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1. Composition and characteristics of ichthyofauna in pelagic waters of South Georgia (Subarea 48.3)

   on board after towing in each of these depth layers. Two to three series of these tows were made during ... low in the morning, increased during the day and approached its maximum level by the end of the day ... in the southeastern shelf area between Clark Rocks and the eastern end of South Georgia at depths up to 200 m where ... (Subarea 48.3) Abstract / Description:  This paper presents the results of randomly stratified pelagic ... studying the vertical migrations of some of the most abundant species were carried out during the six ... pelagic surveys. Horizontal distribution and length composition of fish, as well as the comparative ... distribution of krill and juvenile Champsocephalus gunnari were studied. The pelagic component of the ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 125–164 : Author(s): Frolkina, G.A., M.P. Konstantinova and I.A Trunov

2. Seal mitigation measures on trawl vessels fishing for krill in CCAMLR Subarea 48.3

   of the net rather than the roof. After this modifi cation, no further captures were reported. The vessel ... immediately after the escape opening. This opening was later increased to 1 m to allow seals to escape more ... - 04/17. CCAMLR Hobart, Australia. Table 2: Seal entanglements before and after application ... for that vessel. Vessel Entanglements before application Entanglements after application Number (n) Rate ... Abstract / Description:  At the 2004 meeting of the Working Group on Ecosystem Monitoring and Management ... (WG-EMM) in Siena, Italy, the UK reported on the by-catch of fur seals (Arctocephalus gazella) in the ... avoid fur seal deaths in the fishery. WG-EMM requested that the UK provide further details of the ... methods employed for consideration by the ad hoc Working Group on Incidental Mortality Arising from ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 195–205 : Author(s): Hooper, J., J.M. Clark, C. Charman and D. Agnew

3. CCAMLR ecosystem monitoring and a feedback management procedure for krill

   experimental and control areas before fishing begins as well as after it has begun. This is known ... of fishing will alter (become smaller or larger) after fishing begins. Further, the ability to determine ... as the 'Before-After-Control Impact' (BACI) design. Here, the prediction is that, if fishing affects ... (de la Mare, 1991); and (iii) it is feasible. WG-CEMP now has the data available to begin ... / Description:  The CCAMLR Ecosystem Monitoring Program has been developing a technique which might detect short ... attributable to loss of prey through fishing activities. The principal fishery in the CCAMLR Convention Area is ... the krill fishery and this paper examines ways in which the information being obtained from the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 345–350 : Author(s): Constable, A.J.

4. Variations in condition indices of mackerel icefish at South Georgia from 1972 to 1997

   40°W and 44"W. The series of data have been grouped by month, beginning in August 1972 ... 1997 Abstract / Description:  Mackerel icefish (Champsocephalus gunnari) are widespread on the South ... Georgia shelf, Antarctica, and have been fished commercially since the early 1970s. They are known to feed ... predominantly on krill. An index of condition which uses the ratio of the measured total mass to the estimated ... mass is shown to provide a good indicator of local krill density. The index is likely to be little ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 119–132 : Author(s): Everson, I. and K.-H. Kock

5. Australian research on Antarctic bird and seal diets

   : E. vallentini Low early Dec, peak early Jan, partial decline to mid Feb then ± steady Only common after mid ... P. antarcticum comprised SO% of the diet in the first week after chick hatch, but declined to 10% by the 4th ... from >80% in week 2 to about 55% by week 5 after chick hatch. E. superba increased from about 15 ... P. antarcticum length range was 88-175 mm. After October, Adelie penguin remains were common in faeces. No krill ... data on the diets of important vertebrate predator species in Prydz Bay and around the sub-Antarctic ... Heard and Macquarie Islands have been collected during the last seven years. Published and unpublished ... cantered the CCAMLR Ecosystem Monitoring Programme's priority study area, Euphausia superba forms a ... rather low proportion of the diet of most vertebrate predators. Euphausia crystallorophias and the fish ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 231-249 : Author(s): Williams, R.

6. [node:field-journal-volume]:37-51

   at which the fi sh were maturing occurred at the lower end of the size range of fi sh sampled ... after its fi rst year in the Skagerrak Sea and juveniles are most abundant in the Rockall Trough ...

   Science Journal Paper : 37–51

7. Factors to consider in developing management measures for krill

   conservation measures only after the need for them is apparent. In the context of CCAMLR, this would mean ... ., declined) well after the fact. In most fish stocks, recruitmellt is highly variable from year to year ... of changes in an ecosystem may not be unambiguously identifiable after the event. This may lead to a delay ... strategy should begin with simple, pragmatic interim safeguards (and model-tested) empirical approach ... / Description:  A brief review of the objectives of the Convention for the Conservation of Antarctic Marine ... Living Resources is given along with an outline of steps for the evolution of management procedures for ... management, modelling, indicator species, pulse fishing, and the use of open and closed areas and seasons are ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 175–187 : Author(s): de la Mare, W.K.

8. Southern elephant seals and CCAMLR

   to the island after attaining nutritional independence and are probably in competition with the fur seals ... and adult bulls of 5 a and older, and ther~fore at or after the growth spurt associated with puberty ... research findings of primarily South African (including some French and Australian results) studies on the ... southern elephant seal (Mirounga leonina) in the Kerguelen province of the Southern Ocean. Sub-populations ... studies during the animals’ terrestrial phase have failed to explain this observed decline which has also ... been recently confirmed for the Macquarie Island stock. The availability of food, competition with ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 465-473 : Author(s): Bester, M.N. and D.G.M. Miller

9. A von Bertalanffy growth model for toothfish at Heard Island fitted to length-at-age data and compared to observed growth from mark–recapture studies

   , whereby fi sh are selected by on-deck sub-subsampling after all fi sh in the LF sample are fi rst ... mm. Days-at-liberty ranged from 1 to 2 529, with 898 recaptures occurring after 175 days and 270 ... log-likelihood with respect to (θ, σ) after extending the notation in an obvious way ... be made up of a period of zero growth after tagging (Xiao, 1994). Another possible cause ... aged. Subsampling of random lengthfrequency (LF) data used to obtain the samples of fish for ageing ... used length-bin sampling involving a fixed sample size per bin. Estimation of the VB parameters used a ... definition of the likelihood function based on variable probability (VP) sampling due to the prespecified ... length-dependent selectivity function for trawl fishing and the additional effect of length-bin sampling ...

   Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 43–66 : Author(s): Candy, S.G., A.J. Constable, T. Lamb and R. Williams

10. Status of krill target strength

    the anterior end of the eye to the tip of the telson. When the length is not defined in the cited data source ... and the sonar will be most able to record it. However, at or near end-on incidence, the echo is quite weak ... end-on incidence may be below the noise level or "detection threshold" of the sonar, hence the echo ... is not valid for end-on or near end-on incidence. In that region, the solution predicts zero response while ... Paper Title:  Status of krill target strength Abstract / Description:  Empirical estimates for the ... measurements, namely thresholding. Theoretical estimates for the target strength are derived from the deformed ... is an empirical basis. The theoretical estimates show a non-monotonic dependence of target strength ... high signal-to-noise-ratio conditions, are consistent with the general pattern. Several specific ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 101–126 : Author(s): Foote, K.G., D. Chu and T.K. Stanton

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