Search results
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Estimating prey consumption of the non-breeder component of an Adélie penguin population
Abstract: Estimating the consumption of prey by higher-order predators is a priority for WG-EMM ... Southern Ocean. Previous assessments of prey consumption for seabirds have focussed on breeders using data ... recorded at the breeding colonies. However, recent work suggests that the size of the non-breeder component ... of an Adélie penguin population can be substantial compared with the size of the breeder population ...
Meeting Document : WG-EMM-17/12 : Author(s): L. Emmerson and C. Southwell
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Research plan for the Spanish exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2: Update of stage 2 (2013/14 season) and preliminary results of stage 1 (2012/13 season) according to WG-SAM advice
Abstract: A revision of the research plan and preliminary results of the Spanish exploratory ... completed in each of the SSRU surveyed (58.4.1H and 58.4.1G). Three prospecting-phase clusters of sets did ... not reach the threshold to start the depletion. A new prospective estimation of the local biomass (B ... LOC) of the two localized areas where the depletion experiments were performed is done as well as an ...
Meeting Document : WG-FSA-13/15 : Author(s): R. Sarralde, L.J López Abellán and S. Barreiro (Spain)
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Revised reports on abundance and biological information of toothfish in Division 58.4.3b by Shinsei Maru No.3 in 2010/11 and proposal of the consecutive survey in 2011/12
of toothfish in the southeast sector (24 allocated hauls) of Division 58.4.3b (BANZARE Bank), using a ... made for 5 hauls. Total catch (excluding fish released alive) of Dissostichus spp. and other bycatch ... species was 12.0 ton in the SE sector, where the catch limit of 15 ton was set. Mean CPUE of Dissostichus ... survey, although there was no significant difference. Total of 62 individuals of toothfish with good ...
Meeting Document : WG-FSA-11/13 Rev. 1 : Author(s): K. Taki, T. Iwami and M. Kiyota (Japan)
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Results of the sixth Ross Sea shelf survey to monitor abundance of sub-adult Antarctic toothfish in the southern Ross Sea, January 2017
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... this paper we provide results of the sixth 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-17/01 : Author(s): K. Large, L. Robinson and S. Parker
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Metabarcoding analysis of the stomach contents of the Antarctic toothfish (Dissostichus mawsoni) collected in the Antarctic Ocean
Abstract: Stomach contents of the Antarctic toothfish, Dissostichus mawsoni, collected from ... the raw reads generated by the MiSeq platform, a total of 131,233 contigs (130 operational taxonomic ... , indicating the quality of the DNA barcode database for the Antarctic Ocean was sufficient for molecular ... analysis, especially for fish species. A total of 19 species was identified from the stomach of D. mawsoni ...
Meeting Document : WG-FSA-17/P03 : Author(s): T.-H. Yoon, H.-E. Kang, S. R. Lee, J.-B. Lee, G. W. Baeck, H. Park and H.-W. Kim
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PRELIMINARY RESULTS OF THE EXPERIMENT ON DEFINITION OF ANTARCTIC KRILL MORTALITY RATE IN FISHERY
Abstract: Two successful experiments on definition of Antarctic krill mortality have been carried ... . Approximately 230 to 130 kg of krill are percolated and punched through per an hour of trawling if the average ... catch per an hour of trawling is about 8 tons and towing speed is 2.6-2.7 knots. The key parameters of ... trawling which influence the value of the Antarctic krill mortality rate are: the trawl configuration and ...
Meeting Document : WG-EMM-11/15 : Author(s): L. Pshenichnov and K. Vyshniakova (Ukraine)
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Preliminary results of age determination of the Dissostichus spp. from the longline catches in 48.2 Subarea (2015, SIMIIZ)
Abstract: Age determination of the Patagonian (Dissostichus eleginoides) and Antarctic toothfish ... the Ukrainian vessel “Simeiz” in the Northern part of Weddell Sea (statistical Subarea 48.2) in March ... 2015. 124 otolith pairs of Dissostichus mawsoni and 87 otolith pairs of Dissostichus eleginoides were ... sampled; one otolith from each pair was used for age determination. Preliminary results of age ...
Meeting Document : WG-FSA-15/46 : Author(s): Delegation of Ukraine
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The proposal of Availability Index to summarise the availability of harvested resources
Abstract: The solution of problems of conservation the Antarctic marina living resources and, at ... the same time, maintenance of their rational use, requires possession of up-to-date information that ... summarized availability of each harvested species of resources for human use. In connection with this it is ... information on availability of the specific marina living resources for fishery. The availability index can be ...
Meeting Document : WG-EMM-16/57 : Author(s): K. Demianenko and G. Milinevskyi
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Stable isotope analysis of Southern Ocean fish tissue samples to investigate trophic linkages of Antarctic toothfish (Dissostichus mawsoni)
to determine C and N stable isotope composition. Values of?15N and?13C suggested that a minimum of ... Atlantic, and sperm whales from the Gulf of Mexico. There was high variance in?15N and?13C values for each ... of the species sampled, on the order of 3-4 ‰ for?15N (which equates to one trophic level) and 4 ... ‰ for?13C (suggesting multiple primary sources of organic matter). For each species where sufficient ...
Meeting Document : WG-EMM-07/19 : Author(s): M.H. Pinkerton, S. Bury, S.M. Hanchet and D. Thompson (New Zealand)
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Changes in biomass of eight species of finfish around the South Orkney Islands (Subarea 48.2) from three bottom trawl surveys
Abstract: Stocks of finfish around the South Orkney Islands (Subarea 48.2) suffered substantial ... trawl surveys of finfish biomass within the 500 m isobath of the South Orkney Islands have been ... conducted by the Federal Republic of Germany in 1985, Spain in 1991, and the United States in 1999 ... . Estimates of total stock biomass were computed for eight species that comprised 98% of survey nominal catch ...
Meeting Document : WG-FSA-99/32 : Author(s): C.D. Jones (USA), K.-H. Kock (Germany) and E. Balguerías (Spain)