Résultats de la recherche

1. Evidence to support the annual formation of growth zones in otoliths of Antarctic toothfish (Dissostichus mawsoni)

   translucent zone is formed annually in otoliths of juvenile D. mawsoni. Mean fish lengths at ages 0.5, 1.5 ... Paper Title:  Evidence to support the annual formation of growth zones in otoliths of Antarctic ... annually in the otoliths of this species. However, no evidence to validate this assumption has previously ... estimates agree with growth curves calculated previously from a sample of data that was large but lacked any ... been at liberty from 1 to 7 years. The number of zones between the fl uorescent oxytetracycline line ... microscope at ×25 and ×40 magnifi cation. The number of complete translucent (dark) zones was counted and ... ventral sides of the section. The reader was not aware of fi sh length or otolith weight at the time ... colour photographs were taken of each section. Each pair was of the same portion of the section, at ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 125–138 : Auteur(s): Horn, P.L., C.P. Sutton and A.L. DeVries

2. Moulting interval and growth of juvenile Antarctic krill fed different concentrations of the diatom Phaenodactylum tricornutum in the laboratory

   Paper Title:  Moulting interval and growth of juvenile Antarctic krill fed different ... concentrations of the diatom Phaenodactylum tricornutum in the laboratory Abstract / Description:  Juvenile ... Antarctic krill (Euphausia superba) were fed Phaenodactylum tricornutum, at concentrations ranging from 0.0 ... –5.0 mgC 1 –1. Intermoult period (IP) decreased, but an increment of body length per moult (∆BL) of ... OF JUVENILE ANTARCTIC KRILL FED DIFFERENT CONCENTRATIONS OF THE DIATOM PHAENODACTYLUM TRICORNUTUM IN ... superba) were fed Phaeodactylum tricornutum, at concentrations ranging from 0.0-5.0 mgC 1 1. Intermoult ... period (IP) decreased, but an increment of body length per moult (6BL) of juvenile krill increased, up ... to a concentration of 1.0 mgC 1-1 • No further effect of food concentrations on IP or 6BL was seen ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 223-225 : Auteur(s): Ikeda, T. and P.G. Thomas

3. Status of the coastal stocks of Dissostichus spp. in East Antarctica (Divisions 58.4.1 and 58.4.2)

   explores several methods for arriving at estimates of sustainable yields. Biological data suggest that ... between them being at about 90°E. The western stock may be centred around Prydz Bay, and appears to be of ... Paper Title:  Status of the coastal stocks of Dissostichus spp. in East Antarctica (Divisions ... operating off the coast of East Antarctica (30°E–150°E; FAO/CCAMLR Divisions 58.4.1 and 58.4.2) since 2003 ... results of this experiment and explores several methods for arriving at estimates of sustainable yields ... - mental fishery at what it considered to be an arbi- trary, but precautionary, level of 260 tonnes for ... data for evidence of stock definition and distribution and explores several methods for arriving at ... biomass in each SSRU for the time period of the experiment (i.e. at the approxi- mate centre of the time ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 71–100 : Auteur(s): Agnew, D.J., C. Edwards, R. Hillary, R. Mitchell and L.J. López Abellán

4. Composition and characteristics of ichthyofauna in pelagic waters of South Georgia (Subarea 48.3)

   ichthyocenosis in the subarea consisted of pelagic fishes (mainly Myctophidae), distributed at a depth range of ... Paper Title:  Composition and characteristics of ichthyofauna in pelagic waters of South Georgia ... (Subarea 48.3) Abstract / Description:  This paper presents the results of randomly stratified pelagic ... trawl census surveys conducted in Subarea 48.3. From 1984 to 1990 daily sampling stations aimed at ... sampling stations aimed at studying the vertical migrations of some of the most abundant species were ... ), distributed at a depth range of 250 to 300 m, as well as demersal fishes in the pelagic stage of their life ... i t u t e of Mar ine Fisheries a n d Oceanography (At lan tNIRO) car r ied o u t six pe ... fishing zone (70-100 m) to the 500-metre isobath both during the day and at night. The number of hauls ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 125–164 : Auteur(s): Frolkina, G.A., M.P. Konstantinova and I.A Trunov

5. Genetic variations and population structure of krill from the Prydz Bay region of Antarctic waters

   allele distributions at four polymorphic loci indicate no evidence of significant heterogeneity, a result ... of the Southern Ocean, suggesting that krill stocks over at least 6000 kilometres of Antarctic waters ... Paper Title:  Genetic variations and population structure of krill from the Prydz Bay region of ... Antarctic waters Abstract / Description:  Samples of Antarctic krill E. superba from six locations near ... allele distributions at four polymorphic loci indicate no evidence of significant heterogeneity, a ... the Atlantic sector of the Southern Ocean, suggesting that krill stocks over at least 6000 ... POPULATION STRUCTURE OF KRILL FROM THE PRYDZ BAY REGION OF ANTARCTIC WATERS C.M. MacDonald, R. Williams ... and M. Adams (Australia) Abstract Samples of Antarctic krill E. superba from six locations near ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 271-273 : Auteur(s): MacDonald, C.M., R. Williams and M. Adams

