Search results
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A fine-scale model of the overlap between penguin foraging demands and the krill fishery in the South Shetland Islands and Antarctic Peninsula
penguins, and that this overlap has been decreasing since 1988. File: 07agnew-phegan.pdf ... posibles zonas de alimentacion de 10s pingiiinos y la distribution de la pesqueria de kril en la SubArea ... creado un metodo alternativo para calcular un indice de la interaccion entre la pesqueria y 10s ... consumidores del recurso kril y se basa en un mode10 que considera en detalle 10s habitos de alimentacion de ... 10s pingiiinos junto con la ubicaci6n de las capturas. Este analisis demuestra que la superposicion ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 99–110 : Author(s): Agnew, D.J. and G. Phegan
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An assessment of toothfish in Subarea 48.3 using CASAL
collated by 10 cm length class (Table 2). The scanned catch in each length class each year, required ... ., 2006a) to be between 5 and 11%. A conservative value of 10% (i.e. immediate tagging survivorship of 90 ... steepness. There has been a small decrease. Recent harvest rates have been around 0.08–0.15 ... 9), the confidence intervals overlap with all the results shown in Table 10. The minor discrepancies are probably ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 65–95 : Author(s): Hillary, R.M., G.P. Kirkwood and D.J. Agnew
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Size compositions of males and females in the course of the life cycle of Euphausia superba
talla y sexo durante el cic10 reproductor completo. Las variaciones observadas estan relacionadas con ... la fases de madurez del krill en su cic10 reproductor. La informaci6n sobre la composici6n por sexos ... , the specimen was counted as male. Comprehensive examinations were undertaken periodically after each 8 to 10 ... I / \ / I \ ,'/ \ I '" " I ..... _-1 , -..., '-- ..... ,t) J --I • I i I i I • • i i I i I 8 .!J ,10 .f~ J2- % 1'1 ~g1 I I=VI ;0 'i FVI /) ~ 6"34 ~ 21 I I 10-1 10., J I \ 9 .t1J ~i 12 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 3–16 : Author(s): Makarov, R.R.
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A hybrid approach to acoustic classification and length estimation of krill
- tor with 38 and 120 kHz dual-beam transducers. Echo signals were recorded, each ping from 10 to 160 ... with 38 and 120 kHz split- beam, and 200 kHz single-beam subsystems. Echo signals were integrated from 10 ... in 10 hauls (15 swarms were sampled) and E. crystallorophias in three hauls (six swarms were sampled ... / / 10log ;1 N fj fi m m fj fi fj fi r S S f N Δ Δ . The components of the Δ vectors were divided ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 33–58 : Author(s): Azzali, M., I. Leonori and G. Lanciani
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Analysis of trends in Japanese krill fishery CPUE data, and its possible use as a krill abundance index
it was not recorded in the logbook. As it is normally about 10 min before and after towing (Japan Deep Sea Trawlers ... (Verbyla et al., 1999). The LMM was fi tted to the log10 transformed values of CPD, CPT and CPTT while ... errors, on the Log10 scale where relevant, were obtained using samm’s predict() function. The appendix ... fi t. Although the models seemed to be acceptable, qqplots of Log10CPT, Log10CPD, Log10 ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 1–28 : Author(s): Kawaguchi, S., S. Candy, S. Nicol, K. Taki and M. Naganobu
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Distribution of mackerel icefish (Champsocephalus gunnari) (Channichthyidae) around South Georgia at various stages of its life cycle
Georgia panel inserted in the codend (mesh opening of 10 mm) and was modifi ed to reduce damage ... 0 94 G iz hi ga M ea n le ng th (m m ) 91 10 0 96 95 25 / 5– 8/ 6/ 19 84 L en gt ... , % o f f is h of d om in an t l en gt h 80 m m 90 m m 46 % 29 % 90 m m 10 0 m m 30 .5 % 33 ... % 80 m m 90 m m 10 0 m m 31 % 18 % 26 % 80 m m 90 m m 21 % 49 % N um ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 49–69 : Author(s): Frolkina, Zh.A
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A preliminary assessment of age and growth of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica
from 4.6 to 22.9 cm. Pronounced modes in the length-frequency distribution occurred at 7.1–7.5, 10 ... -frequency distribution occurred at 7.1–7.5, 10.6–11.0 and 15.1–15.5 cm. Mean lengths ... 2.07 15 12.3 18.4 15.5–21.9 2.23 10 13.3 19.9 17.6–22.9 1.63 8 14.3 19.2 17.5–21.2 1.71 4 79 ... m on au t S ea 2 A ll - 3– 7 33 .8 - 0. 10 - 0. 07 - M - - 22 ... from 4.6 to 22.9 cm. Pronounced modes in the lengthfrequency distribution occurred at 7.1–7.5, 10 ... . This was because about 20% of the sam- ple was from small fish (≤10 cm SL) with poorly developed gonads ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 75–86 : Author(s): Sutton, C.P. and P.L. Horn
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Age, growth and mortality of Patagonian toothfish (Dissostichus eleginoides) caught off Kerguelen
130 Total 25 34 60 46 37 32 22 15 8 7 3 2 4 4 8 3 7 2 Prop. 0.07 0.10 0.18 ... 0.14 0.11 0.10 0.07 0.04 0.02 0.02 0.01 0.01 0.01 0.01 0.02 0.01 0.02 0.01 TL 20 21 22 23 24 25 26 27 ... ,...,n; lj is the proportion of total length j measured in intervals of 10 cm; and qij is the proportion ... the data remained reasonably symmetric, and ni ≥ 10 for ages i = 2…17, parameter estimates should ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 29–41 : Author(s): Ashford, J., G. Duhamel, C. Jones and S. Bobko
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Homogeneity of body length composition of Antarctic krill within the commercial zone
11.807 0.4613 9 b 2 14 9.738 0.7811 10 b 2 13 19.619 0.1051 11 m 2 12 11.273 0.5057 12 m 2 11 14.702 ... 0.1976 13 b 2 14 24.603 0.0387* 14 m 2 11 11.809 0.3782 15 m 2 11 10.615 0.4761 16 m 2 9 10 ... .069 0.3449 17 m 2 12 10.334 0.5867 18 m 2 13 6.582 0.9224 19 m 2 10 13.961 0.1748 20 b 2 11 13.399 0.2680 ... 21 b 2 14 12.040 0.6031 22 b 2 12 11.484 0.4880 23 b 2 15 10.535 0.7848 24 b 2 14 6.216 0.9608 25 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 17–28 : Author(s): Ichii, T.
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Small scale krill surveys: simulations based on observed euphausiid distributions
surveys at different positions with regard to the swarms. 247 3. RESULTS The results of 10 000 ... . Everson (1987) estimates that 10 transects in a CEMP survey could be completed in 10 days. Thus even ... of krill density calculated from 10 000 random transects on four separate orientations of three kriU ... Deviation Method Used in Surveyed Area Krill Density After of Density 10 000 Transects (0') Parallel ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 245–256 : Author(s): Agnew, D.J. and S. Nicol