Search results
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DEVELOPMENT OF RECOVERY PLANS FOR DEPLETED TOOTHFISH STOCKS IN THE INDIAN OCEAN SECTOR OF THE SOUTHERN OCEAN
is occurring. We propose surveys to be undertaken after 5 years and then two years later. The surveys should ... is occurring. We propose surveys to be undertaken after 5 years and then two years later. The surveys should ... that it will be at least 5 years before it is sufficiently low risk to survey this stock to determine if recovery ... that it will be at least 5 years before it is sufficiently low risk to survey this stock to determine if recovery ...
Meeting Document : WG-FSA-09/44 : Author(s): D.C. Welsford, A.J. Constable and J.P. McKinlay (Australia)
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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 ... of relative abundance of this species and of G. gibberifrons are well below those found in the early 1980s ... . At Harmony Cove, the relative abundance of N. rossii showed an increase in years 2002-2003, whereas ... in the catches of N. rossii in some years since 1997 might be indicative of events of higher recruitment, not yet ...
Meeting Document : WG-FSA-03/89 : Author(s): E. Barrera-Oro, E. Marschoff, R. Casaux and B. Gonzalez (Argentina)
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Mincing, mealing and batching: waste management strategies aimed at reducing seabird interactions with trawl vessels
was on a mid-water trawler targeting hoki (Macruronus novaezelandiae), and the experiment on this trip compared ... -water trawler targeting hoki (Macruronus novaezelandiae), and the experiment on this trip compared three ...
Meeting Document : WG-FSA-07/42 : Author(s): E. Abraham and J. Pierre (New Zealand)
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Environmental variability and the behavioural dynamics of Antarctic fur seals in the South Atlantic
gazella) over 15 years at the island of South Georgia in relation to major indices of southern hemisphere ... climate variation. Fur seal foraging trip duration was transformed into a normally distributed index ... had strong effects when lagged by one year. This was supported by bivariate correlation between ... in the foraging behavior of lactating Antarctic fur seals (Arctocephalus gazella) over 15 years at the island ...
Meeting Document : WS-AREA 48-98/16 : Author(s): I.L. Boyd (UK)
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TARGET STRENGTH STUDIES ON ANTARCTIC SILVERFISH (PLEURAGRAMMA ANTARCTICUM) IN THE ROSS SEA
a necessary support to in situ and ex situ results. Antarctic Silverfish is an important component of Middle ... to in situ and ex situ results. Antarctic Silverfish is an important component of Middle Trophic Level ...
Meeting Document : SG-ASAM-09/10 : Author(s): M. Azzali, I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi (Italy)
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Variation in reproductive performance of seabirds and seals at South Georgia, 1976–1986 and its implications for southern ocean monitoring studies
success, foraging trip duration and offspring growth rate. 1977-78 and 1983-84 were summers ... between normal and abnormal years are made of a range of parameters of albatross, penguin and fur seal ... success, foraging trip duration and offspring growth rate. 1977-78 and 1983-84 were summers ... between normal and abnormal years are made of a range of parameters of albatross, penguin and fur seal ...
Meeting Document : SC-CAMLR-VI/BG/15 : Author(s): J.P. Croxall, T.S. McCann, P.A. Prince and P. Rothery (United Kingdom)
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Variation or reproductive performance of seabirds and seals at South Georgia, 1976–1986 and its implication for Southern Ocean monitoring studies
success, foraging trip duration and offspring growth rate. 1977-78 and 1983-84 were summers ... between normal and abnormal years are made 'of a range of parameters of albatross, penguin and fur ... success, foraging trip duration and offspring growth rate. 1977-78 and 1983-84 were summers ... between normal and abnormal years are made 'of a range of parameters of albatross, penguin and fur seal ...
Meeting Document : WG-CEMP-87/13 : Author(s): J.P. Croxall, T.S. McCann, P.A. Prince and P. Rothery (United Kingdom)
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Breeding numbers and success of Eudyptes penguins at Marion Island, and the influence of arrival of adults
at study colonies for both Macaroni Eudyptes chrysolophus and Eastern Rockhopper E. chrysocome filholi ... Penguins, over 26 and 22 years respectively, suggesting over-wintering conditions may influence ... colonies for both Macaroni Eudyptes chrysolophus and Eastern Rockhopper E. chrysocome filholi Penguins ... , over 26 and 22 years respectively, suggesting over-wintering conditions may influence the proportions ...
Meeting Document : WG-EMM-05/38 : Author(s): R.J.M. Crawford, J. Cooper, B.M. Dyer and L.G. Underhill (South Africa)
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Krill length and age at maturity
later at a length between L50 = 43.33 and 43.79 mm. Length at maturity, and length at first spawning ... are identical for krill. Comparisons with length at age data show that females mature in the third year ... of the life cycle (age class 2 +), while males reach maturity in the fourth year as age class 3 +. Both sexes ... for female krill are the best estimates for the high spawning season. Males attain sexual maturity later ...
Meeting Document : WG-KRILL-93/40 : Author(s): V. Siegel (Germany) and V. Loeb (USA)
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Preliminary results from a study examining spatial structure and connectivity in Patagonian toothfish (Dissostichus eleginoides) in the South Atlantic section of the Southern Ocean
signatures could discriminate between geographic locations along the Scotia Arc and along the eastern South ... of material in the otolith nuclei, formed during the early life history: similar nucleus signatures can ... caught further west, implying a stock boundary. Although fish caught off the eastern North Scotia Ridge ... could discriminate between geographic locations along the Scotia Arc and along the eastern South ...
Meeting Document : WG-FSA-03/86 Rev. 1 : Author(s): J.R. Ashford (USA), A. Arkhipkin (United Kingdom) and C.M. Jones (USA)