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Moulting interval and growth of juvenile Antarctic krill fed different concentrations of the diatom Phaenodactylum tricornutum in the laboratory
0.047 mm day –1, which is too slow to support the hypothesised 2-year life-span of this animal in the ... –5.0 mgC 1 –1. Intermoult period (IP) decreased, but an increment of body length per moult (∆BL) of ... on IP or (∆BL was seen at concentration beyond 1.0 mgC 1 –1. IP plateaued at 23.8 days and (∆BL ... slow to support the hypothesised 2-year life-span of this animal in the field. Growth conditions of ... period (IP) decreased, but an increment of body length per moult (6BL) of juvenile krill increased, up ... to a concentration of 1.0 mgC 1-1 • No further effect of food concentrations on IP or 6BL was seen ... postulada para este animal en la region. Se discuten las condiciones de crecirniento del krill en el ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 223-225 : Autor(es): Ikeda, T. and P.G. Thomas
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Areal and seasonal extent of sea-ice cover off the northwestern side of the Antarctic Peninsula: 1979 to 1996
Antarctic Peninsula: 1979 to 1996 Abstract / Description: Analysis of seasonal sea-ice cover of an area ... four periods of extensive ice cover during the last 18 years. Variability in seasonal timing, areal ... extent, seasonal duration and persistence of sea-ice over multiple years is apparent and is consistent ... with features described by Stammerjohn and Smith (1996) for ice cover in the Bellingshausen Sea ... were subsampled for an area of 40 X 50 pixels (1.25 X 10Qm2) centred on the northwestern side of the ... Ocean: an analysis for the west Antarctic Peninsula region. AMS Sixth Conference on Climate Variations ... years is apparent and is consistent with features described by Stammerjohn and Smith (1996) for ice ... use of the same data sources to derive an index of ice cover for a larger area, encompassing the ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 65–73 : Autor(es): Hewitt, R
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Age and growth of spiny icefish (Chaenodraco wilsoni Regan, 1914) off Joinville–D’Urville Islands (Antarctic Peninsula)
1–5 years for males and 1–4 years for females of C. wilsoni. Applying the von Bertalanffy (VB ... males. Age-at-sexual maturity was estimated to be about 2 years for females and 2.5 years for males ... selected for the study, consisting of 120 females and 98 males. The age of fish was estimated by counting ... annuli on transverse sections obtained by grinding and polishing whole otoliths embedded in epoxy resin ... ., 2007). As a rule, the net was generally towed at about 3–3.5 knots for 30 min on the bot- tom during ... dominated by a strong peak at 26 cm TL, with two other well-defined modes at 20 and 30 cm TL (Figure 3b ... population (c). 0 5 10 15 20 25 30 35 40 0 1 2 3 4 5 6 Age (years) To ta l l en gt h (c m ) a(a ... 20 25 30 35 40 0 1 2 3 4 5 6 Age (years) To ta l l en gt h (c m ) c(c) Age (years) To ta ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 115–130 : Autor(es): La Mesa, M., A. De Felice, C.D. Jones, K.-H. Kock
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Diet of the Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (Subarea 88.1)
licensed participants. Catch levels for an exploratory fi shery are also managed at a precautionary level ... - ing under an exploratory permit in the Ross Sea (Subarea 88.1) during two summer seasons (January ... weddelli) from an ice hole in McMurdo Sound. The seal preyed only on D. maw- soni, the stomachs of which ... comments on an earlier draft of the manuscript. This work was partially funded by the New Zealand ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 113–123 : Autor(es): Fenaughty, J.M., D.W. Stevens and S.M. Hanchet
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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 ... currently informed by data on annual catches and by CCAMLR’s annual notification procedure. There has been ... information can be used in combination to provide information to the Commission on potential changes in the ... Secretariat so that it can annually update a register of krill-related patents which will be of use for ... Commission on any of the fac- tors that might drive an increase in the fishery for Antarctic krill, so the ... Applicant control over, and protection of, the patented tech- nology for 20 years (IP Australia, 2010 ... ) there was an increasing trend in the later years for non-traditional fishing nations to be involved ... (v) There was an increasing trend in the later years for patents directed at using krill for medical ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 135–144 : Autor(es): Foster, J., S. Nicol and S. Kawaguchi
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International CCAMLR applied research and monitoring program, Prydz Bay priority area
