Resultados de la búsqueda
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Trophic niche of the Antarctic toothfish caught in SSRU 88.3 as inferred from fatty acids and stable isotopes
Abstract: To highlight ontogenetic and geographical variability in resource utilization of ... of toothfish and their potential prey (bycatch and stomach contents), captured in fisheries in the ... Ocean sector of the Antarctica during 2012–2017. We found significant differences in size distributions ... of regional toothfish stocks, demonstrating an ontogenetic movement into deeper water from shelf ...
Meeting Document : WG-FSA-18/21 : Autor(es): C.-K. Kang, S.-G. Choi, H.Y. Kang, Y.-J. Lee, S. Chung and D.H. An
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SOME FIELD MATERIALS ON AREA AND SEASON OF ANTARCTIC TOOTHFISH SPAWNING
Abstract: On the results of some field materials collected from 2002 till 2008, on the basis of ... length composition analysis of individuals, weight of females’ gonads and sex ratio an attempt was made ... to select locations and periods of Antarctic toothfish mass spawning in some areas of the Pacific ... Ocean and Indian Ocean sectors of the Antarctic. In the Ross Sea area the most probable areas are the ...
Meeting Document : WG-FSA-08/14 : Autor(es): V. Prutko (Ukraine)
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Using spatial population models to investigate the effects of a proposed Marine Protected Area on Antarctic toothfish in the Ross Sea region
Abstract: One aim of Marine Protected Areas (MPAs) is to protect a representative portion of ... they usually involve the displacement of fisheries, their design rarely takes into account the effect ... of that fishery’s displacement on the target fish population. We used a spatially explicit population ... model of Antarctic toothfish in the Ross Sea region to investigate the effects of a proposed MPA on the ...
Meeting Document : WG-FSA-15/42 : Autor(es): S. Mormede, A. Dunn, S.J. Parker and S.M. Hanchet (New Zealand)
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Standardised CPUE analysis of Antarctic toothfish (Dissostichus mawsoni) fishery in the Ross Sea for the years 1997/98 to 2004/05
) since 1997 in CCAMLR Subareas 88.1 and 88.2. Previously, standardised analysis of toothfish CPUE (catch ... of data from the 2005 season for the Ross Sea (Subarea 88.1 and SSRUs 88.2 A–B) using data sets based ... of the period. We estimate indices using both lognormal generalised linear models and a Tweedie mixed ... addition to extreme ice conditions that limited where lines could be set. None of these factors were ...
Meeting Document : WG-FSA-05/32 : Autor(es): A. Dunn and N.L. Phillips (New Zealand)
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A feasibility study for stock assessment of D. mawsoni in the Ross Sea (Subares 88.1 and 88.2) using a tag and recapture experiment
purpose of stock assessment of the Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea. An ... fishery during the last 3 seasons. A good number of tag recoveries have been reported, mainly within the ... event. It is proposed to continue tag releases each season as part of the exploratory fishery for the ... purpose of determining the stock size of D. mawsoni and sustainable yields for the fishery. Ongoing annual ...
Meeting Document : WG-FSA-SAM 03/10 : Autor(es): K.J. Sullivan, N.W.McL. Smith, J. McKenzie and S.M. Hanchet (New Zealand)
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Biology, distribution and abundance of Antarctic krill (Euphausia superba) and by-catch
collected from 34 stations of fishing area 58 in Indian Ocean sector of Antarctic region between lat.57°53 ... Sampada for the study of biology, distribution and abundance. The samples were collected for a period of ... 18 days from 26th January to 12th February '96. Three types of gears were used viz. Isaacs Kidd ... most abundant size in the fishing area 58. The average sex ratio of male and female Euphausia superba ...
Meeting Document : WG-EMM-98/37 : Autor(es): A. Anrose, Z. Klusek, M.K.R. Nair and M. R. Bhoopendranath (India)
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Relationship between distribution of Antarctic krill (Euphausia superba) and environmental index MTEM-200 in the Antarctic Ocean throughout the year
Abstract: Antarctic krill (Euphausia superba) is the key species of the Antarctic marine ... the entire Antarctic Ocean. To clarify the relationship between krill distribution of krill and ... 2008 from the CCAMLR database. Another is accumulated water temperature data of the World Ocean ... depth. The peak of fishing catches clearly appeared around 50 m and 94% of all krill fishing catches ...
Meeting Document : WG-EMM-08/32 : Autor(es): M. Naganobu, T. Kitamura and K. Hasunuma (Japan)
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Bias in acoustic biomass estimates of Euphausia superba Dana to diel vertical migration
Abstract: The diel vertical migration of Antarctic krill (Euphausia superba) can greatly bias the ... results of qualitative and quantitative hydroacoustic surveys which are conducted with a down-looking ... sonar and independent of the time of day. To demonstrate and quantify these negative biases on both the ... estimates of biomass distribution and abundance, a time-depth-density analysis was performed. Data for this ...
Meeting Document : WG-KRILL-93/48 : Autor(es): D.A. Demer and R.P. Hewitt (USA)
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Proposal to commission an independent review of the Secretariat’s data management systems
Abstract: 1. The Secretariat manages a comprehensive, detailed set of independent or related ... databases which support the work of the Commission and give effect to Article XX of the CAMLR Convention ... . Since the establishment of CCAMLR 28 years ago, there has been no formal, in-depth audit of the ... consider the merits of an independent review of CCAMLR’s data management systems. Author(s): Secretariat ...
Meeting Document : WG-SAM-10/08 : Autor(es): Secretariat
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Diet and trophic niche of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica
Abstract: The diet of Antarctic silverfish (Pleuragramma antarcticum) was evaluated by examining ... stomach contents of specimens collected in the Ross Sea (71°–77°S, 165°E–180°) in January–March 2008 ... composition of carbon and nitrogen. According to index of relative importance (IRI), the most important prey ... items of silverfish were copepods (IRI 81% over all specimens), predominantly Metridia gerlachei and ...
Meeting Document : WG-EMM-12/54 : Autor(es): M.H. Pinkerton, J. Forman, S.J. Bury, J. Brown, P. Horn and R.L. O’Driscoll (New Zealand)