Résultats de la recherche

1. Preliminary results from a krill net sampling survey in CCAMLR Area 48.1 in 1989/90 season

   Abstract:  In December 1989/January 1990 main krill concentrations along the Antarctic Peninsula ... occurred NE and SE of Elephant Island, north of the South Shetland Islands, in the central Bransfield ... Strait and in the SW shelf waters. Mean biomass was 10.1 tonnes per nautical square mile, i.e. an ... estimated stock biomass of 950,000 tonnes. The zooplankton, however, was dominated by salps in the entire ...

   Meeting Document : SC-CAMLR-IX/BG/09 Rev. 1 : Auteur(s): Delegation of EEC

2. Age and growth in length of Micromesistius australis, Norman, 1937 (Pisces, Gadidae), in the southern zone of the Argentine Sea

   australis, caught in waters of the southern Argentine Sea during the cruises made by the ships Walther ... Herwig and Shinkai Marú in agreement with the Argentine Republic, in the years 1978 and 1978/79 ... )] giving Lt in cm and t in years. For the estimation of the general equation parameters the first 15 age ... classes in males and the first 21 in females were taken into account. The theoretical Lt values ...

   Meeting Document : SC-CAMLR-V/BG/31 : Auteur(s): Delegation of Argentina

3. Annual changes in species composition and abundance of myctophid fish in the north of South Georgia (CCAMLR Subarea 48.3), Antarctica, during austral winter from 2002 to 2008

   bycatch samples collected by scientific observers onboard Japanese commercial krill fishing vessels in the ... total of 9 myctophid species were identified in the by-catch samples, among which Krefftichthys ... mesopelagic ichthyofauna in this area, though this species used to dominate in the Antarctic coastal waters ... . In contrast, P. choriodon, which is known as a temperate species, became to dominate the recent ...

   Meeting Document : WG-EMM-10/22 : Auteur(s): T. Iwami, M. Naganobu, K. Taki and M. Kiyota (Japan)

4. Results of the Spanish exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2 in the 2013/14 season

   year of the multi-year research survey in Divisions 58.4.1 and 58.4.2,  the F/V Tronio has returned to ... the same places surveyed in the 2012/13 season, as well as expanded the experience westwards to the ... that was visited for the commercial Spanish fleet along five seasons in the SSRU 58.4.1C is made ... , together with the estimation of the total Biomass in the entire SSRU using a depletion model. There have ...

   Meeting Document : WG-SAM-14/12 Rev. 1 : Auteur(s): R. Sarralde, L.J. López-Abellán and S. Barreiro (Spain)

5. Research plan for exploratory fishing for toothfish (Dissostichus spp.) in 2016/17 in Division 58.4.1 by France

   Abstract:  Exploratory fishing for toothfish (Dissostichus spp.) in Division 58.4.1 began in 2003 ... this Division. France notifies its wish to collaborate in this research fishery with the other ... participants over the coming years in order to participate in the tagging program and achieve a robust stock ... Conservation Measure 41-11. The biomass for each in the Division was estimated during WG-FSA 2015 using CPUE x ...

   Meeting Document : WG-SAM-16/01 : Auteur(s): Delegation of France

6. Contrasting population changes in sympatric penguin species in association with climate warming

   Abstract:  Climate warming and associated sea ice reductions in Antarctica have modified habitat ... demonstrate remarkable population responses to regional warming. However, inconsistencies in the direction of ... ice adapted gentoo penguins increased significantly in numbers over the last 26 years, whereas ... chinstrap and Adélie penguins both declined. These trends occurred in parallel with regional long-term ...

   Meeting Document : WG-EMM-06/P3 : Auteur(s): J. Forcada, P.N. Trathan, K. Reid, E.J. Murphy and J.P. Croxall (United Kingdom)

7. Food and feeding of two Channichthyids, Champsocephalus gunnari and Chaenocephalus aceratus, around Elephant Island and in the South Shetland Islands (Subarea 48.1) in 2001 and 2002

   Chaenocephalus aceratus, were collected in the Elephant Island – South Shetland Islands region during the AMLR ... cruise in March 2001 with RV ‘Yuzhmorgeologiya’ and ANTXIX/3 in January – February 2002 with RV ... ‘Polarstern’. C. gunnari fed almost exclusively on krill (Euphausia superba) in both years. C. aceratus fed on ... abundant fish species which were G. gibberifrons in 2001 and L. larseni and C. gunnari in 2002. Author(s ...

   Meeting Document : WG-FSA-02/73 Rev. 1 : Auteur(s): H. Flores, K.-H. Kock, S. Wilhelms (Germany) and C.D. Jones (USA)

8. Trends in mean lengths and selectivities for Dissostichus eleginoides taken by longliners in Subarea 48.3

   Abstract:  At its last meeting, WG-FSA noted a declining trend in the mean lengths of toothfish ... found the same declines in mean lengths for the period 1997 – 1999 as previously noted by WG-FSA, but ... also that this trend was halted in 2000. A GLM analysis of these data shows that both area and depth ... are highly significant factors in explaining part of this variation over time, but not all of it ...

   Meeting Document : WG-FSA-01/48 : Auteur(s): G.P. Kirkwood and D.J. Agnew (United Kingdom)

9. Estimation of toothfish distribution and population size in Subarea 88.3 by results of research longline fishing in 2011–2012

   Abstract:  In 2011 and 2012 in Subarea 88.3 Russian longliners “Sparta” and ‘Chio Maru 3 ... set at a depth from 625 to 2336 m. Total number of set hooks amounted 171096. In 2011 research fishing ... covered SSRU B, C and D. In 2012 ice conditions were much worse and longlines were set only in SSRU C ... biology in this Subarea. (SC-CCAMLR-XXX/5, par. 2.26-2.29). Author(s):  V.A. Tatarnikov, I.G. Istomin and ...

   Meeting Document : WG-SAM-12/20 : Auteur(s): V.A. Tatarnikov, I.G. Istomin and V.V. Akishin (Russia)

10. Molecular and morphological identification of Macrourus species caught as by-catch in the toothfish longline fisheries in CCAMLR Subareas 48.3 and 48.4.

    Abstract:  Genetic identification of grenadiers taken as bycatch in the toothfish longline fishery ... in the ability to morphologically distinguish between M. carinatus and M. holotrachys. Four species ... of Macrourus were identified genetically in the Southern Ocean and confirmed the presence of a ... Northern hemisphere species, M. berglax. There is a clear latitudinal separation of Macrourus species in ...

    Meeting Document : WG-FSA-12/35 : Auteur(s): E. Fitzcharles, K. Brigden, S. Gregory, M. Belchier and J. Brown (United Kingdom)

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