Résultats de la recherche

1. Low genetic diversity and temporal stability in the Antarctic toothfish (Dissostichus mawsoni) from near-continental seas of Antarctica

   (Dissostichus mawsoni) from near-continental seas of Antarctica Abstract / Description:  This study presents ... data on the DNA analysis of recent (2011–2013) samplings of Antarctic toothfish (Dissostichus mawsoni ... analysis of the most informative subset of nuclear genetic markers of SNP variation presented in Kuhn and ... Gaffney (2008), do not support genetic differentiation of samples from the Ross Sea. Discrepancies in the ... late 1990s and the fleet use mainly bottom-set longlines at depths of 1 200–1 800 m. Defining the ... population structure of D. mawsoni is crucial for improved management of the tooth- fish fishery, but the ... number of populations or stock units is unknown and is the subject of scientific debate. There may be ... differentiation could take place among different sectors of Antarctica – most particularly between the Ross Sea ...

   Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 1–9 : Auteur(s): Mugue, N.S., A.F. Petrov, D.A. Zelenina, I.I. Gordeev and A.A. Sergeev

2. Low breeding success of the Adélie penguin at Béchervaise Island in the 1998/99 season

   Paper Title:  Low breeding success of the Adélie penguin at Béchervaise Island in the 1998/99 ... season Abstract / Description:  This paper describes the diet and foraging behaviour of Adelie penguins ... (Pygoscelis adeliae) at  Béchervaise Island during 1998/99, a season of low breeding success. Fifty-six ... percent of nests with eggs failed during the three weeks following first hatch. A breeding success of 0.43 ... Abstract This paper describes the diet and foraging behaviour of Adelie penguins (Pygoscelis adeliae) at ... count when two thirds of the chicks were creching. In this paper annual breeding success has been ... SUCCESS OF THE ADELIE PENGUIN AT BECHERVAISE ISLAND IN THE 1998199 SEASON L.G. Irvine, J.R. Clarke and ... Bechervaise Island during 1998/99, a season of low breeding success. Fifty-six percent of nests with eggs ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 151–167 : Auteur(s): Irvine, L.G., J.R. Clarke and K.R. Kerry

3. Statistical power to detect changes in growth rates of Antarctic fur seal pups

   Paper Title:  Statistical power to detect changes in growth rates of Antarctic fur seal pups ... Abstract / Description:  Numerical simulations were used to investigate the power of methods for detecting ... changes (between years) in pup growth rates, the loss of power associated with obtaining weight samples on ... only three dates in a season, and potential means of increasing the power of the CCAMLR Ecosystem ... IN GROWTH RATES OF ANTARCTIC FUR SEAL PUPS P. Boveng, J. L. Bengtson and M. E. Goebel Abstract ... Numerical simulations were used to investigate the power of methods for detecting changes (between years ... ) in pup growth rates, the loss of power associated with obtaining weight samples on only three dates ... in a season, and potential means of increasing the power of the CCAMLR Ecosystem Monitoring Program ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 399–409 : Auteur(s): Boveng, P., J.L. Bengtson and M.E. Goebel

4. Fishing for toothfish using pots: results of trials undertaken around South Georgia, March–May 2000

   Paper Title:  Fishing for toothfish using pots: results of trials undertaken around South Georgia ... , March–May 2000 Abstract / Description:  During the period March to May 2000, the UK undertook trials of ... commercial viability of this fishing method for toothfish fisheries in the CCAMLR Convention Area. While the ... method successfully caught D. eleginoides, there was a large by-catch of crab species. The catch rate of ... TOOTHFISH USING POTS: RESULTS OF TRIALS UNDERTAKEN AROUND SOUTH GEORGIA, MARCH-MAY 2000 D.J. Agnew ... Renewable Resources Assessinent Group Imperial College, Royal School of Mines Prince Consort Road ... period March to May 2000, the UK undertook trials of a pot fishing method to catch Patagonian toothfish ... the trial and the results, and discusses the commercial viability of this fishing method for ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 93–105 : Auteur(s): Agnew, D.J., T.M. Daw, G.M. Pilling and M.G. Purves

5. Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of tag-detection rates

   and temporal confounding. This paper presents a method that utilised most of the data while also ... temporally controlled measures of tag-detection rates Abstract / Description:  A reliable commercial fish ... tagging program is critical to the successful management of a number of toothfish fisheries in Antarctica ... an integrated stock assessment. Previous attempts to assess the relative reliability of vessels in ... for spatial and temporal confounding. This paper presents a method that utilised most of the data ... in this paper can allow the development of spatially and temporally controlled measures of ... -structured stock assessment model of Antarc- tic toothfish (Dissostichus mawsoni) to determine sustainable ... yields (Mormede et al., 2011a, 2011b; Mormede, 2011). In those analyses, the assumed values of ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 73–80 : Auteur(s): Mormede, S. and A. Dunn

