Resultados de la búsqueda
-
Areas of seabed within selected depth ranges in the South-West Atlantic and Antarctic Peninsula regions of the Southern Ocean
Paper Title: Areas of seabed within selected depth ranges in the South-West Atlantic and ... Antarctic Peninsula regions of the Southern Ocean Abstract / Description: Data were tabulated for FAO sub ... ;500m. Extra detailed information was presented for subdivisions 50, 51, and 52 of sub-area 48.3. File ... - 49 - SC-CAMLR-VI/BG/31 AREAS OF SEABED WITHIN ... SELECTED DEPTH RANGES IN THE SOUTH-WEST ATLANTIC AND ANTARCTIC PENINSULA REGIONS OF THE SOUTHERN OCEAN 1 ... information was presented for subdivisions 50, 51, and 52 of sub-area 48.3. Les donnees ont ete presentees ... AOIIOJIHMTeJIbHaH lIoAP06HaH MH~opMa~MH. INTRODUCTION - 51 - AREAS OF SEABED WITHIN SELECTED DEPTH RANGES ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 49-73 : Autor(es): Everson, I.
-
The status of krill (Euphausia superba DANA) resources in CCAMLR Statistical Divisions 58.4.2 and 58.4.3 from 1988 to 1990. Results of acoustic surveys
Paper Title: The status of krill (Euphausia superba DANA) resources in CCAMLR Statistical ... Divisions 58.4.2 and 58.4.3 from 1988 to 1990. Results of acoustic surveys Abstract / Description: Since ... of krill resources in the central part of the Indian Ocean sector of the Antarctic (CCAMLR ... Statistical Divisions 58.4.2 and 58.4.3). Results of surveys conducted from 1988 to 1990 are discussed in the ... WG-KRILL-90/17 THE STATUS OF KRILL (EUPHAUSIA SUPERBA ... DANA) RESOURCES IN CCAMLR STATISTICAL DIVISIONS 58.4.2 AND 58.4.3 FROM 1988 TO 1990. RESULTS OF ... (Kerch, USSR) has carried out biological and ecological monitoring of krill resources in the central ... part of the Indian Ocean sector of the Antarctic (CCAMLR Statistical Divisions 58.4.2 and 58.4.3 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 163–173 : Autor(es): Bibik, V.A. and V.N. Yakovlev
-
Sensitivity analysis for parameters of predatory species CCAMLR Ecosystem Monitoring Program
Program Abstract / Description: Following the request of the Scientific Committee of CCAMLR to conduct ... such a treatment of data obtained at the Magnetic Island Adélie penguin colony in Prydz Bay in the 1987 ... arrival at breeding colonies; duration of first incubation shift; duration of adult foraging trips ... Paper Title: Sensitivity analysis for parameters of predatory species CCAMLR Ecosystem Monitoring ... the foraging trip of the incubating bird's partner. The CEMP Standard Methods Sheets (CCAMLR, 1988 ... predator breeding biology parameters, this report presents such a treatment of data obtained at the ... the pair be recorded. I recorded attendance of a sample of male and female Adelie penguins at two ... female of 26 pairs, and male only at an additional 31 nests, at the Turner colony. At the East colony ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 411–432 : Autor(es): Whitehead, M.D.
-
Foraging behaviour and reproductive success in chinstrap penguins: the effects of transmitter attachment
on: (i) the effects of radio transmitter attachment on nest attendance, foraging trip duration, nest ... , South Shetland Islands. In total, one member of each pair at 20 nests and both members of each pair at ... Paper Title: Foraging behaviour and reproductive success in chinstrap penguins: the effects of ... transmitter attachment Abstract / Description: The use of radio telemetry has been accepted as a standard ... 666 nests on Seal Island, South Shetland Islands. In total, one member of each pair at 20 nests and ... both members of each pair at 10 nests were equipped with a radio transmitter, 120 nests were used as ... biases may potentially result from the effects of transmitter attachment on foraging trip duration, and ... trip duration should be examined to evaluate the utility of this method for monitoring ecosystem ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 291–303 : Autor(es): Croll, D.A., J.L. Bengtson, P.L. Boveng, M.E. Goebel and J.K. Jansen
-
The effects of monitoring procedures on Adélie penguins
performance of Adélie penguins were investigated over three seasons at Béchervaise Island, Mac. Robertson Land ... Paper Title: The effects of monitoring procedures on Adélie penguins Abstract / Description: The ... effects of flipper bands, implanted tags, gastric lavage and external instrument attachment on the ... , Antarctica. The return rates of birds carrying bands and/or implanted electronic transponders were compared ... ). There is a wide range of post-hatch foraging trip durations (5 to 187 hours) at Bkchervaise Island due ... three seasons at Bechervaise Island, Mac. Robertson Land, Antarctica. The return rates of birds ... size were chosen at the time of flushing and all nests %.ere checked daily. The flushing process ... -period foraging trips and at various stages throughout the brood and guard periods. Birds of known ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 155–164 : Autor(es): Clarke, J. and K. Kerry
-
Variations in echosounder calibration with temperature, and some possible implications for acoustic surveys of krill biomass
