Search results
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Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of tag-detection rates
(2013): 73–80 73 QuantIfyIng vessel performance In the ccamlr taggIng program: spatIally ... of the case compared with the control. Aggregating the data over all fishing events pro- vides ... recaptures scanned scanned index recaptures = ×∑ ∑ (1) Approximate 90% confidence intervals were ... 2010 2011 D is ta nc e (k m ) 120 80 40 0 Figure 1: Distribution of distances ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 73–80 : Author(s): Mormede, S. and A. Dunn
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Remarks on the natural mortality of Dissostichus eleginoides in Subarea 48.3
. Documento WG-FSA-92/30. CCAMLR, Hobart, Australia. BEVERTON, R.J.H. and S.J. HOLT, 1956. A review ... . Biology and Status of exploited Antartic Fish Stock: A Review. BIOMASS Scientific Series 6: VID-143 pp ... . Soc., 90 (2): 181-189. SC-CAMLR. 1990. Report of the Working Group on Fish Stock Assessment ... . In: Report of the Ninth Meeting of the Scientific Committee (SC-CAMLR-IX), Annex 5. CCAMLR, Hobart ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 21–30 : Author(s): Moreno, C.A. and P.S. Rubilar
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Midwater trawl catchability as an aspect of a quantitative assessment of krill biomass conducted using a trawl census survey
sur la zone pro spec tee et egalement parce que les estimations ainsi obtenues etaient caracterisees ... include fast submersion and ease of lowering and raising, which saves time during trawl stations ... selecting trawl design (Zimarev, Kasatkina and Frolov, 1990). As mentioned above, census surveys should ... . Effectiveness of RMT-8 System for Sampling Krill Swarms. Polar Biology, No. 6 : 83-90. KADILNIKOV,Yu.B. 1985 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 257–272 : Author(s): Kasatkina, S.M.
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Results of fish stock assessment survey, South Georgia, December 1987 - January 1988
is required of fisheries directed toward N. rossii and Dissostichus eleginoides and 80 mm of fisheries ... Siedlecki using a P32/36 otter trawl equipped with 80 mm mesh and 43 - 52 mm mesh liner (Crawford 1988 ... the 1987/88 survey Ps. georgianus occurred in 80% of the tows around South Georgia and did not occur ... to the difference in sampling gear used (80 mm mesh in 1986/87 at Shag Rocks). The population as of 1987/88 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 19-52 : Author(s): McKenna, Jr., J.E. and S.B. Saila
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Line weights of constant mass (and sink rates) for Spanish system Patagonian toothfish longline vessels
of vessels to meet the line-weighting provisions of Conservation Measure 25-02 and the capacity ... / connecting lines were spaced 80 m apart on long- lines. Hook-bearing snoods were 2 mm in diam- eter, 0.7 ... of the initial rapid sink rates when gear free-falls in the water column, and the latter pro- vides an estimate ... Steel 8 kg 0.33 ± 0.03 0.80 ± 0.06 0.28 ± 0.02 0.74 ± 0.05 Chilean longline Target depth Elapsed time ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 93–106 : Author(s): Robertson, G., C.A. Moreno, E. Gutiérrez, S.G. Candy, E.F. Melvin and J.P. Seco Pon
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Defining smaller-scale management units to further develop the ecosystem approach in managing large-scale pelagic krill fisheries in Antarctica
. The basic principles for defi ning a unit are most easily explored in terms of the structure of animal ... populations. A group of animals that are continuously distributed throughout a favourable habitat is called ... ., 2000 for review). The predator unit is constrained by the spatial location and extent ... to meet the objectives of CCAMLR. The potential for localised effects on predators of harvested species ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 117–131 : Author(s): Constable, A.J. and S. Nicol
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Changes in biomass of eight species of finfish around the South Orkney Islands (Subarea 48.2) from three bottom trawl surveys
the South Orkney Islands (Subarea 48.2) suffered substantial declines from split-year 1977/78 to 1989/90 ... declines from split-year 1977/78 to 1989/90. The biomass of several species of finfish has been monitored ... (Subarea 48.2) suffered substantial declines from split-year 1977/78 to 1989/90. The biomass of several ... une baisse importante entre les annhes australes 1977/78 et 1989/90. La biomasse de plusieurs espPces ... emergentes de 1977/78 y 1989/90. El seguimiento mas reciente de la biomasa de varias especies de peces ha ... chain (Subarea 48.2) was conducted from 1977/78 to 1989/90. The main species caught in this region ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 53–74 : Author(s): Jones, C.D., K.-H. Kock and E. Balguerías
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Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longlines
and by-catch species are also reported for each line along with date and time, hook count, position and depth ... of depre- dated Patagonian toothfish out of the total amount of captured fish in each cell cg and cd ... /thousand hooks). Among all cells, 14 cells cg could be used for comparison of the pro- portion ... 14 0.89 0.90 Nloss 13 338 11 571 Depredation rate 56% 52% l Cd , Cg 19 19 0.97 0.96 Nloss 32 991 28 ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 1–14 : Author(s): Gasco, N., P. Tixier, G. Duhamel and C. Guinet
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Location and intensity of the Soviet krill fishery in the Elephant Island area (South Shetland Islands), 1988/89
pequefia parte de las zonas de alimentaci6n de los animales kri16grafos. Basado en esto, y tomando en ... vessels (Komarevtsev, 1989) and vessels' log books (where available). The following data were extracted ... from this information and stored as a computer database: • date, time and haul duration ... . At present the database consists of information on 1 200 hauls. This constitutes some 70 to 90% of the total ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 305–335 : Author(s): Sushin, V.A. and A.S. Myskov
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Maximum entropy reconstructions of krill distribution and estimates of krill density from acoustic surveys at South Georgia, 1996–2000
survey boxes (dimensions 80 km × 100 km) north of South Georgia. The reconstructions were generated from ... 80 km transects in each box, providing about 1 600 density estimates per box. The MaxEnt technique ... of mean krill density within two survey boxes (dimensions 80 km × 100 km) north of South Georgia ... intervals along each of the ten 80 km transects in each box, providing about 1 600 density estimates per box ... of krill distribution and estimates of mean krill density within two survey boxes (dimensions 80 km × 100 ... been determined at approximately 0.5 km intervals along each of the ten 80 km transects in each box ... (dimensions : 80 km × 100 km) au nord de la Géorgie du Sud. Les reconstructions sont effectuées à partir de ... d’environ 0,5 km le long de chacune des dix radiales de 80 km de chaque rectangle qui, chacun, fournissait ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 91–100 : Author(s): Wafy, M.H., A.S. Brierley, S.F. Gull and J.L. Watkins