Résultats de la recherche

1. Otolith and body size relationships in bigeye grenadier (Macrourus holotrachys) in CCAMLR Subarea 48.3

   holotrachys) caught as by-catch in the Patagonian toothfi sh (Dissostichus eleginoides) fishery in Subarea ... 48.3 was measured and weighed, and the usefulness of otoliths as predictors of fish size was determined ... size models should be derived for each fish population under investigation. The length of fish chosen ... in such studies should be representative of the size range consumed by predators. File:  09morley ... 80 cm Lt. A paired t-test comparison of the dimensions of the left and right otoliths revealed no ... otoliths have, how- ever, found there to be no difference between the size of otoliths in males and ... . Ichthyological Monographs of the J.L.B. Smith Institute of Ichthyology, No. 1xiv: 253 pp. Trunov, I.A. and V.V ... otoliths from bigeye grenadier (Macrourus holotrachys) caught as by-catch in the Patagonian toothfi sh ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 133–143 : Auteur(s): Morley, S. and M. Belchier

2. Sea-surface temperature and krill catches around South Georgia in December–February 1989–1991 and 1999–2001

   further analysis of SST maps, provides continuous information on hydrological conditions in the area ... . Analyses of the data at the beginning of each summer season could enable us to evaluate the potential for ... conducting a krill fishery in the area during the entire year. The reliability of these forecasts could be ... with the early 1990s, the period from December to February in the late 1990s and early 2000s showed a ... of SST maps, provides continuous information on hydrological conditions in the area. Analyses of ... the data at the beginning of each summer season could enable us to evaluate the potential for ... conducting a krill fi shery in the area during the entire year. The reliability of these forecasts could be ... comparison with the early 1990s, the period from December to February in the late 1990s and early 2000s ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 165–174 : Auteur(s): Vanyushin, G.P

3. Spatial distribution of management measures, Antarctic krill catch and Southern Ocean bioregions: implications for conservation planning

   conservation planning for developing marine spatial protection includes analysis of the spatial distribution of ... fishing activities, existing management and ecological characteristics. This paper assesses the overlap ... between habitat (bioregion), existing spatial management and Antarctic krill catch in the Southern Ocean ... . The analysis required standardised information on the location and extent of spatial fisheries ... 2). To date there has been no central repository of standardised information on the spatial ... the site (pica) scale, whereas fisheries catch data may be reported or aggregated to a local (micro ... CCAMLR has endorsed the development of a representative system of marine protected areas (MPAs) in the ... measure (CM) agreed by the Commission in 2011 (CM 91-04) sets out a general framework for establishing ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 1–19 : Auteur(s): Grant, S.M., S.L. Hill and P.T. Fretwell

4. 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 : Auteur(s): Boveng, P., J.L. Bengtson and M.E. Goebel

5. 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 : Auteur(s): Kock, K.-H.

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 ... reported for the South Georgia area, probably because the birds at the former site are distracted from the ... 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 ...

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

7. 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 : Auteur(s): Litvinov, F.F., A.Z. Sundakov and V.I. Arkhipov

8. 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 : Auteur(s): Duhamel, G.

9. 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 : Auteur(s): Hill, R.D.

10. 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 : Auteur(s): Ślósarczyk, W. and I. Wójcik

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