Australia towards the first five years of an International CCAMLR Applied Research and Monitoring Program in ... area Abstract / Description: An outline is given of a proposed scientific research contribution by ... the Prydz Bay area. Emphasis is placed on the krill based part of the marine community in the Prydz ... Bay area. Some attention is also given to the fish and squid based part of the marine community on the ... for information on feeding throughout the year, the Australian contribution is centred upon shore ... a proposed scientific research contribution by Australia towards the first five years of an ... sharpened, an assessment will be made of the practicability of applying each in the field on both the ... observations. It is planned that there be observers for crabeater seals on early season resupply voyages ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 283-295 : Autor(es): Australia
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Distribution, morphology and ecology of Macrourus whitsoni and M. caml (Gadiformes, Macrouridae) in the Ross Sea region
as M. whitsoni. The first comparison of the distribution and ecology of the two species of Macrourus ... teeth in the lower jaw allowed the two species to be distinguished both in the laboratory and by ... . whitsoni caught with depth. Catches of females of both species exceeded that of males (especially for M ... . caml). Macrourus caml grows slower, reaches a larger size, lives longer and is heavier for a given ... . Evidence of feed- ing on the seabed for M. caml was found: fragments of coral, an echinoderm, parts of an ... and weighed them, and then returned whole fish frozen below –20°C to the laboratory for analysis ... occur together. Depth was found to be a sig- nificant predictor for the proportion of M. whitsoni ... about 20% heavier for a given length than M. whitsoni. Length of intestine The length of intestines ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 37–61 : Autor(es): Pinkerton, M.H., P. McMillan, J. Forman, P. Marriott, P. Horn, S. Bury and J. Brown
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The role of fish as predators of krill (Euphausia superba) and other pelagic resources in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop)
: Krill forms an important part of the diet of many Antarctic fish species. An understanding of the role ... abundance, such as through fishing or environmental change, are likely to impact on the food webs in the ... when these areas were exploited commercially for Electrona carlsbergi. Currently, the best estimates of ... on various scales, as well as with the availability of alternate prey in the different regions in the ... estimates of fish stocks were available for the split-years (1 July to 30 June) 1975/76 and 1977/78 (Table ... to estimate an overall abundance estimate for N. coriiceps on the shelf. Biomass after ... abundance. CEMP considers the effect of an increase in krill harvesting on other components of the ... data with respect to their relevance for modelling approaches. The analysis in this paper focused on ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 115–169 : Autor(es): Kock, K.-H., E. Barrera-Oro, M. Belchier, M.A. Collins, G. Duhamel, S. Hanchet, L. Pshenichnov, D. Welsford and R. Williams
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Quantification of Southern Ocean phytoplankton biomass and primary productivity via satellite observations and biogeochemical models (submitted to the 2008 Joint CCAMLR-IWC Workshop)
biogeochemical models for the Southern Ocean is presented, with a focus on those models that have been validated ... productivity is presented, focusing on the vertically generalised production model (VGPM) and more recent ... blooms is presented for the major provinces surrounding Antarctica. Some of the published information ... biogeochemical models for the Southern Ocean is presented, with a focus on those models that have been validated ... a similar algorithm but with CZCS data (Arrigo et al., 1998). What could be responsible for two ... /06, an interdis- ciplinary survey was conducted of East Antarctica (30°E to 80°E). The suite of ... mechanism for the separation of the two groups. West Antarctic Peninsula Prezelin et al. (2004) documented ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 247–265 : Autor(es): P.G. Strutton, N.S. Lovenduski, M. Mongin and R. Matear
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Krill biomass assessment in Statistical Area 48 from the RV AtlantNIRO data - Autumn 1989/90
1989/90 Abstract / Description: A krill biomass census survey was carried out at two fishing grounds ... speed was 3.2 to 3.6 knots. The total krill stock on the poorly studied site off the South Sandwich ... been operating over an area of about 600 km2• The specific biomass reached its greatest level here (on ... census survey was carried out at two fishing grounds in the South Sandwich and South Orkney Islands ... stock on the poorly studied site off the South Sandwich Islands was assessed at 3.8 million tonnes ... other inadequately studied areas of its distribution. In this connection, an attempt was made to ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 115–121 : Autor(es): Fedotov, A.C.