Résultats de la recherche

1. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2013–14

   Abstract:  This report summarises the timing, depth, and location of fishing together with the ... 12 years with a slight decline in the past two years. Length frequency distributions of Antarctic ... toothfish in the Ross Sea fishery have continued to be stable in the North and variable on the Shelf. The ... present in the 2014 season, and the size composition in 2014 was more similar to that in the early period ...

   Meeting Document : WG-FSA-14/52 : Auteur(s): M. Stevenson, S. Hanchet, S. Mormede and A. Dunn (New Zealand)

2. Update to recruitment series for Patagonian toothfish in the Heard Island region

   , consistent with the observations from 1999. A reanalysis of all survey data from the region has shown that ... will be required. Author(s):  A. Constable, R. Williams, T. Lamb and E. van Wijk (Australia) Title ... older cohorts are likely to be distributed more widely than the shallow part of the Heard Plateau ... toothfish smaller than 450 mm are likely to be found predominantly in the shallow part of the Heard Plateau ...

   Meeting Document : WG-FSA-00/42 : Auteur(s): A. Constable, R. Williams, T. Lamb and E. van Wijk (Australia)

3. Preliminary reports on abundance and biological information of toothfish in Division 58.4.3b by Shinsei Maru No. 3 in the 2011/12 and proposal of the consecutive survey in the 2012/13

   safety of voyage. Shinsei Maru Trot line system with modified configurations was used as fishing gear for ... 16 hauls. Mean CPUE of Dissostichus spp. was 52.2 kg / km (CV = 107 %). This was identical with the ... mean CPUE of 51.8 kg / km in the 2010/11 survey. Total of 51 individuals of toothfish with good ... recaptured. Fish with good physical condition and single-hooked contributed 26-39 % to the total fish caught ...

   Meeting Document : WG-SAM-12/15 Rev. 1 : Auteur(s): K. Taki, T. Iwami, M. Kiyota and T. Ichii (Japan)

4. Modelling egg and larval transport of Antarctic toothfish (Dissostichus mawsoni) in the East Antarctic region: preliminary result using satellite data

   Abstract:  Using two different surface geostrophic filed data (A-1: without and A-2: with temporal ... significant difference is that some particles reached southern shelf-slope zone (nursery ground) in the ... of the particles were stopped by entering the inner shelf region (nursery ground). We showed that ... particles released from the ridge, rise in oceanic region and some parts in the northern slope can be ...

   Meeting Document : WG-FSA-2019/63 : Auteur(s): M. Mori, K. Mizobata, T. Okuda and T. Ichii

5. Competition-mediated prey availability drives Adélie penguin (Pygocelis adeliae) chick size, mass and condition at colonies of differing size in the southern Ross Sea

   foraging.  In addition, we show that in some cases, increased intraspecific competition may be a more ... populations.  Body size, mass and condition may be important determinants of an organism’s ability to survive ... periods of low resource availiability or high metabolic demand.  Such effects may be particularly ... presence of two giant icebergs from 2001 to 2005 increased sea ice concentrations, reducing adult foraging ...

   Meeting Document : WG-EMM-13/31 : Auteur(s): A.L. Whitehead (Australia), P. O’B. Lyver (New Zealand), G. Ballard (USA), K. Barton, B.J. Karl (New Zealand), D.G. Ainley, K. Dugger, S. Jennings (USA), A. Lescroël (France) and P.R. Wilson (New Zealand)

6. A three-frequency method to determine the abundance and the size of two euphausiid species (Euphausia superba and Euphausia crystallorophias)

   integration method. This implies that species can be identified indirectly, from visual analysis of echograms ... that organisms must occur in low concentrations and echo level from a single organism must be greater ... -February 2001. The results are compared with those obtained from the standard method. Author(s):  M. Azzali ... abundance of the two populations can be estimated by single-frequency acoustics, using the standard echo ...

   Meeting Document : WG-EMM-01/63 : Auteur(s): M. Azzali, J. Kalinowksi, G. Lanciani and I. Leonori (Italy)

7. A multivariate approach to examining patterns in research fishing activities using the SSRU 88.2A–B North survey as an example

   criteria to assess the likelihood that a vessel is operating as would be expected in normal research ... activities”, further noting that a characterisation of fishing activities was also required in order to ... the time taken to haul a line as a metric, and estimate vessel effects associated with fishing events ... such as research surveys. Results showed that individual vessels exhibited significantly different ...

   Meeting Document : WG-FSA-16/46 : Auteur(s): S. Mormede, A. Dunn, S.J. Parker, T. Earl, C. Darby, M. Söffker and O.R. Godø

8. A statistical method for analysing the extent of IUU fishing in CCAMLR waters: application to Subarea 48.3

   estimate the total number of days of IUU fishing that could occur during each year. For each IUU incident ... occurred. This was the time that elapsed between the FPV cruises that were immediately prior to and ... immediately subsequent to the incident, where these prior and subsequent cruises had not detected that same ... time that the vessel can have been present. 3. This theoretical maximum time was converted to actual ...

   Meeting Document : WG-FSA-02/4 : Auteur(s): D.J. Agnew and G.P. Kirkwood (United Kingdom)

9. Informe de la campaña de investigación biológico-pesquera de palangre de fondo en aguas del Atlántico sur-oriental y en los sectores Atlántico e índico de la CCRVMA (Subárea 48.6 y División 58.4.4)

   be related to the beginning of migratory movements that make them inaccessible to fishing with bottom ... to increase length with depth seems to be somehow disturbed by inflections or alterations related to ... stratum with highest catch per unit effort was that of 600-800 m though absolute values varied between ... toothfish (D. eleginoides) with 2822 individuals (83.24 %). Macrourus carinatus was the second species in ...

   Meeting Document : WG-FSA-98/48 : Auteur(s): L.J. López Abellán y J.F. González Jiménez

10. Morphometrics, maturity and movement of the Antarctic skates Amblyraja georgiana and Bathyraja eatonii in the Ross Sea

    . The regressions for these species should be used with caution. The length at 50% maturity for male A ... sexes combined. It is probable that large females are larger and heavier than males of the same size ... length at 50% maturity of male and female B. eatonii could not be accurately determined, but may be ... -area 88.1 over the 1999–2000 through 2001–02 seasons. Returns suggest some long-term survival, small ...

    Meeting Document : WG-FSA-02/42 : Auteur(s): M.P. Francis and N.W. McL. Smith (New Zealand)

Pages