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Towards an initial operational management procedure for the krill fishery in Subareas 48.1, 48.2 and 48.3
Department of Applied Mathematics, University of Cape Town, Rondebosch 7700, South Africa 189 190 II ... acknowledged. Jane De Decker (University of Cape Town) kindly prepared the Figures. GLOSSARY This glossary ... of such symbols may be found in the Appendix itself. . y CPUE CPUE(y) CPUEref Cy [or C(y)] B 200 ... . The standard deviation of the kernel was set at 0.04 throughout, which was found necessary to produce ... headings. Assessment of resource status is provided by the CPUE ‘Composite Index’ proposed by the Workshop ... . Thereafter TACs may increase by C r % per annum. However, this increase may be suspended or reversed in any ... by others for alternative forms and parameter values (or their probable ranges) for the krill ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 189–219 : Author(s): Butterworth, D.S.
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The foraging range of Adélie penguins – implications for CEMP and interactions with the krill fishery
R. Thomson Department of Zoology, University of Cape Town Rondeboscl~ 7700, South Africa Abstract ... Adélie penguins, determined by satellite tracking, at seven widely-spaced breeding colonies along the ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 75–87 : Author(s): Kerry, K.R., J.R. Clarke, S. Eberhard, H. Gardner, R.M. Lawless, S. Corsolini, S. Focardi, E. Franchi, D. Rodary and R. Thomson
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Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by acoustic surveys
species, Electrona carlsbergi, were found only in some limited areas. The bulk of the surveyed biomass ... of myctophids was found to be within the Antarctic Convergence area. File: 25-Filin-et-al.pdf ... . Dense concentrations consisting predominantly of one myctophid species, Electrona carlsbergi, were found ... only in some limited areas. The bulk of the surveyed biomass of myctophids was found to be within ... carlsbergi, were found only in some limited areas. The bulk of the surveyed biomass of myctophids was found ... ). 419 3. RESULTS Concentrations of myctophids in the area surveyed were found in the Antarctic ... or spots (isolated schools) with a height of up to 30 m (Figures 1 and 2). They were chiefly distributed ... and medusas were also found. In the first ten days of February 1988 an echometric survey for myctophids ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 417–431 : Author(s): Filin, A.A., K.V. Gorchinsky and V.M. Kiseleva
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Analysis of results from demersal fish surveys at South Georgia, undertaken by the United Kingdom and the USSR, January and February 1990
were considered in the analysis. No ideal method was found for incorporating the large hauls ... was found for incorporating the large hauls into the analysis. ... hauls were considered in the analysis. No ideal method was found for incorporating the large hauls ... surveys, it had been the experience of both ships that on arrival at these positions the ground was found ... caught larger specimens there. Isolated large individuals were found around South Georgia on the Hill ... and Chaenocephalus aceratus were found to be widespread over the shelf on South Georgia. Few large catches were ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 223–254 : Author(s): (Report of a Joint UK/USSR Workshop, 23 to 27 July 1990)
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Sexing of adult Adélie penguins by discriminant analysis of morphometric measurements
shift). It was found that the combination of flipper breadth, bill depth and length of the middle toe ... ). It was found that the combination of flipper breadth, bill depth and length of the middle toe gave the most ... incubation shift). It was found that the combination of flipper breadth, bill depth and length of the middle ... sexes was also found in bill size (Ainley et al., 1983). The techniques listed above are very useful ... . BD (bill depth) was found to be the most significant discriminant variable followed by FB (flipper ... as it was found in other pe~guins (Stonehouse, 1971; Warham, 1975 and Scolaro, 1987). ACKNOWLEOOEMENTS We ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 543–549 : Author(s): Scolaro, J.A., Z.B. Stanganelli, H. Gallelli and D.F. Vergani
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By-catch of fish in longline catches off the Kerguelen Islands (Division 58.5.1) during the 1995/96 season
and B. irrasa and the morid Antimora rostrata were dominant. The others were mainly shelf-dwelling species found ... rostrata were dominant. The others were mainly shelf-dwelling species found at the limit ... . The others were mainly shelf-dwelling species found at the limit of their bathymetric range. An abundance ... ). The by-catch of the large sharks L. nasus and S . micvocephalus, commonly found in the trawl fishery ... in the taxonomic status, are both found in the Kerguelen and South Georgia areas. The absence of crab by-catches ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 175–193 : Author(s): Duhamel, G., P. Pruvost and D. Capdeville
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Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined with various codends
. It was found that the selectivity properties of twine codends are unsatisfactory in the case of Antarctic ... tape codends were much better. It was found that an optimum mesh size of this codend for selection ... -layer tape codends with a mesh size of 60 and 100 mm were determined. It was found that the selectivity ... . It was found that an optimum mesh size of this codend for selection of Antarctic icefish and bumphead ... -layer tape codends with a mesh size of 60 and 100 mm were determined. It was found ... were much better. It was found that an optimum mesh size of this codend for selection of Antarctic ... nnaBY'IHX phl63aBOAax, a TaKlKe KYTKH, CTpYKTypa KOTOPhlX HanOMHHaeT neHTO'IHhle. - 4 - PRELIMINARY ... Spiny icefish was found in greater numbers only on the South Shetland fishing grounds. ouring ...
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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Preliminary study on nesting Adélie penguins disturbance by unmanned aerial vehicles
the observation periods were compared. No differences were found between the control group and overflights ... . No differences were found between the control group and overflights by electric UAVs. During the overflight ... were compared. No differences were found between the control group and overflights by electric UAVs ...
Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 1–16 : Author(s): Korczak-Abshire, M., A. Kidawa, A. Zmarz, R. Storvold, S.R. Karlsen, M. Rodzewicz, K. Chwedorzewska and A. Znój
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By-catch, growth and feeding of Antarctic juvenile fish taken in krill (Euphausia superba Dana) fisheries in the South Georgia area, in 1992
(with an accuracy of ~0.01 g). The main components found in the fish stomachs were measured (euphausiids: from ... . The difference may be associated with higher abundances of juvenile fish found off the LONGITUDE ... fish in krill hauls above the shelf was considerably higher and specimens were found in 45.5% of all ... hauls. In 1981, Everson et al. (1991) found juvenile fish in 35.0% of all catches in the same area ... Paper Title: By-catch, growth and feeding of Antarctic juvenile fish taken in krill (Euphausia ... an investigation of juvenile Antarctic fish caught during krill fishing by the FV Grigory Kovtun in ... the area around South Georgia from May to July 1992. Two species were predominant in the by-catches ... per day. In May to June, N. larseni juveniles were represented by fingerlings (mean length of 42.4 to ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 129–142 : Author(s): Pakhomov, E.A. and S.A. Pankratov
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The choice of procedure for deciding when to close fisheries regulated by CCAMLR: a simulation model
1. As a result of these factors, catches were greater than the T AC in 1990 by 1 % and the method was found ... ) is similar but slightly lower than that found for the catches of Champsoeephalus gunnari reported by 5-day ... was taken C from this find total number of periods (real) at TAC, and then days C if limit was found, iend ... Paper Title: The choice of procedure for deciding when to close fisheries regulated by CCAMLR: a ... deciding the closure date for fisheries monitored by the Secretariat of CCAMLR, have been difficult to ... implement because of the variation in catch rates shown by the fisheries. Non-fluctuating random and ... is received by the Secretariat. The probability of large over-shoots of the TAC is reduced if ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 81–97 : Author(s): Agnew, D.J.