Résultats de la recherche
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Hook selectivity in the longline fishery of Dissostichus eleginoides (Nototheniidae) off the Chilean coast
Paper Title: Hook selectivity in the longline fishery of Dissostichus eleginoides (Nototheniidae ... Chilean fisheries of the Patagonian toothfish, Dissostichus eleginoides is reviewed in order to study ... selectivity of different types and sizes of hooks used in longlines. Original data obtained during 1991 off ... % more efficient than hooks No. 4. Using different bait does not result in significant differences. It is ... , 1898) in Chile started as early as 1955, the year in which the exploration of the continental slope ... 50~-------------------------------------------- 40 30 20 10 0 40 50 40 30 20 10 ... hooks in the VIII Region is presented in Table 3 together with mean length. Length frequency ... WG-FSA-91/11 HOOK SELECTIVITY IN THE LONGLINE FISHERY ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 107–119 : Auteur(s): Moreno, C.A.
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Diet study of Antarctic toothfish caught in the east Antarctic based on stomach content, fatty acid and stable isotope analyses
Paper Title: Diet study of Antarctic toothfish caught in the east Antarctic based on stomach ... for Antarctic toothfish (Dissostichus mawsoni) in the small-scale research unit (SSRU) 5841C in the ... lesser extent squid. FA profiles in muscle tissues of Antarctic toothfish were very similar to those of ... toothfish and the trophic relationship between the toothfish and other species in the east Antarctic using ... a lesser extent squid. FA profiles in muscle tissues of Antarctic toothfish were Park et al. 30 ... , 1987; Michener and Schell, 1994). δ13C in an animal usually occurs within 1‰ compared with that of ... analyses to infer diet of Antarctic tooth- fish caught in the southern Ross Sea. CCAMLR Science, 20: 21–36 ... ° 95°E Sampling site 5841C 0 1 2 3 4 5 6 0 10 20 30 (32) Cu m ul at iv e n um be r o f ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 29–44 : Auteur(s): Park, H.J. , I. Yeon, E. Han, Y.J. Lee, S.M. Hanchet, G.W. Baeck, Y. Kwon, S.G. Choi, D.W. Lee and C.K. Kang*
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Preliminary report on biological observations and exploratory fishing data collected in the South Georgia area during the 1985/86 cruise of MT Carina
in the South Georgia area during the 1985/86 cruise of MT Carina Abstract / Description: A fish ... survey in South Georgia waters was undertaken from November 1985 to January 1986 as a part of the on ... mesh sizes (47 and 60 mm) were used with a bottom trawl of 32 m head rope. Catch data were collected in ... % while N. rossii and D. eleginoides were present only as by-catch. In sampling catches two length groups ... + Age groups (years) O~~==~,==~==~,===;~~,==~==~,==~~ Figure 8 20 30 40 ~ Total length (cm ... ) within the whole shelf area of South Georgia. In the 1983/84 season, as in the previous year, the ... . georgianus in research catches in subdivision 61 consisted of three separate length groups: 20-24, 32-41 ... in those two seasons consisted of the year class of 1980 (Sosinski, unpublished). In the catches ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 65-97 : Auteur(s): Kreft, K. and J. Szynaka
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Preliminary model of krill fishery behaviour in Subarea 48.1
Elephant Islands in alternate years would result in an average yearly catch similar to that at present ... Paper Title: Preliminary model of krill fishery behaviour in Subarea 48.1 Abstract / Description ... : A simple model of the behaviour of the krill fishery in FAO Statistical Subarea 48.1 (South Shetland ... catches in the subarea. A number of management scenarios are considered which involve the closure of (i) a ... 48.1). Although only about 20% of the South Atlantic catch has been taken in Subarea 48.1, the catch ... periods (months were assumed to be 30 days long). Data from the Chilean fishery in Subarea 48.1 were ... Livingston and Elephant Islands in alternate years would result in an average yearly catch similar to that ... Elephant Islands, the two major fishing areas, in alternate years. Closures were modelled by ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 71–79 : Auteur(s): Agnew, D.J. and V.H. Marín
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Size compositions of males and females in the course of the life cycle of Euphausia superba
Paper Title: Size compositions of males and females in the course of the life cycle of Euphausia ... superba Abstract / Description: Earlier studies did not pay attention to differences in size composition ... of Euphausia superba populations by sex and its seasonal variability. In this paper variations in ... , using samples from different years. The observed variations were related to stages of krill maturity ... ..... ... %30~ ! \:'" ,,-00, '"1 '\ 64-38S 47-00E if 16~ ~ 13.1.84 ,,/ \ 16.1.84 166 I ...:---'\. \! 20 ... ; / .- 10 .- I " I ,/ 0 0 .. n m", A BeD ... % % 30 100 54-13S 35-23W ci" 25 11.9.70 'f 48 20 ... \ \ , 19 , SI 60"" 0 AB C D 0 JII ., '(,,30 100 (lO 60-00S 55-
20 18.12.74 !i'107 10 ... 0 I 3/1 ... A BeD % 58-01S 40-S6w 30 2.1.75 cl' 32 ~ 19 100 20 6b 10 0 0 JI IJ/I SI ... Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 3–16 : Auteur(s): Makarov, R.R.
