Résultats de la recherche

1. Interactions of Patagonian toothfish fisheries with killer and sperm whales in the Crozet Islands Exclusive Economic Zone: an assessment of depredation levels and insights on possible mitigation strategies

   . Tixier1, N. Gasco2, G. Duhamel2, M. Viviant1, M. Authier1 and C. Guinet1 1 Centre d’Etudes Biologiques ... series of 1 km long sections fitted with approxi- mately 1 000 hooks each. Previous studies showed ... methods From 1 September 2003 to 31 August 2008, 4 289 lines were hauled by the seven legal long- liners ... season runs from 1 September to 31 August. Observer protocol The data were collected by fishery ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 179–195 : Auteur(s): Tixier, P., N. Gasco, G. Duhamel, M. Viviant, M. Authier and C. Guinet

2. Integrating Count Effort by Seasonally Correcting Animal Population Estimates (ICESCAPE): a method for estimating abundance and its uncertainty from count data using Adélie penguins as a case study

   2 3 4 5 6 7 a b c d . . . . . . . 1 0.9 0.8 min DF 0.6 1 0.8 max Date uncert ... 2 3 4 5 6 7 a b c d Figure 1: Representation of the ICESCAPE estimation procedure. The ... (N̂) by: ˆ ˆ ˆ ˆ ˆ. .area a da C N p p p = (1) where ˆ areap represents the estimator ... denominator adjustment terms are bounded >0 and ≤1, while ˆ ap is bounded >0 with an upper bound determined ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 213–227 : Auteur(s): McKinlay, J., C. Southwell and R. Trebilco

3. Modelling catch and effort data using generalised linear models, the Tweedie distribution, random vessel effects and random stratum-by-year effects

   . For 1 < λ < 2 this model is equivalent to assuming a compound Poisson-gamma distribution (i.e ... 0.2 0.4 1. 26 3* 10 ^6 1. 26 5* 10 ^6 1. 26 7* 10 ^6 -0.8 -0.6 -0.4 -0.2 0.0 0.1 0.2 0.3 0.4 ... effort as an offset. For 1 < λ < 2 this model is equivalent to assuming a compound Poisson-gamma ... avec le log compensateur de l’effort de pêche. Pour 1 < λ < 2, ce modèle équivaut à présumer une ... логарифмической функции связи с коррекцией на логарифм усилия. Для 1 < λ < 2 данная модель эквивалентна ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 59–80 : Auteur(s): Candy, S.G

4. Analysis of trends in Japanese krill fishery CPUE data, and its possible use as a krill abundance index

   ad S SM U s. -6 7 -6 6 -6 5 -6 4 -6 3 -6 2 -6 1 -6 0 -5 9 -5 8 -5 7 -5 6 -5 5 -5 4 ... -5 3 -5 2 -5 1 -5 0 -6 8 -6 6 -6 4 -6 2 -6 0 -5 8 -5 6 -5 4 -5 2 -5 0 -4 8 -4 6 -4 4 ... and TSDT for the whole of Area 48 across years. 0 1 2 3 4 5 6 7 8 9 10 19 80 /8 1 19 81 ... 89 /9 0 19 90 /9 1 19 91 /9 2 19 92 /9 3 19 93 /9 4 19 94 /9 5 19 95 /9 6 19 96 /9 7 ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 1–28 : Auteur(s): Kawaguchi, S., S. Candy, S. Nicol, K. Taki and M. Naganobu

5. Areal and seasonal extent of sea-ice cover off the northwestern side of the Antarctic Peninsula: 1979 to 1996

   measuring 1.25 x 10 6 km 2 off the northwestern side of the Antarctic Peninsula indicates that there were ... 6 km 2 /month. This index may be used in conjunction with studies of variability in biological ... MeCTO YeTbIpe IIepkiOAa o 6 m ~ p ~ o r o JIenXHOrO IIOKpOBa. O T M ~ Y ~ H ~ H3MeHYMBOCTb CPOKOB H ... oC06eHHoCTefi neARHOr0 IIOKpOBa B Mope 6 e n n E I ~ ~ r a y 3 e ~ a . nepHonb1 0 6 m ~ p ~ o r o 3HMHerO ... ? ~ ~ JIeflRHOfi IIOKPOB B IIepHOA MeXny nepHoAaMH o 6 m ~ p ~ o r o n e n m o r o noKposa cHamancx BO B T O P O ... o 6 m ~ p ~ o r o neAxHoro noKposa He k i 3 ~ e ~ a n a c b . rononbre Kpnnbre p8CnpOCTpaHeHHR ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 65–73 : Auteur(s): Hewitt, R

