Resultados de la búsqueda
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Krill biomass in Area 48 and Area 58: recalculations of FIBEX data
CCAMLR Secretariat, 25 Old Wharf, Hobart, Tasmania 7000, Australia 3 Sea Fisheries Research Institute ... 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 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 157–181 : Autor(es): 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 : Autor(es): 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 ... fishing grounds and target species in recent years has opened up great opportunities for exploiting ... concentrated over a number of years (Kozlov and Zemsky, 1988). During the fifteenth cruise of RV Vozrozhdenie ... by the theory that the reproductive part of the E. carlsbergi distribution area coincides with the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 369–395 : Autor(es): 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 ... recognise three categories of krill with respect to colour: red, pink and white. Their target is the red ... total catch is regulated by the capacity of the freezers. 3. CHILEAN KRILLFISHERY DURING 1991 3.1 ... for three days (Figure 3). The total effort-per-day, measured as total towing time, ranged between 3 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 273–287 : Autor(es): 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 ... 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 ... abundance of many species or large changes in some species. 5–25 Months–one year 3 Major Measurable ... 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 ... 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 ... parameters (Table 3). However, the lack of fi sh aged younger than 9 years has resulted in unrealistic ... ± 2.87 1.37 ± 2.74 -3.89 Age range (years) 9–55 11–51 9–55 N 117 96 213 45 Figure 3: Snout–vent ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 37–51 : Autor(es): Marriott, P., P.L. Horn and P. McMillan
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By-catch of fishes captured by the krill fishing vessel Chiyo Maru No. 2 in Statistical Area 58 (January to March 1995)
j=21!nJ(n+1)(n+3) ...( n+2j-3) . (3) The variance of delta-distributed data with more than one ... studies where, in general, fish by-catch decreased with increasing krill catch rates (Table 3). The top ... CCAMLR Science, Vol. 3 (1996): 111-123 BY-CATCH OF ... o p ~ y XnoHcKoro KpHnesoro Tpaynepa Chiyo Maru NO. 2. K COXaJIeHkiIo B 3~0f i pa6o~e AaHHbIe no ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 111–123 : Autor(es): Watters, G
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A post-processing method to remove interference noise from acoustic data collected from Antarctic krill fishing vessels
and its distribution at small- scale management units is required (CCAMLR, 2015). Compared with ... was also equipped with a 38 kHz SIMRAD ES60 echo- sounder, a 32 kHz KAIJO sonar, a three-frequency ... operational during normal fishing activities; however, none of them were synchronised with the EK60 ... ; Higginbottom et al., 2008). The specific operations in each step are described as follows, with operators ...
Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 17–30 : Autor(es): Wang, X., J. Zhang and X. Zhao