Search results
-
Analysis of gear loss by fishing vessels in the CCAMLR Convention Area as contribution to the marine debris program
Abstract: CCAMLR has monitored marine debris in the Convention Area since the establishment of ... vessels be included in annual updates on marine debris. Rates of hook loss in longline fisheries revealed ... there was a higher proportion of gear loss in areas where interactions with sea-ice are more likely. To ... improve collection of data on gear loss it is recommended that the C1 data form be modified to include ...
Meeting Document : WG-FSA-18/17 : Author(s): CCAMLR Secretariat
-
GROUNDFISH SURVEY IN CCAMLR SUB-AREA 48.3 IN APRIL 2008 WITH PRELIMINARY ASSESSMENT OF MACKEREL ICEFISH
Abstract: In April 2008 the UK undertook a bottom trawl survey of CCAMLR Sub-Area 48.3 on the FV ... sea-floor areas and adjusting this for the low headline height of the UK trawl (see CCAMLR WG-FSA ... (2003), the biomass of mackerel icefish was estimated to be 80,426 tonnes, with a lower 1-sided 95% CI ... of 30,050. Catch-weighted length frequencies indicated that icefish population was dominated by 2 ...
Meeting Document : WG-FSA-08/28 : Author(s): M.A. Collins, R.E. Mitchell, C.E. Main, J. Lawson, J. Watts, J. Slakowski, L. Featherstone and O. Rzewuski (UK)
-
Statement of Conservation Measure 32/x
Author(s): Head of Delegation of the Republic of Korea Title: Statement of Conservation Measure ...
Meeting Document : CCAMLR-X/BG/26 : Author(s): Head of Delegation of the Republic of Korea
-
Deployment of research hauls in the exploratory fisheries for Dissostichus spp. in Subareas 48.6 and 58.4 in 2009/10
were positions were specified in Conservation Measure 41-07). For each of the 12 notifying vessels, up ... required to complete 5 research hauls in each stratum (total of 10 research hauls per SSRU). In all, 1133 ... starting positions were allocated for 84 vessel-SSRU combinations. As of June 2010, three vessels had ... fished in these exploratory fisheries in 2009/10, and had deployed a total of 129 research hauls in ...
Meeting Document : WG-SAM-10/04 : Author(s): Secretariat
-
A critical issue for feedback management – how do we determine the level of functional overlap between krill fishing operations and penguin foraging activity?
Abstract: The spatial distribution of the Antarctic krill fishery in Subareas 48.1 to 48.3 has ... changed over time. The majority of catches in Subarea 48.1 are now taken south of the South Shetland ... Islands, following regional decreases in seasonal sea-ice cover. As the cumulative spatial footprint of ... the fishery has expanded along the West Antarctic Peninsula, the cumulative numbers of krill-eating ...
Meeting Document : WG-EMM-15/11 : Author(s): P.N. Trathan, J.R.D. Silk, S.L. Hill (United Kingdom) and H.J. Lynch (USA)
-
Identification of squid echoes in the south Atlantic
Abstract: During a research cruise of the British Antarctic Survey ship RRS James Clark Ross in ... February 1996, a substantial number of the ommastrephid squid, Martialia hyadesi, were caught in a pelagic ... gathered during this haul and a survey of the immediate vicinity, in order to characterise an acoustic ... signature that may be used to identify this species of squid. Author(s): Rodhouse, P., Goss, C., Brierley ...
Meeting Document : WG-EMM-97/26 : Author(s): Rodhouse, P., Goss, C., Brierley, A., Watkins, J.
-
A new method for the measurement of Antarctic krill Euphausia superba Dana from predator food samples
Abstract: Regression functions of total length on carapace length and total length on removed ... carapace length were calculated for Antarctic krill Euphausia superba Dana for those classes of sex and ... maturity stage which can be discriminated in predator food samples. The use of removed carapace length as a ... predictor of total length is highly recommended for animals where total length measurement would be ...
Meeting Document : WG-CEMP-90/40 : Author(s): H.J. Hill (United Kingdom)
-
Comments on the development of a Dissostichus mawsoni Population Hypothesis for Area 48. Proposals on the WS-SM-18 advice to the to the Scientific Committee and its Working Group
Abstract: Taking into account the results of the WS-DmPH workshop (Berlin, 2018), proposals are ... being considered to obtain actual adequate data for the development of a hypothesis on the Dissostichus ... mawsoni life history and to facilitate the assessment of its stock in Area 48. Author(s): Delegation of ... the Russian Federation Title: Comments on the development of a Dissostichus mawsoni Population ...
Meeting Document : WS-SM-18/09 : Author(s): Delegation of the Russian Federation
-
Abundance and trends of Type B killer whales (Orcinus orca) around the western Antarctic Peninsula
impact of these physical changes on the marine ecosystem. The WAP is surrounded by a complex marine food ... web involving a number of predator and prey populations, and empirical data on abundance and trends is ... ecotypes (Types B1, B2 and A). Here we report on the movement patterns and abundance of both forms of Type ... , B2 = 13,621 photographs) to estimate abundance in the coastal waters of the WAP during austral ...
Meeting Document : WG-EMM-18/16 : Author(s): H. Fearnbach, J.W. Durban, D.K. Ellifrit and R.L. Pitman
-
Estimating penguin populations using image analysis of colour aerial photography
Abstract: Penguin populations are potentially sensitive indicators of change in the Antarctic and ... colonies, for colonies in areas of complex terrain, or for colonies where ground access is difficult ... of a computer based image analysis of digitally scanned colour aerial photographs of macaroni penguin ... : Estimating penguin populations using image analysis of colour aerial photography Approval: Approved ...
Meeting Document : WG-EMM-02/34 Text : Author(s): P.N. Trathan (United Kingdom)