Résultats de la recherche

1. The use of patent databases to predict trends in the krill fishery

   / Description:  The fishery for Antarctic krill (Euphausia superba) caught 210 000 tonnes in 2009/10 with ... country, with Japanese compa- nies lodging 49% of the total patents, and compa- nies from the USA lodging ... (Nicol et al., 2011). CCAMLR aims to manage the krill fishery in line with its precaution- ary and ... Antarctic krill (Euphausia superba) caught 210 000 tonnes in 2009/10 with vessels from six of CCAMLR’s 25 ... order to ensure the orderly develop- ment of the fishery and to meet CCAMLR’s man- agement objectives ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 135–144 : Auteur(s): Foster, J., S. Nicol and S. Kawaguchi

2. A study of Patagonian toothfish (Dissostichus eleginoides) post-tagging survivorship in Subarea 48.3

   . Toothfish were kept in tanks with seawater replacement for at least 12 hours after tagging. On one vessel ... , fish with a variety of injuries were selected to see if this affected recovery. In the final analysis ... , 396 animals were included, with an overall survivorship of 90%. Smaller animals and animals in better ... several years, with some fish surviving several cycles of capture and recapture suggesting high ability ... carried out on eight different vessels fishing in Subarea 48.3. Toothfish were kept in tanks with ... seawater replacement for at least 12 hours after tagging. On one vessel, fish with a variety of injuries ... were selected to see if this affected recovery. In the final analysis, 396 animals were included, with ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 279–289 : Auteur(s): Agnew, D.J., J. Moir Clark, P.A. McCarthy, M. Unwin, M. Ward, L. Jones, G. Breedt, S. Du Plessis, J. Van Heerdon and G. Moreno

3. Abundance, size and maturity of krill (Euphausia superba) in the krill fishing ground of Subarea 48.1 during the 1990/91 austral summer

   been lower than expected until early February 1991. As for maturity stages of krill, spawning krill ... with a low 3.7 g/m 2 (163000 tonnes) in the oceanic zone. Gravid females were nearly absent in the ... from 18 January to 3 February 1991. Distinct offshore-inshore heterogeneities in abundance and maturity ... the upwelling deep water may assist upward movement of early larval stage kriU (Marr, 1962) and that ... 1988). Later in this season (late February to early March) krill biomass in the Elephant Island region ... until early February 1991. As for maturity stages of kriU, spawning krill (modal body length 49 mm ... frontal zone, having a mean density of 23.9 g/m2 (411 000 tonnes), as contrasted with a low 3.7 g/m2 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 183–199 : Auteur(s): Ichii, T., H. Ishii and M. Naganobu

4. By-catch, growth and feeding of Antarctic juvenile fish taken in krill (Euphausia superba Dana) fisheries in the South Georgia area, in 1992

   . Vertical and temporal distribution and early life history relevant to monitoring year-class strength and ... 1) using a modified version of the commercial midwater trawl 74/600 with a mouth area =400 rn2 and ... ). Juveniles were then analysed for taxonomic identification, stomach content, standard length (with an ... accuracy of =l mm) and weight (with an accuracy of ~0.01 g). The main components found in the fish ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 129–142 : Auteur(s): Pakhomov, E.A. and S.A. Pankratov

5. An assessment of toothfish in Subarea 48.3 using CASAL

   effective sample sizes that occurred in 1997. This year coincides with the rapid transition to full ... of fish tagged in month/ year y of age a with z tags, (1–p) is the proportion surviving the initial ... pattern, with no strong or weak cohorts moving through the data – espe- cially not in the later years ... measurements of the catch weighted by catch size. In the early years (1985–1995) only fleet-based ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 65–95 : Auteur(s): Hillary, R.M., G.P. Kirkwood and D.J. Agnew

6. Composition and characteristics of ichthyofauna in pelagic waters of South Georgia (Subarea 48.3)

   : horizontal, vertical and temporal distribution and early life history relevant to monitoring year-class ... and Shag Rocks over several years. This paper, together with summaries of results of bottom ... in the years of strong year classes and fishing mortality represents only a minuscule fraction of ... . Vessel Cruise number Year Date Number of hauls: South Georgia Shag Rocks MATERIAL AND METHODS ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 125–164 : Auteur(s): Frolkina, G.A., M.P. Konstantinova and I.A Trunov

7. Consideration of major issues in ecosystem monitoring and management

   specific survival 1 year 100s A5 Foraging trip duration 2 months 1–2 days 25–50 A6 Breeding success 2–3 ... certainly differ over the year. Thus, in terms of small-scale interactions, such as those associated with ... recruiting year class. Everson 222 exponential decline in numbers with age due to mortality, we can ... Fur seal C1 Foraging trip duration 2–3 months Several days 20–100 C2 Pup growth 2–3 months 2–3 months ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 213–232 : Auteur(s): Everson, I

8. Foraging behaviour and reproductive success in chinstrap penguins: the effects of transmitter attachment

   method with which to monitor foraging trip duration in penguins by the CCAMLR (Commission for the ... on: (i) the effects of radio transmitter attachment on nest attendance, foraging trip duration, nest ... 10 nests were equipped with a radio transmitter, 120 nests were used as a control group. The results ... may be no difference between trip durations obtained by applying the transmitters to one or both ... accepted as a standard method with which to monitor foraging trip duration in penguins by the CCAMLR ... radio transmitters has been accepted as a standard method with which to monitor foraging trip duration ... Transmitters Early Brooding: Trip 13.4 14.7 14.6 17.1 (6.0, 99) (4.7, 16) (6.0, 16) (9.6, 15) Visit ... dislike least? Wildl. Manage. 54(3): 447-451. 298 Table 1: Mean foraging trip and visit durations ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 291–303 : Auteur(s): Croll, D.A., J.L. Bengtson, P.L. Boveng, M.E. Goebel and J.K. Jansen

9. Age–length composition of mackerel icefish (Champsocephalus gunnari, Perciformes, Notothenioidei, Channichthyidae) from different parts of the South Georgia shelf

   the eastern, northern, western and southern parts of the shelf, and near Shag Rocks, revealed a ... Rocks. Differences were observed between those those two groups and the eastern group. The larger number ... of mature fish in the west is related to the migration of maturing individuals from the eastern and ... the age of 2-3 years. It has been found that, by number, recruits represent the largest part of the ... up to 7 years old (Figures 3 and 4). As a rule, 3-year-old, and sometimes 4-year-old fish dominated ... be attributed to a strong year class which remained abundant over the years (Frolkina, 1993). At ... in the commercial fishery off South Georgia were between 1 and 7 years old, with occa- sional ... individuals up to 11 years. At Shag Rocks fish were aged up to 5-6 years, with small numbers of individuals ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 133–146 : Auteur(s): Frolkina, G.A

10. Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia

    . Since 2003, cetaceans have been observed on 22% of 14 300 observed lines, with killer whales present on ... whales occur during May at the start of the season with the sightings becoming fewer towards the end of ... the season in August. Killer whale interactions appear to be more consistent with no obvious pattern ... related to the pattern of fishing effort. By comparing catch rates with and without the presence of ... sperm whales. A GAM, constructed with year, vessel nation- ality, depth, month, area and number of ... °S 36.5°W); (b) the five fine-scale rectangles with the highest CPUE in any one year. The results ... year-round with no detectable seasonal variation, the whales have been identified tentatively as Type ... some years, which combined with the high levels of encounter in these years significantly increased ...

    Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 163–178 : Auteur(s): Moir Clark, J. and D.J. Agnew

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