Search results
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A study of Patagonian toothfish (Dissostichus eleginoides) post tagging survivorship in Subarea 48.3
, and then were kept in tanks with varying degrees of seawater replacement for at least 12 hours after ... Abstract: During the 2005 fishing season experiments on the survivorship of post-tag toothfish ... tagging. On one vessel fish with a variety of injuries were selected to see if this affected recovery. 395 ... animals were included in the final analysis, with an overall survivorship of 89%. There were significant ...
Meeting Document : WG-FSA-05/19 : Author(s): D. J. Agnew, J. Moir Clark, P.A. McCarthy, M. Unwin, M. Ward, L. Jones (United Kingdom), G. Breedt, S. Du Plessis, J. Van Heerdon (South Africa) and G. Moreno (Spain)
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Spatial distribution and population structure of juvenile Antarctic toothfish (Dissostichus mawsoni) in the South Shetland Islands (Subarea 48.1)
between 22 and 78 cm TL, equally distributed between sexes, most of them with gonads at immature stage of ... structure of juvenile D. mawsoni caught during bottom trawl survey on the shelves around the South Shetland ... abundant between 100 and 300 m depth. The sampled population was composed of 150 specimens measuring ... factor. Based on counts of annual growth increments from sagittal otolith sections, age estimates ranged ...
Meeting Document : WG-FSA-18/45 : Author(s): M. La Mesa, E. Riginella and C.D. Jones
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Sampling toothfish from longlines with unequal probabilities
number of baskets taken while hauling a line, observers can use this to establish a point at which to ... Abstract: To obtain a representative sample of the catch taken by toothfish longliners, CCAMLR ... observers are recommended to sample a quota of the first 30 fish that are caught during a sampling session ... unequal probabilities which, if unaccounted for, can lead to serious biases in estimates of population ...
Meeting Document : WG-FSA-03/85 : Author(s): J.R. Ashford (USA)
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Results of the seventh Ross Sea shelf survey to monitor abundance of Antarctic toothfish in the southern Ross Sea, January 2018, and notification for research in 2018/19
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... this paper we provide results of the seventh annual survey in the time series. The objectives of this ... survey included monitoring sub-adult (≤ 110 cm TL) toothfish in the south of SSRUs 881.J and 881.L in the ... larger (large sub-adult and adult) toothfish in two areas (both situated in SSRU 881.M) of importance to ...
Meeting Document : WG-SAM-18/10 : Author(s): D. Stevens, X. Fu, S. Mormede and S. Parker
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Benthos by-catch study and benthic cameras deployment during the Poker 4 fish biomass survey for habitat characterisation in the Kerguelen Plateau
Abstract: The Muséum national d’Histoire naturelle presented at the 2017 EMM Working Group of the ... CCAMLR a new data acquisition protocol for benthos bycatch in the French fisheries of the Southern Ocean ... protocol is based on the sampling of specimens and the weighing and photographic sampling of the whole ... developed by the MNHN, allowing to increase by 86.3 % the quantity of occurrences of organisms within the ...
Meeting Document : WG-EMM-18/20 : Author(s): A. Martin, J. Blettery, N. Améziane and M. Eléaume
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CCAMLR’s role in combating IUU fishing in the Southern Ocean and globally
, while not weakening any of its current measures in force. At the same time, and in the spirit of ... Abstract: Abstract The persistence of IUU fishing in the CCAMLR Area undermines the intrinsic ... values of CCAMLR and of the Antarctic Treaty. Thus, eliminating IUU fishing must continue to be a top ... priority for CCAMLR as an integral part of the Antarctic Treaty System. Thus far, in spite of the number of ...
Meeting Document : CCAMLR-XXIX/BG/20 : Author(s): ASOC Observer
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Estimates of circumpolar abundance of Antarctic krill based on recent acoustic density measurements
tonnes- at the low end of values that have been suggested in the past. The differences between our ... Paper Title: Estimates of circumpolar abundance of Antarctic krill based on recent acoustic ... density measurements Abstract / Description: The total circumpolar abundance of Antarctic krill ... (Euphausia superba) is estimated using recent measurements of krill density from acoustic surveys and ... range of krill. The biomass estimates fall between 60 and 155 million tonnes - at the low end of values ... scientific data was used to arrive at a total estimate of krill biomass of 272 million tonnes (Voronina ... and abundance of krill, mainly at a local scale (Azzali, 1992; Hewitt and Demer, 1994; Pauly and ... most commercial stocks of marine living resources are either overexploited or are at the limits of ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 87–99 : Author(s): Nicol, S., A.J. Constable and T. Pauly
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Review of the 2003 budget, draft 2004 budget and forecast budget for 2005
Abstract: This paper presents, for consideration by the Commission, the projected outcome of the ... budget for 2003, a draft of the 2004 budget and an indicative forecast for 2005, presented in a format ... determined by the Commission at its 2002 Meeting. The 2003 budget is currently expected to be met, with a ... recommendation that an unbudgeted surplus of A$8 010 from 2002 be used to increment the Contingency Fund. A new ...
Meeting Document : CCAMLR-XXII/04 : Author(s): Executive Secretary
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Comparison of equal-area cylindrical and circular piston transducers
manufacturer at a total of 11 frequencies spanning the range 27-710 kHz. Nominal power levels assigned to the ... Abstract: Design of sondes for in situ measurement of zooplankton or other scatterers requires ... choosing among alternative transducer geometries. This contribution addresses the problem of choosing ... between cylindrical and circular piston transducers by comparing the performance of the two according to ...
Meeting Document : WG-EMM-95/08 : Author(s): Foote, K.G.
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The random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the waters surrounding Heard Island (Division 58.5.2) for 2017
Abstract: The annual random stratified trawl survey (RSTS) of 2017 at HIMI was conducted during ... April, with the completion of 163 stations. The survey has been conducted on the FV Atlas Cove since ... 2015. Sampling protocols such as the design and the duration of the hauls were similar to recent ... surveys, but with a new set of randomly selected station points. The unstratified density of Dissostichus ...
Meeting Document : WG-FSA-17/14 Rev. 1 : Author(s): G.B. Nowara, T.D. Lamb and P. Ziegler