Resultados de la búsqueda
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The biology and ecology of mackerel icefish, Champsocephalus gunnari – an Antarctic fish species that lack haemoglobin
some years. Champsocephalus gunnari has many characteristics typical of Antarctic fish species with ... characteristics in common, such as feeding mode and food, early life history, and growth in the first years of ... ability to reproduce at an early age coupled with a comparatively high fecundity and growth performance ... exploited since the beginning of the 1970's with reported annual catches exceeding 50- 100 000 tomes in ...
Meeting Document : WG-FSA-96/24 : Autor(es): Everson, I., Kock, K.-H.
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Beach debris survey – Main Bay, Bird Island, South Georgia, 1997/98
Abstract: The eighth year of surveys of beach man-made debris at Bird Island, South Georgia ... which were considerably less than the winter totals for the previous 5 years of collections. The number ... amount of man-made debris originating from these vessels. The increased totals of summer debris is cause ... for concern and suggests that CCAMLR needs to enhance its campaign to reduce the amount of man-made ...
Meeting Document : CCAMLR-XVIII/BG/6 : Autor(es): Delegation of the United Kingdom
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Estimation of the biomass of krill in Prydz Bay during January/February 1991, February/March 1992 and January/ February 1993 using echo integration
surveys indicated some association of krill with the shelf break in the western part of the survey area ... the middle of the range of densities estimated from seven surveys between 1981 and 1985 (Higginbottom ... et al. 1988). The distribution of the Sa values for the lower biomass years 1992 and 1993 were ... similar and distinctly different from the higher biomass year of 1991. The difference is characterised by ...
Meeting Document : WG-Krill-94/21 : Autor(es): T. Pauly and I. Higginbottom (Australia)
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Annual variation in breeding biology of gentoo penguins, (Pygoscelis papua) at Bird Island, South Georgia
-year period (1986-1988) at Bird Island, South Georgia, with particular reference to birds of known age ... varied annually, and with age of the breeding bird, nest location and, in one year, with laying date ... or breeding experience. Laying date varied significantly between all three years, being three weeks ... later in 1987, when the breeding population decreased markedly. Factors involved in the timing of ...
Meeting Document : WG-CEMP-90/38 : Autor(es): T.D. Williams (United Kingdom)
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Seasonal variation in acoustic estimates of krill density at South Georgia during 2001/2002
(middle), and one in May 2002 (late). The surveys were the second in a five-year series of observations ... around South Georgia in the 2001/2002 season: one in November 2001 (early); two during January 2002 ...
Meeting Document : WG-EMM-02/39 : Autor(es): C. Goss, S.A. Grant, N. Cunningham, J.L. Watkins, P.N. Trathan, E. Murphy and K. Reid (United Kingdom)
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Antarctic fur seal predator performance indices for the South Shetland Islands 1987/88–2002/03
at Cape Shirreff, Livingston Island measured female foraging trip duration, foraging range, diet (3 ... (female foraging trip duration) and C2b (pup growth rates). Measures of female foraging trip duration, pup ... ), pup growth rates (3), pup mortality, timing of reproduction, adult female survival and natality ... foraging trip durations (7.09d ±0.19), below average frequency of krill in fur seal diet (79.6% ±7.7 ...
Meeting Document : WG-EMM-03/54 : Autor(es): M.E. Goebel (USA)
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Larval development and spawning ecology of euphausiids in the Ross Sea and its adjacent waters in 2004/05
and adult stages. The onset of deepening was from early and later frucilia stages onward for E ... juvenile or adult stages. Eggs and larvae of E. superba occurred with gravid females along the slope, but ... the more northern species with the exception of E. crystallorophias, which recruited before E. superba ... . The intense spawning of E. crystallorophias and E. superb coincided with a period of development of a ...
Meeting Document : WG-EMM-10/P06 : Autor(es): K. Taki, T. Yabuki, Y. Noiri, T. Hayashi and M. Naganobu
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Growth of mackerel icefish (Champsocephalus gunnari) and age-size composition of populations in subarea of South Georgia
catches were based on fish of two contiguous year classes, strong 1984 year class and middle 1983 year ... represented by fish of two contiguous age groups. It was shown that in the 1980s during a number of years the ... subareas 48.3 and 48.2 in 1978 compared with 1985 may indicate on the common factors affected the icefish ... class. These year classes appeared against a background of the intensive icefish fishery, and krill ...
Meeting Document : WG-EMM-03/60 : Autor(es): K.V. Shust and E.N. Kuznetsova (Russia)
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Growth of mackerel icefish (Champsocephalus gunnari) and age-size composition of population in subarea of the South Georgia
catches were based on fish of two contiguous year classes, strong 1984 year class and middle 1983 year ... represented by fish of two contiguous age groups. It was shown that in the 1980s during a number of years the ... subareas 48.3 and 48.2 in 1978 compared with 1985 may indicate on the common factors affected the icefish ... class. These year classes appeared against a background of the intensive icefish fishery, and krill ...
Meeting Document : WG-FSA-SAM 03/7 : Autor(es): K.V. Shust and E.N. Kuznetsova (Russia)
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Adélie penguins as indicators of the state of the sea-ice in Adélie Land
distances to reach the open water during the incubation and early chick-rearing phases. The extended absence ... precipitations occurred only over 2-3 days in mid-November 2016 and several nests were buried under more than a ... meter of snow, but the snow falls were immediately followed by almost a week with temperatures ... years” occurring within three breeding seasons will definitely affect the demographics of the population ...
Meeting Document : WG-EMM-17/01 Rev. 1 : Autor(es): Y. Ropert-Coudert, A. Kato and C. Barbraud