Résultats de la recherche
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Antarctic fur seal predator performance indices for the South Shetland Islands 1987/88–2002/03
foraging trip durations (7.09d ±0.19), below average frequency of krill in fur seal diet (79.6% ±7.7 ... Abstract: Fifteen predator performance indices for Antarctic fur seals breeding at two sites in ... (female foraging trip duration) and C2b (pup growth rates). Measures of female foraging trip duration, pup ... at Cape Shirreff, Livingston Island measured female foraging trip duration, foraging range, diet (3 ...
Meeting Document : WG-EMM-03/54 : Auteur(s): M.E. Goebel (USA)
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Toothfish and skate tagging methods
Description / Abstract: Available in English only ... are detailed in CM 41-01/Annex C. (e.g., Tagging rate, tagging suitability criteria) • Additional ... tagging programmes are specified in CMs 41-02 through 41-09. • See http://www.ccamlr.org/en/science ... (outside the lips, jaw, or cheek), or in the back of the mouth. Gills Gills pink or white Bleeding ... hook is in gills or throat – DO NOT TAG 32 33 Applying tags • Memorize a routine ...
Document : Site Section: Science
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Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey
relate potential krill yield to a pre-exploitation survey estimate of krill biomass. In this paper, the ... fishing mortality, as specified by the Fourth Meeting, results in marked reductions in the probabilities ... / l2 to 5/12), while the pre-exploitation biomass survey is assumed to take place in the middle of ... . and for model 2: The survey estimate of biomass is made in the middle of the growth season (i.e. mid ... ' y = 10 (the year before fishing commences), 'measure' the a+ biomass in mid-season (i.e., the middle ... -exploitation survey estimate of krill biomass. In this paper, the approach is extended further so as to ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 81–106 : Auteur(s): Butterworth, D.S., G.R. Gluckman, R.B. Thomson, S. Chalis, K. Hiramatsu and D.J. Agnew
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WG-FSA-08/60
to retrieve lost gear there are environmental implications. New Zealand vessels working in the Ross ... Toothfish in CCAMLR Waters. Additional information is included listing and discussing circumstances and ... option of simplifying this Measure in a similar manner to that successfully implemented in the ... exploratory fisheries in Subareas 88.1 and 88.2. SUMMARY OF FINDINGS AS RELATED TO NOMINATED AGENDA ...
Document : Site Section: Publications
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Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined with various codends
. It was found that the selectivity properties of twine codends are unsatisfactory in the case of ... used in fishing for them requires further research. It should first of all cover twine codends with a ... -meshed Inset In lower part Of codend E - 5 floats
Lost segment of ... selection. In fact, they constituted the middle and final part of a typical selectivity ogive, which was ... selectivity properties of twine codends are unsatisfactory in the case of Antarctic icefish, burnphead ... Sea icefish and South Georgia icefish the determination of a proper mesh size of trawls used in ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 1-48 : Auteur(s): Zaucha, J.
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Distribution of mackerel icefish (Champsocephalus gunnari) (Channichthyidae) around South Georgia at various stages of its life cycle
cm in length) were mainly found in the southern part of the study area, immature fish (15–25 cm) in ... the east and southwest, and adults (25–39 cm) in the north. The distribution of C. gunnari changes ... bottom during the day and in the water column at night. Larger fish (>40 cm) did not undertake ... vertical migrations. Variations found in the depth distribution of C. gunnari relate both to fish length ... m. During May, only pre-spawning females of 30–39 cm were caught in the northern and eastern ... about 10%. In the southern and eastern areas, only individual fi sh were found with mature gonads ... observed in the northeastern and eastern areas of the shelf, close to spawning grounds (Shust, 1998 ... . gunnari were observed not only in the eastern and southeastern areas of the shelf but Frolkina 56 T ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 49–69 : Auteur(s): Frolkina, Zh.A
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Conservation Measure Conservation Measure 51-04 (2008)
General measure for exploratory fisheries for Euphausia superbain the Convention Area in the 2008 ... /09 season Species: Euphausia superba Adopted at Meeting: CCAMLR-XXVII Period in Force: 2008- 2009 ... MEASURE 51-04 (2008) General measure for exploratory fisheries for Euphausia superba in the Convention ... Area in the 2008/09 season Species krill Area various Season 2008/09 Gear various The ... has given specific exemptions, and only to the extent of those exemptions. 2. Fishing in any ... -dependent predators. 3. In order to give effect to paragraph 2 above: (i) the precise geographic ...
Conservation Measure : 51-04 (2008)
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The effects of CEMP monitoring procedures on Adelie penguin colonies
caused no significant increase in foraging trip durations nor any detectable effect on water turnover ... band and tag loss. There was a reduction in return rates of birds banded for more than one season, but ... during the incubation period or for several consecutive trips during chick rearing resulted in increased ... foraging trip durations and reduced breeding success. Attachment for a single foraging trip post-hatching ...
Meeting Document : WG-CEMP-93/19 : Auteur(s): J. Clarke, K. Kerry (Australia)
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e-sc-xxviii-a9.pdf
... . These reports indicated that lost gear results in ghost fishing; 515 (ii) consumption of caught ... first sampled segment if data collection is started in middle of a haul). (vii) If Conservation ... VESSELS AND GEARS USED IN THE CAMLR CONVENTION AREA .......................................... 514 ... PRIORITIES ACROSS CCAMLR FISHERIES ................ 517 Methods of estimating green-weight removals in
application/pdf attached to:TASO-09Meeting Report : TASO-09
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Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia
3.8% and sperm whales on 17.7% of lines. Killer whales appear in pod sizes normally of 4 to 10 animals ... toothfish, usually depressing CPUE by about 50%. Sperm whales occur in smaller pod sizes, normally between 1 ... whales have been more frequently encountered in recent years, occurring in larger pod sizes, whereas ... the season in August. Killer whale interactions appear to be more consistent with no obvious pattern ... the cetaceans (by relocating the vessel) and replacing the lost catch. In addition, fishery managers ... . Estimates of food consumption by marine mammals in the Eastern Bering Sea. US Dep. Commer., NOAA Tech ... ), although the pod size appears to be lower in the middle of the fishing sea- son (Figure 1). These ... 17.7% of lines. Killer whales appear in pod sizes normally of 4 to 10 animals, and often appear to ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 163–178 : Auteur(s): Moir Clark, J. and D.J. Agnew