Search results
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Killer whale (Orcinus orca) and sperm whale (Physeter macrocephalus) interactions with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic
169 to 2 150 m. Most effort was concentrated along the 1 000 m depth contour. Sperm whales were the ... . Killer whale pods were generally small (2–8 animals), while solitary animals and larger pods (>15 ... vessels, although smaller groups (2–3 animals) were also relatively common. Interactions with killer ... longlines, targeting Patagonian toothfi sh (Dissostichus eleginoides), were deployed in depths of 169 to 2 ... . Killer whale pods were generally small (2–8 animals), while solitary animals and larger pods (>15 ... vessels, although smaller groups (2–3 animals) were also relatively common. Interactions with killer ... eleginoides) ont été posées à des profondeurs de 169 à 2 150 m. L’effort de pêche était principalement ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 111–126 : Author(s): Purves, M.G., D.J. Agnew, E. Balguerías, C.A. Moreno and B. Watkins
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Analyses of acoustic line-transect data from the waters around South Georgia: estimation of krill (Euphausia superba Dana) – biomass
155 786 km 2 was estimated to be 1.8225 x 10 6 tonnes (Coefficient of Variation = 9.5%). This gives an ... estimate of mean density throughout the region of 11.7 tonnes km-2. Although the estimate of the mean is ... density throughout the region of 11.7 tonnes km-2• Although the estimate of the mean is not sensitive to ... %). Ceci donne une estimation de densite moyenne pour toute la region de 11,7 tonnes km-2• Bien que ... ,llH5I5I rrJIOTHOCTb BO BceM patioHe COCTaBHJIa TaKHM 06pa30M 11,7 TOHH KM-2. XOT5I o~eHKa Cpe,llHeti ... densidad media de la region de 11.7 toneladasokm-2. Aunque la estimacion de la media no es susceptible a ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 225–243 : Author(s): Murphy, E., I. Everson and A. Murray
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Validation of sink rates of longlines measured using two different methods
plastic bottles (bottle method). Sink rates measured to 2 m with bottles averaged 0.23 ± 0.07 m.s –1 ... measure sink rates to depths of more than 2 m down to the seabed. A major advantage of the TDRs is the ... string of known length wrapped around empty plastic bottles (bottle method). Sink rates measured to 2 m ... readings were required. TDRs can be used to measure sink rates to depths of more than 2 m down to the ... bouteille). Avec les bouteilles, la vitesse d’immersion à 2 m était en moyenne de 0,23 ± 0,07 m.s–1, alors ... mesurer les vitesses d’immersion à des profondeurs de plus de 2 m et jusqu’au fond. L’un des principaux ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 179–187 : Author(s): Wienecke, B. and G. Robertson
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Results of a longline survey on seamounts in the southeast Atlantic and in Subarea 48.6 and Division 58.4.4
the isobaths and in depths down to 1 500-2 000 m. Numerically, catches were dominated by Patagonian ... toothfish (Dissostichus eleginoides), with 2 822 individuals caught (83% of total catch). Grenadiers of the ... 1 500-2 000 m. Numerically, catches were dominated by Patagonian toothfish (Dissostichus ... eleginoides), with 2 822 individuals caught (83% of total catch). Grenadiers of the genus Macrourus were the ... prelev6s sur les palangres posees perpendiculairement aux isobathes, jusqufB 1 500 B 2 000 m de profondeur ... . Dans les captures, la legine australe (Dissostichus eleginoides) dominait, en nombre, avec 2 822 ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 99–116 : Author(s): López Abellán, L.J. and J.F. González Jiménez
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Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island
in inshore regions where krill frequently occurred but higher density areas of krill (~250 g/m 2 ... occurred only occasionally but in large aggregations (surface length about 2 to 3 km) of higher densities ... (~250 g/m 2). In the inshore foraging areas krill undertake diurnal vertical migrations, tending to be ... where krill occurred only occasionally but in large aggregations (surface length about 2 to 3 km) of ... (d'environ 2 a 3 km de long) et de densites elevees (~250 g/m2). Dans les secteurs d'alimentation cotiers ... Institute of Far Seas Fisheries, Orido 5-7-1, Shimizu, Shizuoka, 424 Japan 2 National Marine Mammal ... arperau.HSIX (OKOJIO 2-3 KM ,l(JIHHOH Ha nOBepXHOCTH) 60JIbillHX nJIOTHOCTeH (~250 r/M2). B npH6pe)l{HbIX ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 273–285 : Author(s): Ichii, T., H. Ishii, J.L. Bengtson, P. Boveng, J.K. Jansen and M. Naganobu
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Intra-annual variability in the density of Antarctic krill (Euphausia superba) at South Georgia, 2002–2005: within-year variation provides a new framework for interpreting previous ‘annual’ estimates of krill density
g m –2, SD = 24.3), but had risen substantially by summer in each year (mean = 89.5 g m –2, SD ... –2, SD = 24.3), but had risen substantially by summer in each year (mean = 89.5 g m–2, SD = 64.2). A ... faibles en hiver (moyenne = 18,7 g m–2, SD = 24,3), sont remontées considérablement chaque année avant ... l’été (moyenne = 89,5 g m–2, SD = 64,2). Un modèle de régression sinusoïdale (période = 52 semaines ... (среднее = 18.7 г м–2, SD = 24.3), но каждый год значительно возрастала к лету (среднее = 89.5 г м–2, SD ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 27–41 : Author(s): Saunders, R.A., A.S. Brierley, J.L. Watkins, K. Reid, E.J. Murphy, P. Enderlein and D.G. Bone
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Estimation of natural mortality using catch-at-age and aged mark-recapture data: a multi-cohort simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation.
