Résultats de la recherche
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Temporal variability and the interrelationships between CEMP parameters collected on Adélie penguins at Béchervaise Island
examined for Adélie penguins over a period of 12 years. Data were collected from 1990/91 to 2001/02 at ... are critical for chick survival. There was a strong negative correlation between female foraging trip ... breeding success and foraging trip duration was low for males. Male foraging trips during the crèche period ... for understanding breeding success and the interrelationships between CEMP parameters. File ... 90 30 / 11 / 19 90 05 / 12 / 19 90 20 / 12 / 19 90 25 / 11 / 19 90 18 / 12 ... 97 30 / 11 / 19 97 03 / 12 / 19 97 20 / 12 / 19 97 21 / 11 / 19 97 20 / 12 ... 00 04 / 12 / 20 00 04 / 01 / 20 01 30 / 11 / 20 00 14 / 12 / 20 00 13 / 2 ... 80 25 days for seasons 1992/93, 1993/94 and 1994/95 respectively to ensure that a representative ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 75–90 : Auteur(s): Emmerson, L.M., J. Clarke, K.R. Kerry and C. Southwell
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Data on krill (Euphausia superba Dana) consumption by coastal fishes in Division 58.4.2 (Kosmonavtov and Sodruzhestva Seas)
calculated for a depth range of 100 to 500 metres in waters between 30 and 80°E. Krill consumption was ... krill consumed is between 166 and 450 million tonnes; of this amount fish consume from 30 to 32 million ... fish and other species may differ significantly from those for specific areas. Localised assessments of ... krill consumption have thus far only been carried out for the Scotia and Lazarev Seas (Kock, 1985 ... for a depth range of 100 to 500 metres in waters between 30 and 80°B. Krill consumption was estimated ... aguas entre 30 y 80°B. Solamente se calcul6 el consumo de krill durante el verano (diciembre a abril ... this amount fish consumed 30 to 32 million tonnes. For the most part these figures are based on data ... daily krill requirement for fish in March was 90% of daily krill production. This would seem to explain ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 305–319 : Auteur(s): Pakhomov, Y.A., V.A. Bibik and V.V. Gerasimchuk
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Small scale krill surveys: simulations based on observed euphausiid distributions
Abstract / Description: An observed distribution of aggregations of the euphausiid, Meganyctiphanes ... lowest for the survey design utilising parallel transects set at right angles to the long axis of the ... transects passing through three distributions each of which is given four rotations. The results indicate ... involved searching each pass for krill occurrence. Radial transects were designed on a 90° arc from the ... as a percentage and taken to represent mean krill density for the transect. This is an equivalent ... transects required to reliably detect changes of 20%, for instance, is 28 when the CV is 0.3 and 310 when ... 0 0.0 0.1 20% change in mean density 30% 40% 50 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 245–256 : Auteur(s): Agnew, D.J. and S. Nicol
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A post-processing method to remove interference noise from acoustic data collected from Antarctic krill fishing vessels
data has been recognised as an important way to estimate the distribution and relative abundance of ... the utility of fishing-vessel-based acoustic data for a range of objectives. File: Wang et al.pdf ... 30 Wang et al. Figure 7: Frequency distribution of mean Sv (a) and variation of MVBS (b) for 20 ... –60 –40 –20 Sv (dB) 0 5 10 15 20 -100 -90 -80 ... of an attenuated signal may be compensated for by using the strength of the seabed return signal ... (Tmin) were set as –70 dB for 120 kHz as advised by Lawson et al. (2008) and –80 dB for both 38 and 70 ...
Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 17–30 : Auteur(s): Wang, X., J. Zhang and X. Zhao
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The Kerguelen database
. Length frequency distributions of the species are also provided for the period 1979/80–1985/86. File: 02 ... Paper Title: The Kerguelen database Abstract / Description: A database for fishery statistics ... and biological data for the Kerguelen EEZ has been operating in France since 1979. At the end of the ... representation of these data is presented for several parameters including a distribution of the fishing effort ... distributions of the species are also provided for the period 1979/80-1985/86. * * * * * * * * * * LA BASE ... effort is represented in an artificial map (see Figure 2) where the total trawl number is plotted for ... important species. The analysis of LFD for C. gunnari contains an important amount of information even ... the CPUE Catches per species from split-year 1979/80 to 1985/86. Values of the total fishing ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 23-54 : Auteur(s): Duhamel, G.
