Resultados de la búsqueda

1. Consideration of major issues in ecosystem monitoring and management

   within which to investigate krill availability. Vital rates can be investigated directly and also by ... krill availability. Vital rates can be investigated directly and also by means of CEMP. The overlap ... to which the ecosystem ap- proach has been implemented by CCAMLR, with a view to examining how the ... was developed by Butterworth et al. (1991, 1994) and Constable and de la Mare (1996) is a ... ). Information on krill growth has recently been reviewed by Siegel and Nicol (2000). Although it is diffi ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 213–232 : Autor(es): Everson, I

2. The use of analysis of penguin stomach contents in simultaneous study of prey and predator parameters

   predator parameters Abstract / Description:  Size selectivity of krill by penguins is shown to be highly ... Size selectivity of krill by penguins is shown to be highly sensitive to the statistical assumptions ... parameters by taking into account changes in monitored prey parameters. It would also allow prediction of ... 2). At this stage it seems reasonable to assume that the question of size selectivity of krill by ... krill of different sizes; but krill size is also affected by the date of collection. The "penguin ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 367–375 : Autor(es): Marschoff, E. and B. González

3. Revised age and growth estimates for Antarctic starry skate (Amblyraja georgiana) from the Ross Sea

   . By counting fine growth bands in the caudal thorns instead of broad diffuse bands, growth curves have ... . By counting fine growth bands in the caudal thorns instead of broad diffuse bands, growth curves ... starry skate (Amblyraja georgiana) is frequently taken as by-catch in the Ross Sea fishery for ... and Mormede, 2008). Francis and Ó Maolagáin (2005) estimated growth param- eters for A. georgiana by ... resulted in a growth curve that suggested rapid initial growth for about five years, followed by a near ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 211–220 : Autor(es): Francis, M.P. and M.J. Gallagher

4. The fishery for Patagonotothen brevicauda guntheri in CCAMLR Subarea 48.3

   fishing is likely to have a significant effect on other species. P.b. guntheri has been reported as a by ... significant effect on other species. P.b. guntheri has been reported as a by-catch of other fisheries; this ... season catch and effort data, which include location and amount of catches by fine-scale rectangle (half ... a degree of latitude by one degree of longitude) and ten-day period, are required to be sent to ... CCAMLR. P.b. guntheri are small fish, rarely growing larger than 20 cm. They are not covered by any of ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 275–283 : Autor(es): Everson, I. and C. Mitchell

5. Estimating krill recruitment and its variability

   recruits in a population sampled by a net haul survey. Preliminary results from a series of five net haul ... of krill density-at-length data into the proportion of recruits in a population sampled by a net ... in the length interval of the j'h class, given by: where Pi and Pi+, are the length bounds of the ... age i. The values of D,, p, and k are estimated by finding the values for them which result in d ... each mixture component. The estimated value of R(t) for the survey is given by: Only D, and the sum ...

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

6. On the power to detect changes using the standard methods for monitoring parameters of predatory species

   Islands of lengths of first incubation shifts by penguins(Standard Method A2.1), duration of penguin ... incubation shifts by penguins (Standard Method A2.1), duration of penguin foraging trips (AS.1), penguin ... power analysis were compiled by the CCAMLR Secretariat (CCAMLR, 1989). That paper described the method ... -linear trend in a parameter. Methods for such analysis were presented by Gerrodette (1987). When the ... described by Nam (1987). The quantities required in a power analysis for detecting trends are essentially ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 377–397 : Autor(es): Boveng, P. and J.L. Bengtson

7. Large-scale peculiarities of phytocenosis species composition in the surface layer in the Antarctic Atlantic and Indian Ocean sectors

   samples (layer between 0 and 1 m) taken with a sampler towed by RV Professor Vize, Corethron criophilus ... ) taken with a sampler towed by RV Professor Vize, Corethron criophilus dominated over vast areas within ... the help of routine oceanographic surveys is practically impossible. Recorders towed by the vessel ... by RV Professor Vize (AANII Research Institute) during the cruise in the Atlantic and Indian Ocean ... the sampler did not differ greatly from that of samples taken by nets in the layer between 0 and 100 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 201-214 : Autor(es): Makarov, R.R. and K.P. Fedorov

8. Diet of the Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (Subarea 88.1)

   (Subarea 88.1) Abstract / Description:  The diet of Antarctic toothfish (Dissostichus mawsoni) captured by ... , Nelson New Zealand Abstract The diet of Antarctic toothfi sh (Dissostichus mawsoni) captured by bottom ... shery (trawling is not permitted within these subareas) in these waters is currently managed by CCAMLR ... management. This exploratory status requires a high degree of reporting and research data collection by ... –March 2001 and January–March 2002). Fish were caught by bottom longline at depths of 317–2 154 m in ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 113–123 : Autor(es): Fenaughty, J.M., D.W. Stevens and S.M. Hanchet

9. Distribution and size–age composition of Antarctic krill (Euphausia superba) in the South Orkney Islands region (CCAMLR Subarea 48.2).

   composition and biological condition of Antarctic krill (Euphausia superba) caught by the Russian krill ... ). These estimates are shown to be influenced by regional hydrometeorological factors (Makarov, 1983 ... , size–age composi- tion and maturity stage of E. superba caught by the Russian commercial trawler FV ... Antarctic krill (Euphausia superba) caught by the Russian krill trawler FV Maxim Starostin in Subarea 48.2 ... opera- tions were conducted within the area bounded by 60°00.0'S–60°50.0'S and 44°55.7'W–48°00.0'W ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 123–134 : Autor(es): Sologub, D.O. and A.V. Remeslo

10. Krill biomass assessment in Statistical Area 48 from the RV AtlantNIRO data - Autumn 1989/90

    in the South Sandwich and South Orkney Islands areas during a cruise by RV AtlantNIRO in March/April ... areas during a cruise by RV AtlantNIRO in March/April 1990. The survey was conducted in the upper 100 ... 600 S; 32° to 18°W) and southern (60° to 67°S; 20° to 18°W), was affected by different types of ... , modified by Aseev-Samyshev (6 m2; 6 mm mesh), in the upper 100 m layer using the double oblique hauling ... method (0-100-0 m) at a towing speed of 3.2 to 3.6 knots. Trawling depth was controlled by a trawl probe ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 115–121 : Autor(es): Fedotov, A.C.

Páginas