Résultats de la recherche
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Age determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula subarea (Subarea 48.1)
Paper Title: Age determination of Notothenia gibberifrons from the South Shetland Islands ... Potter Cove, 25 De Mayo/King George I.). Samples consisted of small and medium sized fish (total length ... scale readings gave a result of one year more. This could arise from the difficulty in differentiating ... previously for specimens of South Bay, Palmer Archipelago. Possible reasons for these differences are ... species. Up to now several papers have been published on the age and growth of N. gibberifrons. Kock et ... of this paper is to contribute new data on age and length of N. gibberifrons from the South Shetland ... , sagittal otoliths and scales of Potter Cove specimens were extracted, cleaned, dried and stored in paper ... WG-FSA-88/15 AGE DETERMINATION OF NOTOTHENIA ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 143-160 : Auteur(s): Barrera-Oro, E.
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Status of krill target strength
Paper Title: Status of krill target strength Abstract / Description: Empirical estimates for the ... target strength of krill are extracted from publications. These are confined to measurements on ... aggregations of live euphausiids and should not be affected by a frequent cause of bias in single-animal ... -cylinder scattering model assuming specific sets of physical and orientational parameters, for which there ... thresholding. The organisation of this paper is the following. The quantities of target strength, back ... WG-KRll.L-92/11 STATUS OF KRILLTARGET STRENGTH K.G ... . Foote1, D. Chu2 and T.K. Stanton2 Abstract Empirical estimates for the target strength of krill are ... extracted from publications. These are confined to measurements on aggregations of live euphausiids and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 101–126 : Auteur(s): Foote, K.G., D. Chu and T.K. Stanton
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Variations in echosounder calibration with temperature, and some possible implications for acoustic surveys of krill biomass
implications for acoustic surveys of krill biomass Abstract / Description: Accurate estimation of krill ... biomass by acoustic techniques is dependent on a number of factors of which one of the most fundamental is ... S v transducer gains at South Georgia (sea temperature at depth of transducer = 2.3 o C) were on ... were taken of the differences in gain settings, then integrated 120 kHz echo signals would be under ... OF KRILL BIOMASS A.S. Brierley, C. Goss, J.L. Watkins and P. Woodroffe British Antarctic Survey ... Abstract Accurate estimation of krill biomass by acoustic techniques is dependent on a number of factors ... of which one of the most fundamental is accurate echosounder calibration. The Simrad EK500 ... (sea temperature at depth of transducer = 2.3'C) were on average 1.4 dB less than in European waters ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 273–281 : Auteur(s): Brierley, A.S., C. Goss, J.L. Watkins and P. Woodroffe
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Evaluating the impact of multi-year research catch limits on overfished toothfish populations
Paper Title: Evaluating the impact of multi-year research catch limits on overfished toothfish ... populations Abstract / Description: In stocks that have been depleted by overfishing, the benefit of ... may contribute to delaying or preventing the recovery of such stocks. Through simulating a Patagonian ... toothfish (Dissostichus eleginoides) stock that has been subjected to varying levels of overfishing and ... . Selected Scientific Papers, 1990 (SC-CAMLR-SSP/7). CCAMLR, Hobart, Australia: 467–475. Delegation of ... ; they were considered to be below 20% of median spawning stock biomass prior to fishing (SSB0). For ... example, very high levels of illegal, un- regulated and unreported (IUU) fishing on Ob and Lena Banks ... (estimated to have caught 7 086 tonnes of Patagonian toothfish (Dissostichus eleginoides) between 1996 and ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 47–55 : Auteur(s): Welsford, D.C
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The foraging range of Adélie penguins – implications for CEMP and interactions with the krill fishery
Paper Title: The foraging range of Adélie penguins – implications for CEMP and interactions with ... the krill fishery Abstract / Description: This paper presents a summary of the foraging locations of ... coast of eastern Antarctica between 55 o E (Enderby Land) and 175 o E (Ross Sea). Adélie penguins ... , Euphausia superba. Locations of penguins on foraging trips were compared with historical records of fine ... paper presents a summary of the foraging locations of Adelie penguins, determined by satellite tracking ... OF ADELIE PENGUINS - IMPLICATIONS FOR CEMP AND INTERACTIONS WITH THE KRILL FISHERY K.R. Kerry, J.R ... . Thomson Department of Zoology, University of Cape Town Rondeboscl~ 7700, South Africa Abstract This ... , at seven widely-spaced breeding colonies along the coast of eastern Antarctica between 55"E (Enderby ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 75–87 : Auteur(s): Kerry, K.R., J.R. Clarke, S. Eberhard, H. Gardner, R.M. Lawless, S. Corsolini, S. Focardi, E. Franchi, D. Rodary and R. Thomson
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Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric characteristic?
