Résultats de la recherche

1. A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia

   substantial differences, due in part to bias arising from a large number of krill in just one of the station ... successful recruitment year due to krill spawned in 1994/95. File:  06watkins.pdf ... used four year classes with the mean size of l + krill occurring between 24 and 30 mm (Table 3 ... the maximum permitted size (30 mm). Therefore all analyses were rerun using five year classes with a ... a good separation between the l + and 2+ krill sizes in any one year (with the exception of 1997 ... two year classes and seem unlikely to represent a population composed of all year classes. In two ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Auteur(s): Watkins, J.L

2. Movement and growth of tagged Dissostichus eleginoides around South Georgia and Shag Rocks (Subarea 48.3)

   experimental pot fishing in 2000 and 2001, and have been at liberty from one to two years. Four fish were ... at 42°S after about one year at liberty from some opportunistic tagging carried out on a toothfish ... tagged and recaptured from the same longline vessel in 2002 after up to two months at liberty. The fish ... released during experimental pot fi shing in 2000 and 2001, and have been at liberty from one to two years ... seas area on the Patagonian Shelf at 42°S after about one year at liberty from some opportunistic ... increments. Pot Fishing Experimental pot fi shing was undertaken in 2000 and 2001 by one Uruguayan and two ... and one deepwater haul (500 m) that caught larger toothfi sh (60–80 cm) for tagging. During the fi ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 101–111 : Auteur(s): Marlow, T.R., D.J. Agnew, M.G. Purves and I. Everson

3. Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of tag-detection rates

   calculation by using CCAMLR Science, Vol. 20 (2013): 73–80 73 QuantIfyIng vessel performance In the ccamlr ... for Subareas 88.1 and 88.2 by vessel for a space window of 20 km and time window of one season ... years 2000–01 to 2010–11. Document WG-FSA-11/46. CCAMLR, Hobart, Australia: 32 pp. Year of release ... between sea- sons. Note that the fishing season in Subareas 88.1 and 88.2 starts on 1 December each year ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 73–80 : Auteur(s): Mormede, S. and A. Dunn

4. Mitigation of seabird captures during hauling in CCAMLR longline fisheries

   suggest that there are two key aspects of effective BEDs, firstly that they provide a deterrent to ... these two key functional characteristics into the specification of a BED to be deployed by longline ... / Description:  In recent years there has been an increased focus on reducing seabird captures that occur during ... streamers) This consists of two booms joined by rope, one forward and one aft of the hauling point (Figure ... hauling bay. Data collected by scientific observers since 2003 suggest that there are two key aspects of ... the hauling bay. Based on this analysis, CCAMLR incorporated these two key functional characteristics ... operations in Divisions 58.5.2 and 58.4.2. During that year, although there was zero mortality recorded dur ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 155–162 : Auteur(s): Reid, E., B. Sullivan and J. Clark

5. Assessing the power to detect systematic change in Adélie penguin foraging trip duration

   years of post-impact monitoring to detect systematic change with high power unless one were willing to ... constructed and fitted to data collected at Béchervaise Island over a 12-year period when only natural ... or trips sampled diminished rapidly when sample sizes were greater than 30 penguins and three trips ... scales of days to weeks, because of the high level of natural between-year variation, it would take many ... number of pre-impact years. If the minimum percentage increase from one year to the next that is ... ), and (iii) the effect size is reached after 30 years (0.75% increase per year; trend change), to ... . 208 gradual trending increase of 0.75% per year over 30 years (i.e. 25% increase after 30 years) is ... number of impact (step, ramp and trend increases of 25%) and monitoring (1–10, 15, 20, 25 and 30 years ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 201–215 : Auteur(s): Southwell, C., J. Clarke and L.M. Emmerson

6. Refinements to the strategy for managing depleted fish stocks based on CCAMLR objectives

   fish stocks to recover to levels near those giving greatest net annual increment within two to three ... that applying a policy of F 0.1 will not always lead to stock recovery in two to three decades, and ... studies for defining the terms 'depleted' and 'target levels for recovery' are briefly ... been put into effect the target years for recovery become fixed at 20 and 30 years after the procedure ... terms). SIR CV Current PL•20 > 0.95 PONAI.20 = 0.5 PGNAI.30~0.95 Stock at Stock 30 years Lower ... 20 ou 30 annees it venir. Ces mortalites par peche sont fondees sur des descriptions probabilistes ... conduit pas forcement it un repeuplement du stock en 20 ou 30 ans, et que, par consequent, les stocks ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 467–475 : Auteur(s): de la Mare, W.K. and A. Constable

7. Biomass, abundance and distribution of fish in the Kerguelen Islands EEZ (CCAMLR Statistical Division 58.5.1)

   , their biomass during the period between the two surveys. In addition to the commercial species ... from 6 September to 9 October 2006 (with two stations on 19 and 20 October 2006) in the whole area of ... catches comprised 63 fish species (two sharks, three skates, 28 near-bottom and 30 mid- water teleosts ... one or two stations only (or in few stations with very high density but in a limited area), it is ... 10.21 0 10 000 20 000 30 000 40 000 50 000 To nn es TOP ANI NOS NOR BEA BYR MCC LIC Species ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 1–32 : Auteur(s): Duhamel, G. and M. Hautecoeur

8. Brief report of the joint Soviet-Australian expedition of the USSR FRV Professor Mesyatsev to the Australian fishing zone around the territory of Heard and McDonald Islands, May-August, 1987

   in size with depth was detected. Immature, never spawned fish prevailed (females 80%, males 90 ... 1987. Research within the Australian waters was carried out during two periods : the first from 10 ... scientists, and Australia, by one observer. The research program to be conducted in Australian waters was ... conducted. - 80 - RESULTS The main results of the expedition are briefly reported below, taking ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 75-103 : Auteur(s): Gherasimchook, V.V., V.N. Brodin, A.V. Kljausov, I.B. Russelo, P.V. Tishkov and N.B. Zaremba

9. Selectivity of commercial and research trawls in relation to krill

   more large krill (35-58 mm) than catches of the research trawl (30-54 mm). The maximum difference in ... research trawl. The two types of trawl have different catchability characteristics: the research trawl is ... one which needs to be investigated. During recent years one of the main methods of estimating ... of the IKMT trawl. Location 60°44'O"S 55"21f3"W 60°44'O"S 55"2018"W 60°46'2"S 55"2116"W ... large krill (35-58 mm) than catches of the research trawl (30-54 mm). The maximum difference in mean ... research trawl. The two types of trawl have different catchability characteristics: the research trawl is ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 161–169 : Auteur(s): Kasatkina, S.M

10. A proposed management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity

    resource. The MP uses two data sources: the recent trend in longline CPUE and the mean length of the ... 20-year projec- tion period is zero under all OMs except for the Pessimistic one for which it is ... for current abundance, and one that reflected a status intermediate between these two extremes. The ... future projections over a 20-year period, and in particular the following four statistics which were ... Bsp over the 20-year pro- jection period falling below 50% of Ksp is zero for the Optimistic and the ...

    Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 33–69 : Auteur(s): Brandão, A. and D.S. Butterworth

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