6. A statistical method for estimating the level of IUU fishing: application to CCAMLR Subarea 48.3

   measures. Three years were analysed: 1998/99, 1999/2000 and 2000/01. Each year fully covered the period 1 ... catches attributable to IUU fishing were 776, 1 019 and 198 tonnes in 1998/99, 1999/2000 and 2000/01 ... respectively (a total over the three years of 1 994 tonnes). The distribution of estimated total bird catch was ... limits were calculated to be 54–2 017, 468–1 779 and 22–487 tonnes respectively for fish and 162–7 752, 1 ... been in Areas 6, 1 or 3. Furthermore, although fi shing vessels, cruise ships and research vessels do ... 91 .9 1 14 2 1. 54 5 9 S C is ne V er de 20 -M ar -9 7 30 -M ay -9 7 6 99 .8 ... 4 10 .2 44 4 0. 39 1 S E lq ui 16 -M ar -9 7 15 -M ay -9 7 7 18 3. 6 73 ... 58 .0 55 43 0. 74 1 6 S Is la Is ab el 01 -M ar -9 7 09 -A pr -9 7 11 18 ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 119–141 : Auteur(s): Agnew, D.J. and G.P. Kirkwood

7. A hypothetical life cycle for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region

   of eggs and larvae over a 6–24 month period were investigated using an oceanic circulation model ... probably remain in the northern area for 6–18 months before migrating back to the slope to regain condition ... the text and their locations after 24 months are summarised in Figure 6. The deeper releases at 1 ... -history characteristics of toothfish, the drift of eggs and larvae over a 6–24 month period were ... area for 6–18 months before migrating back to the slope to regain condition. Résumé Divers aspects ... , la dérive des œufs et des larves sur une période de 6 à 24 mois est étudiée au moyen d'un modèle de ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 35–53 : Auteur(s): Hanchet, S.M., G.J. Rickard, J.M. Fenaughty, A. Dunn and M.J. Williams

8. Moulting interval and growth of juvenile Antarctic krill fed different concentrations of the diatom Phaenodactylum tricornutum in the laboratory

   –5.0 mgC 1 –1. Intermoult period (IP) decreased, but an increment of body length per moult (∆BL) of ... juvenile krill increased, up to a concentration of 1.0 mgC 1 –1. No further effect of food concentrations ... on IP or (∆BL was seen at concentration beyond 1.0 mgC 1 –1. IP plateaued at 23.8 days and (∆BL ... 0.047 mm day –1, which is too slow to support the hypothesised 2-year life-span of this animal in the ... superba) were fed Phaeodactylum tricornutum, at concentrations ranging from 0.0-5.0 mgC 1 1. Intermoult ... to a concentration of 1.0 mgC 1-1 • No further effect of food concentrations on IP or 6BL was seen ... at concentration beyond 1.0 mgC 1-1 • IP plateaued at 23.8 days and 6BL, 1.14mm. From these results ... concentrations allant de 0.0-5.0 mgC 1-1. La periode d' entremue (IP) a diminue mais la longueur corporelle par ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 223-225 : Auteur(s): Ikeda, T. and P.G. Thomas

9. The survivorship of rays discarded from the South Georgia longline fishery

   waters shallower than 1 300 m (i.e. 1 200–1 300 m), 46% in waters 1 300–1 500 m, and 24% in waters ... between 1 500 and 2 000 m. These findings support CCAMLR’s recommendation that skates and rays be cut from ... . 6 0. 8 1. 0 3 3 4 3 13 3 2 1 3 4 44 3 4 1 2 3 1 4 83 2 2 13 5 5 1.0 0.8 0.6 ... 2000 -4 -2 0 2 4 wind s( w in d) 0 1 2 3 4 5 6 -1 0 -8 -6 -4 -2 0 pa rti al fo r s ex ... % in waters shallower than 1 300 m (i.e. 1 200–1 300 m), 46% in waters 1 300–1 500 m, and 24% in ... waters between 1 500 and 2 000 m. These fi ndings support CCAMLR’s recommendation that skates and rays ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 155–164 : Auteur(s): Endicott, M. and D.J. Agnew

10. Results of a longline survey on seamounts in the southeast Atlantic and in Subarea 48.6 and Division 58.4.4

    October and 1 December 1997, and several seamounts were surveyed to the south of Africa: close to the ... the isobaths and in depths down to 1 500-2 000 m. Numerically, catches were dominated by Patagonian ... vary from 1:1. Females accounted for 70% of individuals of more than 90 cm in total length. The stratum ... between areas. Catch per unit effort ranged from a maximum value of 359 kg/1 000 hooks on Ob and Lena ... n b I K a q (Dissostichus eleginoides): 6b1no B b I n O B n e H O 2822 0 ~ 0 6 1 1 3 T 0 r 0 B ... ~ I ~ ~ - 185 K r / 1 000 K p I O q K O B Ha 6 a H K e M e ~ e o p . Resumen Entre e122 de ... (including by depth strata and by area for all species caught. 6 teleosts, 1 channichthys and 1 Rajidae) and ... 5.78 1 0.17 6 1.02 No. Hooks 7 500 3 750 3 750 3 750 3 750 3 750 3 750 3 750 3 750 3 ...

    Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 99–116 : Auteur(s): López Abellán, L.J. and J.F. González Jiménez

Pages