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Some thoughts on precautionary measures for the krill fishery
Paper Title: Some thoughts on precautionary measures for the krill fishery Abstract / Description ... : The concept of precautionary measures for krill is discussed. A precautionary catch limit, based on ... the potential yield model developed by the CCAMLR Scientific Committee's Working Group on Krill ... precautionary catch limit in large areas, such as Statistical Area 48, but the approach requires considerable ... from a key foraging site or else during the most sensitive period of the year. This criticism could ... precautionary catch limit, i t would require monitoring of the fishing fleet to ensure that there is no ... size is derived from field counts which, since the locations of these sites are known, can be ... some sites, such as South Georgia; and (iv) fine-scale catch and effort data from the krill fishery ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 1–11 : Auteur(s): Everson, I. and W.K. de la Mare
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An overview of Southern Ocean zooplankton data: abundance, biomass, feeding and functional relationships (submitted to the 2008 Joint CCAMLR-IWC Workshop)
the north and south. Those compiling data on numerical density (no. m –2 or no. m –3) need to allow ... functional relationships (submitted to the 2008 Joint CCAMLR-IWC Workshop) Abstract / Description: There is ... overview is provided of the diversity and basic biology of SO zooplankton, with an emphasis on abundance ... , distribution and feeding. Second, advice is provided on the uses, strengths and limitations of zooplankton data ... mesozooplankton abundance at a coastal site in the Ross Sea (Foster, 1989; Knox et al., 1996). Macro ... the most commonly used zoo- plankton sampler, but no single net type or mesh size is suitable to ... zooplank- ton in the literature or in databases might include numerical densities (no. ind. m–2) but often ... Email – aat@pml.ac.uk *New address: Plymouth Marine Laboratory Prospect Place, The Hoe Plymouth PL1 ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 171–218 : Auteur(s): A. Atkinson, P. Ward, B.P.V. Hunt, E.A. Pakhomov and G.W. Hosie
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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
Paper Title: Analysis of the diet of Champsocephalus gunnari at South Georgia in late summer from ... 1994 to 1997, Dr Eduardo L. Holmberg surveys Abstract / Description: The diet composition of the ... superba), followed by the amphipod hyperiid Themisto gaudichaudii, was the main food item around South ... Georgia and Shag Rocks in the period investigated, except in 1994, when the order of importance of these ... number of fish sampled and 79% of mature fish. In the same year, no significant association was found ... 10-55 In the 1994 survey, a set of sampling sites was selected along random tracks with the aim of ... - Table 2). In the subsequent surveys, this set of sampling sites was maintained and enlarged on the ... CCAMLR Science, Vol. 5 (1998): 103-123 ANALYSIS OF THE ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 103–123 : Auteur(s): Barrera-Oro, E., R. Casaux and E. Marschoff
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Observation of seabirds in the Southern Ocean in 1988/89
Paper Title: Observation of seabirds in the Southern Ocean in 1988/89 Abstract / Description ... : This paper examines the numerical and species distribution of birds in the sub-Antarctic area of the ... Southern Ocean to the south of 60°S. Thirty minute observations were made daily during daylight hours at 8 ... ports of call. Maps summarize the distribution of 14 bird species as well as of the individual species ... than a handful. As a rule, snow, Antarctic and giant petrels were observed at the same time. No birds ... (Prydz Bay) and the Davis Sea on the way to Mirny Station. It is possible that these birds were sighted ... cases more than 200 specimens were observed (in the western part of Prydz Bay). Such a large ... (Figure 9). The greatest number of birds (over 3000) was recorded on 14 January 1989 in Prydz Bay at 67 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 521–542 : Auteur(s): Vagin, A.V. and V.V. Popov
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Krill biomass assessment in Statistical Area 48 from the RV AtlantNIRO data - Autumn 1989/90
speed was 3.2 to 3.6 knots. The total krill stock on the poorly studied site off the South Sandwich ... Sea. In contrast to this site, the one off the South Orkney Islands is well-established in terms of ... Paper Title: Krill biomass assessment in Statistical Area 48 from the RV AtlantNIRO data- Autumn ... in the South Sandwich and South Orkney Islands areas during a cruise by RV AtlantNIRO in March/April ... stock on the poorly studied site off the South Sandwich Islands was assessed at 3.8 million tonnes ... , most of which was concentrated in the waters of the Weddell Sea. In contrast to this site, the one ... to be more accurate in estimating krill biomass in the South Sandwich Islands area since no similar ... AREA 48 FROM THE RV ATLANTNIRO DATA - AUTUMN 1989/90 A.C. Fedotov* * Abstract A krill biomass ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 115–121 : Auteur(s): Fedotov, A.C.
