Résultats de la recherche

1. 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 ... found in the stomach of a given penguin prevents the pooling of krill lengths from different samples ... highly significant linear regression between krill size and time of sampling was found. Full use of ... 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 : Auteur(s): Marschoff, E. and B. González

2. 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 ... bands counted by Francis and Ó Maolagáin (2005) (Figure 1). They found the thorns difficult to count ... . 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 ...

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

3. 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 : Auteur(s): Everson, I. and C. Mitchell

4. 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 : Auteur(s): de la Mare, W.K

5. 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 : Auteur(s): Boveng, P. and J.L. Bengtson

6. 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 ... phytoplankton composition was also found near the continent (Alasheev Bay). During the observation season ... ) 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 : Auteur(s): Makarov, R.R. and K.P. Fedorov

7. 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 : Auteur(s): Fenaughty, J.M., D.W. Stevens and S.M. Hanchet

8. 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 ... cohort was found in catches in 2009 or in 2010. This absence of 1+ E. superba is unlikely to be a result ... of samples (less than 0.0008% by weight); in 2010, 237 E. frigida were found in 730 kg of samples ... ). 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 ...

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

9. 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 : Auteur(s): Fedotov, A.C.

10. Status of the krill stock around Elephant Island in 1991/92 and 1992/93

    appeared to be affected by dense salp concentrations during 1992/93 and 1989/90. File:  02loeb-siegel.pdf ... , maturity stage composition and reproductive activity of hill appeared to be affected by dense salp ... Antarctic krill resources and as a source of background data for predator-prey investigations conducted by ... -Krill) contribution by Loeb and Siegel (1992). That data set is now complete and is compared here with ... distributions) using the CSS statistical package was described in detail by Loeb and Siege1 (1992). The pooled ...

    Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 7–33 : Auteur(s): Loeb, V. and V. Siegel

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