Search results
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Change of sex ratio of krill (Euphausia superba) from austral early summer to midsummer in 1983/84 in the vicinity of Prydz Bay, Antarctica
Abstract: In this present report the change of the Antarctic krill distribution pattern from ... December 1983 to January/February 1984 in the vicinity of Prydz Bay was analysed. The results showed the ... remarkable change of sex ratio and coefficient of fatness between the early summer and the midsummer. The ... waters indicating the high ratios of female krill with the high coefficient of fatness were considered to ...
Meeting Document : WG-Krill-94/30 : Author(s): M. Naganobu and S. Kawaguchi (Japan)
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Stomach contents of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea region in 2010 and a comparison with 2003
Abstract: The stomach contents of 273 Dissostichus mawsoni captured by bottom longline in the ... Ross Sea region during the 2010 summer fishing season were analysed. The D. mawsoni sampled were caught ... items, of which 13 contained only digested prey, leaving 185 stomachs for analysis. The majority of ... these stomachs were collected from the continental slope (n = 164) where Whitson’s grenadier (Macrourus ...
Meeting Document : WG-FSA-10/22 : Author(s): D.W. Stevens, J. Forman and S. Hanchet (New Zealand)
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Using preferred habitat models for chinstrap penguins (Pygoscelis antarctica) to help improve krill fisheries management during the penguin breeding season
planning. Using habitat models to understand which variables influence the distribution of predators at-sea ... can enable us to predict the distributions of un-tracked populations, and thus help to identify any ... potential threats they may face. In the Southern Ocean the expanding krill fisheries have the potential to ... impact penguin populations. We show that the distribution of chinstrap penguins can be predicted using ...
Meeting Document : WG-EMM-17/33 : Author(s): V. Warwick-Evans, N. Ratcliffe, H.L. Clewlow, L. Ireland, A. Lowther, F. Manco and P.N. Trathan
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Population dynamics of wandering albatross Diomedea exulans and Amsterdam albatross D. amsterdamensis in the Indian Ocean and their relationships with longline fisheries: conservation implications
Abstract: Studies carried out over the past three decades at Crozet and Kerguelen Islands in the ... 1986 have shown slow recovery. The population of the endangered Amsterdam albatross Diomedea ... study of the Crozet population indicates that the earlier decline was mainly the result of increased ... band recoveries of non breeding birds indicate that during and outside the breeding season these ...
Meeting Document : WG-FSA-96/09 : Author(s): Jouventin, P., Brothers, N., Weimerskirch, H.
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Implementing Article II of the CAMLR Convention
Abstract: This paper presents a document written by Dr. Robert (Bob) Hofman and submitted to the ... 2015 CCAMLR Symposium in Santiago, Chile. Dr. Hofman was a member of the United States delegation ... during the negotiation of the CAMLR Convention. ASOC has provided some additional background for CCAMLR’s ... consideration. As a participant in the Convention negotiations, Dr. Hofman has an in-depth understanding of the ...
Meeting Document : CCAMLR-XXXIV/BG/25 : Author(s): Submitted by ASOC
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Influence of tag numbers, size of tagged fish, duration of the tagging program, and auxiliary data on bias and precision of an integrated stock assessment
collection, this study investigated how the bias and precision of a CASAL assessment is influenced by various ... aspects of a tagging program, in particular the effects of the numbers of fish tagged, the duration of a ... tagging program, the size of tagged fish, and the type of auxiliary data used in the assessment. The ... numbers were important particularly in the early stages of an exploratory fishery to ensure some ...
Meeting Document : WG-SAM-12/24 : Author(s): P.E. Ziegler (Australia)
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Breeding biology and diet of pintado petrels Daption capense at Bouvetøya during the summer of 1996/97
Abstract: A study on the breeding biology and diet of Pintado Petrels Daption capense was ... success for the total 300 pairs of breeding Pintado Petrels at Nyrøysa was 59 %. Three study colonies were ... was 85 %. Rates of failure were higher during the chick stage than in the egg stage for both of these ... two study colonies. The mean hatching date in these colonies was 11 January, and the first and last ...
Meeting Document : WG-EMM-97/56 : Author(s): Isaksen, K., Huyser, O., Dyer, B.M., Cooper, J., Ryan, P.
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Review of activities in monitoring marine debris in the CAMLR Convention Area
entanglements and hydrocarbon soilings were received from South Africa, the United Kingdom, and Uruguay. Non ... -fishing items such as plastics, packaging materials and wood remain the most common type of debris items ... found in beach surveys. The fishing items found were mostly from longline and trawl origins. Plastic ... packaging bands continue to be found in beach surveys, however, for the first time since these surveys ...
Meeting Document : WG-FSA-12/64 : Author(s): Secretariat
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Marine debris collected at Cape Shirreff during the Antarctic season 2000/01
Abstract: The eighth annual beach debris survey was carried out at Cape Shirreff (62º 28' S ... ., 60º 48' W.), Livingston Island, South Shetland Islands, Antarctica during the austral summer 2000 ... the snowmelt occurred. The debris were counted by beaches, measured, weighed and classified into four ... kg. As it used to occur during all previous Antarctic seasons plastic material was the most abundant ...
Meeting Document : SC-CAMLR-XX/BG/25 : Author(s): Delegation of Chile
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Review of CCAMLR activities on monitoring marine debris in the Convention Area
Abstract: The current status of national surveys on monitoring of marine debris and their impact ... on marine mammals and seabirds in the Convention Area has been reviewed. The CCAMLR Marine Debris ... debris for the first time from Marion Island (Subarea 58.7). There are 4 sites that have data for more ... wood items, reached a peak in the period 1994-1996 at Bird Island and Signy Island, but have declined ...
Meeting Document : SC-CAMLR-XXIV/BG/13 : Author(s): Secretariat