Результаты поиска

1. An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort

   which can convert a series of detections of illegal fi shing effort into an estimation of the amount ... weighting each observation depending on where it occurs in the time series and the pattern of fi shery ... 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 ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 143–161 : Автор(ы): Ball, I

2. 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 ... 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 ... ) where q is the catchability. Equation (1) then becomes: (t-1M) t 1 (i-1M) I = I • e 12 + q ~ C .• e ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 49–79 : Автор(ы): Parkes, G.

3. 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 ... ): Lt = 204.3 [l-e -O.0563{t+0.545)] • • Shust et al. (1990): Aguayo (1992): Lt = 174.8 [l_e-O ... .07117{t-O.0049)] Lt = 210.8 [l_e-O.0644 {t+O.7832)] Los algoritmos de calculo de la mortalidad ... natural (M) fueron: • Berverton and Holt (1956) (basado en edad) 1 M(=Z)=--- t-t' donde, t' es la ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 21–30 : Автор(ы): Moreno, C.A. and P.S. Rubilar

4. 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 ... planned fi ve-year series of observations designed to complement and extend an existing time series ... annual acoustic surveys off the northern coast of South Georgia along a standard series of transects ... order to maintain the time series of acoustic estimates of krill density (and other associated bio ... - logical and oceanographic datasets), a new series of surveys was planned for the fi ve years 2000/01 to ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 71–82 : Автор(ы): 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

5. 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 ... PARALOMIS SPINOSISSIMA AND PARALOMIS FORMOSA IN CATCHES TAKEN DURING THE SPANISH SURVEY A N T A R T ' A ... dans des regions proches de la rupture de pente, 18 o t ~ les conditions de l'environnement ... -BOB, 93 y K)XH~IX O P K H ~ ~ ~ C K H X 0-BOB, 46 BOKPYr 0-Ba 3ne@aH~ 1.1 65 y K)XCHblx ~ ~ T ~ ~ H ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 165–173 : Автор(ы): López Abellán, L.J. and E. Balguerías

6. Histological study on the ovarian development of mackerel icefish (Champsocephalus gunnari) from the South Georgia Islands

   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 ... TaKXe OTHOCMTenhHO HA3KOe KOnAYeCTBO OTHepeCTPiBUIMXCII CaMOK AnA CaMOK B COCTOXHMU OTHePeCTUThCX B T ... , Channichthyidae, South Georgia, Antarctica, CCAMLR INTRODUCTION Antarctic fish have developed a series of ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 35–49 : Автор(ы): Macchi, G.J. and E.R. Barrera-Oro

7. Detection and quantitative estimation of krill concentrations by hydroacoustic instruments

   TeOpeTHqeCKHM paCqeTaM 30Ha 06HapY:>KeHH~ OTAeJI bHbfX oc06eH MO:>KeT 6h[T b 3HaqHTeJIbHO YBeJIHqeHa 3a CqeT ... 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 ... transmitter frequency. Thus, echo sounders operating at comparatively low frequencies (20-30 kHz) are much ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 123-139 : Автор(ы): Yudanov, K.I.

8. 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 ... fi sh were Frolkina 52 T ab le 1 : L en gt h co m po si ti on o f C ha m ps oc ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 49–69 : Автор(ы): Frolkina, Zh.A

9. Joint Polish/American hydroacoustic survey of Elephant Island and the vicinity of King George Island, 1988

   preparation of scientific papers. This was the second of a series of similar cruises. The principal ... bongo-net hauls (reduced speed from 6-8 knots to 3 knots for 45 min) spaced approximately every 30 n ... miles and R M T -8 hauls taken at several locations for length-frequency of ensonified populations ... 1984. BIOMASS Report Series No. 40: 106 pp. 361 APPENDIX CALCULATION OF TARGET STRENGTH AND ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 357–377 : Автор(ы): Macaulay, M.C.

10. Assessing the power to detect systematic change in Adélie penguin foraging trip duration

    or trips sampled diminished rapidly when sample sizes were greater than 30 penguins and three trips ... increasing the number of penguins or trips sampled diminished rapidly when sample sizes were greater than 30 ... échantillonnés a diminué rapidement lorsque la taille des échantillons était supérieure à 30 individus et trois ... выборки превышали 30 пингвинов или три похода на пингвина. Были разработаны статистические показатели для ... 30 pingüinos y tres viajes de alimentación por pingüino. Se desarrollaron pruebas estadísticas para ...

    Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 201–215 : Автор(ы): Southwell, C., J. Clarke and L.M. Emmerson

Страницы