Search results
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An overview of Southern Ocean zooplankton data: abundance, biomass, feeding and functional relationships (submitted to the 2008 Joint CCAMLR-IWC Workshop)
; Ward and Shreeve, 1995) with 3.4–3.8% of their body C lost via respiration. This fits broadly ... between the Antarctic sectors, but latitudinally it is maximal in the Polar Frontal Zone and declines to ... for differences in the extent of identification of early larval stages. Likewise, the time of year ... in size structure and abundance. Other issues are specific to polar environments, for example, lipid ... in global literature compilations. Likewise, stenothermy (narrow temperature tolerance) means that ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 171–218 : Author(s): A. Atkinson, P. Ward, B.P.V. Hunt, E.A. Pakhomov and G.W. Hosie
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The role of fish as predators of krill (Euphausia superba) and other pelagic resources in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop)
consumed by demersal fish must have declined substantially after commercial fishing from the late 1960s ... ) for the Indian sector and the eastern Ross Sea. These were derived from samples Kock et al. 122 collected ... resources in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop) Abstract / Description ... of fish as krill predators in the Southern Ocean is critical to understanding how changes in fish ... abundance, such as through fishing or environmental change, are likely to impact on the food webs in the ... region. First attempts to estimate the krill and pelagic food consumption by Antarctic demersal fish in ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 115–169 : Author(s): Kock, K.-H., E. Barrera-Oro, M. Belchier, M.A. Collins, G. Duhamel, S. Hanchet, L. Pshenichnov, D. Welsford and R. Williams
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Performance and geometry of the FP-120 trawl used during UK fish stock assessment surveys around South Georgia, Subarea 48.3
, the mini-transponder was lost on the first trawl on which it was deployed. Additionally, as trawl ... transducer mounted in the middle of the headline during the tow. This measurement can be used to estimate ... opening (and, thus, swept area) of a bottom trawl are discussed. In situ measurements of the FP-120 trawl ... compared to values obtained from a previous equation. The resulting difference in biomass estimates is of ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 51–69 : Author(s): Pilling, G. and G. Parkes
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CCAMLR ecosystem monitoring and management: future work
: Harvesting of marine living resources in the Southern Ocean is managed by the Commission for the Conservation ... managing fisheries with the maintenance of ecological relationships included in the conservation objectives ... . In the late 1980s, CCAMLR’s precautionary approach was developed, incorporating principles of how to ... use scientific evidence in the decision-making process. Even though this approach was based on the ... @antdiv.gov.au Abstract Harvesting of marine living resources in the Southern Ocean is managed by the ... included in the conservation objectives. In the late 1980s, CCAMLR’s precautionary approach was developed ... , incorporating principles of how to use scientifi c evidence in the decision-making process. Even though this ... account of the needs of predators in the assessment of catch limits. The success of this process is due ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 233–253 : Author(s): Constable, A.J
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Improving estimates of Adélie penguin breeding population size: developing factors to adjust one-off population counts for availability bias
ImprovIng estImates of adélIe penguIn breedIng populatIon sIze: developIng factors to adjust one-off ... ) to undertake a foraging trip of around 17 days duration (Emmerson et al., 2003). Non-breeders and failed ... undertakes a short foraging trip. During this guard phase, many non-breeding birds return to breeding sites ... Eastern Antarctica. In that work, site-specific adjustment factors are deter- mined by appropriately ... presented for the collection and development of data to adjust counts of Adélie penguins made at any time in ... point one week after the peak in egg laying, consistent with Standard Method A3 of the CCAMLR Ecosystem ... illustrated using data collected at the Béchervaise Island CEMP site in 2007/08. Estimates of the breeding ... , breeding-age penguins that failed to return to the breeding site in that breeding season, nor pre-breeding ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 229–241 : Author(s): Southwell, C., J. McKinlay, L. Emmerson, R. Trebilco and K. Newbery
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Distribution and relative abundance of Antarctic toothfish (Dissostichus mawsoni) on the Ross Sea shelf
, the word ‘season’ refers to the period from December to May, the months of fish- ing in the middle ... covering the eastern Ross Sea. These subareas are further divided into SSRUs for the purposes of finer ... of the fish caught in the south of SSRUs 882A and 882B on the eastern Ross Sea shelf was also plotted (see ... been taken mainly in depths greater than 800 m from three localised fishing grounds of deep water off ... Terra Nova Bay, Ross Island, and in the south of small-scale research unit (SSRU) 881L (adjacent to the ... in the southern Ross Sea were sub-adult and maturing fish, typically ranging from 60–130 cm in length ... available, there is no evidence for a northward contraction in the range of D. mawsoni over the course of ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 33–51 : Author(s): Hanchet, S.M., S. Mormede and A. Dunn
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Sensitivity analysis for parameters of predatory species CCAMLR Ecosystem Monitoring Program
at breeding colonies; duration of first incubation shift; duration of adult foraging trips; breeding success ... at breeding colonies; duration of first incubation shift; duration of adult foraging trips; breeding ... shift; • duration of adult foraging trips; • breeding success; and • chick fledging weight. Resume ... ). This parameter is considered likely to be sensitive to variable food availability during the foraging trip ... of Foraging Trips This parameter is considered sensitive to the availability of food during the foraging ... trip. The CCAMLR Standard Methods Sheets indicate that changes in this parameter can only ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 411–432 : Author(s): Whitehead, M.D.
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Factors to consider in developing management measures for krill
be an article of faith that the use of the condition factor as a decision parameter in a management procedure ... Paper Title: Factors to consider in developing management measures for krill Abstract ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 175–187 : Author(s): de la Mare, W.K.
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Preliminary results of investigations of the Federal Republic of Germany on Notothenia rossii marmorata (Fischer, 1885) in January/February 1985
the onset ot large scale commercial exploitation at Lhf> end of the 1960s Lhe c-,pecies 1,>as probably one ... pr12dominated (h_g, IJ). Minimum length waa 34 cm. No spec.imPn larger -chan .'i8 c.in had been obser- veJ ... Notothenia rossii marmorata (Fischer, 1885) in January/February 1985 Abstract / Description: A bottom trawl ... survey carried out by FRV " Walther Hervig " in January/February 1985 was used to collect ... rebuild the stock around South Georgia might be successful. Although reported catches in recent years have ... probably still less than 10% of the pristine stock, Mean length in the catches has only slightly increased ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 33-57 : Author(s): Kock, K.-H.
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The biology, ecology and development of fishery management advice for the anomuran crabs at South Georgia (CCAMLR Subarea 48.3)
limits In the 1991/92 season data from an initial 22-day trip of the US vessel FV Pro Surveyor ... during the initial 22-day trip had smaller carapace widths than 90 mm. Minimum carapace width limits ... of the development of a management regime for them. Finally it aims to highlight areas in which ... further research should be directed in order to provide information on which to base the most appropriate ... assessment and management methods in light of continuing interest in the regional crab fishery. Considerable ... gaps in our knowledge of the biology, ecology and demography of the lithodid species at South Georgia ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 1–15 : Author(s): Belchier, M., T. Peatman and J. Brown