Search results

1. New data on depths inhabited by striped-eyed rock cod Lepidonotothen kempi (Norman) (Nototheniidae) off Bouvet Island

   Abstract:  In 2010 on the southern slope of Bouvet Island, I found L. kempi at still greater depth ... in the course of fishery for toothfish onboard of 1 Insung Korean longliner. In the first case ... , mature specimens with absolute length (TL) of 39–45 cm and weight of 0.8–1.3 kg were found in stomachs of ... Antarctic toothfish caught at depths of 1500–1900 m. In the second case at 54°32′7 S and 03°46′8 W, three ...

   Meeting Document : WG-FSA-11/P02 : Author(s): A.F. Petrov

2. Tagging larger toothfish, methods and equipment

   Abstract:  The current stock assessment in the Ross Sea (statistical Subareas 88.1 and 88.2) is ... of toothfish in this area is a mandatory requirement (Conservation Measure 41-01 Annex C). The Annex ... requires vessel to “target toothfish of all sizes in order to meet the tagging requirement”. This document ... Sanford Limited a major New Zealand fishing company in order to satisfy this requirement. These techniques ...

   Meeting Document : WG-FSA-07/36 : Author(s): J.M. Fenaughty (New Zealand)

3. Fecundity and egg size of Lithodid crabs from CCAMLR Subarea 48.3

   Abstract:  The fecundity and egg size of three species of lithodid crab caught in CCAMLR Subarea ... significantly between species. The highest relative fecundity and smallest egg size was found in Paralomis ... spinosissima which is found in shallower waters, whereas the lowest relative fecundity values and largest eggs ... were recorded in the deeper living species, Neolithodes diomedeae. In all species fecundity was ...

   Meeting Document : WG-FSA-02/27 : Author(s): S.A. Morley, M. Belchier, J.D. Dickson and T.M. Mulvey (United Kingdom)

4. Experimental acoustic estimation of bathypelagic fishes biomasses from the South Georgia and Shag Rock shelf areas with trawl sampling (RV Atlantida, February 1996)

   Abstract:  Experimental acoustic survey in shelf areas off South Georgia and Shag Rocks in CCAMLR ... stations location, catch length compostion, per cent proportion of various fish species in trawls samples ... , data of biological and oceanologica3 researches are presented. The data on target strengths obtained in ... - situ for icefish (Champsocephalus gunnari), the latter per cent proportion in trawl catches, velocity ...

   Meeting Document : WG-FSA-96/59 : Author(s): Sunkovich, V. Yu., Frolkina, G.A., Severin, V.A., Abramov, A.M., Yorobyov, V.M., Polischuk, M.I., Bukatin, P.A., Shnar, V.N.

5. Penguin monitoring via remote sensing

   efforts in using remote sensing techniques for improved monitoring of environment and climate changes in ... general possibilities of a penguin monitoring in the Antarctic Treaty area based on remote sensing ... techniques. In order to stimulate and formalize this discussion, Germany proposes to open an Intersessional ... Secretariat website and invites CCAMLR to participate in this process. Author(s):  H. Herata and F. Hertel ...

   Meeting Document : WG-EMM-12/71 : Author(s): H. Herata and F. Hertel (Germany)

6. Short note on time series of Drake Passage Oscillation Index (DPOI) and its influence on environmental variability

   Abstract:  An assessment of the environmental processes influencing variability in the recruitment ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... affects the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability in ... krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of ...

   Meeting Document : WG-EMM-07/14 : Author(s): M. Naganobu and K. Kutsuwada (Japan)

7. Estimating the abundance of pack-ice seals off east Antarctica

   leopard seal populations in 1,500,000 km2 of pack-ice off east Antarctica between longitudes 60-150oE ... helicopters to estimate the density of seals hauled out on the ice in survey strips. The probability of ... detecting seals in survey strips was estimated using double observer line transect methods, and satellite ... extrapolate estimated densities in surveyed areas to the entire survey region. Estimating uncertainty in ...

   Meeting Document : WG-EMM-05/23 : Author(s): C. Southwell (Australia), D. Borchers, C. Paxton (United Kingdom), B. de la Mare (Canada), P. Boveng (USA), A.S. Blix and E.S. Nordoy (Norway)

8. An attempt to derive a composite index of abundance from acoustic surveys and fishery data

   distribution of fishing effort in the Chilean krill fishery indicate an area of high krill density wrapping ... around the northwestern end of Elephant Island during the austral summer of 1992. In this area, the ... . In addition, the data suggest that the abundance of krill in the Elephant Island area can change ... rapidly, and when krill do come into to the area they are most often found in water 100m-500m depth along ...

   Meeting Document : WG-Krill-94/14 : Author(s): R.P. Hewitt (USA), V. Marín (Chile) and D. Demer (USA)

9. MaxEnt reconstructions of krill distribution and estimates of krill density from acoustic surveys at South Georgia 1996–2000

   gathered in the boxes in austral summers 1996 – 2000. Krill densities had previously been determined at ... approximately 0.5 km intervals along transect for each of the ten 80 km transects in each box, providing about ... probable krill density for each of the 32000 0.5 km x 0.5 km cells in each survey box, taking explicit ... account of the spatial relationship between densities in the observed data. Despite some very large ...

   Meeting Document : WG-EMM-02/36 : Author(s): M.H. Wafy, A.S. Brierley, S.F. Gull and J.L. Watkins (United Kingdom)

10. IDENTIFICATION OF DATA QUALITY METRICS FOR TAGGING DATA SELECTION

    quality metrics may be most powerful in distinguishing the trips considered to have good tagging data ... . These include metrics for taxonomic resolution in the observer data, goodness of fit of catch data to ... Benford's Law, and the variation in toothfish catch rates.This reduced set of data quality metrics ... could be helpful in the identification of trips which have similar data quality to the known “good data ...

    Meeting Document : WG-SAM-09/19 : Author(s): D.A.J. Middleton and A. Dunn (New Zealand)

Pages