Résultats de la recherche
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Management and assessment options for the crab fishery around South Georgia
there a r e no t ime ser ies of commercial o r biological data. Apart from the data collected on ... '). In addition to the 'size-sex-season' approach, it is essential to use some form of catch/effort ... Crabs, 28-30 Nov . 1989, Anchorage, Alaska. University of Alaska. Fairbanks: 575-585. ... ~ o r o npoMbIcnosoro o60py~o~a~B51. B H ~ C T O R W ~ ~ ~ p a 6 o ~ e AaeTCR 0 6 3 0 ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 193–202 : Auteur(s): Basson, M. and D.D. Hoggarth
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An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort
when they were in the same area. Dj = Lj – Ej (9) This follows the same form as the calculated Dj ... patrols starting every 30 days and lasting for 16 days. All dates are given in number of days from some ... is patrolling the region. Vessel Starting date Ending date One 30 44 Two 60 74 Three 90 104 ... which can convert a series of detections of illegal fi shing effort into an estimation of the amount ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 143–161 : Auteur(s): Ball, I
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Notes on the use of virtual population analysis for stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1990/91 and 1991/92 seasons
would form a considerable proportion of the catch. The observed age distribution from a stock ... standardised form and standardised according to the method described in Section 2.1. The calculation of ... the survey t (July = month 1, August = month 2 etc.), and known catches C in month i, the number of ... fish N of age a on 1 July was approximated to: (t-1M) t 1 (i-1M) N = N • e 12 + ~ C .• e 12 a at ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 49–79 : Auteur(s): Parkes, G.
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Remarks on the natural mortality of Dissostichus eleginoides in Subarea 48.3
, captura total y una submuestra de 30 ejemplares por lance, de los cuales se obtuvo la composicion por ... . 4. CONCLUSIONES Los valores de M (= Z) calculados por cuatro diferentes metodos han mostrado ser ... ' LS - 57°00'LS) yen el Area de las Georgias del Sur. Documento WG-FSA-92/30. CCAMLR, Hobart ... Table 1: Table 2: Table 3: Tableau 1: Tableau 2: Tableau 3: 30 List of Tables Natural ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 21–30 : Auteur(s): Moreno, C.A. and P.S. Rubilar
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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 ... designed to complement and extend an existing time series regularly maintained by the British Antarctic ... proporcionarían información sobre la variabilidad a corto plazo que podría ser utilizada para interpretar los ... 0.70 West W31 30 Dec 2000 76.26 10.52 West W41 30 Dec 2000 81.50 0.61 Mid West W11 2 Jan 2001 80.8 ... 30 Dec 2000 83.28 206.98 East E22 30 Dec 2000 74.61 7.32 East E31 31 Dec 2000 80.49 32.22 East E32 31 ... targets at South Georgia and the South Orkneys during a season of krill scarcity. Mar. Ecol. Prog. Ser ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 71–82 : Auteur(s): 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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On the presence of Paralomis spinosissima and Paralomis formosa in catches taken during the Spanish survey Antártida 8611
Sur ( A N T A R T I D A 9101) . Document WG-FSA-91/33. CCAMLR, Hobart, Australia: 30 pp. CCAMLR ... cruise form a n important basis for the estimation of the potential yield of these resources, a n d ... . Tows were 30 minutes in duration and the vessel speed was three knots. The trawl used for sampling ... 30% sand and the remainder gravel. However, the presence of certain species of invertebrates in ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 165–173 : Auteur(s): López Abellán, L.J. and E. Balguerías
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Histological study on the ovarian development of mackerel icefish (Champsocephalus gunnari) from the South Georgia Islands
parece ser una etapa de maduracion pero microscopicamente corresponde a una etapa de regresion. En ... breaks and the yolk globules tend to coalesce to form a slightly eosinophilic amorphous mass (Figure 4A ... xkiYHkiKoeoro ~ ~ ~ B H T M R y oco6eii Champsocephalus gunnari, BbInoBneHHbIx CYAHOM Dr Eduardo L. Homberg B ... HeBOOPYXeHHbIM ma30M). n e p ~ b l e Macchi and Barrera-Oro IIXTb C T ~ A M ~ ~ COOTBeTCTByIoT ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 35–49 : Auteur(s): Macchi, G.J. and E.R. Barrera-Oro
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Detection and quantitative estimation of krill concentrations by hydroacoustic instruments
las areas prospeccionadas. La labor de detectar las concentraciones superficiales de krill puede ser ... movimiento. Segun calculos teoricos, el radio de deteccion de especimenes individuales puede ser aumentado ... different years and seasons. In the same area at different times, krill can form large concentrations in ... . Such aggregations can be observed visually from on board ship in the shape of spots of different form ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 123-139 : Auteur(s): Yudanov, K.I.
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Distribution of mackerel icefish (Champsocephalus gunnari) (Channichthyidae) around South Georgia at various stages of its life cycle
t E vr ik a M ea n le ng th (m m ) 62 58 61 55 30 / 3– 7/ 4/ 19 88 L en gt h ra ... : 100–200, 201–300 and 301–500 m. The duration of each trawl was 30 min at a speed of 3–3.5 knots ... winter, catches of more than 100 individuals per 30 min trawl (8–15 cm) were taken at a bottom depth of ... ng e (m m ) 30 –9 0 40 –7 0 30 –9 0 30 –7 0 M od al le ng th , % o f f is h of d ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 49–69 : Auteur(s): Frolkina, Zh.A
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Joint Polish/American hydroacoustic survey of Elephant Island and the vicinity of King George Island, 1988
120 kHz, resulto ser de 260k toneladas mientras que en el estrecho de Bransfield al sur de la isla ... bongo-net hauls (reduced speed from 6-8 knots to 3 knots for 45 min) spaced approximately every 30 n ... preparation of scientific papers. This was the second of a series of similar cruises. The principal ... miles and R M T -8 hauls taken at several locations for length-frequency of ensonified populations ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 357–377 : Auteur(s): Macaulay, M.C.