Résultats de la recherche
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Some aspects of the relation between Antarctic krill abundance and CPUE measures in the Japanese krill fishery
Paper Title: Some aspects of the relation between Antarctic krill abundance and CPUE measures in ... limitations on the vessels, and product quality considerations- in particular the increasing tendency to avoid ... catching “green” krill. These factors result in Catch-per-Day and Catch-per-Haul measures being unlikely to ... -swarm density. Search time data may be needed to assess the density of swarms in a concentration, but ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 109–125 : Auteur(s): Butterworth, D.S.
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Hydrological conditions and characteristics of icefish (Channichthyidae) distribution on the South Georgia shelf in 1986/87
) distribution on the South Georgia shelf in 1986/87 Abstract / Description: Some characteristics of spatial and ... temporal variability of the distribution of icefish (Channichthyidae) on the South Georgia shelf in ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 3–14 : Auteur(s): Shnar, V.N. and V.I. Shlibanov
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1989/90 stock status and TAC assessment for Champsocephalus gunnari in Subarea 48.3 (South Georgia)
Paper Title: 1989/90 stock status and TAC assessment for Champsocephalus gunnari in Subarea 48.3 ... gunnari in South Georgia Subarea (48.3) has been made using the biostatistic material for 1982/83 to 1987 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 15–27 : Auteur(s): Frolkina, Zh.A. and P. Gasyukov
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1989/1990 stock status and TAC assessment for Patagonotothen brevicauda guntheri in South Georgia subarea (48.3)
Paper Title: 1989/1990 stock status and TAC assessment for Patagonotothen brevicauda guntheri in ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 101–110 : Auteur(s): Shlibanov, V.I.
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Management and assessment options for the crab fishery around South Georgia
/ Description: A new fishery for the lithodid crab, Paralomis spinosissima, started in Subarea 48.3 in 1992 ... . The fishery is also new to CCAMLR, both in terms of the species and fishing gear. We provide an ... overview of the management options for crab fisheries in general and then consider these options in the ... in addition to the 'size-sex-season' controls. Implementation of both sets of controls ... refuges were raised in a paper presented at a recent Symposium on Marine Harvest Refugia (Dugan and ... together with the requirements of Article I1 of the CCAMLR Convention. The objectives in sub-paragraph 3 ... Article I1 of the CCAMLR Convention. In the final section, we consider the assessment methodologies and ... of Article I1 may be paraphrased as follows: (i) to prevent a decrease in the abundance of the ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 193–202 : Auteur(s): Basson, M. and D.D. Hoggarth
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Chilean krill fishery: analysis of the 1991 season
data and its use in studying small-scale spatial distribution of catches. The results show that krill ... fishing in Subarea 48.1 is particularly intense near CEMP sites. Other ways of using of haul-by-haul data ... fishery from 1987 to 1991. Data is presented by split-years and shown under the calendar year in which ... for the year 1983, only in the Subarea 48.1, comprising from 5% to 100% of the kriU fishery in that ... feeding krill and gravid females are avoided by the fishery. In producing frozen kriH, the whole animal ... Hauls In 1991, fishing took place in the northern shelf of the South Shetlands. The season started 20 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 273–287 : Auteur(s): Marín, V.H., A. Mujica and P. Eberhard
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Archival and satellite-linked data recorders
provides an overview of currently-available data recorders for use in research on marine animals. These ... recorders are deployed on freely swimming animals and gather data on aspects of an animal’'s diving ... behaviour. The records can be recovered in one of two ways: the data recorder must either be recovered ... animal in the tropics. It is not known if such a system can be employed in the Antarctic where sunrise ... seal hauled out on a beach or ice-floe, but makes geolocation of any animal in the water difficult ... of interrupted transmissions is increased. This may make such transmissions from an animal in the ... to perform the function of transmitting archived data when the animal is hauled out in addition to ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 475-493 : Auteur(s): Hill, R.D.
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Antarctic krill and ecosystem management – from Seattle to Siena
(2002 – this volume), with the three papers documenting developments during CCAMLR’s first 20 years of ... approach developed in order to calculate a precautionary catch limit for the krill fishery in various ... to be consistent with the objectives of the CAMLR Convention, particularly its Article II. Emphasis ... stocks in the Southern Ocean as a whole (Kock, 1992). The latter raised serious concerns about the ... a 20-year period (where Y = yield and B0 = unexploited biomass). Because the model is run many ... exploitation, over a 20-year period of harvesting, should be equal to 10%’. This approach required an ... between sea- ice and the performance of the krill fi shery in the forthcoming year offers an intriguing ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 175–212 : Auteur(s): Miller, D.G.M
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Target strengths of Antarctic krill (Euphausia superba)
and 120 kHz in a sheltered bay at South Georgia. The results indicate that the Target Strength values ... over a 42-hour period. In another case, Event number 20, the number increased by two specimens ... kHz TS (dB} at 120 kHz Event Mean no. - no. 1 7 1 9 20 26 28 30 36 37 43 47 50 52 54 ... ). Both echosounder and integrator were housed ashore, in the laboratory, together with other equipment ... echosounder was used in its dual 38 and 120 kHz modes together with UNIVERSAL SONAR transducers, each with ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 265–279 : Auteur(s): Everson, I., D.G. Bone, J.L. Watkins and K.G. Foote
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Status of krill target strength
aggregations of live euphausiids and should not be affected by a frequent cause of bias in single-animal ... on both animal size and transmit frequency, notwithstanding admitted shortcomings. Some recent single ... -animal measurements of target strength for live euphausiids and euphausiid-related species, made under ... effects discussed earlier in this article and differences in animal type), the structure exhibited in the ... should not be affected by a frequent cause of bias in single-animal measurements, namely thresholding ... interference between the echoes from each animal. In order to describe the scattering involving the ... number density were performed at 30 and 20 kHz. Measurements at 30 kHz were performed near Bouvet Island ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 101–126 : Auteur(s): Foote, K.G., D. Chu and T.K. Stanton