Search results
-
Hydroacoustic data obtained around Elephant Island and South Orkney Islands during austral summer 2018
of 2018 as a complement to finfish research in Subareas 48.1 and 48.2 using bottom trawling nets. The ... acoustic information survey was carried out with a SIMRAD EK80 wide band scientific echosounder at a ... frequency of 38 kHz and a SIMRAD ES70 fishing echosounder equipped with a 120 kHz frequency transducer. The ...
Meeting Document : WG-FSA-18/05 : Author(s): N.A. Alegría and P.M. Arana
-
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 : Author(s): Delegation of Chile
-
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 : Author(s): 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 : Author(s): 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 : Author(s): 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 : Author(s): D. Guihen, S. Fielding, E. Murphy, K. Heywood and G. Griffiths
-
The orderly development of the krill fishery
, such a large increase required the inclusion of other elements in the conservation measure to ... establish a catch limit before fishing is prosecuted in these areas. o Small-scale management units be ... established to minimise localised impacts on krill predators prior to a threshold being reached. o A threshold ... ). o A program to monitor and observe krill catch and by-catch be developed. o Vessels carrying krill ...
Meeting Document : CCAMLR-XXVI/30 : Author(s): Delegation of Australia
-
Monitoring marine debris and its impact on marine living resources in Antarctic waters
of Antarctic Marine Living Resources (CCAMLR) in response to a request from CEP-IV for information on ... , paragraph 19). A number of measures have been adopted and implemented by CCAMLR to monitor and assess the ... have been initiated at a number of sub-Antarctic and Antarctic sites. These programs include surveys of ... with a standard method. Standard forms have been created for the collection and submission of data from ...
Meeting Document : SC-CAMLR-XX/BG/16 : Author(s): Secretariat
-
Assessment of yield and status of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean: implications for managing by-catch in CCAMLR fisheries
data were taken from a trawl survey conducted at Macquarie Island in 1999. Where parameters were not ... long-term annual yield calculated for M. carinatus was 550 tonnes, based on a critical value of y of ... of the median pre-exploitation spawning biomass. This assessment could be used as a basis for setting ... critical y to the mean density observed in the survey results gives a catch rate of 5.81 kg/km2 which ...
Meeting Document : WG-FSA-99/69 : Author(s): E.M. van Wijk, A.J. Constable, R. Williams and T. Lamb (Australia)
-
30 years of krill fisheries management – challenges remain
sector, an area that has been warming rapidly, resulting in a reduction in the extent and duration of ... winter sea ice. CCAMLR needs to maintain a precautionary approach to krill fisheries management. The ... establishment of CM 51-07 – distributing the trigger limit among statistical subareas – was a step in the right ... review of CEMP has become a high priority for the Working Group on Ecosystem Management and Monitoring ...
Meeting Document : CCAMLR-XXX/BG/19 : Author(s): Submitted by ASOC