Search results
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Semi-empirical acoustic estimates of krill biomass derived from simulated commercial fishery data based on single-frequency acoustics
models of krill biomass, at 120 kHz frequency that can be used to augment research acoustic surveys if ... fishing seasons. From these data we develop semi-empirical indices of acoustic biomass in a Generalized ... Linear Modeling framework. We correlate these estimates of biomass with acoustic estimates derived from ... Elephant Island and West Shelf Areas of the US AMLR survey grid. Cross-validation of acoustic estimates ...
Meeting Document : SG-ASAM-15/03 : Author(s): A.M. Cossio, G.W. Watters, C.S. Reiss, J. Hinke and D. Kinzey (USA)
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Report on the activities of the Scientific Committee on Antarctic Research (SCAR) 2005/06SCAR Observer to CCAMLR
on marine acoustic studies at the University of Cadiz, Spain in January 2006. A summary is provided ... directly to CCAMLR or are of potential interest to CCAMLR. This includes a report on the SCAR XXIX ... and Biodiversity in the Antarctic (EBA) and the Census of Antarctic Marine Life (CAML) projects. CAML ... for CCAMLR. The activities of the Expert Groupss of Birds and Seals are summarised, as well as new ...
Meeting Document : CCAMLR-XXV/BG/22 : Author(s): SCAR Observer to CCAMLR(G. Hosie, Australia)
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A study of UK and Russian surveys using acoustics to augment trawling methods in shelf waters off South Georgia (Subarea 48.3)
Abstract: In 2001/2002 Russian and UK vessels undertook surveys for icefish at South Georgia ... differences between the surveys and discuss how much of the variation between the vessels was due to ... differences in the gear used and how much was due to natural spatial/temporal variability of the stock. The ... portion of icefish biomass was located in the water column. Thus the traditional approach of using bottom ...
Meeting Document : WG-FSA-02/56 : Author(s): S. Kasatkina, P. Gasyukov (Russia), C. Goss, I. Everson, M. Belchier, T. Marlow, A. North and M. Collins (United Kingdom)
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Stock structure of Antarctic toothfish in Statistical Area 88 and implications for assessment and management
Abstract: We review the stock structure of Antarctic toothfish in Statistical Area 88 with the ... aim of characterising the likely stock boundaries relative to stock assessments. We include ... biological stocks with limited mixing, especially at adult stages: a Ross Sea Region stock and an Amundsen ... complex of SSRU 88.2H. Key information needs to further understand stock structure include characterising ...
Meeting Document : WG-SAM-14/26 : Author(s): S.J. Parker, S.M. Hanchet and P.L. Horn (New Zealand)
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To the question for bioregionalisation of the Antarctic waters with ecosystem approach
and food chains. At the same time naturel boundary, in the form of the Antarctic Convergence (AC) in ... Abstract: The nature of the composition (structure) and distribution Antarctic marine living ... resources to determine by position of the South Ocean and originaly it's geographic isolation unity ... Carrent sistem (ACC), but to circumpolar distribution of the whales, seals, seabirds, fishes, squids ...
Meeting Document : SC-CAMLR-XXV/BG/18 : Author(s): Delegation of Russia
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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