Resultados de la búsqueda
-
Beach debris survey, Signy Island, South Orkney Islands 2000/2001
size categories. A total of 16 items weighing 0.74kg was collected. The number of items and the total ... mass of the waste recovered was the lowest ever recorded (a decrease of 70% and 93% since 1999/2000 ... respectively). The number of plastic packaging bands (one) was also the lowest ever recorded and follows a ... Signy Island has been showing a declining trend since 1993/94. The longevity of plastics and other ...
Meeting Document : SC-CAMLR-XX/BG/05 : Autor(es): Delegation of the United Kingdom
-
Marine debris collected at Cape Shirreff during the Antarctic season 2000/01
/2001. All debris were collected once a month during January and February 2001 from 36 places, just when ... categories: Plastic, metal, glass, and paper. A total of 1,774 articles was studied, with a weight of 124, 5 ... , were total or partially oiled, as well as a single wing of a kelp gull Larus dominicanus, and as it ... were identified as of Korean origin (3.6%) including several printed plastic bands, corresponding to a ...
Meeting Document : SC-CAMLR-XX/BG/25 : Autor(es): Delegation of Chile
-
OPERATIONAL DIFFICULTIES IN IMPLEMENTING THE CCAMLR TAGGING PROTOCOL IN DIVISION 58.4.1 IN 2007/08
a high mortality rate of fish on these lines; only fish with a high chance of survival were tagged ... closed on 30 January 2008). • The vessel caught a total of 9.757 t of Dissostichus mawsoni in Division ... fish in Division 58.4.1 at the rate required by CCAMLR. As a result, the vessel made every effort to ... tagged fish at a rate of 4.9 fish/tonne; • in Division 58.4.3b the vessel tagged fish at a rate of 4.6 ...
Meeting Document : WG-FSA-08/16 : Autor(es): A.T. Lozano and O. Pin (Uruguay)
-
UPDATED PRELIMINARY RESULTS OF AN ECOLOGICAL RISK ASSESSMENT FOR SEABIRDS AND MARINE MAMMALS WITH RISK OF FISHERIES INTERACTIONS
Abstract: We examined a methodology for assessing potential risk of interactions between ... fisheries and species of special interest (seabirds and marine mammals) by applying a Productivity ... -Susceptibility Analysis to a data set of species distribution, biological information and fishing effort. This ... of species interactions is clustered with greatest likelihood in a few species, where there is ...
Meeting Document : WG-FSA-08/51 : Autor(es): S. Waugh, D. Filippi, N. Walker (New Zealand) and D.S. Kirby
-
Potentially commercial invertebrates on Ob Bank: Moroteuthis ingens (Oegopsida) and Paralomis aculeata (Anomura) (Division 58.4.4)
Abstract: The cephalopods of the Antarctic are supposed to have a very high biomass level However ... that target searching and fishing for Moroteuthis ingens with a midwater trawl over the seamaunts in ... countries of the CCAMLR, especially in view of the development of experimental fishing by a U.S. vessel on ... Antarctic are but insufficiently known. The Anomura faune on Ob Bank is represented by a single species ...
Meeting Document : WG-FSA-96/15 : Autor(es): Pshenichnov, L.K.
-
Report on scientific observations onboard the Chilean longliner, ‘Puerto Ballena’, in Statistical Subarea 48.3 from March to May 1996
D. eleginoides, the estimation of the finfish by-catch, the estimation of a conversion factor of ... females with males becoming mature at a much smaller length. Black-browed albatrosses and white-chinned ... % of the longlines were set during daylight hours. Consequently, black-browed albatrosses made up a ... considerable portion of the seabird by-catch. A by-catch of 159 dead seabirds was reported by the scientific ...
Meeting Document : WG-FSA-96/22 : Autor(es): Selling, J., Kock, K.-H.
-
Hydroacoustic surveys of the distribution and abundance of krill: Prydz Bay region – FIBEX, ADBEX II and SIBEX II
-84 and 1984-85. The surveys included a total of 25 transects and covered a distance of 22 500 km over ... program. The results of the surveys and a discussion of the theory and methods employed including sources ... abundance (biomass) of krill in the Prydz Bay region as a whole and the weight density of krill along each ... cruise track is presented in graphical form. These data demonstrate a patchy density distribution with ...
Meeting Document : SC-CAMLR-VII/BG/40 : Autor(es): Delegation of Australia
-
Development of methods for evaluating the management of benthic impacts from longline fishing using spatially explicit production models
vulnerable marine ecosystems (VMEs). We describe a spatially explicit production model that can be used to ... investigate a range of simple scenarios for simulating the effect and management of benthic impacts from ... longline fishing effort. Simulations were carried out under a range of productivity assumptions, impact ... simulated considered a range of areal closure radii and bycatch trigger thresholds. We conclude that ...
Meeting Document : WG-SAM-10/19 : Autor(es): A. Dunn, S.J. Parker and S. Mormede (New Zealand)
-
The annual random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2012
. A codend liner, usually in place for the entire survey, was used only in the icefish strata, Gunnari ... Ridge, Plateau Southeast and Plateau West, and in a repeat of the hauls in Ground B. Catches in this ... those of 2011 and about one and a half times higher than the long-term average. Champsocephalus gunnari ... Lepidonotothen squamifrons was four times higher than the average. A slightly higher than average weight of ...
Meeting Document : WG-FSA-12/25 : Autor(es): G.B. Nowara and T. Lamb (Australia)
-
An assessment of the use of ocean gliders to undertake acoustic measurements of zooplankton: the distribution and density of Antarctic krill in the Weddell Sea
Abstract: A calibrated 120 kHz single-beam echo-sounder was integrated into an ocean glider and ... the distribution of Antarctic krill (Euphausia superba). During the glider missions, a research vessel ... undertook acoustic transects using a calibrated, hull-mounted, multi-frequency echo-sounder. Net hauls were ... a thresholded schools analysis technique (SHAPES), and acoustic data were converted to krill density ...
Meeting Document : WG-EMM-14/P02 : Autor(es): D. Guihen, S. Fielding, E. Murphy, K. Heywood and G. Griffiths