Résultats de la recherche
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Proposed methodology for the assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank (Division 58.4.3b)
Abstract: In 2006 the CCAMLR scientific committee noted several features of exploratory ... Dissostichus fisheries in the southern Indian Ocean (58.4) which gave cause for concern as to the status of the ... resource in this area, and the lack of a scientific basis for setting catch limits in these areas (SC-CAMLR ... Scientific Committee requested urgent consideration by Members on of methods for collecting of data and of ...
Meeting Document : WG-SAM-07/8 : Auteur(s): D.C. Welsford, A.J. Constable and G.B. Nowara (Australia)
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ECOLOGICAL REPERCUSSIONS OF HISTORICAL FISH EXTRACTION FROM THE SOUTHERN OCEAN
Abstract: A major mid-1980s shift in ecological structure of significant portions of the Southern ... Ocean was partially due to the serial depletion of fish by intensive industrial fishing, rather than ... stocks were on average reduced to <50%, and finally (mid-1980s) to <20%, of original size. Despite ... strong year classes, as is true of such fish elsewhere. A climate regime, the Southern Annular Mode, once ...
Meeting Document : WG-EMM-08/P07 : Auteur(s): D. Ainley and L. Blight
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Species variability and population structure of Euphausiacea in Admiralty Bay (King George Island; South Shetland Islands) during Antarctic summer
Abstract: The main component of zooplankton in Antarctic pelagic waters, apart from copepods or ... of the penguins and pinnipeds’ diet. Admiralty Bay, because of its specific hydrological conditions ... , is an interesting area for that kind of biological study. Moreover, King George Island, where ... Admiralty Bay is located, is a region of dynamic climate characterized by variable maritime conditions which ...
Meeting Document : WG-EMM-14/60 : Auteur(s): A. Panasiuk-Chodnicka, J. Wawrzynek and M. Iwona Żmijewska (Poland)
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Summary of the toothfish fishery and tagging program in the Ross Sea region (Subarea 88.1 and SSRUs 882A–B) through 2017/18
at liberty. Author(s): S. Mormede and S. Parker Title: Summary of the toothfish fishery and tagging ... SSRUs 88.2AB) together with biological characteristics of the catch of Antarctic toothfish through the ... 2018 season. Despite 2018 being the first year of implementation of the Ross Sea region Marine ... Protected Area, most of fishing effort was carried out in the historically fished areas. There was a small ...
Meeting Document : WG-FSA-18/46 : Auteur(s): S. Mormede and S. Parker
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Major fishery events in Kerguelen Islands: Notothenia rossii, Champsocephalus gunnari, Dissostichus eleginoides – current distribution and status of stocks
-sea stocks have been naturally protected at the beginning of 1990. It maintained a high amount of ... Abstract: The large-scale trawl exploitation targeting virgin stocks of marbled notothenia ... fishing fleet of the fishing grounds in the early 1970’s. The fishery shifted to icefish (Champsocephalus ... banks resulted in the sharp decline in the catches of marbled notothenia. The creation of the French EEZ ...
Meeting Document : WS-MPA-11/P04 : Auteur(s): G. Duhamel, P, Pruvost, M. Bertignac, N. Gasco and M. Hautecoeur
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Dynamics of Notothenia rossii rossii size-age structure on the Kerguelen Islands shelf
of the specialised fishery in 1985 and after the marbled rockcod by-catch at other fisheries was ... Abstract: Basing on materials of research expeditions and fishing cruises to the Kerguelen ... Islands shelf in the period from 1970 to 1991, dynamics of size- age structure of marbled rockcod ... used to characterise the age composition. It was determined that in the initial years of exploitation ...
Meeting Document : WG-FSA-94/04 : Auteur(s): P.B. Tankevich (Ukraine)
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Acoustic discrimination of southern ocean zooplankton
function analysis of differences between mean volume backscattering strength at 38, 120 and 200 kHz ... Abstract: Acoustic surveys in the vicinity of the sub-Antarctic island of South Georgia revealed ... the existence of a number of horizontally extensive yet vertically discrete scattering layers in the ... upper 250 m of the water column. These layers were fished with a LonghurstHardy plankton recorder (LHPR ...
Meeting Document : WG-EMM-97/54 : Auteur(s): Watkins, J.L., Brierley, A.S., Goss, C., Ward, P.
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Descriptive analysis of haul data from FV Atlantic Navigator in Elephant Islands (48.1), South Georgia Islands (48.3) and South Orkney Islands (48.3) krill fishery (summer 2004 to early winter 2005)
(early winter 2005) with a total of 251 days of effective fishing. Descriptive study of the fishery ... continuous fishing system with air-bubbling suspension and suction of capture (CFS). Individual haul data ... were analyzed to describe differentialy catch rates (catch per day and catch per minute) of the three ... different fishing zones studied. The total catch registered was 41837 tonnes: 50% of this capture was ...
Meeting Document : WG-EMM-05/12 : Auteur(s): O. Pin, H. Nión, E. Delfino and P. Meneses (Uruguay)
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An evaluation of reduced target strength estimates reported for krill (Euphausia superba)
between their target strengths and those of other investigators at 120 kHz. These target strength ... on the same experiment and report new calculations of the target strength of krill (Euphausia superba ... ) that propose questioning previous measurements of krill target strength and estimates of abundance ... assumptions made in calculating target strength. Whether the results of these papers are valid is critically ...
Meeting Document : WG-KRILL-90/13 : Auteur(s): M.C. Macaulay (USA)
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The annual random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2012
Abstract: The annual random stratified trawl survey at HIMI was completed in March to May of 2012 ... Ridge, Plateau Southeast and Plateau West, and in a repeat of the hauls in Ground B. Catches in this ... high as the long term average (2006-2011). The catches of Dissostichus eleginoides for 2012 were twice ... those of 2011 and about one and a half times higher than the long-term average. Champsocephalus gunnari ...
Meeting Document : WG-FSA-12/25 : Auteur(s): G.B. Nowara and T. Lamb (Australia)