Resultados de la búsqueda

1. Estimating krill recruitment and its variability

   and above) of 0.339 with a standard deviation (SD) of 0.100. The corresponding result for recruitment ... nine surveys is 0.552 with a standard deviation of 0.074. A number of the assumptions needed for ... rate for 1+ krill (the ratio of the number of krill aged one year to the number of krill aged one year ... for 2+ krill (the ratio of the number of two-year-old krill to the number aged two and above) from ... deriving the estimates. Table 3 gives preliminary results from these surveys, with R(t) estimated for ... methods for the design and execution of future net haul surveys. With regard to assumptions 2 and 3 ... surveys, with a youngest putative age of two years. Top - Marion Dufresne during FIBEX, centre - Walther ... density-at-length data from various surveys, with a youngest putative age of two years. Top - Professor ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 55–69 : Autor(es): de la Mare, W.K

2. A simulation study of the method of deriving natural mortality rate using data for Champsocephalus gunnari in Subarea 48.3

   year Ey • A general procedure for the study of natural mortality rate specification with the use of ... the value of 0.35 used by the Working Group on Fish Stock Assessment (WG-FSA) in previous years. In ... Frolkina and Dorovskikh, 1990). Age composition of the catches, Ca.)!, for a series of years and ... practical calculations, with regard for the random pattern of the initial data and the final sample amount ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 69–83 : Autor(es): Gasyukov, P.S. and R.S. Dorovskikh

3. Potential interactions between wandering albatrosses and longline fisheries for Patagonian toothfish at South Georgia

   that D. exulans breeding at South Georgia have a relatively low potential risk of interaction with ... have used, with permission of the parties concerned, CCAMLR data for the years 1990/91 to 1993/94 ... times of the year when the potential for albatross mortality associated with longline fishing might be ... m and deeper. - - and fishing took place in most months of the year with between 1 and 12 ... CCAMLR Science, Vol. 3 (1996): 101-110 POTENTIAL ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 101–110 : Autor(es): Croxall, J.P. and P.A. Prince

4. Modelling and decision making as part of the CCAMLR management regime

   predator (seal) harvests. A time horizon of 5 years is considered appropriate, with time steps of one ... fishing. 5 years. 1 year unless there is a seasonal influence ·on the population. Data limited ... and prey biomass. Harvest of predators and prey. 5 years. 1 year unless there is a seasonal ... biomass. Prey biomasses and harvesting. 5 years. 1 year unless there is a seasonal influence on the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 295-322 : Autor(es): Miller, D.G.M.

5. Status of the FIBEX acoustic data from the West Atlantic

   survey) with data collected at 120 kHz (all other vessels), it is concluded that this does not materially ... are consistent with the other surveys. The authors can find no explanation for this difference. File ... with a modal integration interval of 3 706 m. Therefore, prior to the re-analysis carried out for the ... factor due to the combination of data collected at 50 kHz (Walther Herwig survey) with data collected ... biomass. The data from the Professor Siedlecki survey do not provide estimates that are consistent with ... Krq ( B C ~ OCTaJIbHbIe c y ~ a ) , CAeJIaHO 3aKJIIoYeHHe 0 TOM, Y T O 3 T 0 He CKa3bIBaeTCR ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 35–48 : Autor(es): Trathan, P.N. and I. Everson

6. Potential impacts of bottom trawling on benthic communities in Prydz Bay, Antarctica

   ~eMepCaJIbHhlX nJIaBHHKOBhlX phl6 B 3aJIHBe TIpIO~3 B 1990/91 r. C06paHHble ~aHHble HCnOJIb- 30BaJIHCb B H3Y ... 3aJIHBe TIpIO~3. Pe3YJIbTaTbI TaK)l{e YKa3bIBaIOT Ha TO, '-ITO He06xo~HMO HCCJIe~OBaTb npHpo~y 6eHTH ... tomar medidas que salvaguarden su integridad. 1. INTRODUCTION In the last 10 years, a number of ... unfished areas in the South Atlantic and suggested that bottom trawling in the past 20 years has had a ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 403–410 : Autor(es): Constable, A.J.

7. A quantified Bayesian Maximum Entropy estimate of Antarctic krill abundance across the Scotia Sea and in small-scale management units from the CCAMLR-2000 Survey

   tonnes, with a standard deviation of 10 million tonnes. The MaxEnt method provides new insights into the ... content of the image. It is informative that as reconstructions with 6–9 hidden channels (Figure 3) are ... biomass inferred for the survey area was 208 million tonnes, with a standard deviation of 10 million ... placed transects, and the CCAMLR- 2000 Survey was designed in accordance with such transect placing ... data can be considered as an image in which krill densities are plotted on a rectangular grid, with ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 97–116 : Autor(es): Heywood, B.G., A.S. Brierley and S.F. Gull

8. Attribtuion of acoustic echoes to squid in the south Atlantic

   r n o n a e ~ a o f i B 6 n ~ 3 n e ~ a 1 q ~ x BoAax, c qenbm onpenenmb aKycTIlvecKHe ... and Loligo gahi), but a third species, sometimes caught as a by-catch with Illex argent inus , the ... acoustic targets that could be attributed to the haul. No other species were caught with the squid which ... the area, also described here, only small numbers of squid were caught; these did not coincide with ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 259–271 : Autor(es): Goss, C., P. Rodhouse, J.L. Watkins and A.S. Brierley

9. A review of the trophic role of mesopelagic fish of the family Myctophidae in the Southern Ocean ecosystem

   BbICOKYIO YHCneHHOCTb U 6UoMaccy 3 T H X pb16. C O ~ J I ~ C H O npe~BapHTeJlbH0fi OqeHKe, rOAOBOe ... IlpOAyKqHIO O ~ ~ ~ H U ~ M O B B~ICLLIUX 3 ~ e ~ b e ~ n a ~ e s o f i qenH ( o n p e ~ e n e ~ ~ b ~ x ... high latitudes (62" to 65"s; sometimes even further south) where ACC waters extend southward. Years ... Antarctic ecosystem. Detailed studies are rare, however, and all deal only with the most abundant species ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 71–77 : Autor(es): Kozlov, A.N

10. An assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank (CCAMLR Division 58.4.3b) based on fine-scale catch and effort data

    result, coupled with high estimated levels of illegal, unreported and unregulated (IUU) fishing, and ... inconsistencies are noted between historical data and those submitted in the 2006/07 season, with Patagonian ... -catch catch and effort. Further research, particularly research surveys, would greatly assist with ... seasons. This result, coupled with high estimated levels of illegal, unreported and unregulated (IUU ... season, with Patagonian toothfish (D. eleginoides) reportedly replacing Antarctic toothfish (D. mawsoni ... surveys, would greatly assist with assessing the status and stock structure of Dissostichus spp. in this ... and autoline longlines to target toothfish, with the overwhelming majority of catches comprising D ...

    Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 55–78 : Autor(es): McKinlay, J.P., D.C. Welsford, A.J. Constable and G.B. Nowara

Páginas