Résultats de la recherche
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e-sc-xiii-a4.pdf
... the positions of catches and the local depletion sites. The site originally allocated to the Korean ... fishery. No catches were reported from the fisheries for Champsocephalus gunnari, crabs (Paralomis spp ... Bulgarian (Russia) vessels. The Working Group expressed its regret that there was no participant from ... depletion site, and that this had led to some difficulties on board ship. The Working Group recommended
application/pdf attached to:WG-FSA-94
Meeting Report : WG-FSA-94
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Length-based assessment for mackerel icefish (Champsocephalus gunnari) at South Georgia
Georgia Abstract / Description: The current CCAMLR assessment method for mackerel icefish ... (Champsocephalus gunnari) in Subarea 48.3 employs the CCAMLR mixture analysis program (CMIX) and generalised yield ... the given harvest control rule to set a two-year total allowable catch (TAC). One issue is the ... accurate identification of age cohorts from the survey data. In this paper a length-based approach is ... define numbers-at-age in the population. Assuming a closed population (i.e. with no recruit- ment) the ... which there are P times P) to generate the transition matrix Γ. Note also that no error distribution ... estimated numbers-at-length are assumed to be the total closed population abundance (i.e. there is no ... no systematic differences between results from the proposed length-based method and the current ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 129–137 : Auteur(s): Hillary, R.M., C.T.T. Edwards, R.E. Mitchell and D.J. Agnew
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e-sc-xxvii.pdf
... of metadata to it. However, there are no resources to further develop the user interface of the ... SCIENTIFIC COMMITTEE FOR THE CONSERVATION OF ANTARCTIC MARINE LIVING RESOURCES ... REPORT OF THE TWENTY-SEVENTH MEETING OF THE SCIENTIFIC COMMITTEE HOBART, AUSTRALIA 27–31 OCTOBER ... : www.ccamlr.org Chair of the Scientific Committee November 2008
application/pdf attached to:SC-CAMLR-XXVII
Meeting Report : SC-CAMLR-XXVII
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Marine debris and fishing gear associated with seabirds at sub-Antarctic Marion island, 1996/97 and 1997/98: in relation to longline fishing activity
debris found in association with seabirds at sub-Antarctic Marion Island for the period May 1996 to April ... 1998 is reported. Standardised searches and incidental finds show a large increase between the 1996/97 ... and the 1997/98 field seasons. Fishing gear increased at a rate 10 times higher than 'other' ... found. Prior to this study only three hooks (all from the southern bluefin tuna longline industry) had ... and longline fishing industry. As we collected all debris (i.e. there was no bias in the type of ... association with seabirds at sub-Antarctic Marion Island for the period May 1996 to April 1998 is reported ... . Standardised searches and incidental finds show a large increase between the 1996/97 and the 1997/98 field ... from the southern bluefin tuna longline industry) had been found in association with seabird nests at ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 85–96 : Auteur(s): Nel, D.C. and J.L. Nel
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e-sc-xxv-a5.pdf
... recaptured. The paper reported that there was no recorded movement between SSRUs, and the maximum distance ... REPORTS ANNEX 5 REPORT OF THE WORKING GROUP ON FISH STOCK ASSESSMENT (Hobart, Australia, 9 to ... 20 October 2006) CONTENTS Page OPENING OF THE MEETING ... .............................................................. 267 ORGANISATION OF THE MEETING AND ADOPTION OF THE AGENDA ....... 267 Organisation of the meeting
application/pdf attached to:WG-FSA-06
Meeting Report : WG-FSA-06
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CCAMLR-XVII
CCAMLR-XVII/BG/49 ISOFISH Occasional Report No. 1 Submitted by ASOC CCAMLR-XVII/BG/5 Statement by the ... CCAMLR Observer at the XXIInd ATCM Executive Secretary CCAMLR-XVII/BG/50 ISOFISH Occasional Report No. 3 ... CCAMLR-XVII/BG/7 Beach debris survey – Main Bay, Bird Island, South Georgia 1996/97 Delegation of the ... Full Name: Seventeenth Meeting of the Commission Location: Hobart, Australia Date(s): Monday ...
Meeting
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e-cc-xxxi.pdf
... (ASMA) No. 1, Admiralty Bay, King George Island, South Shetland Archipelago, noting the proposal for a ... conducted 121 hauls) in ASPA No. 153, Eastern Dallmann Bay, and that the management plan for this ASPA does ... Baiyangdian, on the Proposed NCP-IUU Vessel List and that no new vessels were included on the Proposed CP ... . The Commission noted that no other vessels were considered for removal. The Commission approved the
application/pdf attached to:CCAMLR-XXXI
Meeting Report : CCAMLR-XXXI
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Catch per unit effort and proportional recruitment indices from Japanese krill fishery data in Subarea 48.1
. CPUE (catch/towing volume) in the Livingston Island area showed a decreasing trend during the study ... period. The use of different fishing strategies in response to a demand for higher product quality and a ... general decrease in krill density in the study area were considered as possible reasons for this. On the ... other hand, CPUE in the Elephant Island area showed greater interannual variation without any trend ... ), but no significant trend in the Elephant Island area (T = -0.200, n = 11, p = 0.39). DISCUSSION ... no clear trend was observed in the search for krill aggregations before deploying Elephant Island ... . CPUE (catch/towing volume) in the Livingston Island area showed a decreasing trend during the study ... period. The use of different fishing strategies in response to a demand for higher product quality and a ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 47–63 : Auteur(s): Kawaguchi, S., T. Ichii and M. Naganobu
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Calibration of an acoustic echo-integration system in a deep tank, with system gain comparisons over standard sphere material, water temperature and time
outlines the theory and procedures for calibrating an echo integration acoustic system with a standard ... sphere. It presents the results of an extensive calibration of a Simrad EK500 scientific echosounder with ... length (0.1, 0.3 and 1.0 ms), target depth (0.8 to 7.5 m), and time (149 days). The total range in TS ... gain, including the effects of temperature, standard sphere and time, is 2.9 dB. Gain values calibrated ... independent of orientation, and no additional electronic equipment is required (Blue, 1984). Furthermore, the ... be performed with no effect from the water column boundaries so that only spherical waves reflecting ... . Therefore, if no data were collected exactly on axis, the nearest data to the axis were used after being ... parameter alone, can be no better than ±0.5 dB. At greater ranges, the biases are proportionally larger ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 127–144 : Auteur(s): Demer, D.A. and R.P. Hewitt
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Variations in condition indices of mackerel icefish at South Georgia from 1972 to 1997
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 ... the breeding site. The foraging trip and diet parameters integrate over these same scales but in ... fur seal pup weight in 1973, a year when there were no reports of krill scarcity, to that on the ... penguins on the shore of Cumberland Bay, South Georgia, in March 1978. In 1978/79, when penguin breeding ... density. There were no krill density estimates during 1977 and 1978, so we infer that the changes in ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 119–132 : Auteur(s): Everson, I. and K.-H. Kock