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1. Line weights of constant mass (and sink rates) for Spanish system Patagonian toothfish longline vessels

   no maintenance. An experiment was conducted on a Spanish-system longline vessel to determine the ... with seabirds. The weights typically used are collections of rocks enclosed in netting bags. During ... fishing operations the netting bags abrade on the seabed causing rocks to be lost and the weights to ... relationship between the sink rates of longlines equipped with bags of rocks (4, 6 and 8 kg) and those with ... the Tierra del Fuego). Because there is no horizontal link between adjacent branch/connecting lines ... There are a number of advantages associated with the use of steel weights. Once acquired, no labour is ... required to build the steel weights and they require virtually no maintenance at sea. They are also more ... smaller, smooth sided and contain no netting bags, features that may reduce the fre- quency of fowling on ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 93–106 : Autor(es): Robertson, G., C.A. Moreno, E. Gutiérrez, S.G. Candy, E.F. Melvin and J.P. Seco Pon

2. Statistical power to detect changes in growth rates of Antarctic fur seal pups

   Abstract / Description:  Numerical simulations were used to investigate the power of methods for detecting ... changes (between years) in pup growth rates, the loss of power associated with obtaining weight samples on ... only three dates in a season, and potential means of increasing the power of the CCAMLR Ecosystem ... (60°59.5'S, 55°24.5'W), the simulations suggest that following the protocol of the Standard ... 28-day) intervals would conclude on the 114th day after mean pupping. Thus, it seems that no more ... and duration of the weighing period are nearly identical to those in the standard method, there is no ... Numerical simulations were used to investigate the power of methods for detecting changes (between years ... ) in pup growth rates, the loss of power associated with obtaining weight samples on only three dates ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 399–409 : Autor(es): Boveng, P., J.L. Bengtson and M.E. Goebel

3. Estimates of fish stock biomass around South Georgia in January/February 1985

   estimate stock sizes of the commercially exploited Notothenia rossii, N. guntheri, N. gibberifrons ... around South Georgia. Due to the small data base and the scarcity of comparative information the state of ... N. guntheri and D. eleginoides stocks is difficult to assess. The by-catch species N. gibberifrons ... , Ch. aceratus and Ps. georgianus have been considerably affected by the fishery. Stock sizes of N ... selection should have been negligible due to the use of a small meshed liner of 20 mm. No data are ... larger concentrations in Royal Bay and the station on the eastern shelf where C. gunnari was abundant ... over the shelf forming no concentrations (fig. 11). Sampling covered mostly older juveniles (30-40 ... sizes of the commercially exploited Notothenia rossii, N. guntheri, N. gibberifrons, Dissostichus ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 1-32 : Autor(es): Kock, K.-H.

4. Archival and satellite-linked data recorders

   behaviour. The records can be recovered in one of two ways: the data recorder must either be recovered ... intact, or the data recorder must be capable of disseminating its data via a radio link, such as the ... . Raw-data recorders keep a complete record of the diving parameters of interest and thus produce ... . Due to the limited data-handling capacity of the ARGOS satellite system, most satellite-linked ... investigated 24 hours a day for periods of days to months with little or no intervention on the part of the ... source to track across the width of the film while an electric motor advances the film at a steady rate ... . ·.,The film must sUbsequently be developed and the dive profiles digitized before any analysis can be ... bead is made to move over a piece of photographic film as a result of the depth or speed stimulus ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 475-493 : Autor(es): Hill, R.D.

5. CPUE indices used in Soviet krill fishery statistics from 1977 to 1992 and their possible utility for evaluation of relative changes in krill biomass

   -unit-effort (CPUE) indices used in Soviet krill fishery statistics, as well as the main sources of data ... and primary data for their calculations, were examined. The main CPUE indices were catch per vessel ... observed. However, the correlation between daily mean values was quite low as a result of significant ... fluctuations in haul duration due to the different fishing strategies used when targeting krill intended for ... well as the main sources of data and primary data for their calculations, were examined. The main ... CVDF and CEVDF, and CVDF and CHT was observed. However, the correlation between daily mean values was ... quite low as a result of signifi cant fl uctuations in haul duration due to the different fi shing ... correlated. Depending on the fi shing strategy used, the number of hauls per day ranged from 1 to 15. The ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 165–177 : Autor(es): Litvinov, F.F., A.Z. Sundakov and V.I. Arkhipov

