krill (Cheung et al., 2008), as well as changing the habitat characteristics of ... Committee needs to increase its work on climate change impacts in order to consider the consequences of a ... on Ecosystem Management and Monitoring. ASOC requests Members to adopt a Resolution acknowledging the ... various adverse impacts of climate change on the Southern Ocean, to pledge to apply a highly precautionary ...

   Meeting Document : CCAMLR-XXVII/BG/27 : Auteur(s): Submitted by ASOC

9. Preliminary investigations into a two-area stock assessment model for Antarctic toothfish (Dissostichus mawsoni) in the Amundsen Sea Region

   adequate fits to the observed tag recapture data (Mormede et al. 2014b). As an alternative approach, we ... Abstract:  In 2013, the Scientific Committee of CCAMLR could not achieve consensus on a stock ... 88.2H. As a consequence, WG-SAM requested further runs be carried out with emigration estimated in the ... model. However, the models that mimicked emigration in a single area assessment model failed to provide ...

   Meeting Document : WG-FSA-14/57 : Auteur(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)

10. DEVELOPMENT OF A SPATIALLY EXPLICIT AGE-STRUCTURED STATISTICAL CATCH-AT-AGE POPULATION DYNAMICS MODEL FOR MODELLING MOVEMENT OF ANTARCTIC TOOTHFISH IN THE ROSS SEA

    a preliminary development version of this model to Antarctic toothfish in the Ross Sea as an age and ... Abstract:  We present a generalised spatially explicit Bayesian statistical catch-at-age ... numbers of areas, and is implemented as a discrete time-step state-space model that represents a cohort ... -based population age structure in a spatially explicit manner. The model is parameterised by both ...

    Meeting Document : WG-SAM-08/14 : Auteur(s): A. Dunn and S. Rasmussen (New Zealand)

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