Resultados de la búsqueda
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DETECTION OF COLD SEEPS AND HYDROTHERMAL VENTS
suggest an approach to identifying associated VMEs in the CCAMLR region that uses the results of ... geophysical techniques as well as the recovery of characteristic organisms. While the definitive ... fishing vessels to reduce the accidental disturbance of seep communities. Author(s): Logan, G., O’Brien ... Abstract: Cold seeps and hydrothermal vents can be detected by a number of oceanographic and ...
Meeting Document : WS-VME-09/09 : Autor(es): Logan, G., O’Brien, P.E., Rollet, N., Kennard, J., Jones, A.
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Review of length-weight relationships for Antarctic krill
changes in length-weight relationship parameters is discussed. Recommendations are given for the use of ... . Information on sex and dominant maturity stages underlying the data are supported. The influence of seasonal ... the listed lenght-weight relationships. Author(s): V. Siegel (Germany) Title: Review of length ...
Meeting Document : WG-KRILL-92/15 : Autor(es): V. Siegel (Germany)
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Recruitment of Antarctic krill (Euphausia superba) and possible causes for its variability
Abstract: Between year variability of krill year class success and recruitment during the 1977 ... Resources Program cruises in the Elephant Island area. The recruitment index (R1), based on the relative ... abundance of the 1 + age class, varies substantially between years, whereas it is quite similar between ... conditions during the preceding winter season, the timing of krill spawning, and the occurrence of dense salp ...
Meeting Document : WG-EMM-95/15 : Autor(es): Siegel, V., Loeb, V.
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Stock connectivity of Antarctic toothfish
dissolution of the genetic stock structure and explain the results found in this study. However, the actual ... , 48.4, 48.6, 88.1, 88.2 and 88.3, Divisions 58.4.1, 58.4.2 and 58.5.2, and the SPRFMO area north of ... be sequenced by Diversity Arrays to identify variable nucleotide SNPs sites. The analysis of SNPs ... indicated that the genetic structuring of Antarctic toothfish across the Southern Ocean is very weak. The ...
Meeting Document : WG-FSA-2019/P01 : Autor(es): D. Maschette, S. Wotherspoon, A. Polanowski, B. Deagle, D. Welsford and P. Ziegler
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Acoustic estimates of krill abundance at South Georgia, 1981–1998
north-eastern and north-western ends of South Georgia. In four of these years biomass was higher to the ... Abstract: Acoustic estimates of abundance of the Antarctic krill, Euphausia superba, at South ... subsidiary during other studies of the pelagic ecosystem at South Georgia. Krill abundance at the island ... of the years between 1990 and 1998 it was possible to calculate separate biomass estimates for the ...
Meeting Document : WS-AREA 48-98/9 : Autor(es): A.S. Brierley, J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson (UK)
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Status of krill target strength
cause of bias in single-animal measurements, namely thresholding. Theoretical estimates for the target ... Abstract: Empirical estimates for the target strength of krill are extracted from the literature ... strength are derived from the deformed-cylinder scattering model assuming specific sets of physical and ... . These are confined to measurements on aggregations of live euphausiids, which should avoid a frequent ...
Meeting Document : WG-KRILL-92/11 : Autor(es): K.G. Foote (Norway), D. Chu and T.K. Stanton (USA)
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Biology and distribution of South Georgia icefish (Pseudochaenichthys georgianus) around South Georgia and Shag Rocks
Abstract: Pseudochaenichthys georgianus is a member of the unique Channichthyidae family, which ... surveys undertaken in the austral summers between 1986 and 2006. P. georgianus (50-590 mm Total Length ... ) were caught throughout the South Georgia shelf from depths of 76 to 370 m, but very few specimens ... lack haemoglobin. The distribution, length-frequency and summer diet are described from 14 bottom trawl ...
Meeting Document : WG-FSA-07/21 : Autor(es): S. Clarke, W.D.K. Reid, M.A. Collins and M. Belchier (United Kingdom)
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Net diagrams and mammal exclusion devices of Chinese krill fishing vessels
exclusion devices included in the krill fishery notification submitted by China Author(s): Delegation of ... the People’s Republic of China Title: Net diagrams and mammal exclusion devices of Chinese krill ... Abstract: As requested by CM 21-03, Annex 21-03/A, attached are the net diagrams and mammal ...
Meeting Document : WG-EMM-14/33 : Autor(es): Delegation of the People’s Republic of China
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Acoustic estimates of krill density at South Georgia, December/January 1998/99
Abstract: Dual frequency (38 and 120 kHz) acoustic data from grid surveys in two boxes to the ... krill density there. Densities (east = 11.1 g m-2, west = 12.0 g m-2) were towards the lower end of the ... range observed over the past two decades, but not abnonnally low, and comprised almost entirely of large ... north-west and north-east of South Georgia during December/January 1998/99 were used to estimate mean ...
Meeting Document : WG-EMM-99/20 : Autor(es): A.S. Brierley and C. Goss (United Kingdom)
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Towards an ecosystem status assessment for South Georgia ‘Variability of Southern Ocean Ecosystems’ Project Team
interannual variability that we observe habitually in many components of the South Georgia marine ecosystem ... Abstract: We present the beginnings of a compilation of a suite of physical and biological ... 1999. We plan to use these data, some of which arise from the British Antarctic Survey's Core ... lead to an improved understanding of some cause-and-effect mechanisms that underlie the pronounced ...
Meeting Document : WG-EMM-00/61