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Midwater trawl catchability in relation to krill and possible ways of assessing gross catch
thereby alter the angle of attack of a section of trawl netting under observation while studying the ... edge, Le. in the cod line section , with x = L YX=L = 0 (5) (6) where L = trawl length from the ... zero section to the cod line section under working conditions (metres). Initial conditions for Pare ... krill in this particular section of the trawl with the coordinate x and NE = [y, -;] t is the amount of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 87–113 : Autor(es): Zimarev, Yu.V., S.M. Kasatkina and Yu.P. Frolov
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A study of Patagonian toothfish (Dissostichus eleginoides) post-tagging survivorship in Subarea 48.3
diet items by Arkhipkin et al. (2003) and Pilling et al. (2001)), which were placed within the tank ... experimental tanks (Figure 3). Another possible explanation is that toothfish spawn in late July and August ... ): 131–144. Pilling, G.M., M.G. Purves, T.M. Daw, D.A. Agnew and J.C. Xavier. 2001. The stomach ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 279–289 : Autor(es): Agnew, D.J., J. Moir Clark, P.A. McCarthy, M. Unwin, M. Ward, L. Jones, G. Breedt, S. Du Plessis, J. Van Heerdon and G. Moreno
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Directed research. Antarctic Marine Living Resources (AMLR). A program development plan
goal of effective implementation of the objectives under the CCAMLR. Section 312 of the Act directs ... under the CCAMLR. Section 312 of the Act directs, among other things, that "(A) The Director of the ... oeuvre efficace des objectifs de la CCAMLR. La Section 312 de la loi stipule, entre autres, que: "(A ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 363-373 : Autor(es): Office of Science and Technology, NMFS, NOAA, US Department of Commerce (USA)
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Some principles for fisheries regulation from an ecosystem perspective
- interactions, does such a level necessarily exist as a time invariant quantity. Once again, the solution in ... , W.K. 1984. Marine mammal fishery interactions: modelling and the Southern Ocean. CCAMLR Selected ... . Schaefer, M.B. 1971. Men, birds and anchovies in the Peru current - dynamic interactions. Trans Amer. Fish ... , Case and Gi1pin, 1984). Species interact in ways which make it difficult to decide exactly where the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 323-339 : Autor(es): de la Mare, W.K.
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Spatially explicit population dynamics models for Antarctic toothfish in the Ross Sea region
explicit predator–prey interactions. In order to alleviate the issue of dramatically increasing numbers ... , from 1995 to 2011. Fishing mortal- ity (from 1998) and tagging processes (from 2001) consistent with ... 6 939 - - - 2000 752 14 081 - - - 2001 592 14 087 - 259 - 2002 1 355 16 612 831 684 1 2003 1 769 ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 19–37 : Autor(es): Mormede, S., A. Dunn, S. Hanchet and S. Parker
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Significant intra-annual variability in krill distribution and abundance at South Georgia revealed by multiple acoustic surveys during 2000/01
March 2001 (late-season). The surveys were the first in a newly planned five-year series of observations ... January 2000/01 (mid-season), and in March 2001 (late-season). The surveys were the fi rst in a newly ... (au début de la saison), fi n décembre 2000/début janvier 2001 (mi-saison) et en mars 2001 (vers la ... /01 г. (середина сезона), и в марте 2001 г. (конец сезона). Это были первые съемки в недавно ... enero de 2000/01 (mediados de la temporada) y en marzo de 2001 (a fi nes de la temporada). Estas ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 71–82 : Autor(es): Brierley, A.S., C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst
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Estimating standing stock of krill using maximum entropy
relate to any spatial scale determined from the krill distribution or dependent species. Interactions ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 193 : Autor(es): Everson, I
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Variations in echosounder calibration with temperature, and some possible implications for acoustic surveys of krill biomass
undertaken in temperate European waters. The most recent of these took place in August 1995 at Uggdalseidet ... - see Simrad, 1993 section P2260E, pp. 15-16), which would equate to a 52.5% underestimation of krill ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 273–281 : Autor(es): Brierley, A.S., C. Goss, J.L. Watkins and P. Woodroffe
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Status of krill target strength
scattering cross section, and mean volume backscattering coefficient and strength are defined. Empirical ... scattering amplitude. The backscattering cross section, 0' or O'bs, is defined in terms of the far-field ... cross section in the backscattering direction. Because of the frequently large range in values of C1 or ... strength TS, 0' TS = 10 log - = 10 log O'bs' 41l' (2) where the backscattering cross section is ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 101–126 : Autor(es): Foote, K.G., D. Chu and T.K. Stanton
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Age determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula subarea (Subarea 48.1)
quadrillages faux et annuels sur les ecailles. La determination de I'age au moyen de section transversale ... those obtained from the section of the first otolith. These procedures facilitated the age ... examination of an otolith cross section under reflected and transmitted lights revealed that hyaline nucleus ... had an eccentric position. The growth rings could be observed in all the section; however the dorsal ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 143-160 : Autor(es): Barrera-Oro, E.