S v transducer gains at South Georgia (sea temperature at depth of transducer = 2.3 o C) were on ... average 1.4 dB less than in European waters (16.6 o C), and a similar trend was detected at 38 kHz. If ... implications for acoustic surveys of krill biomass Abstract / Description: Accurate estimation of krill ... biomass by acoustic techniques is dependent on a number of factors of which one of the most fundamental is ... (sea temperature at depth of transducer = 2.3'C) were on average 1.4 dB less than in European waters ... undertaken in temperate European waters. The most recent of these took place in August 1995 at Uggdalseidet ... (16.6"C), and a similar trend was detected at 38 kHz. If European calibration parameters were to be ... of seasons in both Antarctic and European waters, which further support the view that echosounder ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 273–281 : Autor(es): Brierley, A.S., C. Goss, J.L. Watkins and P. Woodroffe
-
On the power to detect changes using the standard methods for monitoring parameters of predatory species
of predatory species Abstract / Description: The CCAMLR guidelines (CCAMLR, 1989) for analyzing the ... statistical power to detect changes are applied using variance estimates from studies at the South Shetland ... Islands of lengths of first incubation shifts by penguins(Standard Method A2.1), duration of penguin ... trip duration (C2.0). The other Standard Methods are not evaluated because the power analysis in the ... following results were obtained. The average of the mean trip durations of 19 fur seal females at Seal ... applied using variance estimates from studies at the South Shetland Islands of lengths of first ... for Adelie and chinstrap penguins at Signy Island. 3.2 Length of First Incubation Shift (A2.1 ... penguins for five years and of male and female chinstrap penguins for four years at King George Island ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 377–397 : Autor(es): Boveng, P. and J.L. Bengtson
-
A first step towards modelling the krill–predator dynamics of the Antarctic ecosystem
Paper Title: A first step towards modelling the krill–predator dynamics of the Antarctic ... ecosystem Abstract / Description: The history of human harvests of seals, whales, fish and krill in the ... hypothesis of a krill surplus in the mid-20th century is described, and the information on population and ... objective of the study is to determine whether predator–prey interactions alone can broadly explain observed ... taken from the end of the 18th century, followed by whales at the start of the 20th century. More ... . After this exploitation of the Antarctic fur seals, and commencing at the beginning of the 20th cen ... microcephalus) were taken in substantial numbers from the 1950s, and after the depletion of the other major ... II, the Antarctic blue whale popula- tion was already at about only a quarter of its pris- tine level ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 217–277 : Autor(es): Mori, M. and D.S. Butterworth
-
Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island
Paper Title: Differences in distribution and population structure of krill (Euphausia superba ... studies of krill-eating predators (penguins and female fur seals) near Seal Island were conducted to ... in inshore regions where krill frequently occurred but higher density areas of krill (~250 g/m 2 ... occurred only occasionally but in large aggregations (surface length about 2 to 3 km) of higher densities ... possible or until the fur seal or penguin returned to shore at the end of its feeding trip. Location of ... foraging behaviour of krill predators breeding at the island. As part of CEMP-related activities, in the ... bridge of the Kaiyo Maru to assist in locating fur seals and penguins at sea. These antennae were ... penguin departed to sea on a feeding trip; at that time, the ship followed the individuals as long as ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 273–285 : Autor(es): Ichii, T., H. Ishii, J.L. Bengtson, P. Boveng, J.K. Jansen and M. Naganobu
-
A statistical method for estimating the level of IUU fishing: application to CCAMLR Subarea 48.3
’ and ‘unseen’ IUU fishing by using a simulation model to arrive at statistically rigorous estimates of ... Paper Title: A statistical method for estimating the level of IUU fishing: application to CCAMLR ... , unregulated and unreported (IUU) catches of fish and by-catch of birds. It utilises high quality, well ... -documented fisheries protection vessel (FPV) cruise data. The method takes explicit account of both ‘seen ... simulation model to arrive at statistically rigorous estimates of, and confi dence intervals for, fi sh and ... estimates of ranges, and does not include any indication of the variance of those estimates. However, at ... the fi rst one (modelled using the encounter prob- ability acting at the time of the downward-pointing ... arrow) but correctly located by the third FPV cruise (at the second downward-pointing arrow). Each of ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 119–141 : Autor(es): Agnew, D.J. and G.P. Kirkwood