6. Seabird interactions with trawl and longline fisheries for Dissostichus eleginoides and Champsocephalus gunnari

   , probably because the birds at the former site are distracted from the longlines by the discharge of offal ... and Champsocephalus gunnari Abstract / Description:  The behaviour of seabirds and the rate of ... (Dissostichus eleginoides) in the 1994/95 season near Macquarie Island and Kerguelen Island. Longlining for D ... seabirds were constantly observed near the vessels, especially giant petrels (Macronectes halli and M ... track. The vessel did not use a netsonde cable. No mortality or injury to seabirds was observed on ... during hauling. No bird was seen to collide with any of the trawl gear or the ship itself. Observations ... . eleginoides and white-chinned petrels are uncommon, there was no mortality. Most of the activity around the ... by the cable (Table 3). Trawling in the C. gunnari fishery, provided no netsonde cable is used ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 93–99 : Autor(es): Williams, R. and D. Capdeville

7. Supplementary data on exploited stocks in Division 58.5.1 (Kerguelen)

   / Description:  The results of fishing cruises carried out from 1986/87 to 1988/89 in Division 58.5.1 (Kerguelen ... Island) have made possible a review of the status of the various harvested fish stocks. Since 1984, an ... average annual growth of 36% has been noted in the abundance of the juvenile section of the stock of ... Notothenia rossii, a species which is at present only fishable as a by-catch. The total biomass of the stock ... sampling period. No other abundant cohort has been able to be detected since the southern winter of 1987 ... continues throughout the summer (Figure 4). There were no differences between sampling carried out on ... DIVISION 58.5.1 (KERGUELEN) G. Duhamel Abstract The results of fishing cruises carried out from 1986 ... /87 to 1988/89 in Division 58.5.1 (Kerguelen Island) have made possible a review of the status of ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 147–161 : Autor(es): Duhamel, G.

8. Results of fish larvae sampling by means of fine-meshed samplers attached to a bottom trawl

   bottom trawl Abstract / Description:  Fine-meshed samplers were attached to the top of a bottom trawl in ... order to provide information on the composition, distribution and abundance of Antarctic fish larvae in ... the near-bottom zone, which is usually not sampled using plankton nets. The efficiency of various ... sized meshes for sampling larvae in the bottom zone and the resistance of the samplers to damage during ... western and southwestern part of the island shelf. There were no differences observed in results of day ... the Cumberland East Bay of South Georgia during 4-14 January 1987 suggested that most fish larvae in ... -meshed samplers were attached to the top of a bottom trawl in order to provide information on the ... composition, distribution and abundance of Antarctic fish larvae in the near-bottom zone, which is usually ...

   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

9. Additional data on anti-Brucella antibodies in Arctocephalus gazella from Cape Shirreff, Livingston Island, Antarctica

   Shirreff, Livingston Island, Antarctica Abstract / Description:  The first instance of anti-Brucella ... antibodies in the Southern Hemisphere was recorded in two pinniped species from Antarctica: Antarctic fur ... fluid) were tested using the Rose Bengal (RB) test, the Competitive Enzymoimmunoassay (c-ELISA) test and ... the Competitive Enzymoimmunoassay 'COMPELISAO®' test.  Antibodies against Brucella spp. were ... Fieldwork was carried out at the Site of Special Scientific Interest (SSSI) No. 32 and CCAMLR Ecosystem ... carried out by the Instituto Anthrtico Chileno (TNACH). SSSI No. 32 and CEMP Site No. 2 contain one of ... Antarctica since the bacteria have not yet been isolated and no studies on this subject have been conducted ... no positive results were obtained with the COMPELISAO test. DISCUSSION AND CONCLUSION In ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 147–154 : Autor(es): Blank, O., P. Retamal, P. Abalos and D. Torres

10. Marine debris and fishing gear associated with seabirds at sub-Antarctic Marion island, 1996/97 and 1997/98: in relation to longline fishing activity

    debris found in association with seabirds at sub-Antarctic Marion Island for the period May 1996 to April ... 1998 is reported. Standardised searches and incidental finds show a large increase between the 1996/97 ... and the 1997/98 field seasons. Fishing gear increased at a rate 10 times higher than 'other' ... found. Prior to this study only three hooks (all from the southern bluefin tuna longline industry) had ... and longline fishing industry. As we collected all debris (i.e. there was no bias in the type of ... association with seabirds at sub-Antarctic Marion Island for the period May 1996 to April 1998 is reported ... . Standardised searches and incidental finds show a large increase between the 1996/97 and the 1997/98 field ... from the southern bluefin tuna longline industry) had been found in association with seabird nests at ...

    Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 85–96 : Autor(es): Nel, D.C. and J.L. Nel

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