Search results
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Joinville–D’Urville Islands (Subarea 48.1) – a former fishing ground for the spiny icefish (Chaenodraco wilsoni), at the tip of the Antarctic Peninsula – revisited
Expedition ANT XIX/3 by RV Polarstern in February 2002. Five hauls were conducted north of the two islands ... restricted to the two seasons (1978/79 and 1979/80) when Polish and GDR vessels fished in the area. Length ... of the Antarctic Expedition ANT XIX/3 by RV Polarstern in February 2002. Five hauls were conducted north of the two ... was, however, sparse, being restricted to the two seasons (1978/79 and 1979/80) when Polish and GDR vessels ... vessel Parallaks found two concentrations of C. wilsoni at 62°20’–62°30’S 55°30’–56°00 ... et al. 10 After hatching, larvae, postlarvae and juveniles of C. wilsoni spent one or two years ... , pers. comm., 1980). Exploratory fi shing by a GDR trawler was also conducted on one or two days ... in midwater and subsurface waters and moved with the coastal current to the west. Two- to four-year-old fi ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 1–20 : Author(s): Kock, K.-H., L. Pshenichnov, C.D. Jones, K. Shust, K.E. Skora and Zh.A. Frolkina
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Discrimination of Macrourus whitsoni and M. caml (Gadiformes, Macrouridae) using otolith morphometrics
fishery in the Ross Sea region is comprised of two species, rather than being solely Macrourus whitsoni ... importance of grenadiers as prey to toothfish, a method of distinguishing between otoliths of the two species ... the two species (92% success). A method was also developed to discriminate between otoliths of M. whitsoni ... of the two species of grenadier. Models to estimate fish length, weight and age from otolith parameters ... 80 60 40 20 0 10 20 30 40 50 60 70 Age (years ... = Macrourus whitsoni. WG2 = M. caml. One specimen of M. caml could not be sexed. A two-sided t-test ... years, M. caml takes more than 30 years Table 4: Discriminant analysis results using otolith ... shown on x-axis). 60 50 40 30 20 10 0 N um be r o f fi sh 37 42 47 ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 15–28 : Author(s): Pinkerton, M.H., C. Ó Maolagáin, J. Forman and P. Marriott
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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 Shag Rocks in the period investigated, except in 1994, when the order of importance of these two ... and Thysanoessa sp., which are known to be important alternative food in years of krill scarcity, as well as fish ... , was only occasional or negligible and varied from year to year. The spatial distribution of the main prey ... 48.3, did not show a consistent pattern from year to year. Likewise, in the four surveys by the Dr ... , 1995). In 1996 and 1997 fish between 16 and 20 cm predominated; in 1997 a peak between 25 and 30 cm ... to calculate length distributions. These two association coefficients were not significant in both years ... (ranges 12-20 cm/l-2 years) was found in the catches during the RV Dr Eduardo L. Holmberg surveys over ... of C. gt~nnari was the lowest registered for cruises carried out over the last 30 years, even lower than ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 103–123 : Author(s): Barrera-Oro, E., R. Casaux and E. Marschoff
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Report on the status of wandering, black-browed and grey-headed albatrosses at South Georgia
conducted in the mid 1980s, numbers of these two species appear to have decreased by 26% and 14 ... trends at South Georgia. The decline in wandering albatrosses is even more pronounced: 30% (1.8% p.a ... year. Unless these long-term declines can be halted or reversed, there must be some doubt over the long ... in the mid 1980s, numbers of these two species appear to have decreased by 26% and 14%, respectively. However ...
Meeting Document : WG-FSA-04/71 : Author(s): S. Poncet (United Kingdom),G. Robertson (Australia), R. Phillips (United Kingdom), K. Lawton (Australia), B. Phalan, J. Croxall and P. Trathan (United Kingdom)
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Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longline
Islands EEZ (southern Indian Ocean). As the two species remove the entire fish from the hooks whether ... they depredate longline hooks separately or simultaneously, this study aimed at providing two indirect methods ... of assessment of depredated biomass over a 11-year period (from 2003 to 2013), both accounting for spatial ... t of Patagonian toothfish were respectively depredated by killer whales and sperm whales when the two species ...
Meeting Document : WG-FSA-14/10 : Author(s): N. Gasco, P. Tixier, G. Duhamel and C. Guinet (France)
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Monitoring of relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at Potter Cove, South Shetland Islands, in years 2000 to 2003
has continued in Potter Cove from 2000 to 2003, covering a continuous sampling period of twenty years ... . At Harmony Cove, the relative abundance of N. rossii showed an increase in years 2002-2003, whereas ... G. gibberifrons was absent in the catches. No recovery of the stocks of these two fish species was still observed ... , more than two decades after the end of the commercial fishery. However, the increase observed ...
Meeting Document : WG-FSA-03/89 : Author(s): E. Barrera-Oro, E. Marschoff, R. Casaux and B. Gonzalez (Argentina)
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Density estimation of Antarctic krill (Euphausia superba) around South Shetland Island and Elephant Island (Subarea 48.1) using two frequencies with 38 and 120 kHz
an acoustics survey. Acoustic data were collected using two frequencies with 38 and 120 kHz from March 8 to 15 ... and Elephant Island (Subarea 48.1) using two frequencies with 38 and 120 kHz Microsoft Word File: asam-2019 ... survey. Acoustic data were collected using two frequencies with 38 and 120 kHz from March 8 to 15 in 2019 ... Island (Subarea 48.1) using two frequencies with 38 and 120 kHz ...
Meeting Document : SG-ASAM-2019/03 Rev. 1 : Author(s): S. Choi, S. Chung, I. Han, W. Oh, D. An and K. Lee
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Krill Fishery Report 2016
seasons; no less than 75% of vessels during the 2018/19 and 2019/20 fishing seasons; and 100% coverage ... biomass dropping below 20% of its median pre-exploitation level over a 20-year harvesting period is 10 ... %. 2. Choose a yield, γ2, so that the median escapement at the end of a 20-year period is 75% of the median ... of the krill fishery has a catch as high as 620 000 tonnes been taken in one year). The trigger level has been ...
Document : Site Section: Publications
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On necessity of longline fishery and research of Antarctic toothfish in all SSRUs of Subareas and Divisions 88.1, 88.2, 58.4.1, 58.4.2
of toothfish migrations by tagging results. The mentioned system shortcomings require its revision ... of toothfish migrations by tagging results. The mentioned system shortcomings require its revision ...
Meeting Document : WG-FSA-10/36 : Author(s): K.V. Shust, A.F. Petrov, V.A. Tatarnikov and I.G. Istomin (Russia)
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Proposed amendments to Article IV, Para land Article XXI: Preservation of Coastal State Jurisdiction
~nish PROPOSAL SUBMITTED BY THE ARGENTINE DELEGATION ARTICLE IV, PARA. 1 SECOND LINE; A ...
Document : Site Section: The Organisation