Résultats de la recherche
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Fatty acid and stable isotope analyses to infer diet of Antarctic toothfish caught in the southern Ross Sea
consistent with the frequency and percentage occurrence of prey in Antarctic toothfish stomachs. Further ... trophic position. Overall results of this survey are consistent with the frequency and percentage ... (Orcinus orca), and a competi- tor with the Weddell seals and emperor (Apteno dytes forsteri) and Adélie ... 88.2 showing the small-scale research units (SSRUs) used for management, with depth contours plotted ... , 1998). All the samples were freeze-dried and ground with a mortar and a pestle. Fish and ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 21–36 : Auteur(s): Jo, H.-S., I. Yeon, C. Lim, S.M. Hanchet, D.-W. Lee and C.-K. Kang
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Surface water circulation in krill fishing areas near the South Shetland Islands
with a drogue attached at a depth of 30 m to assess flow patterns at the depth range where krill tended ... sluggish southwest current with a series of small-scale circular and semi-circular flows in the shelf ... calculations. The picture obtained of the surface circulation was considered in conjunction with the ... oceanic waters to the north of the South Shetland Islands. Each buoy was deployed with a drogue attached ... current with a series of small-scale circular and semi-circular flows in the shelf region, whereas the ... . The picture obtained of the surface circulation was considered in conjunction with the distribution ... regions. It was also emphasised that analyses of data to determine regions of rapid water transport with ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 125–136 : Auteur(s): Ichii, T. and M. Naganobu
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Krill biomass in Area 48 and Area 58: recalculations of FIBEX data
were calculated following the procedures outlined in Appendix I of this paper. Correspondence with Dr ... Anon. (1986) were appropriate for Odissey. Correspondence with Lie. E. Marschoff (Argentina) and a ... current analyses were comparable with those of Anon. (1986). Wherever possible, the original analysis ... values and strata prior to undertaking any analysis with new TS values and area definitions. The ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 157–181 : Auteur(s): Trathan, P.N., D.J. Agnew, D.G.M. Miller, J.L. Watkins, I. Everson, M.R. Thorley, E. Murphy, A.W.A. Murray and C. Goss
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Measurements of differences in the target strength of Antarctic krill (Euphausia superba) swarms at 38 kHz and 120 kHz
in average target strength at these two frequencies. The results are in good agreement with recent ... experimental work on the target strength of encaged E. superba at 38 and 120 kHz but are in major conflict with ... over the past three years. Spot checks on SL and VRS made before, during and after the cruise with a ... are in good agreement with recent experimental work on the target strength of encaged E. superba at ... 38 and 120 kHz but are in major conflict with the 120 kHz - to - 50 kHz target strength conversion ... kHz, with 120 kHz being probably the most common frequency (Miller and Hampton, 1989). Knowledge of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 75–86 : Auteur(s): Hampton, I.
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A functional division of Electrona carlsbergi (Tåning, 1932) area of habitat in relation to the latitudinal zonation of the Southern Ocean
performed using a midwater cable trawl with a mouth opening of 3 600 m2• Trawling speed was usually 3 to ... by the theory that the reproductive part of the E. carlsbergi distribution area coincides with the ... 3.5 knots; with a trawling duration of 1 hour. Because of the known relationship between the ... with analogous results obtained in the southern part of the Pacific Ocean (Belkin et al., 1988 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 369–395 : Auteur(s): Zemsky, A.V. and S.A. Zozulya
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Chilean krill fishery: analysis of the 1991 season
fishery from 1987 to 1991. Data is presented by split-years and shown under the calendar year in which ... for the year 1983, only in the Subarea 48.1, comprising from 5% to 100% of the kriU fishery in that ... recognise three categories of krill with respect to colour: red, pink and white. Their target is the red ... 1991. The increase during 1987-1988 agrees with data from Miller (1989). 3.2 Spatial Distribution of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 273–287 : Auteur(s): Marín, V.H., A. Mujica and P. Eberhard
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A risk-management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems
presence and the consequences of interaction with different types of gear, a risk-management framework is ... interactions of bottom fishing gear with VMEs and associated uncertainties from risk analysis is combined to ... abundance of many species or large changes in some species. 5–25 Months–one year 3 Major Measurable ... from Table 3 with a default uncertainty (consequence) of 3 (Major) when no information is available ... matrix in Table 3, which can be categorised into the five classes used by WG-IMAF, if desired. As with ... with different types of gear, a risk-management framework is proposed, similar to that which has been ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 177–193 : Auteur(s): Martin-Smith, K
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Characteristics of krill swarms from Prydz Bay
Euphausia crystallorophias. An increase in swarm length was seen with increasing distance from the coast ... crystallorophias. An increase in swarm length was seen with increasing distance from the coast. Resume Le jeu ... before reaching the edge of the continental shelf. Data were collected with a Simrad EK500 echo sounder ... characteristic pattern of increasing dB with depth (because of the Time Varied Gain correction), and were ... Between Swarm Distance (BSD), the distance from the last ping encounter with the swarm and the first ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 177–189 : Auteur(s): Agnew, D.J. and I.R. Higginbottom
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The survivorship of rays discarded from the South Georgia longline fishery
only skates that are alive and undamaged are selected, with animals not being deemed fi t for tagging ... South Georgia in the 2003 season. The experiment was undertaken during May and June 2003 with the ... foredeck of the fi shing vessel Isla Sofía, with each tank having the capacity to hold an estimated 672 ... would be experienced during the course of the experiment. These tanks were fi tted with a constant ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 155–164 : Auteur(s): Endicott, M. and D.J. Agnew
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Species identification and age estimation for the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea
, living to at least 50 years. Females grow at a faster rate, and reach a larger size, than males, but both ... be from 12 to 14 years. File: 03marriott-etal.pdf ... value was attributed to each age estimate, as follows: 1. certain count 2. uncertainty of ±1 year 3 ... of exploitation so far. Only fi sh with readability grades of 1–3 were used in the analysis of von ... otoliths with readability grades as follows: Readability 1 2 3 4 5 Number 7 62 144 71 16 The two readers ... otoliths appeared to produce acceptable results with ages being confi dently (±2 years) attributed by the ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 37–51 : Auteur(s): Marriott, P., P.L. Horn and P. McMillan