Результаты поиска

1. Preliminary studies on age, growth and size at sexual maturity of Dissostichus eleginoides in the Ob-Lena Bank in the 2007/08 season

   of otolith readings by experienced readers of AAD. One of these is that the first ring was generally ... rate and reached a larger size than males. The individuals with 80 cm total length, which are generally ... hand, the age at 50 % maturity for females and males was estimated to be 12.3 and 12.5 year ... , respectively, assuming animals with maturity stage > I. However, the results in reading for 40 reference ...

   Meeting Document : WG-FSA-11/16 : Автор(ы): K. Taki, T. Iwami and M. Kiyota (Japan)

2. Observations of demersal fish, benthic communities and seafloor composition of the Southern Ocean Atlantic sector from the ICEFISH 2004 cruise

   invertebrate species composition between island groups was observed, with the greatest differences between the ... the different community structure. Due to mixed gear selectivity and possible avoidance, it was not ... , estimates of benthic invertebrate densities by station were computed and maps generated that provide ...

   Meeting Document : WG-FSA-04/61 : Автор(ы): C.D. Jones, S.J. Lockhart and D.F. Doolittle (USA)

3. By-catch of juvenile fishes – the Antarctic krill fishery

   together with the massive antarctic krill exploitation during the 80's. There has been recognized ... larvae that use (or co-occurred) the krill swarms as their habitat. The detection of this problem started ... quantitative evaluations that give evidences that this technological interaction, is affecting the recovery of ... over-exploited populations or that commercial or noncommercial populations are diminishing. Author(s ...

   Meeting Document : WG-FSA-96/18 : Автор(ы): Moreno, C.A.

4. Mackerel icefish Champsocephalus gunnari in the diet of upper trophic level predators at South Georgia: implications for fisheries management

   dominant mode at 180-200 mm total length (1+ age class), with strong cohorts entering the population in ... 1993, 1996, 1999 and 2001. A recruitment index based on the contribution by mass of the 1+ age-class in ... (s):  K. Reid, S. Hill and T. Diniz (United Kingdom) Title:  Mackerel icefish Champsocephalus gunnari ...

   Meeting Document : WG-FSA-03/74 : Автор(ы): K. Reid, S. Hill and T. Diniz (United Kingdom)

5. Assessment models for Antarctic toothfish (Dissostichus mawsoni) in SSRU 882E including data from the 2005/06 season

   estimated to be 352 t for the reference case and 366 t for the all vessels case, assuming a future fishing ... and recapture data and the all vessel tag-release and recapture data (B0= 10 300 t and 9 530 t ... respectively). Model fits to the data were adequate, with the tag-release and recapture data providing the most ... MCMC estimates of initial (equilibrium) spawning stock abundance (B0) were very uncertain, with the ...

   Meeting Document : WG-FSA-06/48 : Автор(ы): A. Dunn and S.M. Hanchet (New Zealand)

6. An assessment of the impact of krill fishery on penguins in the South Shetlands

   equivalent amount (3,000-10,000 t/10-day) for the following three months, with its increased fishing ... penguins is estimated to be large in the shelf and slope near King George Island (11,680 t/10-day), whereas ... small near Livingston (2,570 t/10-day) and Elephant (220 t/10-day) Islands. This little overlap between ... into and out of the area, but high krill biomass (100-1000 x103t) usually existed there. Compared with ...

   Meeting Document : WG-KRILL-93/07 : Автор(ы): T. Ichii, M. Naganobu and T. Ogishima (Japan)

7. The BROKE-West acoustic krill biomass survey of CCAMLR Division 58.4.2

   is intended to produce a new estimate of B0 for this Division so that a revised precautionary catch ... limit can be established by CCAMLR.. The survey will be conducted from a single ship and will consist of ... . Nicol, S. Kawaguchi, T. Jarvis and T. Pauly (Australia) Title:  The BROKE-West acoustic krill biomass ...

   Meeting Document : WG-EMM-05/11 : Автор(ы): S. Nicol, S. Kawaguchi, T. Jarvis and T. Pauly (Australia)

8. Antarctic krill fisheries management: "What's next?"

   that could be used to do this, and ASOC encourages CCAMLR to develop a plan for discussion of these ... data collection by fishing operators and from CEMP will be critical to progressing FBM. Another ... outstanding need is the ability to quantify krill flux, a factor that creates considerable uncertainty for ... practice. Author(s):  Submitted by ASOC Title:  Antarctic krill fisheries management: "What's ...

   Meeting Document : SC-CAMLR-XXXV/BG/18 : Автор(ы): Submitted by ASOC

9. Age determination of the Antarctic fishes Champsocephalus gunnari and Notothenia rossii from South Georgia

   periodicity in Antarctic hydrographic conditions, age determination of Antarctic fish has proven to be ... a fish's past history. As part of an effort to study Antarctic fish growth and population ... . Multivariate mathematical models relating age to otolith morphometrics and fish size demonstrated that age ... could be reliably determined from body measurements and otolith measurements. These techniques allowed ...

   Meeting Document : SC-CAMLR-VI/BG/43 : Автор(ы): R. Radtke (USA)

10. Progress on the application of an age-structured production model fitted to commercial catch-rate and catch-at-length data to assess the toothfish (Dissostichus eleginoides) resource in the Prince Edward Island vicinity

    particular, to accommodate the view of the August 2003 meeting of the Subgroup on assessment methods that 0.2 ... stock status that can be argued from these analyses, it is suggested that annual catch levels should not ... allow the estimation of a selectivity-at-age function that decreases at larger ages. This is, in ... yr-1 is likely the largest value of natural mortality M that is plausible for toothfish. Catch, catch ...

    Meeting Document : WG-FSA-03/97 : Автор(ы): A. Brandão and D.S. Butterworth (South Africa)

Страницы