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The utilization of seabird censuses for krill monitoring
Paper Title: The utilization of seabird censuses for krill monitoring Abstract / Description ... : The possibility of using bird observations made at sea as a means of monitoring krill in the Antarctic ... Ocean is explored. No variation source directly linked with krill was identified by means of ... krill abundance. A vector close to multi-normality was obtained, thus suggesting that refinements of the ... of analysis I. From the correspondence analysis of the whole set of data, no major axis can be ... the same methods with the following summary of results No krill regression on species is worth ... regression curves. No such method is attempted here, because of the fact that directions to be tested are ... - 393 - THE UTILIZATION OF SEABIRD CENSUSES FOR KRILL ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 393-425 : Auteur(s): Marschoff, E.R., J.G. Visbeek and L.R. Fontana
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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 ... -larvae of P. antarcticum with a total length from 13 to 70 mm, were conducted in the southeast of the ... continental slope and shelf of the Ross Sea at depths from 30 to 120 m, during the Italian expeditions of 1997 ... de las de los peces postlarvales y juveniles. No obstante, el TS experimental ex situ como in situ ... knowledge on the acoustic properties of P. antarcticum and thus there is no acoustic estimation of their ... Ancona Bay, Italy (43°37'N 13°28'E), near the RV Dallaporta, on which an acoustic laboratory was ... (which ranged from –0.5 to –1°C). There is cur- rently no information regarding the dependence of fish ...
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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Natural mortality rate in the mackerel icefish (Champsocephalus gunnari) around South Georgia
Paper Title: Natural mortality rate in the mackerel icefish (Champsocephalus gunnari) around ... South Georgia Abstract / Description: Information on natural mortality rates of the mackerel icefish ... (Champsocephalus gunnari) from the period prior to known large-scale commercial harvesting is discussed. After ... careful consideration of the data and available methods, several errors are noted in earlier estimates ... information on the analyses undertaken. Although mentioned in the WG-FSA report, no discussion is reported ... (1990). Apparently, no analyses using M = 0.35 were undertaken at that time. The recent study by ... the matrix. No information is given in Frolkina and Dorovskikh (1990,1991) about sampling gear ... fish in all fully recruited age classes, and no is the number sampled from the first fully recruited ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 245–257 : Auteur(s): Everson, I
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Commercial krill fisheries in the Antarctic, 1973 to 1988
Paper Title: Commercial krill fisheries in the Antarctic, 1973 to 1988 Abstract / Description ... : STATLANT data reported to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR ... ) are used to discern observable trends in catch and effort for the Antarctic krill (Euphausia superba ... ) fishery between 1972/73 and 1987/88. The annual krill catch rose gradually to a peak of some 500 000 ... -139. 240 MILLER, D.G.M. 1987. The South African SIBEX 11 Cruise to the Prydz Bay region, 1985 ... . Sci. Fish. No. 11. (In Japanese). STASENKO, V.D. 1967. Determining the rational krill fishing ... SC-CAMLR-VII1I8G/11 COMMERCIAL KRILL FISHERIES IN THE ... ANTARCTIC, 1973 TO 1988 D.G.M. Miller Abstract ST ATLANT data reported to the Commission for the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 229–281 : Auteur(s): Miller, D.G.M.
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Biological characteristics of Antarctic fish stocks in the southern Scotia Arc region
Islands. Length compositions and the proportion of large (= old) specimens in the populations provided no ... Paper Title: Biological characteristics of Antarctic fish stocks in the southern Scotia Arc ... region Abstract / Description: Commercial exploitation of finfish in the southern Scotia Arc took place ... from 1977/78 to 1989/90, and was in its heyday from 1977/78 to 1981/82. Except for Elephant Island, the ... the populations provided no evidence of illegal fishing since the closure of the region some 10 years ... measurements and cluster linkage methods revealed no significant differences from the results of the methods ... (= old) specimens in the catches suggested that no substantial illegal fishing had taken place since ... maturity stage 5/2 or specimens in stage 3, but no specimens in actual spawning condition (stage 4). The ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 1–41 : Auteur(s): Kock, K.-H., C.D. Jones and S. Wilhelms