Résultats de la recherche

1. Defining fishing grounds in the Scotia Sea

   x 10 nmile area, over the years but how important that location is to the fishery each year, which ... predictable location where the fishery obtains relatively reliable catches from one year to the next over a ... is judged by that location providing a reasonable catch in a given year and that the catch remains ... number of years. The quantity of interest is not only the total catch obtained from a location, say a 10 ...

   Meeting Document : WG-EMM-02/40 Rev. 1 : Auteur(s): I.R. Ball and A.J. Constable (Australia), S. Kawaguchi (Japan) and D. Ramm (CCAMLR Secretariat)

2. Diet and foraging effort of Adélie penguins in relation to pack-ice conditions in the southern Ross Sea

   years when pack ice was sparse. Foraging trip duration differed by colony, season and year and was ... colony, seasons and year. Diet differed among colonies only slightly. The fish Pleuragramma antarcticum ... were consumed predominantly in a year of heavy pack-ice cover; more adult krill were consumed in two ... was the most important prey, especially during years or periods within years when little pack ice was ...

   Meeting Document : WG-EMM-98/15 : Auteur(s): D.G. Ainley (USA), P.R. Wilson, K.J. Barton (New Zealand), G. Ballard, N. Nur (USA) and B. Karl (New Zealand)

3. PROPOSITION DE CAMPAGNE DE RECHERCHE FINANCEE PAR LA CCAMLR VISANT A SURVEILLER L'ABONDANCE DES PRE-RECRUES DE LEGINE ANTARCTIQUE DANS LE SECTEUR SUD DE LA MER DE ROSS

   years in Subarea 88.1 and for nine years in Subarea 88.2. The research and assessment work in these ... locations in different years, making it impossible to develop a consistent time series that would monitor ...

   Meeting Document : SC-CAMLR-XXX/07 : Auteur(s): Delegation of New Zealand

4. Temporal scales of foraging in a marine predator: implications for interpreting the distribution of prey

   prey patches at the meso-scale level. Only in one year of the study (1990/91) were there indications ... reduction in the number of prey patches available in that year but that prey patches were of poorer quality ... km) represented by short (5 rain) travel durations. In a study lasting 5 years, the distributions of ... travel durations between bouts of feeding changed between years. These changes suggested either that the ...

   Meeting Document : WG-EMM-95/23 : Auteur(s): Boyd, I.L.

5. Demographic studies of Antarctic krill Euphausia superba Dana in the Cooperation and Cosmonaut Seas (Indian sector of the Southern Ocean)

   years in the Cooperation Sea. Assuming growth for only 180 days per year, growth rates ranged from 0.120 ... -0.133 mm.d-1, during the first year of life, to 0.019-0.022 mm.d-1 during the fifth year. Von ... mortality rates. The duration of the life cycle of E.superba exceeded 5 years in the Cosmonaut Sea and 6 ... years of life. Based on long-term observations, the relationship between E.superba age composition and ...

   Meeting Document : WG-Krill-94/16 : Auteur(s): E.A. Pakhomov (Ukraine)

6. Determination of a statistically based survey area suitable for hydroacoustic stock assessment of Euphausia superba in the Elephant Island, King George Island, Bransfield Strait area

   -series of data from 1981, 1984 and 1978-1989 permitted resolution of inter-year differences in standing ... relatively uniform from year to year. Using only sub-area biomass leads to an ambiguous interpretation of the ... data as to whether high or law standing stock is due to low production (ie. "good" year vs ... . “bad” year) or differential effects of migration. Using the total of both sub-areas the survey area can ...

   Meeting Document : SC-CAMLR-VIII/BG/32 : Auteur(s): Delegation of USA

7. Diet variability and reproductive performance of macaroni penguins (Eudyptes chrysolophus) at Bird Island, South Georgia

   . frigida) in 2000. There was no clearly dominant prey group in 1999. The five-year average proportion of E ... (Euphausia superba) was the main prey in 17 out of 22 years. Amphipods (Themisto gaudichaudii) were the main ... gross energy content of individual meals was often above average in years when the diets contained fewer ... euphausiids, but fledging mass was always below average in these years. Although macaroni penguins are able to ...

   Meeting Document : WG-EMM-12/17 : Auteur(s): C.M. Waluda, S.L. Hill, H.J. Peat and P.N. Trathan (United Kingdom)

8. Analysis of krill fishery operations in Subarea 48.1: spatial-time distribution of CPUE and fishing efforts

   Abstract:  In previous years we revealed that period 2006-2011 is characterized by the highest ... values of standardized CPUE indices in the Subarea 48.1 for the last 25 years. We continue to investigate ... methods. Our investigation shows how fishery operated by years and month in each SSMUs with special ...

   Meeting Document : WG-EMM-14/21 : Auteur(s): S. Kasatkina and P. Gasyukov (Russia)

9. Spatio–temporal dynamics of Antarctic krill fishery: identification of fishing hotspots

   fishing fleet is concurring to know fishing grounds year after year, where they obtain high catches, and ... FHs. Results indicate that the fishery is presenting consistent FH across years, particularly during ... those years when the precautionary catch limit is reached. These events occur mainly in the centre of ... (>10 ton∙km-2) during years when the catch limit is reached. The analysis show that the krill ...

   Meeting Document : WG-EMM-16/52 : Auteur(s): F. Santa Cruz, B. Ernst and J.A. Arata

10. Inter-annual variation in condition index of the mackerel icefish Champsocephalus gunnari

    the region. Years when krill were scarce and condition index was consequently low, were consistent ... with years when indices from land-based krill predators also indicated krill were scarce. Author(s ...

    Meeting Document : WG-EMM-96/43 : Auteur(s): Parkes, G., Everson, I., Kock, K.-H.

Pages