Search results
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By-catch of fishes captured by the krill fishing vessel Chiyo Maru No. 2 in Statistical Area 58 (January to March 1995)
in the Chiyo Maru No. 2's by-catch was in the middle of the range of previously-reported species numbers ... within krill swarms east of South Georgia. Acta Ichthyologica et Piscatoria, 13: 3-11. Slosarczyk ... Paper Title: By-catch of fishes captured by the krill fishing vessel Chiyo Maru No. 2 in ... of scientific observations conducted aboard the Japanese krill fishing vessel Chiyo Maru No. 2 ... presents a brief re-analysis of the by-catch data collected on board the Chiyo Maru No. 2; means and ... variances are calculated from the delta distribution. In numbers, an average of about 14 fish were caught ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 111–123 : Author(s): Watters, G
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Prey monitoring surveys: a discussion of the characteristics necessary in prey surveys
of the parameters (foraging trip - 379 - duration, chick fledging weight and chick diet) identify a restricted ... although from a knowledge of swimming speed, activity budgets and foraging trip duration a reasonable ... shift length population Size Demography Foraging trip duration Breeding success Chick ... Paper Title: Prey monitoring surveys: a discussion of the characteristics necessary in prey ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 377-391 : Author(s): Everson, I.
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Revised estimates of seabed areas within the 500 m isobath of the South Orkney Islands (subarea 48.2) and consequences for standing stock biomass estimates of nine species of finfish
(SC-CAMLR-SSPI4). CCAMLR, ship depth soundings. Science, 277: 1956-1962. ~ h b a r t , Australia ... Paper Title: Revised estimates of seabed areas within the 500 m isobath of the South Orkney ... Islands (subarea 48.2) and consequences for standing stock biomass estimates of nine species of finfish ... Abstract / Description: A revised bathymetric map of the South Orkney Islands (Subarea 48.2) was generated ... , areas of seabed within the 500 m isobath (i.e. 0-500 m) were computed for 50 m depth intervals. Areas ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 197–204 : Author(s): C.D. Jones
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Composition and characteristics of ichthyofauna in pelagic waters of South Georgia (Subarea 48.3)
, in the middle and the 15-metre near-bottom layer. Trawls were made at each depth at a speed of 3 to 3.5 knots ... 3). Gizhiga Cruise 30 07.07- 08.08.87 6 0 60 70 120 100 160 the south, 105 mm to the east and 110 ... ). Parachaenichthys georgianus This species was caught mainly in the north, west and east of the South Georgia ... Paper Title: Composition and characteristics of ichthyofauna in pelagic waters of South Georgia ... (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 ...
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
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Trends in relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at Potter Cove, South Shetland Islands, after commercial fishing in the area
are grateful to C. Bellisio, M. Favero, A. Thibaud, R. Di Paola and E. Pinola for their cooperation ... of finfish in Antarctica started at the end of the 1960s. The fishery was developed mainly in offshore ... Paper Title: Trends in relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons ... Abstract / Description: Monitoring of demersal fish at inshore sites of the South Shetland Islands has ... continued at Potter Cove from 1991 to 1999, and at Harmony Cove, Nelson Island, in the austral summer of ... 1995/96. Still evident is the decline in trammel-net catches of fjord-dwelling Notothenia rossii and ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 43–52 : Author(s): Barrera-Oro, E.R., E.R. Marschoff and R.J. Casaux
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A study of Patagonian toothfish (Dissostichus eleginoides) post-tagging survivorship in Subarea 48.3
percentage of animals in poor condition died. The Argos Helena also had a rela- tively low survival rate ... 94 Isla Santa Clara 16 100 Viking Bay 12 92 pa rt ia l f or fi sh .c on di tio n 0 5 10 ... l f or fi sh .c on di tio n 0 5 10 fish.condition 1g oo d 2a ve ra ge 3p oo r fish.length.cm ... 1000 1200 1400 1600 -2 -1 0 1 2 3 P ar tia l f or fi sh c on di tio n Fish condition Fish ... Paper Title: A study of Patagonian toothfish (Dissostichus eleginoides) post-tagging survivorship ... survivorship of toothfish following tagging were carried out on eight different vessels fishing in Subarea 48.3 ... , fish with a variety of injuries were selected to see if this affected recovery. In the final analysis ... , 396 animals were included, with an overall survivorship of 90%. Smaller animals and animals in better ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 279–289 : Author(s): Agnew, D.J., J. Moir Clark, P.A. McCarthy, M. Unwin, M. Ward, L. Jones, G. Breedt, S. Du Plessis, J. Van Heerdon and G. Moreno
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Size at sexual maturity of Patagonian toothfish (Dissostichus eleginoides)
, growth and maximum size of Antarctic notothenioid fish - revisited. In: di Prisco, G., E. Pisano ... number of data points which fall in the middle of the curve. (This point was highlighted as a warning ... , there are only sparse data in the middle of the curve for the July period. The results from the PROBITANALYSIS ... Paper Title: Size at sexual maturity of Patagonian toothfish (Dissostichus eleginoides) Abstract ... / Description: Analyses of size at sexual maturity were undertaken on samples of Patagonian toothfish ... proportion, 25 to 43%, of sexually mature fish were not coming into spawning condition. This introduces a ... bias leading to the overestimation L m50 of calculated by conventional methods. Further analysis ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 37–46 : Author(s): Everson, I. and A.W. Murray
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A simple approach for calculating the potential yield of krill from biomass survey results
which is to be used in equation (1) is considered to be made in the middle of the season (Le. mid ... the mass of laiU of age a at the start of the "year" (wa) is given by: (A.3) In the middle ... Paper Title: A simple approach for calculating the potential yield of krill from biomass survey ... for the calculations is that the probability that the krill spawning biomass drops below 20% of its ... median pre-exploitation level over a 20 year period of harvesting should equal 10%. The value of, λ ... depends strongly on the value of M (natural mortality) and σ R (recruitment variability), and also on the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 207–217 : Author(s): Butterworth, D.S., A.E. Punt and M. Basson
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Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined with various codends
, reaching down to the middle of the codend side walls. The codend bottom was deprived of its selective ... properties up to the middle of side walls by placing inside it, the same fine-meshed inset. In this way ... in its middle and final part a typical selectivity curve. It was characterized by a gentle sloping ... and represented the same type of selection. In fact, they constituted the middle and final part of a typical ... Paper Title: Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined ... with various codends Abstract / Description: Selectivity properties of single and doubler-layer twine ... codends (mesh size 120 mm) and single-layer tape codends with a mesh size of 60 and 100 mm were determined ... . It was found that the selectivity properties of twine codends are unsatisfactory in the case of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 1-48 : Author(s): Zaucha, J.
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Scientific observations in CCAMLR fisheries – past, present and future
, position and activity (CCAMLR, 1998, paragraph 8.16); (ii) collect information on fi shing gear loss ... at the end of each fi shing trip and email them to the CCAMLR Secretariat3. This is important because ... / Description: CCAMLR has the primary competency for managing fishing south of the Antarctic Polar Front ... . Despite a relatively long history of scientific research and fisheries, CCAMLR’s fisheries management ... -independent studies are difficult and expensive to conduct. In addition, the size of the Convention Area, its ... standard catch and effort data supplied by vessels, the collection of data by scientifically qualified ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 81–98 : Author(s): Sabourenkov, E.N. and E. Appleyard