Resultados de la búsqueda
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Comparisons in prey distribution between inshore and offshore foraging areas of chinstrap penguins and Antarctic fur seals at Seal Island
foraging trip such as Antarctic fur seals (Arctocephalus gazella) and overnight foraging chinstrap penguins ... the slope/offshore region was less abundant with krill and more remote from their breeding sites than ... slope/offshore region; (3) Myctophid fish occurred near surface at night in the slope/offshore region ...
Meeting Document : WG-EMM-96/49 : Autor(es): Ichii, T., Bengtson, J.L., Boveng, P., Cameron, M.F., Naganobu, M., Meyer, W.R., Hiruki, L.M., Takao, T., Jansen, J.K., Kawaguchi, S.
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Oceanic debris observations in the southern ocean whale sanctuary, from Antarctic Peninsula to the Ross Sea: December 1994 to March 1995
Abstract: Observations of natural and man-made floating megalitter, macrolitter and mesolitter in ... . Man-made megalitter was nowhere common, but was seen mostly near and to the west of the Antarctic ... styrofoam fragments. Fishing gear was not a major component of man-made debris. Macrolitter consisted mainly ... granules were concentrated near the Antarctic Convergence south of the Tasman Sea. Man-made mesolitter was ...
Meeting Document : SC-CAMLR-XVI/BG/29 : Autor(es): ASOC Observer
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Unusual breeding by seabirds at Marion Island during 1997/98
chicks of rockhopper penguins fledged with a slightly heavier mass than in other years. However, for both ... breeding season. Gentoo penguins initiated breeding later than usual and fledged few chicks. The number of ... species with an intermediate foraging range that eat mainly crustaceans, macaroni Eudyptes chrysolophus ... /99) breeding season. The unusual breeding by most of the seabirds coincided with the El Niño Southern ...
Meeting Document : WG-EMM-03/13 : Autor(es): R.J.M. Crawford, C.M. Duncombe Rae, D.C. Nel and J. Cooper (South Africa)
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The diet of black-browed albatrosses at the Diego Ramirez Islands, Chile
similar throughout the study, with diet being dominated by fish in all three years. Overall, the main ... , Chile, during the early chick-rearing period of 2000, 2001 and 2002. Diet composition was determined by ... fish hooks and fish bait species, indicates a strong association with fisheries in southern Chile ... sampling chick stomach contents during January and February of each year. Reconstituted meal mass was ...
Meeting Document : WG-FSA-03/9 : Autor(es): J. Arata (Chile) and J.C. Xavier (United Kingdom)
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Status and trends of Adelie penguin populations in the Ross Sea region
occupied during the early incubation period. From 1981 to 1987, all islands and sea coasts between 158°E ... Adé1ie rookeries are now known from the region, with a total of about 1,082,1300 breeding pairs – almost ... study the pattern of natural fluctuations in Adé1ie populations, and comparisons have been made with ... earlier counts. Populations at nearly all rookeries have increased in size over the last 10–20 years ...
Meeting Document : WG-CEMP-92/23 : Autor(es): R.H. Taylor, P.R. Wilson and B.W. Thomas (New Zealand)
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Management of C. gunnari in Subarea 48.3
likelihood of substantial periodic variation in natural mortality rates. These may be associated with ... increased consumption of icefish by Antarctic fur seals in years of poor krill availability. Thus natural ... mortality of icefish may, in some years, increase by a large factor (assumed here to be 4) declining to ... predictions of coming periods of krill scarcity as early warnings of increased natural mortality on icefish ...
Meeting Document : WG-FSA-97/38 : Autor(es): Kirkwood, G.P., Parkes, G.B., Everson, I., Agnew, D.J.
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The Ross Sea, Antarctica, where all ecosystem processes still remain for study
lost its large baleen whales but otherwise is intact. A huge multidisciplinary, international ... past 45 years. In particular the activities of the US, NZ and Italian Antarctic programs have been a ... biological populations, with these models applied elsewhere in the Southern Ocean and the World. Author(s ...
Meeting Document : WG-EMM-02/60 : Autor(es): D. Ainley (USA)
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Investigating emigration in stock assessment models of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 88.2C–H
of a cohort of tagged fish with few being recaptured after more than 3 years at liberty, a steepening ... from 1 year at liberty; (ii) SSRU 88.2H using tag recaptures from 3 years at liberty; (iii) SSRUs 88.2C ... 88.2C-H using tag recaptures from 3 years at liberty, but excluding tags from the south. For each model ... and emigration, combined with moderate to high exploitation rates Within a single area model ...
Meeting Document : WG-FSA-14/56 : Autor(es): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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Norwegian Cruise to Kong Håkons VII Hav 28 February – 10 April 2019
, long line and 3-4 CDT station with extensive water sampling for primary production and water chemistry ... April 2019. Our focus area was the ocean south of 65°S east of 0° meridian and 13.5° E (Fig 1) with a ... . At different depths, we ran ROV transects filming and retrieving samples for later species ... contained in addition to the ROV transect, benthic sampling with appropriate gear, fish and krill trawling ...
Meeting Document : WG-EMM-2019/48 : Autor(es): H. Steen
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Species profile of mackerel icefish (Champsocephalus gunnari)
Abstract: Mackerel icefish (Champsocephalus gunnari) has been exploited since the early 1970’s ... ’s with annual catches of a few thousand tonnes in each of the two areas. Aspect of the biology and ... information is scattered over various CCAMLR working papers of the last 15 years. The species profile collates ...
Meeting Document : WG-FSA-07/12 : Autor(es): K.-H. Kock (Germany) and I. Everson (UK)