Resultados de la búsqueda
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Preliminary results on the composition and abundance of the krill stock in the southern Bellingshausen Sea (Antarctic, CCAMLR Subarea 88.3)
recruitment success of the 1992/93 year-class in the region (R1 = 0.076). Both results indicate large scale ... south of 66°S, between 68°W and 120°W. Krill Euphausia superba abundance and biomass was in the lower ... range of values generally found in the Antarctic Peninsula and Elephant Island region. A distinct ... spatial separation for size groups was observed for krill, with small size groups being more abundant in ...
Meeting Document : WG-EMM-95/18 : Autor(es): Siegel, V.
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Gentoo penguin Pygoscelis papua diet as an indicator of planktonic availability in the Kerguelen Islands
, we investigated the composition of the diet of gentoo penguins, Pygoscelis papua, in relation to ... changes in the availability of two prey species, Euphausia vallentini and Themisto gaudichaudii, sampled ... during plankton surveys in the Kerguelen Islands. The comparison between plankton surveys and diet ... similar but the size distribution showed comparatively fewer small and large individuals in net-hauls than ...
Meeting Document : WG-Joint-94/11 : Autor(es): C.A. Bost, P. Koubbi, F. Genevois, L. Ruchon and V. Ridoux (France)
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Estimates of primary production by ice algae and phytoplankton in the coastal ice-covered area near Syowa Station, Antarctica
Station (69°00'S, 39°35'E), Antarctica, was estimated. Mean daily production in each month from ... -2 h-1 in June to 13.3 E m-2 h-1 in December. Relative light intensity estimated at the bottom of sea ... ) was reached in December and in February, respectively. The estimated annual production of ice algae ... phytoplankton production contributed remarkably to the primary production in the coastal ice-covered area near ...
Meeting Document : WG-KRILL-93/28 : Autor(es): H. Satoh, K. Watanabe and T. Hoshiai (Japan)
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Characteristics of oceanic structure in the waters around the South Shetland Islands of the Antarctic ocean between December 1990 and February 1991: outstanding coastal upwelling?
Abstract: The sixth Antarctic survey cruise of R/V Kaiyo Maru was carried out in waters around ... austral summer. In order to investigate seasonal changes in oceanic structure. two observations were put ... into operation In the same area after an interval of 40 days. The more characteristic change was ... clearly recognized in the waters of the insular shelf from the first leg to the second leg. The Antarctic ...
Meeting Document : WG-KRILL-92/24 : Autor(es): M. Naganobu, T. Katayama, T. Ichii, H. Ishii and K. Nasu (Japan)
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Towards a Minimum Realistic Model for investigating trophic relationships between Antarctic toothfish and demersal fish in the Ross Sea, Antarctica
in the Ross Sea, Antarctica. These demersal fish are known to form a part (in some cases a ... changes in the abundances of these four demersal fish prey/bycatch groups in the Ross Sea are possible ... , and what changes in the trophic relationships between Antarctic toothfish and these prey groups may ... be presented to CCAMLR in due course. Author(s): M.H. Pinkerton, S. Mormede and S.M. Hanchet (New ...
Meeting Document : WG-SAM-10/21 : Autor(es): M.H. Pinkerton, S. Mormede and S.M. Hanchet (New Zealand)
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Results of the longline survey for toothfish in the northern Ross Sea region (Subarea 88.2 SSRUs A–B) by the FV Janas, New Zealand
Abstract: New Zealand FV Janas conducted research in two research blocks (882A_5 and 882B_4) as ... toothfish populations in the northern areas (60°‑ 66° S) of Subarea 88.2 SSRUs A–B. Sampling strategy and ... data collection adhered to standards set in CM 41-10 (2014). A total of 49.85 t of Antarctic toothfish ... maturity status were similar to existing data from SSRU 88.1C. In contrast, the gonadosomatic index and the ...
Meeting Document : WG-SAM-15/46 : Autor(es): S.J. Parker, R.J.C. Currey and S. Mormede (New Zealand)
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New data acquisition protocol for benthos by-catch in the French fisheries of the Southern Ocean, presentation of the protocol and first preliminary results
Abstract: In 2015, the Muséum national d’Histoire naturelle has started to develop a new data ... acquisition protocol for benthos bycatch in the French fisheries of the Southern Ocean (statistical areas ... knowledge on the benthic ecosystems impacted by the French fishing activities, in a context marked by the ... Areas (MPA) development and in the short term to decrease this impact. The protocol is based on ...
Meeting Document : WG-EMM-17/09 : Autor(es): A. Martin, M. Eléaume, N. Améziane, P. Pruvost and G. Duhamel
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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 ... -based population age structure in a spatially explicit manner. The model is parameterised by both ... . Comparisons with expected output from CASAL and movement processes coded in S+/R were essentially identical ... , and estimates of example parameters for models implemented in both CASAL and SPM gave essentially ...
Meeting Document : WG-SAM-08/14 : Autor(es): A. Dunn and S. Rasmussen (New Zealand)
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Comparison of Champsocephalus gunnari catches in Subarea 48.3 from1994–97 and 2013 cruises
Abstract: The local densities of Champsocephalus gunnari observed in the 2013 survey are ... compared with those observed in 1994-1997. A significant increase in densities across 24 sites previously ... in the early 1990’s was due to recruitment collapse, probably a consequence of overfishing. Author(s ... ): E. Marschoff and P. Martínez (Argentina) Title: Comparison of Champsocephalus gunnari catches in ...
Meeting Document : WG-FSA-13/65 : Autor(es): E. Marschoff and P. Martínez (Argentina)
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Size-age composition and growth of Antarctic toothfish Dissostichus mawsoni in the Weddell Sea
Abstract: In the fishing season 2012/2013 Russian vessel “Yantar-35” worked in the Weddell Sea ... area on biology of this species. In particular, size-age and growth samples of the Antarctic toothfish ... were collected in this sea. Author(s): E.N. Kyznetsova, A.F. Petrov and I.I. Gordeev (Russia) Title ... : Size-age composition and growth of Antarctic toothfish Dissostichus mawsoni in the Weddell Sea Approval ...
Meeting Document : WG-FSA-13/16 : Autor(es): E.N. Kyznetsova, A.F. Petrov and I.I. Gordeev (Russia)