Resultados de la búsqueda
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Status of the krill stock around Elephant Island in 1991/92 and 1992/93
austral summers of 1991/92 and 1992/93 are described and compared with information from previous years ... other years appears to be associated with female maturity development and spawning during the early ... appeared to be affected by dense salp concentrations during 1992/93 and 1989/90. File: 02loeb-siegel.pdf ... . The length frequency distributions and maturity stage composition reflected relatively good year class ... . Loeb and Siege1 (Dlink/Dmax) *l00 Variable 1---10---20---30---40---50---60---70---80---90---~00 ST ... . Frequency % 12 "l l0 l6 20 26 30 36 40 46 60 66 80 Total Length (mm) Frequency % 10 16 90 26 SO S6 ... ST-4 3 ST-59 -7 ST-58 -L ST-71 ST-4 4 ST-72 (Dlink/Dmax)*100 Variable 1---10---20---30---40 ... ---50---60---70---80---90---100 (b) ST-1 - ST-2 ST-48 ST-8 l ST-2 1 ST-5 1 ST-52 ST-3 6 ST-3 7 ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 7–33 : Autor(es): Loeb, V. and V. Siegel
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Cetaceans as indicators of historical and current changes in the East Antarctica ecosystem
approximately 1940 and 1970. A low age at sexual maturity favored an increase in the recruitment rate and total ... Antarctic minke whales could have decreased in recent years. Decrease in availability of krill for this ... middle of the past century and the recovery of krill-eater large whales since the 1980’s. There was an ... whale, which had not been exploited on a large scale. A review of the scientific information in East ...
Meeting Document : WG-EMM-16/64 : Autor(es): Y. Fujise and L.A. Pastene
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WG-FSA-91
fish stock assessment survey bottom trawl for South Georgia G. Parkes (United Kingdom) WG-FSA-91/17 Age ... /Germany WG-FSA-91/18 Age/length key for Champsocephalus gunnari from South Georgia; Hill Cove survey ... documents Doc Number Title WG-FSA-91/01 Provisional and Annotated Provisional Agenda for the 1991 meeting of ... Stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for ...
Meeting
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Precision of growth band determination from eyestalk sections of Antarctic krill (Euphausia superba) preserved in formalin
Abstract: Age information for commercial fish species is crucial to fishery management. Age ... Antarctic krill growth. This study presents important information for age determination, particularly for ... information for Antarctic krill (Euphausia superba) will be important for stock assessment modeling and future ... feedback management of krill fisheries. Samples stored in 70% ethanol provide an opportunity to detect the ...
Meeting Document : WG-EMM-18/P16 : Autor(es): G.P. Zhu, Y. Yang, Q. Song and H.T. Zhang
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2013 Report on bottom fisheries and vulnerable marine ecosystems
- 10/20 – see paragraphs 39 to 42 for a worked example). This code can be used to translate gear ... characterising other non-standard scenarios particular to these methods. An impact assessment for trawl gears is ... been developed, and an impact assessment was not completed for these methods. Instead, spatial effort ... index (SC-CAMLR-XXIX, Annex 4, paragraph 4.19) for trawls would yield an impact estimate distribution ...
Document : Site Section: Publications
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Changes in biomass of eight species of finfish around the South Orkney Islands (Subarea 48.2) from three bottom trawl surveys
/90. The biomass of several species of finfish has been monitored through scientific bottom trawl ... were computed for the eight species of finfish which were most abundant in catches. Biomass levels and ... of recovery for N. rossii. However, overall levels of biomass indicate very little potential for ... the South Orkney Islands (Subarea 48.2) suffered substantial declines from split-year 1977/78 to 1989 ... conducted during daylight hours. The target time for a haul was 30 minutes, with any haul less than 20 ... increase in point estimate biomass levels for this species suggests an increase in population levels from ... after the closure of the area for finfishing and about 10 years after the peak of commercial fishing ... there was an apparent decrease in biomass for all other species in 1999, particularly C. gunnari. The ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 53–74 : Autor(es): Jones, C.D., K.-H. Kock and E. Balguerías
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e-cc-xvi.pdf
... should occur in the year 2000 and that an allowance for this would need to be made in the 1998/99 budget ... Statements for 1996 and 1997......................... 3 Review of Budget for 1998 ... . Bock (Germany). 1.2 In opening the meeting, the Chairman said it was an honour for Germany to hold the ... admiration throughout the world for the work it had done over the last 16 years and he was confident that the
application/pdf attached to:CCAMLR-XVIMeeting Report : CCAMLR-XVI
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e-sc-xxvii-a4.pdf
... Option 1 has already been excluded as an option by this Working Group. For Options 2 (spatial ... that the risk metrics presented in WG-EMM-08/30 are based on the existing decision rules for krill ... fishery. For the purposes of the latter risk metric, WG-EMM-08/30 presented krill density thresholds of ... metric for krill described in WG-EMM-08/30 was computed as the probability that, at the end of the
application/pdf attached to:WG-EMM-08Meeting Report : WG-EMM-08
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e-cc-xv-a4.pdf
... originally adopted for a three-year trial period should be continued in 1997 and subsequent years. 13. The ... expressed its appreciation to the Government of Australia for the provision, free-of-charge, of such an ... , should be reappointed auditor of the Commission for the next two years. 7. The Committee noted that the ... 1995 that this would be required at least once every three years. As review audits have been
application/pdf attached to:SCAF-96Meeting Report : SCAF-96
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e-sc-xxix-a7.pdf
... establishing an annual review of a subset of data, target species data for example, collected by CCAMLR ... ...................................... 250 Development for an accreditation process and timeline ................................. 250 ... recalled TASO-09/9 which provided a pro-forma framework for the provision of observer program information ... demersal longline fisheries, is required prior to an observer being considered for deployment in Antarctic
application/pdf attached to:TASO-10Meeting Report : TASO-10