Resultados de la búsqueda
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Diet composition and feeding strategy of Antarctic toothfish, Dissostichus mawsoni in the research blocks 58 and 88 for the exploratory longline fishery in 2014–2018 of Korea
Abstract: The stocks of Antarctic toothfish, Dissostichus mawsoni were a relatively economically ... and ecologically important fishery resource in the waters of Antarctic. However, there is not enough ... feeding strategy of D. mawsoni in the research blocks 58 and 88 as a part of Korean research plan for the ... on the results of stomach content identification of the D. mawsoni caught in the research blocks 58 ...
Meeting Document : WG-FSA-18/24 : Autor(es): G.W. Baeck, S.-G. Choi, S. Chung and D.H. An
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Demersal fishing interactions with marine benthos in the Southern Ocean: an assessment of the vulnerability of benthic habitats to impact by demersal gears
Dissostichus spp. with marine benthos in the Australian EEZ of the Southern Ocean. Key outcomes of this project ... Convention area to quantify habitats types where fishing occurs • Identification of types and likely extent ... of interactions between different demersal fishing gears (trawl, longline, trap) with benthic ... shelf • An assessment of the vulnerability of benthic habitats to impact by demersal gears in the Sub ...
Meeting Document : SC-CAMLR-XXVI/BG/30 : Autor(es): Delegation of Australia
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A compilation of parameters for a krill–fishery–predator model of the Scotia Sea and Antarctic Peninsula
Abstract: We describe the compilation and derivation of parameters for use in krill-fishery ... -predator models of the Scotia Sea – Antarctic Peninsula region. The primary aim is to provide input for the ... parameters should be applicable to other models of the system. Our methods include the use of weighted ... averages to derive “generic” parameters from multiple species in a taxonomic group, and the derivation of ...
Meeting Document : WG-EMM-06/30 Rev. 1 : Autor(es): S. Hill, K. Reid, S. Thorpe (United Kingdom), J. Hinke and G. Watters (USA)
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Distribution and biological characteristics of two toothfish species of genus Dissostichus (family Nototheniidae) off Bouvet Island
) toothfish, were registered during the fishery on Dissosyichus spp. on the shelf edge and slope of Bouvet ... surrounding the island. The vertical distribution of two species was differentiated distinctly, with the ... crossover point at depth of 1300 m. For both species the size and weight compositions were studied; indices ... of stomach fullness and qualitative diet composition as well as maturation stages of gonads and their ...
Meeting Document : WG-FSA-11/17 : Autor(es): A.F. Petrov (Russia)
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ANALYSIS OF ICE-FISH (CHAMPSOCEPHALUS GUNNARI) SPATIAL DISTRIBUTION FOR OPTIMIZATION OF THE BOTTOM TRAWL SURVEY SAMPLING
surveys in the South Georgia area are analyzed. The high heterogeneity of horizontal and vertical fish ... distribution in the near-bottom layers within the surveyed area is shown. Influence of this fish distribution ... estimates of varying headline height of bottom trawl and shifting trawl stations positions. Under example of ... considerable degree stipulated by heterogeneity of fish distribution in the near-bottom layer relative to the ...
Meeting Document : WG-SAM-09/20 : Autor(es): S.M. Kasatkina (Russia)
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Consumption of krill by minke whales in Areas IV and V of the Antarctic
Abstract: The consumption of Antarctic krill (Euphausia superba) by the southern minke whale ... (Balaenoptera acutorostrata) in Areas IV and V of the Antarctic was estimated from diurnal change in the ... Whale Research Program Under Special Permit in the Antarctic) data. Estimates of the daily food ... IV were equivalent to roughly one- fourth of a total estimate biomass of krill in Area IV ...
Meeting Document : WG-EMM-97/17 : Autor(es): Fujise, Y., Tamura, T., Ichii, T.
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In situ target strength measurements of Antarctic zooplankton (Euphausia superba and Salpa thompsoni) at 120 khz and 200 khz, corroboration of scattering models, and a statistical technique for delineating species
Abstract: In-situ measurements of target strength (TS) were made of Antarctic zooplankton ... the 200 kHz single-beam data. The backscattering cross-sectional areas (σbs) of salps are shown to fit ... scattering is from each animal's spheroidal nucleus. Consistent with the measurements of encaged krill ... (5):2985-2988 (1993)], the TS of in-situ krill are shown to fit a deformed cylinder model [T.K ...
Meeting Document : WG-Krill-94/12 : Autor(es): D.A. Demer and R.P. Hewitt (USA)
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A generalised model for evaluating yield and the long term status of fish stocks under conditions of uncertainty
flexibility for assessing the influence of different patterns of growth, natural mortality, spawning and ... fishing on the estimates of yield per recruit. Also, it can be used to evaluate the performance of a stock ... each year by integrating a set of differential equations which incorporate functions that specify the ... rate of change or magnitude of parameters, such as growth, mortality, age dependent selectivity and ...
Meeting Document : WG-FSA-95/41 : Autor(es): de la Mare, W.K., Constable, A.J.
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Preliminary assessment of mackerel icefish (Champsocephalus gunnari) in the vicinity of Heard Island and McDonald Islands (Division 58.5.2), based on a survey in March–April 2010, including a revised growth model
of short-term annual yield in the 2010/2011 CCAMLR season. This paper provides a preliminary ... Abstract: A survey of mackerel icefish, Champsocephalus gunnari, was undertaken in Division ... 58.5.2 in the vicinity of Heard Island in March-April 2010 to provide the information for an assessment ... assessment of yield for the area of Division 58.5.2 to the west of 79°20’ E using standard CCAMLR methods ...
Meeting Document : WG-FSA-10/12 : Autor(es): D.C. Welsford (Australia)
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Models of larvae dispersion of Antarctic toothfish (Dissostichus mawsoni)
stock structure in the Ross Sea have parallels for populations in other regions of the Antarctic, and ... hypotheses about how stock structure is maintained may apply to each population. We provide an update of the ... circumpolar models of larval dispersion for D. mawsoni developed by Hanchet et al. (2008) using the HiGEM ... circumpolar oceanographic model documented by Rickard et al. (2010). We used a finer resolution of simulated ...
Meeting Document : WG-FSA-12/48 : Autor(es): A. Dunn, G.J. Rickard, S.M. Hanchet and S.J. Parker (New Zealand)