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Effects of weather and sea-ice on the reproductive performance of the Adélie penguin at Edmonson Point, Ross Sea
0 10 20 30 40 50 60 70 80 W in d s p e e d ( k n o ts ) n = 97 n = 76 ... success and fi rst and second incubation shift duration were measured for at least 100 nests each year ... /99 0 2 4 6 8 10 12 14 16 N u m b e r o f d e a d c h ic k s 0 10 20 30 40 ... 2 4 6 8 10 12 14 16 N u m b e r o f d e a d c h ic k s 0 10 20 30 40 50 60 ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 99–109 : Auteur(s): Olmastroni, S., F. Pezzo, V. Volpi and S. Focardi
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Preliminary results of investigations of the Federal Republic of Germany on Notothenia rossii marmorata (Fischer, 1885) in January/February 1985
further basic data needed for stock assessment purposes, to assess the actual size of Notothenia rossii ... consisted of age classes V – VIII. It seems doubtful if the conservation measures adopted in 1984 will ... rebuild the stock around South Georgia might be successful. Although reported catches in recent years have ... the species for a number of years. An alLerrmtive approach might be Lu close cerlain areas for ... WP.re probahly r:ommerc.i.ally fished there in 1979/80 for the f.i.n,L time. Stock size:o around the ... Lengths at sexual maturity for South Georgia and Elephant Island and age at sexu;il l'l8tur.ity for ... (years)
age at sexual maturity (L 50 , A 50 ) in Notothenia russii ~outh ... Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 33-57 : Auteur(s): Kock, K.-H.
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Patagonian toothfish in international waters of the Southwest Indian Ocean (Statistical Area 51)
(Statistical Area 51) Abstract / Description: Experimental fishing for Patagonian toothfish (Dissostichus ... cm TL for females. % F re qu en cy 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 ... gravid) and 5 (spent). Lengths for males at these stages ranged from 70 to 140 cm TL and from 80 to 150 ... 130 135 140 145 150 155 160 165 170 175 0 20 40 60 80 100 0 5 10 15 20 25 Ob-Lena Ob-Lena ... . 45 55 65 75 85 95 105 115 125 135 145 155 165 175 0% 20% 40% 60% 80% 100% Males Females TL ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 207–214 : Auteur(s): López Abellán, L.J
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Distribution and abundance of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean
Indian Ocean Abstract / Description: This paper provides an assessment of the distribution and abundance ... . MATERIALS AND METHODS In 1999 an exploratory trawl fishery for Dissostichus spp. was undertaken at ... species. Until ACKNOWLEDGEMENTS We would like to thank Kevin Sullivan and an anonymous reviewer for ... in recent years due to the increase in longline fisheries for toothfish (Dissostichus spp.) in the ... 7050 Tasmania, Australia Abstract This paper provides an assessment of the distribution and ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 171–178 : Auteur(s): van Wijk, E.M., A.J. Constable, R. Williams and T. Lamb
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Biomass, abundance and distribution of fish in the Kerguelen Islands EEZ (CCAMLR Statistical Division 58.5.1)
stratified stations. Estimates of biomass and abundance were produced for eight commercial species. The total ... biomass was 245 000 tonnes and Patagonian toothfish (Dissostichus eleginoides) accounted for half of the ... distribution of species, commercial or not, that are important in the ecosystem and are of major interest for ... for L. squamifrons for the two deep-sea strata (north – 396–22 344 tonnes for an estimated abun ... - dance of 1 654 tonnes; south – 157–6 962 tonnes for an estimated abundance of 837 tonnes). For the ... 10.21 0 10 000 20 000 30 000 40 000 50 000 To nn es TOP ANI NOS NOR BEA BYR MCC LIC Species ... the southern part of the shelf zone for the 2+ and 4/5 age classes but the older fish are less ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 1–32 : Auteur(s): Duhamel, G. and M. Hautecoeur