Résultats de la recherche
-
Information on the status of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in the lower South Shetland Islands, derived from the 2000–2006 monitoring program at Potter Cove
. gibberifrons (less than 30 cm) caught offshore (Kock et al., 2002). It is important to note that these ... , D. Ramm, J. Ashford, S. Wilhelms, T. Near, N. Gong and H. Flores. 2001. Results and standing stock ... , J. Ashford, A.L. DeVries, K. Dietrich, S. Hanchet, T. Near, T. Turk and S. Wilhelms. 2003 ... , R. Riel, T. Romeo, S. Schöling and L. Zane. 2002. Standing stock estimates of fi nfi sh biomass ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 83–87 : Auteur(s): Barrera-Oro, E.R. and E.R. Marschoff
-
Estimation of krill (Euphausia superba) mortality and production rate in the Antarctic Peninsula region
of juvenile krill of 23 to 30 mm became quite obvious, while 30 to 44 mm medium sized subadults ... frequencies from whale stomachs and found high abundances of 20 to 30 mm juvenile krill. These size groups ... C ID ::J 0- ID ~ LL 6 5 4 3 2 1 25 30 35 40 45 50 Total Length (mm) N=12933 ... Antarctic Peninsula survey area for different years. 30 • PN87/88 29 oME89/90 28 z27 .E 26 25 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 159–176 : Auteur(s): Siegel, V.
-
Distribution and size–age composition of Antarctic krill (Euphausia superba) in the South Orkney Islands region (CCAMLR Subarea 48.2).
+; modal length 25–30 mm) and 2-year-old krill (age 2+; modal length 40–45 mm); the 3-, 4- and 5-year-old ... both 2009 and 2010 (Figures 3 and 6). Similar results indicating the absence of krill less than 28–30 ... cohort) of less than 30 mm TL, down to 15 mm in Subarea 48.2 (Krafft and Skaret, 2009; Gulyugin et al ... . Progr. Ser., 306: 17–30. CCAMLR. 2006. Scheme of International Scientific Observation: Scientific ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 123–134 : Auteur(s): Sologub, D.O. and A.V. Remeslo
-
On the intensity of sampling krill trawl catches
8012, South Africa 29 30 • l'examen des differences minimales de longueurs decelables d'une ... South Orkneys Elephant Island 1mm 750 500 2mm 200 150 5mm 30 25 37 :r: G z w -' 0---0 ... 120 100 90 80 70 60 50 40 30 20 10 30 35 i i i i i i i i i i i i i ... difference. As explained in Appendix 1 (A), a simple two-sample t test was used and the between-population ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 29–48 : Auteur(s): Miller, D.G.M.
-
Measurements of differences in the target strength of Antarctic krill (Euphausia superba) swarms at 38 kHz and 120 kHz
-FIBEX de 1984. Pe310Me Pa3JUflUf5.1 B CHJIe aKycTHlIecKot't: QeJIH B3pOCJIOro (30-60 MM ... -scatter from aggregations of encaged animals which varied in mean length from 30 to 39 mm. Calculated ... ~ Z 30 « o "" ~ ~ 20 Z 10 .' . -I, - A9880 /' 1\ --- A9885 1\ •••• A9891 ... Mean 6.9 470 -63.2 -64.8 -1.6 (Noise) 80 - I " , - -- I I ...L. " ~i :~ I ~t ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 75–86 : Auteur(s): Hampton, I.
-
Age determination of Champsocephalus gunnari Lönnberg, 1905 (Channichthyidae) taken in the South Georgia area in 1990
-26 and 30-34 cm. Only vertebra samples (n =140) were used in age determination. Age groups from 1+ to ... had three peaks corresponding to size groups of 16-18, 24-26 and 30-34 cm. Only vertebra samples (n ... points culminants correspondant aux groupes de taille de 16 a 18, de 24 a 26 et de 30 a 34 cm. La ... rpynnaM 16-18, 24-26 H 30-34 CM. IIpH onpe.lleJIeHHH B03paCTa HCnOJIb30BaJIHCb TOJIbKO 06pa3~bl n03BOHKOB ... tres maximos correspondientes a los grupos de tallas de 16-18,24-26 Y 30-34 cm. Solo se utilizaron ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 285–293 : Auteur(s): Kochkin, P.N.
-
Status of krill target strength
number density were performed at 30 and 20 kHz. Measurements at 30 kHz were performed near Bouvet Island ... et al. (1992) show that this dip can be quite distinct and is sometimes as much as 30 dB below the ... pressure field is to be evaluated, (0 is the angular frequency, and t is time. The scattered pressure ... . Suppressing the time dependence exp( -i(O t), Um r~oo p = Afexp(ikr)/r, se where fis the far-field ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 101–126 : Auteur(s): Foote, K.G., D. Chu and T.K. Stanton
-
Joint Polish/American hydroacoustic survey of Elephant Island and the vicinity of King George Island, 1988
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 ... is here defined as: Sy = -75.81 + 10 log T 1.0 where Sy is mean volume back-scattering-strength ... ; T is echo integrator deflection for 1 n mile segment (in n miles). The mean abundance of krill per ...
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.
-
Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longlines
57.2 ± 6.4 79 16 11 568 511 1 679 ± 74 j,k,l 39.2 ± 2.7 105 26 30 683 633 2 568 ± 82 , , ,i j k ... estimated 30% depredation rate over the total capture of Patagonian toothfish, this study reports levels ... - viding advices for statistical analyses. References Abe, T. and T. Iwani. 1989. Notes on fishes from ... . Agnew, D.J., J. Pearce, G. Pramod, T. Peatman, R. Watson, J.R. Beddington and T.J. Pitcher. 2009 ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 1–14 : Auteur(s): Gasco, N., P. Tixier, G. Duhamel and C. Guinet
-
The fishery for Patagonotothen brevicauda guntheri in CCAMLR Subarea 48.3
i J T I I I I cm o 6 10 16 20 25 30 36 40 46 60 66 60 86 70 cm Figure 2: Size frequency ... 21-30 ANI 54 38 15 0 7 0 0 nee 11-20 ANI 54 41 6 4 0 2 21-31 ANI 54 41 178 0 96 0 53 Table 5 ... 350 32 30 - 28 - 26 - 24 - 22 - 20 - 18 - 16 - 14 - 12 - 10 - 8 - 6 - 4 - 2 - 0 ... 1 o - - - - - - - - - ~ - - - - - - - - - t5 ) \~ I 10 I 11S I 20 21S 30 I 31S ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 275–283 : Auteur(s): Everson, I. and C. Mitchell