Résultats de la recherche
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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
for here by 'pretending' that all these krill are lost to natural mortality on the verge of their ... of the initial deterministic age-stmcture has been lost. To avoid any possible confounding of ... / l2 to 5/12), while the pre-exploitation biomass survey is assumed to take place in the middle of ... middle of the growth season their mass-at-age (E,) is thus: For model 1, the spawning biomass of krill ...
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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Scientific Abstracts 2001
that in the eastern box (80.4 g m-2). Analysis of data for the mid- season western survey box ... -2 that was intermediate between values for the eastern and western areas. The size structure of ... shelf. Foraging trip characteristics differed between males and females during chick rearing ... eastern portion of the study area (174 to 130°W), and virtually no correlations to the western half ...
Document : Site Section: Publications
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WG-FSA-08/60
downlines Dragging: The used of a specially weighted line and grapnel to recover lost gear. That is ... replacing or reshaping lost and bent hooks. Dealing with tangles, replacing worn backbone and repairing or ... to retrieve lost gear there are environmental implications. New Zealand vessels working in the Ross ... scientific observer: (i) set a minimum of two longlines with a minimum of four TDRs on the middle one ...
Document : Site Section: Publications
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Krill distribution in the western Atlantic sector of the Southern Ocean during 1983/84, 1984/85 and 1987/88 based on the results of Soviet mesoscale surveys conducted using an Isaacs-Kidd midwater trawl
area stretching from the Antarctic Peninsula to the eastern part of the South Orkneys area. The ... eastern part of the Scotia Sea may cause it to be absent from the South Georgia region regardless of ... the area stretching from the Antarctic Peninsula to the eastern part of the South Orkneys area. The ... krill in the eastern part of the Scotia Sea may cause it to be absent from the South Georgia region ... Antarctic Peninsula to South Georgia, including Bransfield Strait, South Orkney Islands and the eastern ... meridional sections, located to the north of the island, then sailed to the eastern part of the Scotia Sea ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 59–70 : Auteur(s): Sushin, V.A. and K.E. Shulgovsky
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Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined with various codends
was the badly chosen mesh size, which had lost selectivity ability for this species, and the double ... ) ~ 8,5 L)4-- Top !Lower Inset /n the lost segment of beLL!} d I ~ Figure 4 -.!EP-sr(f e Lt'n ... -meshed Inset In lower part Of codend E - 5 floats
Lost segment of ... liner was placed on the upper part of the codend, reaching down to the middle of the codend side walls ...
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
that only on the eastern shelf were fi sh of this group caught near the coast at depths of less than ... m. During May, only pre-spawning females of 30–39 cm were caught in the northern and eastern ... northern and eastern areas of the shelf at depths of 160 to 170 m, the proportion of spawning females was ... about 10%. In the southern and eastern areas, only individual fi sh were found with mature gonads ...
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)
or division. 4. The total green weight of krill caught and lost shall be reported. 5. Each vessel ... than one month after the conclusion of each fishing trip. 4. Data collected from research net hauls ... one month after the conclusion of each fishing trip. 7. Data collected by Contracting Parties ...
Conservation Measure : 51-04 (2008)
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Peak mortality of krill, fished with midwater trawls and feasible criteria of krill trawls ecological safety
died during fishery. The equations are presented to estimate the gross removal of an object by the ...
Meeting Document : WG-KRILL-93/34 : Auteur(s): Yu. V. Kadilnikov (Russia)
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Hook loss in CCAMLR exploratory fisheries
Abstract: The development of methods to estimate unaccounted fishing mortality from lost fishing ... lines requires an estimate of the number of lost hooks that are attached to sections of line. In 2011 ... hook loss data was provided by 21 of the 34 vessel/fishery reports with an estimated 317920 hooks lost ... estimated total of 313548 hooks lost attached to sections of line. In exploratory fisheries, particularly ...
Meeting Document : WG-FSA-12/65 : Auteur(s): Secretariat
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Environment–krill relations in the South Georgia marine ecosystem
result of large-scale changes in the physical environment. Mackintosh (1972) drew attention to the ... ). Mackintosh (1972) deve loped this theme and highlighted a correspondence between water temperature, sea ... eastern area of the Scotia Sea around South Georgia, it has been suggested that krill abundance depends ... eastern South Georgia shelf (square: 53.75-52.25"s; 36.5-35.5OW): 1 - mean sea-water temperature for ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 13–30 : Auteur(s): Fedoulov, P.P., E. Murphy and K.E. Shulgovsky