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Precautionary measures for a new fishery on Martialia hyadesi (Cephalopoda, Ommastrephidae) in the Scotia Sea: an ecological approach
established. Data from the CCAMLR Convention Area suggest that M. hyadesi may live for two years, but this may ... Convention Area suggest that M. hyadesi may live for two years, but this may vary. In coinmon with other ... increased in recent years (Josupeit, 1995), operators of distant-water fleets in the region have become ... falls between one and two years as this infers that the spawning season would alternate between ... generations. Date of Drift 17/18 June 18/19 June 19/20 June 20/21 June 21 /22 June 22/23 June 23/24 ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 125–139 : Autor(es): Rodhouse, P.G
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Distribution characteristics of krill aggregations in the fishing ground off Coronation Island in the 1989/90 season
/green liver 15 - dark-green/green liver 65 20 40 60 1:30 10 19.12.89 - 7.0I.90r. time ... \~. P . • . • . • 20 30 • • t • , "' ... I' 50 t I· ... ··"· ", • . 0 . 01 . . I ... WG-KRILL-90/20 DISTRIBUTION CHARACTERISTICS OF KRILL ... -east (500 1O'S to 59° 30'S and 43°30'W to 44°W) and south-west (Figure 1). In the daytime, krill was ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 49–73 : Autor(es): Kasatkina, S.M. and V.I. Latogursky
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Refinements to the strategy for managing depleted fish stocks based on CCAMLR objectives
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 : Autor(es): de la Mare, W.K. and A. Constable
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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
abundance estimator, is defined whereby catch limits and tagging rates can be adjusted together to define ... tagging levels that will produce an expected abundance estimate in the following year of a given precision ... given year or years. No dispersion terms were estimated for the recapture event for obvious reasons ... ), not its status relative to 20% of K in the final year of projection. One might then expect that ... defined whereby catch limits and tagging rates can be adjusted together to define tagging levels that ... not both, abundance and reproductive potential (r and K together), likelihood profiles from estab ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 101–113 : Autor(es): Hillary, R.M
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Movement, growth and available abundance to the fishery of Dissostichus eleginoides Smitt, 1898 at Heard Island, derived from tagging experiments
la bl e nu m be rs (m ill io ns ) 1998 1999 2000 2001 Year 0 10 20 30 40 50 Pr ed ic ... te d nu m be rs (m illi on s) 1998 1999 2000 2001 Year 50 40 30 20 10 0 P re di ct ... 00 30 00 40 00 40 00 30 00 30 00 20 00 10 00 50 0 M A R IO N /P . E D W A R D CR O ZE ... 22 10 7 20 4 30 6 Fi sh in g gr ou nd C 23 7 50 51 0 18 7 39 13 9 25 Pl at ea u ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 33–48 : Autor(es): Williams, R., G.N. Tuck, A.J. Constable and T. Lamb
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An overview of Southern Ocean zooplankton data: abundance, biomass, feeding and functional relationships (submitted to the 2008 Joint CCAMLR-IWC Workshop)
, since mesozooplankton typically remove <30% of primary production. This emphasises the dominant role ... for differences in the extent of identification of early larval stages. Likewise, the time of year ... one-half of those above. A change in the view of SO copepods in the last 20 years has followed an ... typically remove <30% of primary production. This emphasises the dominant role of microbial food chains ... several years (Figure 1). Typically, gelatinous or jelly-like organisms that filter or ambush prey tend ... salps in some subregions in some years (Conover and Huntley, 1991; Voronina, 1998; Pakhomov et al ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 171–218 : Autor(es): A. Atkinson, P. Ward, B.P.V. Hunt, E.A. Pakhomov and G.W. Hosie
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A first step towards modelling the krill–predator dynamics of the Antarctic ecosystem
, together with suggested further areas for investigation. Amongst the key inferences of the study are that ... of this species declined substantially over the first 20 years of the fishery, from 1970 to 1990 ... results and the assumptions on which they are based is discussed, together with suggested further areas ... середине 20-го столетия и рассматривается информация об уровнях популяции и изменений, которая появилась ... ). Antarctic blue whales (Balaenoptera musculus) were harvested legally from 1904 for almost 60 years, fin ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 217–277 : Autor(es): Mori, M. and D.S. Butterworth
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A rationale for conservation areas within Antarctic waters
: The application of potential conservation measures listed in Article IX 2 of the Convention requires ... marine living resources’ (Article IX 2 (b)). In order to select meaningful boundaries for such areas ... potential conservation measures listed in Article IX 2 of the Convention requires "the designation of ... " (Article IX 2 (b)). In order to select meaningful boundaries for such areas, first priority has been ... -secteurs selon la repartitiondes populations de res sources marines vivantes de l'Antarctique" (Article ... in earlier years within the sector from 700 W to 160o W. More recently there has been a move within ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 513-535 : Autor(es): Chittleborough, R.G.
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Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?
conservatively estimated subarea biomass in up to 20% of years due to high variability in krill biomass indices ... recent years. This suggests that fishing at the trigger level would be equivalent to a long-term ... 1991, is 0.62 million tonnes year –1, equivalent to ~1% of the regional biomass estimated in 2000. Each ... subarea has also had its own catch limit, between 0.093 and 0.279 million tonnes year –1, since 2009 ... catch limits exceed 9.3% of conservatively estimated subarea biomass in up to 20% of years due to high ... biomass (i.e. the total weight of reproductively mature individuals) after 20 years of fishing should ... for 20 years would reduce the krill stock by 2% (SC-CAMLR, 2011). Clearly, any significantly greater ... such as these. Multi- decadal series (30 to 40 years of data) (Henson et al., 2010) or parallel series ...
Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 31–51 : Autor(es): Hill, S.L., A. Atkinson, C. Darby, S. Fielding, B.A. Krafft, O.R. Godø, G. Skaret, P.N. Trathan and J.L. Watkins
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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 ... large krill (35-58 mm) than catches of the research trawl (30-54 mm). The maximum difference in mean ... mm) que celles du chalut de recherche (30-54 mm). La difference maximale de longueur moyenne dans ... -58 MM). YeM B ynoeax mccneAoBaTenhcKoro Tpana (30-54 MM). M ~ K C H M ~ ~ ~ H O ~ pacxoxAeHBe ... investigacion (30-54 mm). La diferencia maxima entre 10s promedios de las tallas de las capturas de ambas redes ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 161–169 : Autor(es): Kasatkina, S.M