index of a morphometric characteristic? Abstract / Description: In sexually dimorphic species ... discriminant analysis can be used to determine the sex of individuals, it is only able to correctly sex a ... certain proportion of birds. Two overlapping normal distributions are used to show that there is a ... using discriminant analysis. When discriminant functions are able to correctly determine the sex of ... to combine males and females for the calculation of an index. This paper evaluates the suggestion ... part of this paper that using a discriminant function that correctly identifies the sex of >80% of ... discriminant analysis of morphometric measurements. Selected Scientific Papers, 1990 (SC-CAMLR-SSP/7). CCAMLR ... TO SEX PENGUINS PRIOR TO CALCULATING AN INDEX OF A MORPHOMETRIC CHARACTERISTIC? D.J. Agnew ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 259–272 : Auteur(s): Agnew, D.J.
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Diet of the Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (Subarea 88.1)
Paper Title: Diet of the Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica ... (Subarea 88.1) Abstract / Description: The diet of Antarctic toothfish (Dissostichus mawsoni) captured by ... stomachs examined respectively). Fish sampled in 2001 were caught at depths of 317 to 2 154 m and ranged ... from 58 to 190 cm in total length (TL). Fish sampled in 2002 were caught at depths of 815 to 1 623 m ... . 10 (2003): 113–123 113 DIET OF THE ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) FROM THE ROSS SEA ... Zealand Email – jmfenaughty@clear.net.nz D.W. Stevens National Institute of Water and Atmospheric ... , Nelson New Zealand Abstract The diet of Antarctic toothfi sh (Dissostichus mawsoni) captured by bottom ... examined respectively). Fish sampled in 2001 were caught at depths of 317 to 2 154 m and ranged from 58 ...
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
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Distribution characteristics of krill aggregations in the fishing ground off Coronation Island in the 1989/90 season
Paper Title: Distribution characteristics of krill aggregations in the fishing ground off ... Coronation Island in the 1989/90 season Abstract / Description: Distributional characteristics of krill ... biological condition of krill and the performance of the fishery. Investigations were carried out from ... October 1989 to February 1990. An echo sounder was used to assess the characteristics of krill ... in most of these papers have been obtained as a result of scientific programs such as FIBEX and ... WG-KRILL-90/20 DISTRIBUTION CHARACTERISTICS OF KRILL ... . Latogursky* * Abstract Distributional characteristics of kriU aggregations in the Coronation Island ... fishing ground were examined in relation to environmental factors, the biological condition of krill and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 49–73 : Auteur(s): Kasatkina, S.M. and V.I. Latogursky
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The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species
for the recovery of depleted populations in food webs supporting fisheries. This paper addresses the ... the relative influence of fished species on those estimates. The paper describes the steps required to ... predators of fished species Abstract / Description: Managing fisheries to achieve ecosystem objectives is ... of fished species, and (iii) what approaches could be considered for achieving the conservation ... aim of this paper is to examine the mech- anisms needed to achieve that part of Article I1 of the ... APPROACH TO MANAGING FISHERIES: ACHIEVING CONSERVATION OBJECTIVES FOR PREDATORS OF FISHED SPECIES A.J ... implementation of ecosystem objectives for managing a variety of aquatic and terrestrial habitats is widely ... (Mange1 et al., 1996). Since its inception, CCAMLR has grappled with the problems of applying an ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 37–64 : Auteur(s): Constable, A.J
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Location and intensity of the Soviet krill fishery in the Elephant Island area (South Shetland Islands), 1988/89
Paper Title: Location and intensity of the Soviet krill fishery in the Elephant Island area ... from 21 November 1988 to 25 March 1989. Although the total catch of the USSR in this season reached a ... low. In 1988/89 only one standard fishing vessel operated in the area over 40% of the time. The ... highest catch-per-unit-effort was observed in January 1989 (7.7 tonnes per hour of trawling on average ... WG-CEMP-92/30 LOCATION AND INTENSITY OF THE SOVIET ... 1989. Although the total catch of the USSR in this season reached a maximum, for the last nine ... standard fishing vessel operated in the area over 40% of the time. The highest catch-per-unit- effort was ... observed in January 1989 (7.7 tonnes per hour of trawling on average), and the lowest in November 1988 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 305–335 : Auteur(s): Sushin, V.A. and A.S. Myskov