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On the presence of Paralomis spinosissima and Paralomis formosa in catches taken during the Spanish survey Antártida 8611
seven hauls of the 29 made around Shag Rocks and in 20 of the 104 hauls made at South Georgia. P ... hauls where Paralomis spp. were found, together with the qualitative composition of the fish fauna ... . spinosissima was caught in seven hauls of the 29 made around Shag Rocks and in 20 of the 104 hauls made at ... surveyed. The location of the hauls where Paralomis spp. were found, together with the qualitative ... ilots Shag et dans 20 des 104 traits proches de la Georgie du Sud. P. formosa a et6 p&hP a deux ... ~panee~l f i B pai io~e WXHOW T e o p r ~ a - B 20. BMA P. formosa 0 6 n a s n ~ s a n c r l AeamAbI ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 165–173 : Autor(es): López Abellán, L.J. and E. Balguerías
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An assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank (CCAMLR Division 58.4.3b) based on fine-scale catch and effort data
). Cet article présente un résumé des données de capture et d'effort de pêche à échelle précise détenues ... highly concentrated effort and a third area of less con- centrated effort, together accounting for 80 ... % of all effort within a combined area of 53 000 km2 over the life of the fishery. Together, these ... in 2003/04, 49 (2.4%) were excluded from analysis due to missing data. Of these, 20 events had no ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 55–78 : Autor(es): McKinlay, J.P., D.C. Welsford, A.J. Constable and G.B. Nowara
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The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model
nominally beginning in 2007 and par- titioned into 20 years of fishing, using a can- didate catch allocation ... option and a specified allowable catch, followed by 20 years without fishing (SC-CAMLR, 2007a; Watters ... years. The current description uses the notation 1970(1) refers to the combination of year (1970) and ... Science, Vol. 20 (2013): 97–118 97 The sensITIvITy of mulTIple ouTpuT sTaTIsTIcs To InpuT parameTers ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 97–118 : Autor(es): Hill, S.L. and J. Matthews
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Assessing the power to detect systematic change in Adélie penguin foraging trip duration
variability among years was greater in the guard stage. Estimates of variability were used to explore the ... or trips sampled diminished rapidly when sample sizes were greater than 30 penguins and three trips ... years of post-impact monitoring to detect systematic change with high power unless one were willing to ... constructed and fitted to data collected at Béchervaise Island over a 12-year period when only natural ... number of impact (step, ramp and trend increases of 25%) and monitoring (1–10, 15, 20, 25 and 30 years ... –10, 15, 20, 25 and 30 years of post-impact ... ), and (iii) the effect size is reached after 30 years (0.75% increase per year; trend change), to ... . 208 gradual trending increase of 0.75% per year over 30 years (i.e. 25% increase after 30 years) is ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 201–215 : Autor(es): Southwell, C., J. Clarke and L.M. Emmerson
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Seabird interactions with longlining operations for Dissostichus eleginoides around South Georgia, April to May 1994
-seven line sets were observed and 98 deaths of seabirds were recorded over 20 sets; no deaths occurred ... albatrosses. The average mortality rate for the 20 sets was 0.48 birds/1 000 hooks and maximum mortality 3.12 ... each species in the vicinity of the ship was recorded every 30 minutes. Of the 20 sets for which ... Georgia (sets 5 to 15) during night-time setting. These occurred in aggregations of 20 to 30 birds ... deaths of seabirds were recorded over 20 sets; no deaths occurred during hauls. The 16 sets made at ... albatrosses. The average mortality rate for the 20 sets was 0.48 birds/l 000 hooks and maximum mortality ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 111–121 : Autor(es): Ashford, J.R., J.P. Croxall, P.S. Rubilar and C.A. Moreno
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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 ... observed in the length density represent different age cohorts separated by one year. File: 01ashford.pdf ... classes containing fi sh 1+ and 2+ years old respectively. A much smaller peak at TL ca. 20 cm ... + 14+ 20 4 25 2 30 12 1 35 102 7 40 6 33 45 1 65 3 50 5 3 55 7 1 60 2 9 3 65 2 5 1 70 2 1 1 70+ 1 1 ... year’s translucent zone). Total length (cm) 10 20 30 40 ... 50 60 70 80 90 Fr eq ue nc y 40 30 20 10 0 ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 1–10 : Autor(es): Ashford, J., C. Jones, S. Bobko and I. Everson
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Analysis of the diet of Champsocephalus gunnari at South Georgia in late summer from 1994 to 1997, Dr Eduardo L. Holmberg surveys
and Thysanoessa sp., which are known to be important alternative food in years of krill scarcity, as ... years of krill scarcity), intermediate in 1995 (below years of historically high abundance), and high in ... 1996 and 1997 (in line with years of high krill abundance). This information is well in accord with ... well as fish, was only occasional or negligible and varied from year to year. The spatial distribution ... fish (ranges 12-20 cm/l-2 years) was found in the catches during the RV Dr Eduardo L. Holmberg ... 30 years, even lower than in 1977/78 and 1991, years of krill 'shortage' (Figures 2 and 3) (Kock et ... four years, while krill biomass densities were comparable with those in the previous year and were ... important alternative food in years of krill scarcity, as well as fish, was only occasional or negligible ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 103–123 : Autor(es): Barrera-Oro, E., R. Casaux and E. Marschoff
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Beyond MSY: a consideration of definitions of management objectives
Article II of the CCAMLR Convention. The criteria will depend on whether the main concern is with ... nominal effort each year, based on the values of F and fishing effort in the most recent years. Since ... realistic population models, taking account of the objectives set out in Article 11 of the CCAMLR ... resource management to administrators and industry. In later years it has come under increasing ... few months or years of life, as eggs, larvae or juveniles, the fish are too small to be caught by ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 299-322 : Autor(es): Gulland, J.A.
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Effects of different harvesting strategies on the mackerel icefish Champsocephalus gunnari around South Georgia
the mackerel icefish (Champsocephalus gunnari) have been simulated for a period of 30 years. These ... 50% F 0.1 with F increasing three or five years after a good recruitment; pulse fishing at an ... interval of three years with no fishing in between; and changes in net selectivity resulting in a shift in ... , should not occur earlier than four years after a good recruitment. A forward shift in partial recruitment ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 77–100 : Autor(es): Köster, F.W. and K.-H. Kock
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Marine mammals and demersal longline fishery interactions in Crozet and Kerguelen Exclusive Economic Zones: an assessment of depredation levels
together. An extensive photo-identifi cation effort, primarily focussing on killer whales, allowed a total ... interacting was 8.2 ± 4.7 (n = 552, range 1–20) and 4.1 ± 3.4 (n = 737, range 1–30) individuals respectively ... sector and marine mammal species. 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 11 12 13 14 15 16 17 ... sperm whales Fishing sector Le ve l o f i nt er ac tio n 90% 80% 70% 60% 50% 40% 30% 20 ... identifi ed on 23 different occa- sions). 0 5 10 15 20 25 30 2 3 4 5 6 7 8 9 10 11 12 13 14 20 21 ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 67–82 : Autor(es): Roche, C., C. Guinet, N. Gasco and G. Duhamel