Résultats de la recherche
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Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys
/ '-".I i \,\\1 V £20..J ,Jl) /' 500 tr ( '10 ~O ·w '30 llw" , I ~ t;J , G3 -L/ ( If 1 ... western side of the South Shetland Islands north of 63°30'S only, and has not so far exploited the ... its Statistical Bulletin (CCAMLR, 1992 - Figure 25). Krill catches are displayed in map form, with ... 290 data given for each CCAMLR fine-scale square (1 0 longitude by 30' latitude) for each quarter ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 287–303 : Auteur(s): Agnew, D.J.
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Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric characteristic?
,12 = v = J,1 + aa a2 = ba (3) using the same methodology as described in the foregoing section ... ba = k(1l + aa) substituting equation (3) bA = l+kaA substituting equation (4) (5) We can ... is taken as an estimate of (J, and ~ is known. n;;:: 2( a /0)2 {t(X[v] + t2(1_P)[v]}2: see Sokal ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 259–272 : Auteur(s): Agnew, D.J.
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Results of the CCAMLR Antarctic fish otoliths/scales/bones exchange system
) T ~ ~ !!l[!J + + ,.. 2 + 10 2fj 30 48 50 length (crr;) Figure 7: Length versus age plot ... -VI/8G/26 Rev. 1) and 1988 (WG-FSA-88/30). The exchange was terminated before 1 August 1989 despite ... . Checks observed on both structures were validated to form annuli (scales: Sherbich, 1975; Freytag, 1980 ... of Notothenia rossii marmorata Fischer 1885 in the west Antarctic waters. Arch. FischWiss. 30 (1 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 197–226 : Auteur(s): Kock, K.-H.
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Fishing for toothfish using pots: results of trials undertaken around South Georgia, March–May 2000
entry into pots by small crabs. Further pot fishing is planned for the 2000/01 season. This will ... MapTa IIO Mafi 2000 r. C O ~ ~ H H ~ H H O ~ K O ~ O ~ ~ B C T B O IIpOBeJlO 3KCIIepIIMeHTbI IIO ... HAM CBeCTH Ha HCT IIO~OYHYK) CMePTHOCTb IITMIJ. B H ~ c T o X I Q ~ ~ ~ pa60~e OIIPICbIBaIoTCX ... 3KCIIepPIMeHTbI PI PIX pe3ynbTaTbI M O ~ C ~ X Q ~ ~ T C R KOMMepYeCKOe Gy~yqee 3TOTO MeTOAa AnX IIpOMbICJIOB ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 93–105 : Auteur(s): Agnew, D.J., T.M. Daw, G.M. Pilling and M.G. Purves
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The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species
established to assist with such classification (IUCN, 1994). While these may be the last form of protectioi ... 20-30 years, wl~ich is the critical period over which the system should not be irreversibly changed ... be related directly t o the effects o f fishing. These features are currently unavailable i n ... ecosystem approaches t o managing fisheries, which do not weight input data for assessments, such as per ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 37–64 : Auteur(s): Constable, A.J
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Notes on the use of virtual population analysis for stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1990/91 and 1991/92 seasons
would form a considerable proportion of the catch. The observed age distribution from a stock ... standardised form and standardised according to the method described in Section 2.1. The calculation of ... the survey t (July = month 1, August = month 2 etc.), and known catches C in month i, the number of ... fish N of age a on 1 July was approximated to: (t-1M) t 1 (i-1M) N = N • e 12 + ~ C .• e 12 a at ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 49–79 : Auteur(s): Parkes, G.
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Factors that may influence the accuracy of abundance estimates from CCAMLR tag-recapture programs for Dissostichus spp. and best practice for addressing bias
Lincoln-Petersen equation, the simplest form of an abundance estimator using tag-recapture data, was used ... – dirk.welsford@aad.gov.au Abstract The Lincoln-Petersen equation, the simplest form of an abundance estimator ... features in common with the simplest form of an abundance estimator, known as the Lincoln- Petersen ... controlled measures of survival and tag-detection for the CCAMLR tagging program. Document WG-SAM-12/30 ... example, anchoring the standard size of CCAMLR T-bar tags between the pterygiophores at the base of the ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 63–72 : Auteur(s): Welsford, D.C. and P.E. Ziegler
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Natural mortality rate in the mackerel icefish (Champsocephalus gunnari) around South Georgia
following year the information in Frolkina and Dorovskikh (1990) was presented in revised form in Frolkina ... Kochkin (1995). Natural Mortality Rate in Mackerel Icefish around South Georgia In the form used by ... mortalit6 dependant de l'2ge et ?I la p@che commerciale. B A ~ H H O ~ ~ CTaTbe o ~ c ~ K J @ ~ H ) T c ... X AaHHbIe no ~ C T ~ C T B ~ H H O ~ ~ CMepTHOCTLl JIenX~ofi pb16b1 (Champsocephalus gunnari) 3a ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 245–257 : Auteur(s): Everson, I
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Spatial distribution of management measures, Antarctic krill catch and Southern Ocean bioregions: implications for conservation planning
management area does not provide long-term pro- tection equivalent to that of an MPA, or imply any form of ... biore- gion defined on the basis of long-term (up to 30 years) averages of time series (Grant et al ... . 2002. Rigor and Representativeness in Marine Protected Area Design. Coastal Man- agement, 30 (3): 237 ... (Figure 1a). Proposed in original form in FAO (1976); further subdivision proposed in Everson (1977 ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 1–19 : Auteur(s): Grant, S.M., S.L. Hill and P.T. Fretwell
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A stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region incorporating multi-year mark-recapture data
. _______________________________________________________________ 1 The CCAMLR fishing season starts on 1 December and ends on 30 November in the following year ... 2008 to 30 November 2009 would be referred to as 2009. 41 A stock assessment model of D. mawsoni ... north fishery selectivity 10 20 30 40 50 Age Age Age ... Age Age Age 10 20 30 40 50 10 20 ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 39–62 : Auteur(s): Mormede, S., A. Dunn and S.M. Hanchet