Search results
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Detection of growth zones in the eyestalk of the Antarctic krill Euphausia superba (Dana, 1852) (Euphausiacea)
narrower growth zones from the third zone and onwards compared with males. Data show that male subadult ... increased with increasing body length, although there were differences between sexes. Females tended to have ... and a verification of the ageing procedure from krill with a known age is needed before the number of ... growth zones can be definitely established as an indicator of age. The detection of growth zones in the ...
Meeting Document : WG-EMM-16/P02 : Author(s): B.A. Krafft, M. Kvalsund, G. Søvik, E. Farestveit and A.-L. Agnalt
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A scheme for mapping Antarctic seafloor geomorphology to aid benthic bioregionalisation
Abstract: Publicly available bathymetry and geophysical data can be used to map geomorphic ... geomorphic features identified and their properties can be related to major habitat characteristics such as ... regimes. Where more detailed data are available, comparisons with the geomorphic features mapped in this ... study show that they can provide a guide to the distribution in the area of shelf benthic communities ...
Meeting Document : WS-BSO-07/8 : Author(s): P. O’Brien (Australia)
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Summary of toothfish tagging suitability data from paired Spanish line – trotline sets
only tag fish with a high probability of survival. Further it recommends that fish hooked only in the ... mouth should be tagged. A new data collection form was implemented in 2012 to allow evaluation of fish ... suitable fish were available to tag. Further data collection from sets with different gear configurations ... and operational effects would be useful in a multivariate analysis to identify the factors affecting ...
Meeting Document : WG-FSA-12/49 : Author(s): S. Parker and D. Fu (New Zealand)
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Herpes virus antibodies in Arctocephalus gazella from Cape Shirreff, Livingston Island, Antarctica
Abstract: This paper describes evidence of antibodies against a virus related with ... Alphaherpesvirinae sub-family, potentially a phocine herpesvirus (PhHV-1) that affect Antarctic Fur Seals ... with the knowledge confirming the extended distribution range of herpesvirus, affecting a large number ... research on diseases in Antarctic wildlife, considering it interesting to be discussed in the WG-EMM agenda ...
Meeting Document : WG-EMM-01/59 : Author(s): O. Blank, J.M. Montt, M. Celedón and D. Torres (Chile)
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CCAMLR ecosystem monitoring program standard methods: determination of sex of Adelie penguins
Abstract: The suggestion that sex of Adélie penguins, Pygoscelis adeliae, might be assigned by ... and peak presence of females after 33–36 days from this date. In all three seasons male birds could be ... identified with 91∙8–98∙6% accuracy within 15–21 days after the first sighting of an egg. The method provides ... , therefore, a means of identifying the sex of Adélie penguins with an accuracy greater than 90% and is ...
Meeting Document : WG-CEMP-94/08 : Author(s): K.R. Kerry, J.R. Clarke and G.D. Else (Australia)
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Proposal of extension of research block 48.6_2 to complete planned research and examine the habitat model and the stock structure
its southeastern bank (south of ca. 55.2°S) with higher fish densities but scarce in the northern area ... with lower fish densities, and it has not taken approximately 50-70% of the annual catch limit (CL=170 ... completion of planned research and examination of the habitat model and the stock structure. Author(s): T ... . Namba, T. Ichii and K. Taki Title: Proposal of extension of research block 48.6_2 to complete planned ...
Meeting Document : WG-SAM-16/08 : Author(s): T. Namba, T. Ichii and K. Taki
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Distribution of mackerel icefish (Champsocephalus gunnari) (Channichthyidae) around South Georgia at various stages of its life cycle
. During this period C. gunnari undertakes diurnal vertical migrations into pelagic waters, being found ... in the Shag Rocks area (Frolkina, 2001). The eastern group differs signifi cantly from the western group ... (excluding the spawning period). At that time the two groups mix. In general, the largest fi sh ... , 2001). For reasons as yet unknown, this could be linked to an absence of fi sh migration from ... fish were found to be distributed throughout the water column at all times of the day, but they also ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 49–69 : Author(s): Frolkina, Zh.A
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Review of CCAMLR activities on monitoring marine debris in the Convention Area
removed from packages. So it is a concern that packaging bands are being found during beach surveys ... at Bird Island and Signy Island and that Antarctic fur seals are being reported as entangled at Bird ... incinerating them yet closed packaging bands are still being reported as debris from Bird Island. The level ... it is a concern that packaging bands are being found during beach surveys at Bird Island and Signy Island ...
Meeting Document : SC-CAMLR-XXVI/BG/10 : Author(s): Secretariat
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Progress towards a trophic model of the ecosystem of the Ross Sea, Antarctica, for investigating effects of the Antarctic toothfish fishery
is a low primary production system, with production being localised in space and time. In the relative ... primary production system, with production being localised in space and time. In the relative absence ...
Meeting Document : WG-EMM-06/14 : Author(s): M. Pinkerton, S. Hanchet and J. Bradford-Grieve (New Zealand)
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A review of methodologies aimed at avoiding and/or mitigating incidental catch of protected seabirds.
interactions with fishing gear in New Zealand fisheries and fisheries that operate using similar methodologies ... are likely to be the most effective regime at this point to mitigate seabird interactions with the ... required, and even within a fishery there is likely to be individual vessel refinement of mitigation ... paired bird-scaring lines, line-weighting and night-setting (in some fisheries). Along with offal and ...
Meeting Document : WG-FSA-05/P8 : Author(s): Bull, L.