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Results of fish larvae sampling by means of fine-meshed samplers attached to a bottom trawl
: 134 p. 73 Table 1: Station 19 20 22 24 25 26 30 31 32 33 34 35 36 37 38 45 ... WG-FSA-88/20 RESULTS OF FISH LARVAE SAMPLING BY MEANS ... using the 12 mm mesh, whereas the 0.505 mm net produced large samples. From station 30 onwards ... damaged during gear operations and then replaced before station 30. The 12 mm net was torn up again when ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 69-86 : Autor(es): Ślósarczyk, W. and I. Wójcik
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An assessment of the impact of krill fishery on penguins in the South Shetlands
tonnes/10-20-day period), the present catch rate (≤10 x 10 3 tonnes/1O-day period) is smaller by one or ... 20 or 30 X 30 n miles from recent surveys (1989/90 and 1990/91). The krill biomass for each of ... X 103 tonnes) and its variability (the order of 100 X 103 tonnes/10-20-day period), the present ... /periode de 10-20 jours), le taux de capture actuel (S10 X 103 tonnes/pkriode de 10 jours) est infkrieur ... 20 dias), el nivel actual de captura (510 X 103 toneladas por periodo de 10 dias) resulta inferior ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 107–128 : Autor(es): Ichii, T., M. Naganobu and T. Ogishima
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A study of Patagonian toothfish (Dissostichus eleginoides) post-tagging survivorship in Subarea 48.3
mark–recapture studies have been under way for several years around Heard Island, South Georgia, and ... .) (Hoag, 1975; Kaimmer and Trumble, 1998). Such studies have identified that animal size, condition and ... - dence of having recovered from serious injuries in previous years including extensive scarring around ... that had been tagged and released in earlier years, or were assumed to be fish that had fallen off the ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 279–289 : Autor(es): Agnew, D.J., J. Moir Clark, P.A. McCarthy, M. Unwin, M. Ward, L. Jones, G. Breedt, S. Du Plessis, J. Van Heerdon and G. Moreno
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An assessment of CCAMLR measures employed to mitigate seabird mortality in longlining operations for Dissostichus eleginoides around South Georgia
mortality rate was found between years and between months, but the presence of a streamer line was not ... lasting 20 minutes each over an observation period of 1.5 to 2 hours. Observations were made from the ... . For sampling units, the mother line was divided into lengths of 30 coils using sequences of three ... marked connecting lines. At the start of hauling, four 30-coil lengths were randomly selected for ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 217–230 : Autor(es): Ashford, J.R. and J.P. Croxall
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Population genetic structure of Patagonian toothfish in the West Indian Ocean sector of the Southern Ocean
les groupes géographiques (ADNmt φCT = –0,003; microsatellite φCT = 0,004), ce qui met en évidence ... increased in economic value since the start of commercial exploitation, approximately 17 years ago, within ... fi sh had been at liberty for 0.7 to 3.8 years, demonstrating that under some circumstances D ... the NADH dehydrogenase subunit 2 gene and was amplifi ed using the t-Met primer of Park et al ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 21–32 : Autor(es): Appleyard, S.A., R. Williams and R.D. Ward
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Mitigation of seabird captures during hauling in CCAMLR longline fisheries
/ Description: In recent years there has been an increased focus on reducing seabird captures that occur during ... MRAG Ltd 18 Queen Street, London W1J 5PN United Kingdom Abstract In recent years there has been an ... Type I BEDs caught 43 seabirds, on the haul, while the 20 vessels using Type II BEDs caught 28 ... BEDs have been used in fisheries in Division 58.5.2 over the period of three years. Discussion ... effective BEDs as outlined above and to provide examples of designs that met those specifications. Thus ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 155–162 : Autor(es): Reid, E., B. Sullivan and J. Clark
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Observation of seabirds in the Southern Ocean in 1988/89
:00; 12:00, 16:00 and 20:00 ship-time, while sailing between Antarctic stations and while en route to ... . Thirty minute observations were made daily during daylight hours at 8:00; 12:00,16:00 and 20:00 ship ... OT 60° 1O.1IJ.) o6RacTH IO)l{Horo OKeaHa. Ha6RIO,l\eHH5I, no 30 MHH. Ka)l{,l\oe, BbInORH5IRHCb e)l ... {e,l\HeBHO B CBeTRoe BpeM5I CYTOK 8, 12, 16, 20 qaCOB no CY,l\OBOMY BpeMeHH, BO BpeM.5I nepeXO,l\OB ... 20:00 horas (hora del barco), mientras se navegaba entre las estaciones antarticas y puertos escalas ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 521–542 : Autor(es): Vagin, A.V. and V.V. Popov
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Use of indices of predator status and performance in CCAMLR fishery management
of likely operational constraints on fisheries. File: 20-Croxall.pdf ... environment, evidence for short-term changes (year-to-year differences or trends over three to five years ... last year and with average(s) of previous years. Determine level of statistical significance of ... of resources should not be detrimental to natural consumers (see Article 11, paragraph 3{b)). This ... over several years (see SCAR 1979, p. 306; BIOMASS 1980, p. 16; BIOMASS 1982, p. 6; SC-CAMLR-IV, p ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 353–365 : Autor(es): Croxall, J.P.
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Modelling catch and effort data using generalised linear models, the Tweedie distribution, random vessel effects and random stratum-by-year effects
together with ‘baseline’ parameter estimates, their variance–covariance matrix, and the inverse-link ... distribution, random vessel effects and random stratum-by-year effects Abstract / Description: The current ... standardised CPUE estimates and their precision can be obtained from the ‘fishing year’ parameter estimates ... as a result of the imbalance in the number of hauls in the year-by-vessel cross-classification ... 20 30 40 50 -0 .6 -0 .4 -0 .2 0. 0 0. 2 0. 4 0. 6 Ship index R an do n ef fe ct e st ... im at e 0 10 20 30 ... early years of the fi shery and the effect this can have on ‘treatment’ (i.e. YEAR) fi xed-effect ... ’ parameter estimates together with ‘baseline’ parameter estimates, their variance–covariance matrix, and the ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 59–80 : Autor(es): Candy, S.G
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Maximum entropy reconstructions of krill distribution and estimates of krill density from acoustic surveys at South Georgia, 1996–2000
be exploited together with new known data (Sivia, 1996). Furthermore, Skilling (1988) has shown ... (MaxEnt) have been used successfully for many years in numerous branches of physical science to ... ( 19 97 ), JR 28 ( 19 98 ), JR 38 ( 19 99 ) an d A T L D ( 20 00 ). A xe s ar e ... . Although there are some very large differences in mean krill density between years (ranging from 36 to 12 ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 91–100 : Autor(es): Wafy, M.H., A.S. Brierley, S.F. Gull and J.L. Watkins