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Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea
Paper Title: Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea Abstract ... / Description: X-rays of vertebral half-centra, and x-rays and transmitted white light examination of caudal ... thorns, were used to estimate the ages of the Antarctic skate (Amblyraja georgiana) from the Ross Sea ... precision was low, producing uncertain age estimates. Furthermore, annual deposition of thorn bands has not ... reviewer of this paper questioned whether skates living in cold Antarctic waters could reach such a large ... , Vol. 12 (2005): 183–194 183 AGE AND GROWTH OF THE ANTARCTIC SKATE (AMBLYRAJA GEORGIANA) IN THE ... ROSS SEA M.P. Francis and C. Ó Maolagáin National Institute of Water and Atmospheric Research (NIWA ... -rays of vertebral half-centra, and x-rays and transmitted white light examination of caudal thorns ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 183–194 : Autor(es): Francis, M.P. and C. Ó Maolagáin
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A statistical method for estimating the level of IUU fishing: application to CCAMLR Subarea 48.3
Paper Title: A statistical method for estimating the level of IUU fishing: application to CCAMLR ... , unregulated and unreported (IUU) catches of fish and by-catch of birds. It utilises high quality, well ... -documented fisheries protection vessel (FPV) cruise data. The method takes explicit account of both ‘seen ... ’ and ‘unseen’ IUU fishing by using a simulation model to arrive at statistically rigorous estimates of ... paper describes a new method for estimating illegal, unregulated and unreported (IUU) catches of fi sh ... activity to be made. This paper develops a metho dology, based around a simulation model of IUU vessel ... the purposes of this paper, the fi shing year was defi ned as extending from October of one year to ... effort and bird by-catch data described in subse- quent sections of this paper. The estimate of the ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 119–141 : Autor(es): Agnew, D.J. and G.P. Kirkwood
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Notothenia (P.) guntheri stock status and TAC estimation in the area of Shag Rocks (Subarea 48.3)
Paper Title: Notothenia (P.) guntheri stock status and TAC estimation in the area of Shag Rocks ... (Subarea 48.3) Abstract / Description: Data on age composition of catches and fishing efforts for 1979/80 ... -1987/88 were used to analyse N. guntheri stock status. On the basis of these data using VPA method with ... -0.9 (Atlantic Fisheries Research Institute data). To estimate terminal value of instantaneous fishing ... TAC ESTIMATION IN THE AREA OF SHAG ROCKS (SUBAREA 48.3) K. Shust and R. Borodin Abstract Data ... on age composition of catches and fishing efforts for 1979/80-1987/88 were used to analyse N ... . guntheri stock status. On the basis of these data using V P A method with different adjustments stock ... Research Institute data). To estimate terminal value of instantaneous fishing coefficient (F) different ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 53-68 : Autor(es): Shust, K. and R. Borodin
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Observation of seabirds in the Southern Ocean in 1988/89
Paper Title: Observation of seabirds in the Southern Ocean in 1988/89 Abstract / Description ... : This paper examines the numerical and species distribution of birds in the sub-Antarctic area of the ... Southern Ocean to the south of 60°S. Thirty minute observations were made daily during daylight hours at 8 ... ports of call. Maps summarize the distribution of 14 bird species as well as of the individual species ... WG-CEMP-90/33 OBSERVATION OF SEABIRDS IN THE SOUTHERN ... species distribution of birds in the sub-Antarctic area of the Southern Ocean to the south of 600 S ... -time, while sailing between Antarctic stations and while en route to ports of call. Maps summarize the ... distribution of 14 bird species as well as of the individual species: Antarctic, snow, and cape petrels and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 521–542 : Autor(es): Vagin, A.V. and V.V. Popov
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A first step towards modelling the krill–predator dynamics of the Antarctic ecosystem
Paper Title: A first step towards modelling the krill–predator dynamics of the Antarctic ... ecosystem Abstract / Description: The history of human harvests of seals, whales, fish and krill in the ... hypothesis of a krill surplus in the mid-20th century is described, and the information on population and ... objective of the study is to determine whether predator–prey interactions alone can broadly explain observed ... hypoth- esis in this paper is that the effects of human- induced harvesting of the species in the ... major pred- ators in the Antarctic. The objective of this paper is thus to investigate the following ... first step towArds modelling the krill–predAtor dynAmics of the AntArctic ecosystem M. Mori MARAM ... (Marine Resource Assessment and Management Group) Department of Mathematics and Applied Mathematics ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 217–277 : Autor(es): Mori, M. and D.S. Butterworth
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On the intensity of sampling krill trawl catches
Paper Title: On the intensity of sampling krill trawl catches Abstract / Description: This paper ... uses actual krill length-frequency data in an attempt to address the problem of the determination of ... . The possible effect of two other factors (within-trawl variability and sample decomposition) which may ... measurements of length from commercial krill; catches should be made, as far as possible, by a single observer ... cost of sampling be found. This paper therefore uses actual krilllength-frequency data to address the ... WG-KRILL-90/27 ON THE INTENSITY OF SAMPLING KRILL TRAWL ... address the problem of the determination of adequate sample size to obtain representative krill length ... -frequency distributions from commercial catches. The possible effect of two other factors (within-trawl ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 29–48 : Autor(es): Miller, D.G.M.
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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 : Autor(es): Mugue, N.S., A.F. Petrov, D.A. Zelenina, I.I. Gordeev and A.A. Sergeev
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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 : Autor(es): Irvine, L.G., J.R. Clarke and K.R. Kerry
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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 : Autor(es): Boveng, P., J.L. Bengtson and M.E. Goebel
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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 : Autor(es): Agnew, D.J., T.M. Daw, G.M. Pilling and M.G. Purves