6. Diurnal variations in biological characteristics of krill, Euphausia superba Dana, to the west of the South Orkney Islands, 24 March to 18 June 1990 - based on data reported by a biologist-observer

   in periods of light or darkness was noted at several stations. Increases in the proportion of males ... Paper Title:  Diurnal variations in biological characteristics of krill, Euphausia superba Dana ... , to the west of the South Orkney Islands, 24 March to 18 June 1990- based on data reported by a ... biologist-observer Abstract / Description:  Investigations of diurnal variations in the size composition of ... noted at several stations. Increases in the proportion of males in the catch, as well as an increased ... only one sample per station. These samples are collected on different days and at different times of ... composition analysis. Moreover, euphausiids captured in the same place but at different times of the day can ... of March to the middle of June, 1990 (Table 1). At each station a series of catches was made using a ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 201–222 : Auteur(s): Vagin, A.V., R.R. Makarov and L.L. Menshenina

7. A preliminary assessment of age and growth of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica

   –11.0 and 15.1–15.5 cm. Mean lengths of 4.9 and 7.3 cm (at ages 1.3 and 2.3 years respectively) are ... Paper Title:  A preliminary assessment of age and growth of Antarctic silverfish (Pleuragramma ... . Standard length and weight were well correlated (r 2 = 0.99). Counts of growth zones in 304 thin-sectioned ... than males, but none of the estimated von Bertalanffy parameters were statistically significantly ... –11.0 and 15.1–15.5 cm. Mean lengths of 4.9 and 7.3 cm (at ages 1.3 and 2.3 years respectively) are ... about 0.6 mm. Because the fish for the current work were sam- pled at the end of summer, otolith ... study that the first opaque zone formed at about 3 months of age, but was not clearly visible or not ... the length­frequency distribution oc- curred at 7.1–7.5, 10.6–11.0 and 15.1–15.5 cm. Mean lengths of ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 75–86 : Auteur(s): Sutton, C.P. and P.L. Horn

8. Preliminary analyses of data collected during experimental phases of the 1994/95 and 1995/96 Antarctic crab fishing seasons

   fishable Paralomis spinosissima is highest off the northern coast of South Georgia and at depths of about ... tagged and released during Phase 2. Four of the tagged crabs were recovered, and these crabs were at ... Paper Title:  Preliminary analyses of data collected during experimental phases of the 1994/95 and ... Champion during Phases 1 and 2 of the experimental crab fishery were analysed using generalised additive ... fishable Paralomis spinosissinza is highest off the northern coast of South Georgia and at depths of about ... crabs were at liberty for about one to five weeks. The recaptured crabs had minimum movement rates of ... at the beginning of the second season i n which a vessel participates in the crab fishery. In ... Antarctic crab fishery at the end of January, 1996 to participate in Subarea 48.3's fishery for ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 141–159 : Auteur(s): Watters, G

9. Sexing of adult Adélie penguins by discriminant analysis of morphometric measurements

   population at Stranger Point (King George/25 de Mayo Is., South Shetland Islands). The sex of each bird had ... Paper Title:  Sexing of adult Adélie penguins by discriminant analysis of morphometric ... measurements Abstract / Description:  Discriminant analysis of eight morphometric measurements was used to ... determine the sex of Adélie penguins. A sample of 46 adult birds was taken for measurement from the breeding ... breeding population at Stranger Point (King George/25 de Mayo Is., South Shetland Islands). The sex of ... studies it would be necessary to know the sex of penguins on their arrival at the breeding colony. A ... of Adelie penguins at Stranger Point (62°14'S, 58°40'W, King George/25 de Mayo Is., South Shetland ... Warham (1975). They were: flipper length of open wing (FL), flipper breadth at the widest point near the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 543–549 : Auteur(s): Scolaro, J.A., Z.B. Stanganelli, H. Gallelli and D.F. Vergani

10. Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass

    ) the median status of the spawning stock at the end of the projection trial (as a proportion of the ... ) whether the stock became critically depleted in that trial and (ii) the status of the stock at the end of ... Paper Title:  Bias in the estimation of krill yield from using a deterministic formulation of the ... parameters and abundance of the stock being assessed. CCAMLR currently uses results from the krill yield ... spawning stock at the end of the projection trial (as a proportion of the median pre-exploitation spawning ... depleted in that trial and (ii) the status of the stock at the end of the trial. These values from all ... and (ii) the median status of the spawning stock at the end of the projection trial (as a proportion ... trial and (ii) the status of the stock at the end of the trial. These values from all trials are used ...

    Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 1–8 : Auteur(s): Constable, A.J. and W.K. de la Mare

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