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Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea
Paper Title: Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the ... Bay) at 38, 120 and 200 kHz in May 2007 and in February 2009. Overall ex situ TS–TL relationships were ... TL(cm) –73.74; (N = 16). Nine in situ acoustic trawl experiments targeted at juveniles and post ... -larvae of P. antarcticum with a total length from 13 to 70 mm, were conducted in the southeast of the ... , were conducted in the southeast of the continental slope and shelf of the Ross Sea at depths from 30 ... juvenile stages (size: 45–48 mm; age: second year), coinciding with an increase in lipid content in the ... specific ventral sacs (from 12–15% of first year to 20–32% dry weight (DW) of second year; DeVries and ... measured as an average value. It was assumed that a variation of around 20% or less in mean TS arising ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 75–104 : Auteur(s): Azzali, M., I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi
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Surface water circulation in krill fishing areas near the South Shetland Islands
Paper Title: Surface water circulation in krill fishing areas near the South Shetland Islands ... deployed in shelf and oceanic waters to the north of the South Shetland Islands. Each buoy was deployed ... with a drogue attached at a depth of 30 m to assess flow patterns at the depth range where krill tended ... sluggish southwest current with a series of small-scale circular and semi-circular flows in the shelf ... ; cylindrical type - length 8.6 m, diameter 0.94 m in 1994/95) at a depth of 30 m to assess flow pattern at ... Orkneys for 20 days before drifting to South Georgia. Buoy 4, deployed in the shelf region, moved east ... in the Atlantic sector of the Southern Ocean. Berichte zue Polarforschung, Sonderh., 4: 30-46 ... trawling positions of Japanese fishing vessels in the past 13 years, and also from krill abundance in ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 125–136 : Auteur(s): Ichii, T. and M. Naganobu
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Exploratory fishing for Dissostichus spp. in the Antarctic region (Subareas 48.1, 48.2 and 88.3)
Paper Title: Exploratory fishing for Dissostichus spp. in the Antarctic region (Subareas 48.1 ... establish the presence of Dissostichus spp. in Subareas 48.1, 48.2 and 88.3. Industrial longlines (Spanish ... °14'S), while Patagonian toothfish (Dissostichus eleginoides) were caught in waters from King ... George Island in the South Pacific Ocean (61°24'S) to the Scotia Sea in the South Atlantic (58°03 ... near Adelaide Island, where longlines were set between 290 and 350 m (station no. 20), and in ... happens each year between June and September (Duhamel, 1987, 1991; Konforkin and Kozlov, 1992). In the ... results obtained from five longline sets in the Antarctic region (60°53'-61'58's and 54'47'-60°20'W) at ... . Male 1 60 17 Female W 50 m - E 40 2 30 20 10 0 0 1 2 3 4 Repletion index Figure 6 ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 1–17 : Auteur(s): Arana, P.M. and R. Vega
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A proposed management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
) resource in the Prince Edward Islands vicinity Abstract / Description: The status of the toothfish ... resource in the Prince Edward Islands region is unclear because CPUE data suggest considerable depletion ... future TACs in the face of this appreciable uncertainty. Four Operating Models (OMs) reflecting ... resource. The MP uses two data sources: the recent trend in longline CPUE and the mean length of the ... future projections over a 20-year period, and in particular the following four statistics which were ... to the catches each year and the 43 length classes included in the likelihood, and thus roughly ... following proce- dure: 1. Numbers-at-age ( ',y aN ) for the start of the year in which projections ... for the current year (TACy’) as described in the next section which specifies the MP. 4. The ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 33–69 : Auteur(s): Brandão, A. and D.S. Butterworth
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Otolith microstructure of juvenile mackerel icefish (Champsocephalus gunnari) (Channichthyidae) in the South Georgia area
comprised two year classes arising from spawning in the 1999/2000 and 2000/01 split-years. The mean width of ... increments. TL varied from 5.5 to 10.4 cm for fish in their first year (120–250 days) to 12.5–13.3 cm in 1 ... ) (Channichthyidae) in the South Georgia area Abstract / Description: The otolith microstructure of juvenile ... mackerel icefish (Champsocephalus gunnari) (5.5–13.3 cm in length) was analysed using samples taken during ... the 1999/2000 (5 speci- mens) and 2000/01 (20 specimens) split-years. The 1999/2000 year class ... survey of juveniles in February–March 2002 on the South Georgia shelf. Juvenile fi sh comprised two year ... varied from 5.5 to 10.4 cm for fi sh in their fi rst year (120–250 days) to 12.5–13.3 cm in 1-year-old ... shown in Figures 1, 2 and 3. For age-reading purposes, the Antarctic split- year system was used, in ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 173–181 : Auteur(s): Shcherbich, L.V