Resultados de la búsqueda
-
Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia
becoming fewer towards the end of the season in August. Killer whale interactions appear to be more ... the levels of depredation caused by killer whales (Orcinus orca) and sperm whales (Physeter ... sizes normally of 4 to 10 animals, and often appear to actively seek out fishing vessels and ‘strip’ the ... . Most interactions from sperm whales occur during May at the start of the season with the sightings ...
Meeting Document : WG-FSA-10/P06 : Autor(es): J. Moir Clark and D.J. Agnew
-
A SIMULATION STUDY TO DETERMINE THE RELATIONSHIP BETWEEN SAMPLING INTENSITY AND PRECISION WHEN ESTIMATING AVAILABILITY FUNCTIONS FOR BREEDING ADÉLIE PENGUIN COLONIES
significant loss of information content. To this end, a simulation study was undertaken to examine how the ... STUDY TO DETERMINE THE RELATIONSHIP BETWEEN SAMPLING INTENSITY AND PRECISION WHEN ESTIMATING ...
Meeting Document : WG-EMM-11/12 : Autor(es): J. McKinlay and C. Southwell (Australia)
-
RECENT TRENDS IN NUMBERS OF FOUR SPECIES OF PENGUINS AT THE PRINCE EDWARD ISLANDS
in numbers of king penguin chicks that survived to the end of the winter period, but there was ... pairs of king penguins were incubating eggs at Marion Island, the larger of the two islands in the group ... considerable fluctuation in chick production in the 1990s. It was roughly estimated that on average 88% of king ... penguin chicks survived the winter period (from April to September/October). Numbers of gentoo penguins at ...
Meeting Document : WG-EMM-10/P1 : Autor(es): R.J.M. Crawford, P.A. Whittington, L. Upfold, P.G. Ryan, S.L. Petersen, B.M. Dyer and J. Cooper
-
Analysis of changes in biomass of fish stocks in the South Georgia Area in 1976/77 – 1986/87
Abstract: The swept area method was used to estimate biomass density changes in the stocks of ... , Notothenia gibberifrons, and Notothenia rossii marmorata in the South Georgia area in the seasons of 1916/77 ... -1986/87. In most of the seasons analysed, the estimates covered a near-bottom layer in about 1/6 of the ... area of the island shelf. Assessment results point to considerable variations in fish biomass density ...
Meeting Document : WG-FSA-87/10 : Autor(es): M. Mucha and W. Ślósarczyk (Poland)
-
Analysis of changes in biomass of fish stocks in the south Georgia Area in 1976/77 – 1986/87
Abstract: The swept area method was used to estimate biomass density changes in the stocks of ... , Notothenia gibberifrons, and Notothenia rossii marmorata in the South Georgia area in the seasons of 1976/77 ... -1986/87. In most of the seasons analysed, the estimates covered a near-bottom layer in about 1/6 of the ... area of the island shelf. Assessment results point to considerable variations in fish biomass density ...
Meeting Document : SC-CAMLR-VI/BG/40 : Autor(es): M. Mucha and W. Ślósarczyk (Poland)
-
Diurnal changes of some biological characteristics of Euphausia superba Dana in swarms (westward of the South Orkney Islands, 24 March to 18 June 1990 - based on data reported by biologist-observer)
out during the working period of commercial trawler ‘Grigory Kovtun’ in the fishing area near the ... station consisted of series of catches by mean the usual commercial trawl (9-12 tows per every station ... of swarms. When diurnal migration are absent (particularly at most later season) the diurnal changes ... . superba from end March to June was observed in operation region. As may suppose, these changes are related ...
Meeting Document : WG-KRILL-92/09 : Autor(es): A.V. Vagin, R.R. Makarov and L.L. Menshenina (Russia)
-
Learning about Antarctic krill from the fishery
understanding their biology to be able to make reliable predictions about the reaction of their populations to ... biology. The krill fishery is the largest fishery in the Southern Ocean, continuously operating since ... discussions to understand krill biology. In this paper, after a brief overview of krill fishery operation and ... krill biology, we examine how current data collection through the fishery operation could contribute to ...
Meeting Document : WG-EMM-07/P5 : Autor(es): S. Kawaguchi and S. Nicol (Australia)
-
Learning about Antarctic krill from the fishery
understanding their biology to be able to make reliable predictions about the reaction of their populations to ... biology. The krill fishery is the largest fishery in the Southern Ocean, continuously operating since ... discussions to understand krill biology. In this paper, after a brief overview of krill fishery operation and ... krill biology, we examine how current data collection through the fishery operation could contribute to ...
Meeting Document : WG-EMM-06/24 : Autor(es): S. Kawaguchi and S. Nicol (Australia)
-
Comparison of census methods for black-browed albatrosses breeding at the Ildefonso Archipelago, Chile
pairs of black-browed albatrosses bred at the Ildefonso archipelago. After the Falkland Islands/Malvinas ... the Ildefonso Archipelago, Chile, for > 90 years the population has never been censused using ... scientifically defendable methods. To estimate population size, and examine the accuracy and practicality of ... various census methods, the population was censused in the 2002/03 breeding season using a) ground-truthed ...
Meeting Document : WG-FSA-06/12 : Autor(es): G. Robertson, K. Lawton (Australia), C.A. Moreno (Chile), R. Kirkwood (Australia) and J. Valencia (Chile)
-
ASOC evaluation of the CDS
Abstract: The trade in IUU toothfish continues two years after the adoption by CCAMLR of a Catch ... Documentation Scheme (CDS) for toothfish. Accurate and verifiable data is necessary for the CDS to successfully ... track the trade in toothfish, gather scientific data on the fishery, and close ports to IUU fish. ASOC ... is concerned that the CDS lacks a verification procedure, explicit actions to be taken upon discovery ...
Meeting Document : CCAMLR-XX/BG/20 : Autor(es): Submitted by ASOC