6. Midwater trawl catchability in relation to krill and possible ways of assessing gross catch

   Paper Title:  Midwater trawl catchability in relation to krill and possible ways of assessing ... the basis of data obtained from AtlantNIRO expeditions from 1983 to 1990 in the Scotia Sea. A ... methodology was developed for and applied to determining the rate of krill filtration through the trawl rope ... and netting and also the probability that krill will come into contact with various parts of the net ... TO KRILL AND POSSIBLE WAYS OF ASSESSING GROSS CATCH Yu.V. Zimarev*, S.M. Kasatkina* and Yu.P ... . Frolov** Abstract Research into midwater trawl catchability rates was carried out on the basis of ... developed for and applied to determining the rate of krill filtration through the trawl rope and netting ... and also the probability that krill will come into contact with various parts of the net as it passes ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 87–113 : Auteur(s): Zimarev, Yu.V., S.M. Kasatkina and Yu.P. Frolov

7. Hook selectivity in the longline fishery of Dissostichus eleginoides (Nototheniidae) off the Chilean coast

   Paper Title:  Hook selectivity in the longline fishery of Dissostichus eleginoides (Nototheniidae ... Chilean fisheries of the Patagonian toothfish, Dissostichus eleginoides is reviewed in order to study ... selectivity of different types and sizes of hooks used in longlines. Original data obtained during 1991 off ... the coast of Valdivia, South East Pacific, are also taken into consideration. The data show that ... OF DISSOSTICHUS ELEGINOIDES (NOTOTHENIIDAE) OFF THE CHILEAN COAST Carlos A. Moreno* Abstract ... Existing information from technical publications on Chilean fisheries of the Patagonian toothfish ... , Dissostichus eZeginoides is reviewed in order to study selectivity of different types and sizes of hooks used ... in longlines. Original data obtained during 1991 off the coast of Valdivia, South East Pacific, are ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 107–119 : Auteur(s): Moreno, C.A.

8. Distribution of fish larvae at South Georgia: horizontal, vertical, and temporal distribution and early life history relevant to monitoring year-class strength and recruitment

   Paper Title:  Distribution of fish larvae at South Georgia: horizontal, vertical, and temporal ... / Description:  Four studies on the early life history stages of Antarctic fish at South Georgia are reported ... abundant near the coast, but rare in oceanic waters. During winter in the 265 m deep fiord of Cumberland ... East Bay the early stages of many species were found throughout the water column. In summer only four ... , and the midwater fishes (mainly Myctophidae). The purpose of this paper is to communicate ... - 105 - WG-FSA-87/16 DISTRIBUTION OF FISH LARVAE AT ... the early life history stages of Antarctic fish at South Georgia are reported. In winter and summer ... , but rare in oceanic waters. During winter in the 265 m deep fiord of Cumberland East Bay the early ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 105-141 : Auteur(s): North, A.W.

9. Preliminary report on biological observations and exploratory fishing data collected in the South Georgia area during the 1985/86 cruise of MT Carina

   in the South Georgia area during the 1985/86 cruise of MT Carina Abstract / Description:  A fish ... survey in South Georgia waters was undertaken from November 1985 to January 1986 as a part of the on ... -going fish stock monitoring program conducted by the Sea Fisheries Institute, Gdynia. Codends of two ... mesh sizes (47 and 60 mm) were used with a bottom trawl of 32 m head rope. Catch data were collected in ... /1986 CRUISE OF MT CARINA K. Kreft, J. Szynaka Poland Abstract A fish survey in South Georgia ... waters was undertaken from November 1985 to January 1986 as a part of the on-going fish stock ... monitoring program conducted by the Sea Fisheries Institute, Gdynia. Codends of two mesh sizes (47 and 60 ... mm) were used with a bottom trawl of 32 m headrope. Catch data were collected "in 249 hauls using ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 65-97 : Auteur(s): Kreft, K. and J. Szynaka

10. Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground

    Paper Title:  Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald ... adopted whereby the relatively long time series of catch-at-age and mark-recapture data from the main ... to 2008. A large proportion of the recaptures of fish released in this fishery were aged and these ... directly from the estimates of population numbers-at-age. The properties of these two models for estimation ... ) models by Candy (2011), (see that paper for a detailed descrip- tion of the models and estimation ... - ity of a stock when considered in combination with annual number of recruits, growth rate in body ... size and the age-at-maturity ogive. The integrated assessments using CASAL (Bull et al., 2005) of ... (D. mawsoni) in the Ross Sea (Subarea 88.1) (Dunn and Hanchet, 2007) apply a fixed value of M of ...

    Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 29–45 : Auteur(s): Candy, S.G., D.C. Welsford, T. Lamb, J.J. Verdouw and J.J. Hutchins

Pages