Resultados de la búsqueda
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Options for allocating the precautionary catch limit of krill among small-scale management units in the Scotia Sea
of 4.0 million tonnes was adopted by CCAMLR for FAO Statistical Area 48 (CCAMLR, 2000) (for a ... the behaviour of krill fi shing vessels (Constable and Nicol, 2002). This approach was endorsed by ... were endorsed by the Scientifi c Committee (SC-CAMLR, 2002) and adopted by the Commission, which then ... that krill catches be reported at a scale of 10 by 10 n mile squares by 10-day periods at the end of ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 81–97 : Autor(es): Hewitt, R.P., G. Watters, P.N. Trathan, J.P. Croxall, M.E. Goebel, D. Ramm, K. Reid, W.Z. Trivelpiece and J.L. Watkins
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Spawning locations of mackerel icefish at South Georgia
months following spawning, no C. gt~lzrznri eggs were found in any samples in the study reported by ... ~ibition on fishing during what is assumed to be the spawning season. These provisions were considered by ... . Olsen (1955), citing information in papers by Liinnberg (1905), Norman (1938) and Nybelin (1947 ... place close inshore or in the fjords. Added weight was given to these conclusions by Kock (1981), who ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 107–118 : Autor(es): Everson, I., A.W. North, A. Paul, R. Cooper, N.C. McWilliam and K.-H. Kock
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Acoustic estimates of krill biomass in the Elephant Island area: 1981–1993
92093, USA (Supported by the Hertz Foundation) Abstract Acoustic estimates of krill biomass in the ... biomass estimates could be useful. This paper presents such a table, augmented by 1993 survey results ... , for consideration by the Working Group at its 1993 meeting. DATA SOURCES Macaulay et al. (1984 ... conducted by Macaulay in the austral summers of 1981, 1984, 1987,1988 and 1989, when normalised to a ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 1–5 : Autor(es): Hewitt, R.P. and D.A. Demer
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An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island
separately. Precautionary catch limits calculated using the Generalised Yield Model (GYM) are found to be 180 ... Icefish off Heard Island found numerically by solving the following fisheries differential equations ... August 1997. A precautionary catch limit is calculated by applying the generalised yield model (GYM ... methods as for recent assessments of Patagonian toothfish (Dissosticht~s eleginoides) by WG-FSA (SC ... the locality known as Gunnari Ridge; and (ii) Shell Bank, which is separated from the plateau by ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 79–101 : Autor(es): de la Mare, W.K., R. Williams and A.J. Constable
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The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model
(SSMUs) proposed by Hewitt et al. (2004) (Figure 1). During its development, this model was variously ... and 3 matrices). In the 15 SSMU–four predator configuration developed by Watters et al. (2013), it ... uncertainties about ecosystem opera- tion that were identified by CCAMLR scientific working groups (SC-CAMLR ... correspond to the goals of ecosystem-based management as defined by McLeod and Leslie (2009): ecosystem ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 97–118 : Autor(es): Hill, S.L. and J. Matthews
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On reproduction of Electrona carlsbergi (Tåning)
were found to be in the initial yolk accumulation phase (maturity stage Ill). By mid-February the ... been inferred by V.N. Efremenko (Lisovenko and Efremenko, 1983) that the reproductive area of the ... carried out and materials collected during surveys by the RV Artemida in December-February 1987-1988 and ... : treatment with alcohol, gradually increasing its concentration, followed by treatment with xylene and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 397–409 : Autor(es): Mazhirina, G.P.
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Low genetic diversity and temporal stability in the Antarctic toothfish (Dissostichus mawsoni) from near-continental seas of Antarctica
is restricted to the Convention Area man- aged by CCAMLR. The fishery for D. mawsoni started in the ... shelf area. The life history of D. mawsoni has been exten- sively studied by Soviet (Andryashev, 1979 ... , 1986; Yukhov, 1982) and, more recently, by Russian ichthyologists (Shust, 1998; Prutko, 2004; Shust ... by assessing a subset of the most informative SNP loci from Kuhn and Gaffney (2008), using material ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 1–9 : Autor(es): Mugue, N.S., A.F. Petrov, D.A. Zelenina, I.I. Gordeev and A.A. Sergeev
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Survey design to estimate krill abundance during FIBEX
. 3. The depth, size and density of swarms should be estimated either by processing of digitised ... result being a stratified random sample of transects analysable by standard statistical methods as ... recommended, for example, by Cochran (1977). For a given subarea (stratum) the direction of transects was ... being determined by the limit of the krill population. Since this limit had to be defined during the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 253–263 : Autor(es): Everson, I., I. Hampton and G.M. Jolly
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Comparative feeding ecology of Patagonian toothfish (Dissostichus eleginoides) in the southwestern Atlantic
). It was also found that the diet of D. eleginoides varied in relation to its size and water depth in ... full stomachs (Tables 3, 4 and 5). A similar low percentage of full stomachs (11%) had been found by ... been reported by Otero et al. (1982) during spring to the east of Isla de los Estados (55"S, 63"W ... commercial status of this species, from a non-target species taken by Argentinian 'surimi' factory ships to ... from 112 to 650 m during three cruises conducted by RV Capithn Oca Balda, Instituto Nacional de ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 105–124 : Autor(es): García de la Rosa, S.B., F. Sánchez and D. Figueroa
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Assessment and tag program adaption methods for exploratory fisheries in the CAMLR Convention Area: an example application for Division 58.4.3a
in the case of by-catch species (Agnew et al., 2006) and for new and exploratory fisheries, then it ... could be used in the new/exploratory/by-catch fishery context should be able to deal with both tagging ... Subarea 48.3 is then compared to the precision in the abundance predicted by the integrated stock ... dynamics of the biomass, B, are given by: 1 1 1 m L IUU y y y y y yB B rB B C K C K . (1) Here, y ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 101–113 : Autor(es): Hillary, R.M