Результаты поиска

1. Foraging behaviour and reproductive success in chinstrap penguins: the effects of transmitter attachment

   may be no difference between trip durations obtained by applying the transmitters to one or both ... Paper Title:  Foraging behaviour and reproductive success in chinstrap penguins: the effects of ... transmitter attachment Abstract / Description:  The use of radio telemetry has been accepted as a standard ... method with which to monitor foraging trip duration in penguins by the CCAMLR (Commission for the ... cm2 front section area), there may be no difference between trip durations obtained by applying the ... ) at the beginning of the observation period were used as a control group. No transmitters were ... recorded as the first day that a nest was observed with no chicks. A failure date of 13 January 294 ... between the three groups within each period revealed that there was no significant effect of transmitters ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 291–303 : Автор(ы): Croll, D.A., J.L. Bengtson, P.L. Boveng, M.E. Goebel and J.K. Jansen

2. Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia

   the season in August. Killer whale interactions appear to be more consistent with no obvious pattern ... Paper Title:  Estimating the impact of depredation by killer whales and sperm whales on longline ... data collected on longliners between 2003 and 2009 were analysed to look at the levels of depredation ... , and often appear to actively seek out fishing vessels and ‘strip’ the line of a large number of ... on observed sets which had no cetacean interactions, Cy,l is the declared catch in year y on ... sets having interactions of type l and sets having no cetacean interactions. The three interaction ... confirm the much higher impact of killer whales, with CPUE usually being reduced by 50%, but no ... with no general trend during the time period from 2003 to 2009 (Table 2). The large difference in ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 163–178 : Автор(ы): Moir Clark, J. and D.J. Agnew

3. Vertical migrations of mackerel icefish (Champsocephalus gunnari) on the South Georgia shelf

   had yielded almost no catches at all. The information obtained on vertical migrations of C. gunnari ... Paper Title:  Vertical migrations of mackerel icefish (Champsocephalus gunnari) on the South ... Georgia shelf Abstract / Description:  High values of coefficient of variation resulting from the ... calculation of mackerel icefish biomass (Champsocephalus gunnari) from trawl survey data on the South Georgia ... observed at night. Fishing during this period with bottom trawls had yielded almost no catches at all. The ... this period yielded almost no catches at all. The second peak from 11:00 to 16:00 hr was observed only ... (CHAMPSOCEPHALUS GUNNARI) ON THE SOUTH GEORGIA SHELF J.A. Frolkina and V .I. Shlibanov* * Abstract High ... values of coefficient of variation resulting from the calculation of mackerel icefish biomass ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 3–14 : Автор(ы): Frolkina, J.A. and V.I. Shlibanov

4. Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.1

   reference area sizes. Although no toothfish fishery data along the shelf area in austral autumn – winter was ... Abstract:  The current season (2014/15) is the final one of the first three-season research which ... began in 2013 in data-poor fisheries. In the present report, catch, effort and biological data recorded ... by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ...

   Meeting Document : WG-SAM-15/05 : Автор(ы): Delegation of Japan

5. ASSESSMENT MODELS FOR ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN SUBAREA 88.2 SSRU E FOR THE YEARS 2002/03 TO 2008/09

   Abstract:  We provide an update of the Bayesian sex and age structured population stock assessment ... model for Antarctic toothfish (Dissostichus mawsoni) in the SSRU 88.2E, using revised catch, catch-at ... -age and tag-recapture data from New Zealand vessels and for selected trips. The New Zealand vessels ... model resulted in a higher estimate of initial biomass than the same model for 2006, but the estimated ...

   Meeting Document : WG-FSA-09/41 : Автор(ы): A. Dunn and S.M. Hanchet (New Zealand)

6. Estimating future krill catches that meet the CCAMLR and alternative decision rules for FAO Subarea 48.1 using an integrated assessment model

   spawning biomass instead of to projections with no fishing. Catch levels that meet the various decision ... incorporates catch and length-composition data from the krill fishery with biomass indices and length ... -compositions from research surveys has been developed. The model uses statistical fits to these data to ... estimate the effects of the fishery on the krill population. The model estimates parameters representing ...

   Meeting Document : WG-EMM-15/51 Rev. 1 : Автор(ы): D. Kinzey, G.M. Watters and C.S. Reiss (USA)

7. Is population structure of Patagonian toothfish (Dissostichus eleginoides) determined by the Antarctic Circumpolar Current?

   Abstract:  Water transported by the Antarctic Circumpolar Current (ACC) in the Southern Ocean may ... off the southern South American continent around the Falkland Islands north of the Sub-Antarctic Front ... of the ACC, and off Kerguelen and South Georgia Islands, situated respectively in the southern Indian ... and Atlantic Oceans to the south of the Polar Front. We fitted von Bertalanffy (VB) models ...

   Meeting Document : WG-FSA-03/84 : Автор(ы): J.R. Ashford, C.M. Jones, E. Hofmann (USA), I. Everson (United Kingdom) and G. Duhamel (France)

8. The US commercial krill fishery in Area 48: development, fishing patterns, and decision making

   Ocean had no prior experience fishing for krill, anecdotal and historical information served as the ... Abstract:  A U.S. flagged commercial factory trawler, the Top Ocean, started fishing operations ... year since the initial fishing trials. This paper presents information on the development, yields, and ... decision making processes involved in harvesting krill by the U.S. fishery. Because the Captain of the Top ...

   Meeting Document : WG-EMM-02/18 : Автор(ы): C.D. Jones and M. Hull (USA)

9. Larval development and spawning ecology of euphausiids in the Ross Sea and its adjacent waters in 2004/05

   no juveniles occurred concurrently. Thus the slope does not appear to be a nursery ground for this ... Abstract:  The horizontal and vertical distributions of larvae and reproductive timing of ... euphausiids were investigated in the Ross Sea and its adjacent waters during austral summer 2004–2005 ... . Occurrences of larvae of Euphausia frigida and E. triacantha were confined to the northern oceanic area where ...

   Meeting Document : WG-EMM-10/P06 : Автор(ы): K. Taki, T. Yabuki, Y. Noiri, T. Hayashi and M. Naganobu

10. Distribution of Soviet commercial fleet at krill fishery in the South Orkneys subarea (Subarea 48.2) during 1989/90

    Abstract:  The results of analysis of haul by haul catch statistics of Soviet commercial fleet ... during 1989/90 season (totally 3614 hauls for the period from 1.11.1989 to 12.06.1990 are presented ... . Actually during the whole season fishing vessels worked in one fishing ground off the north-western edge of ... 6.9-7.1 t/hour by May-June. Stability of the fishing ground is stipulated by peculiarities of the area ...

    Meeting Document : WG-EMM-97/50 : Автор(ы): Sushin, V.A.

Страницы