with recruitment average of 2 million with annual coefficient of variation (CV) of 0.3 and annual catch ... selectivity function, the bias and imprecision in estimates of M increased by no more than 2% for the CCODE ... recruitment average of 2 million with annual coefficient of variation (CV) of 0.3 and annual catch of 500 000 ... selectivity function, the bias and imprecision in estimates of M increased by no more than 2% for the CCODE ... , fishing mortality, age-structured model, CCAMLR mailto:steve.candy@aad.gov.au Candy 2 introduction ... , , exp / / exp δ δδ δ ¢ ¢ + + ¢ ¢= - - = - - t t t a t a t a N N F t M t N F M (2) where ( ) /δ ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 1–27 : Author(s): Candy, S.G.
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A statistical method for estimating the level of IUU fishing: application to CCAMLR Subarea 48.3
highly skewed, with medians in the three years of 621, 2 852 and 550 birds respectively. 95% confidence ... limits were calculated to be 54–2 017, 468–1 779 and 22–487 tonnes respectively for fish and 162–7 752, 1 ... skewed, with medians in the three years of 621, 2 852 and 550 birds respectively. 95% confi dence limits ... were calculated to be 54–2 017, 468–1 779 and 22–487 tonnes respectively for fi sh and 162–7 752, 1 ... totale d’oiseaux estimée est fortement faussée, avec des médianes respectives de 621, 2 852 et 550 ... oiseaux pour les trois années. Le calcul des limites de l’intervalle de confi ance à 95% donne 54–2 017 ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 119–141 : Author(s): Agnew, D.J. and G.P. Kirkwood
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Investigations of required sampling regimes for environmental parameters
and pressure. Sampling daily maxima and minima would be sufficient to detect a 2 to 3°C change in ... minima would be sufficient to detect a 2 to 3°C change in monthly mean temperature over two years with a ... minimales pour deceler une variation de 2-3°C dans la temperature mensuelle moyenne sur deux ans avec une ... Bbl5IBJIeHH5I H3MeHeHH5I Cpe,llHeMeC5I4HOH TeMnepaTYpw B 2-3°C Ha npOT5I)I{eHHH ,llBYX JIeT npH 3Ha4HMOCTH ... en la temperatura minima media de 2-3°C en un periodo de mas de dos afios, con una significacion ex ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 561–573 : Author(s): Agnew, D.J.
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Length-at-age in juvenile Patagonian toothfish (Dissostichus eleginoides)
estimated to be from fish 1+ or 2+ years old, with mean total lengths of 32.5 cm and 41.3 cm respectively ... majority of the otoliths (83.6%) were estimated to be from fi sh 1+ or 2+ years old, with mean total ... poissons d’âge 1+ et 2+, avec des moyennes respectives de 32,5 cm et 41,3 cm de longueur totale. Aucune ... возрастом 1+ и 2+ со средними значениями общей длины соответственно 32.5 см и 41.3 см. Разницы между ... прогнозным и оценочным возрастами обнаружено не было. Нами был сделан вывод, что 2 доминирующих моды ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 1–10 : Author(s): Ashford, J., C. Jones, S. Bobko and I. Everson