Résultats de la recherche

1. The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model

   strategic frameworks for assessing uncertainty in ecosystem dynamics models. Such models have been used ... within CCAMLR to evaluate options for managing the Antarctic krill fishery in the Scotia Sea and southern ... Drake Passage. The model analysed here required 2 311 input values for each of four scenarios and ... to identify the important statistics for consideration when assessing uncertainty in ecosystem ... described in Hill et al. (2007a, 2007b), as an example of good practice for addressing sev- eral types of ... model outputs, and provides an objective basis for targeting data collection and modelling effort to ... Matrix 1 18 5 90 1 Vector or matrix length is the number of relevant modelled areas, except for time ... shorter than a year) 2 There are, in fact, 29 arguments for the main function. Eleven of these are ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 97–118 : Auteur(s): Hill, S.L. and J. Matthews

2. A preliminary assessment and revised growth model of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2017 random stratified trawl survey

   growth model based on recent cohort progressions indicated an increase in size-at-age compared to the ... vicinity of Heard Island and the McDonald Islands during April 2017. This paper provides an updated growth ... model and a preliminary assessment for mackerel icefish (Champsocephalus gunnari) population structure ... , abundance and yield in Division 58.5.2 to the west of 79 o 20’ E using standard CCAMLR methods (CMIX and ...

   Meeting Document : WG-FSA-17/22 : Auteur(s): D. Maschette, P. Burch, P. Yates and D. Welsford

3. FAO Port State Measures Agreement

   Agreement opened for signature for one year. The Agreement will enter into force 30 days after the date of ... authorized for that purpose, having regard in particular to Article 17; (b) ensure that, prior to an ... Code of Conduct for Responsible Fisheries, Recognizing the need to conclude an international ... an inspection, there are clear grounds for believing that a vessel has engaged in IUU fishing or ...

   Document : Site Section: Compliance

4. Distribution, morphology, growth, reproduction, diet and trophic position of two species of grenadier (Macrourus whitsoni and M. caml) in the Ross Sea region of the Southern Ocean (CCAMLR Subareas 88.1 and 88.2)

   least 27 years; in M. caml, full size is attained at about 15–20 years of age and they can live in ... age than in female M. caml (length at maturity 52/46 cm TL; age at maturity 16/13 y for M. whitsoni ... samples led to an estimated trophic level of 4.4 for M. caml and 4.1–4.2 for M. whitsoni. Author(s):  M.H ... different growth rates; M. whitsoni approaches full size at about 10–15 years of age and can live to at ...

   Meeting Document : WG-FSA-12/54 Rev. 1 : Auteur(s): M.H. Pinkerton, P. McMillan, J. Forman, P. Marriott, P. Horn, S. Bury and J. Brown (New Zealand)

5. e-sc-38-a6.pdf

   ... the South Orkney Islands. The moorings had been deployed for 1 year and 6 months respectively in two ... was set to 20 m for the 2019 Area 48 Survey). The scale of the differences in biomass of krill from ... nominated acoustic transects undertaken by fishing vessels in 2018 and 2019 and identified three areas for ... whether other sources of information, for example from CEMP sites, supported the findings of an application/pdf attached to:SG-ASAM-2019

   Meeting Report : SG-ASAM-2019

6. Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea

   continental slope and shelf of the Ross Sea at depths from 30 to 120 m, during the Italian expeditions of 1997 ... /98, 2000 and 2004. The regression lines for estimating TS from nine experiments were: TS 38 ... main contribution to the scattering for small fish is from soft tissues and for larger sizes from hard ... juvenile stages (size: 45–48 mm; age: second year), coinciding with an increase in lipid content in the ... , for (krb) ranging from 0.2 to 20 is similar to that of a high-pass filter, however, the non-linear ... accounts for over 90% of the echo energy (Foote, 1980a), and distributes the reflected sound more omni ... specific ventral sacs (from 12–15% of first year to 20–32% dry weight (DW) of second year; DeVries and ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 75–104 : Auteur(s): Azzali, M., I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi

7. WG-FSA-02

   List of documents WG-FSA-02/30 Progress report on attempts to conduct an experiment on the ... . Constable, R. Williams and T. Lamb (Australia) WG-FSA-02/71 An update on conversion factors for toothfish in ... documents Doc Number Title WG-FSA-02/1 Provisional and Annotated Provisional Agenda for the 2002 Meeting of ... Summary of an observation aboard a pot vessel operating in the Convention Area during the 2001/02 season ...

   Meeting

8. TARGET STRENGTH STUDIES ON ANTARCTIC SILVERFISH (PLEURAGRAMMA ANTARCTICUM) IN THE ROSS SEA

   Antarctic Silverfish, ranging in length from 90 to 210 mm, by means of an underwater framework with a ... study may influence the result. For example, some authors suggested that freezing the fish reduce the ... over-all backscatter of 30% (Sun et al. 1985), others that TS measurements on living fish ex situ would ... place (Ona, 1990), making comparisons difficult. For those reasons theoretical models have been thought ...

   Meeting Document : SG-ASAM-09/10 : Auteur(s): M. Azzali, I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi (Italy)

9. e-cc-xxv.pdf

   ... numbers over the past 20 to 30 years and that winter sea-ice conditions had opposite effects on these two ... Notifications for new and exploratory fisheries in 2006/07............................. 41 Review of potential ... Commission. Examination of audited Financial Statements for 2005 3.2 Noting that a review audit had been ... the CCAMLR website in the four official languages of CCAMLR. Review of budget for 2006 3.9 The application/pdf attached to:CCAMLR-XXV

   Meeting Report : CCAMLR-XXV

10. Quantification of Southern Ocean phytoplankton biomass and primary productivity via satellite observations and biogeochemical models (submitted to the 2008 Joint CCAMLR-IWC Workshop)

    blooms is presented for the major provinces surrounding Antarctica. Some of the published information ... regarding phytoplankton species composition and succession is summarised. A review of ecosystem and ... biogeochemical models for the Southern Ocean is presented, with a focus on those models that have been validated ... /06, an interdis- ciplinary survey was conducted of East Antarctica (30°E to 80°E). The suite of ... blooms is presented for the major provinces surrounding Antarctica. Some of the published in- formation ... this review, the term ‘model’ is reserved for biogeochemical simulations, and ‘algorithm’ is used to ... ) data as input. Note the close match in the modelled and observed estimates for each of the six years ...

    Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 247–265 : Auteur(s): P.G. Strutton, N.S. Lovenduski, M. Mongin and R. Matear

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