Résultats de la recherche

1. Low breeding success of the Adélie penguin at Béchervaise Island in the 1998/99 season

   Monitoring Program (CEMP) has been designed to detect changes in ecosystem performance by monitoring ... of a krill fishery to penguin breeding success. METHODS Standard methods, as prescribed by ... of the chicks have creched, according to CEMP A6) divided by the number of incubated nests ... . Differences between annual breeding success rates were identified by a one-way ANOVA and classified into ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 151–167 : Auteur(s): Irvine, L.G., J.R. Clarke and K.R. Kerry

2. A possible framework in which to consider plausible models of the Antarctic marine ecosystem for evaluating krill management procedures

   ; Constable et al., 2000; Kock, 2000). A work plan has been adopted by CCAMLR to assist in the devel- opment ... impacted by its environment (other populations as well as the physical environment). This approach is ... element is largely governed by its magnitude (abundance). The ‘stage’ of the element may be important ... stage is not constant and governed by the present age structure. The remainder of this section ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 99–117 : Auteur(s): Constable, A.J

3. Seabird interactions with longlining operations for Dissostichus eleginoides at the South Sandwich Islands and South Georgia

   hooks during setting operations) could reduce bait loss to birds by u p to 69% - representing a ... was carried out by bottom longline (Figure 1). This consisted of a 9 mm diameter main line made of ... lines. The main line was subdivided into four sections by marker buoys. Each section consisted of 75 ... probability of being retained on the hook during the setting operation than other baits commonly used by ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 143–153 : Auteur(s): Ashford, J.R., J.P. Croxall, P.S. Rubilar and C.A. Moreno

4. Integration of CPUE data into assessments using the Generalised Yield Model

   ) and driven by estimates of recruitment strength derived from trawl surveys (Constable and de la Mare ... most recent years, and that the trend in biomass predicted by the GYM had shown a smaller decline ... than that indicated by the standardised CPUEs. On these grounds, it recommended that the catch limits ... recommended that the catch limit should be equal to that indicated by the GYM analysis (SC-CAMLR, 1999 ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 65–74 : Auteur(s): Kirkwood, G.P. and A.J. Constable

5. The effects of monitoring procedures on Adélie penguins

   ). Disturbance to individuals and colonies by these research activities may result in decreased breeding ... altering or biasing the very data we are attempting to collect. The demographic studies recommended by ... . The system utilises implanted transponders for identification of individual birds. By using ... 550 nes ts ) were individually identified by means of either an electronic t r ansponde r tag ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 155–164 : Auteur(s): Clarke, J. and K. Kerry

6. Distribution of fish larvae at South Georgia: horizontal, vertical, and temporal distribution and early life history relevant to monitoring year-class strength and recruitment

   island is an important breeding area for higher predators which are also studied by shorebased research ... represented by filled circles in the Figures 2-17 follows Figure 1. For most hauls a single specimen caught ... alongside the foredeck of the ship. This suggests that the eggs were not adequately sampled by MRMT8 nets ... plotted for each net fished as number of specimens per 105 m3 volume filtered by the 8 m2 , 4.5 mm mesh ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 105-141 : Auteur(s): North, A.W.

7. Results of fish stock assessment survey, South Georgia, December 1987 - January 1988

   fishery was supported mostly by the catch of Notothenia rossii, which yielded hundreds of thousands of ... striking. By 1985 the stock was estimated to be less than 10% of its pristine size (Kock 1985). The ... fishery is presently supported by catches of Champsocephalus gunnari, but its decline is also evident ... and 1980/81 abundance estimates decreased by as much as two orders of magnitude (Kock et al. 1985 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 19-52 : Auteur(s): McKenna, Jr., J.E. and S.B. Saila

8. Phytoplankton distribution in the mixed layer: implication to krill abundance

   only be. evaluated by a Lagrangian type model. They also note that " .. the power of the Lagrangian ... knowledge about how complex trajectories affect photosynthetic performance by phytoplankton; we need to ... interaction can be "directly" evaluated by the model. Recent advancements of computer technology make the ... was discussed by Weber and EI-Sayed (1985). Hence, we think that studying the distribution of the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 331–356 : Auteur(s): Yamazaki, H. and T.R. Osborn

9. Response to Everson (2008)

   both crucial input parameters used by CCAMLR to set precautionary catch limits for krill (Hewitt et ... generally are being used increasingly by ecologists (e.g. Ellison, 2004), and MaxEnt methods are ... function of available effort from the amount (length) of cruise track that could be sampled by the ... and Hampton, 1989) that Dr Everson recognises. The MaxEnt approach, by contrast, takes explicit ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 195–198 : Auteur(s): Brierley, A.S., B.G. Heywood and S.F. Gull

10. Preliminary analyses of data collected during experimental phases of the 1994/95 and 1995/96 Antarctic crab fishing seasons

    with frozen herring and the carcasses of various fishes caught as by-catch. Haul-specific soak times ... saturate the gear. The data analysed in this paper were provided by scientific observers. There were ... -specific string identification number, location (identified by the squares drawn in Figure l), CPUE, mid ... and Table 1: Summary statistics for data collected from hauls made by the FV Anzerican Clzanzpion ...

    Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 141–159 : Auteur(s): Watters, G

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