Résultats de la recherche
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Telemetry monitoring of ecological resources
Paper Title: Telemetry monitoring of ecological resources Abstract / Description: Current status ... of telemetry and location monitoring are discussed. Limitations on weight, communication range and ... service life are indicated. A general description of attachment methods and their limitations is given ... monitoring using the Argos/Tiros system and satellite transmission of data are also covered. File: 24 ... system developed at the University of Minnesota in the mid-1960s 20 • It used two mechanically rotating ... - 495 - TELEMETRY MONITORING OF ECOLOGICAL RESOURCES ... V.B. Kuechle (USA) Abstract WG-CEMP-87/16 Current status of telemetry and location monitoring ... description of attachment methods and their limitations is given. Three automatic tracking system options ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 495-511 : Auteur(s): Kuechle, V.B.
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On the instantaneous natural mortality rate of Champsocephalus gunnari, South Georgia (Subarea 48.3)
composition of catches from 1964/65 to 1968/69 and the age/length key for the first half of 1972 were used in ... Paper Title: On the instantaneous natural mortality rate of Champsocephalus gunnari, South ... Georgia (Subarea 48.3) Abstract / Description: The instantaneous rate of natural mortality (M) of ... the calculations. The results provided a wide range of estimates for M. The discussion of the results ... 1968/69 and the age/length key for the first half of 1972 were used in the calculations. The results ... of 1972 (Table 2). Unlike the authors' study in 1989, growth parameter calculations and estimates of ... first half of 1972. Length Age group (cm) 1 2 3 4 5 6 7 8 9 10 16-17 15 0 0 0 0 0 0 0 0 0 18-19 ... RATE OF CHAMPS 0 CEPHAL US GUNNARl, SOUTH GEORGIA (SUBAREA 48.3) G.A. Frolkina and R.S. Dorovskikh ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 313–326 : Auteur(s): Frolkina, G.A. and R.S. Dorovskikh
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The effects of CEMP monitoring procedures on Adelie penguin colonies
band and tag loss. There was a reduction in return rates of birds banded for more than one season, but ... no evidence of band or tag loss over a single winter. The attachment of satellite tracking devices ... Abstract: The effects of flipper bands, implanted tags/gastric lavage and external instrument ... attachment on the performance of Adelie penguins were investigated over three seasons at Bechervaise Island ...
Meeting Document : WG-CEMP-93/19 : Auteur(s): J. Clarke, K. Kerry (Australia)
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Hook selectivity in the longline fishery of Dissostichus eleginoides (Nototheniidae) off the Chilean coast
the coast of Valdivia, South East Pacific, are also taken into consideration. The data show that ... Paper Title: Hook selectivity in the longline fishery of Dissostichus eleginoides (Nototheniidae ... Chilean fisheries of the Patagonian toothfish, Dissostichus eleginoides is reviewed in order to study ... selectivity of different types and sizes of hooks used in longlines. Original data obtained during 1991 off ... in longlines. Original data obtained during 1991 off the coast of Valdivia, South East Pacific, are ... includes the South East Pacific Ocean, covers the continental slope of the Chilean-Peruvian trench and ... OF DISSOSTICHUS ELEGINOIDES (NOTOTHENIIDAE) OFF THE CHILEAN COAST Carlos A. Moreno* Abstract ... Existing information from technical publications on Chilean fisheries of the Patagonian toothfish ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 107–119 : Auteur(s): Moreno, C.A.
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Foraging energetics of Antarctic fur seals in relation to changes in prey availability
parturition in 1984, and both pup mortality and the proportion of pups that died from starvation were double ... account for the observed between-year difference in at-sea FMR of C. ursinus while foraging-trip duration ... Abstract: This research examines the energy budget of breeding female Antarctic fur seals, both ... when food was plentiful and when it was scarce. The energy expenditure and change in body mass of ...
Meeting Document : SC-CAMLR-VIII/BG/13 : Auteur(s): Delegation of United Kingdom
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An overview of Southern Ocean zooplankton data: abundance, biomass, feeding and functional relationships (submitted to the 2008 Joint CCAMLR-IWC Workshop)
Paper Title: An overview of Southern Ocean zooplankton data: abundance, biomass, feeding and ... an enormous amount of data on Southern Ocean (SO) zooplankton, mostly on their distribution with a ... assist SO food-web modellers or those with limited specialist knowledge of SO zooplankton. First, a brief ... overview is provided of the diversity and basic biology of SO zooplankton, with an emphasis on abundance ... Atlantic sec- tor (0–90°W; Marr, 1962), which holds ~75% of the total stock (Atkinson et al., 2008 ... : C. acutus, R. gigas, C. propinquus and C. similli- mus (Voronina, 1970, 1972). Unfortunately some of ... Science, Vol. 19 (2012): 171–218 171 AN OVERVIEW OF SOUTHERN OCEAN ZOOPLANKTON DATA: ABUNDANCE ... 3DH United Kingdom B.P.V. Hunt and E.A. Pakhomov Department of Earth and Ocean Sciences ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 171–218 : Auteur(s): A. Atkinson, P. Ward, B.P.V. Hunt, E.A. Pakhomov and G.W. Hosie
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A declining trend in the abundance of Notothenia rossii marmorata and Notothenia gibberifrons observed in fjords in two sites in the South Shetland Islands
to the catches of N. neglecta. A similar declining trend had been reported in the 1960s and 1970s for ... Paper Title: A declining trend in the abundance of Notothenia rossii marmorata and Notothenia ... trend observed in the abundance of Notothenia rossii marmorata and Notothenia gibberifrons in fjords in ... , King George/25 de Mayo I., over a period of eight years from 1983 to 1990 and in waters around Half ... principios de los afios 80. 1. INTRODUCTION At the Eighth Meeting of the Scientific Committee the ... WG-FSA-90/14 A DECLINING TREND IN THE ABUNDANCE OF ... of Notothenia rossii marmorata and Notothenia gibberifrons in fjords in two sites in the South ... ., over a period of eight years from 1983 to 1990 and in waters around Half-Moon 1., Moon Bay, in 1989 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 263–274 : Auteur(s): Barrera-Oro, E. and E. Marschoff
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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 ... 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 ... of the power of Standard Methods A3.1, A5.1, C1.0, and C2.0 are proposed. File: 22-Boveng-and ... complication of a nested design, the standard method for monitoring foraging trip duration may be complicated ... by an inverse relationship between trip duration and number of trips. That is, if a bird with a ... ) to produce the required sample size for effective monitoring of foraging trip duration. Existing ... estimates of the variance of trip duration for an individual bird, the covariance of trip duration with ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 377–397 : Auteur(s): Boveng, P. and J.L. Bengtson
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The biology, ecology and development of fishery management advice for the anomuran crabs at South Georgia (CCAMLR Subarea 48.3)
Paper Title: The biology, ecology and development of fishery management advice for the anomuran ... available information on the biology and ecology of the lithodids at South Georgia and provides an overview ... of the development of a management regime for them. Finally it aims to highlight areas in which ... assessment and management methods in light of continuing interest in the regional crab fishery. Considerable ... ). Size limits In the 1991/92 season data from an initial 22-day trip of the US vessel FV Pro Surveyor ... majority of male P. formosa caught during the initial 22-day trip had smaller carapace widths than 90 mm ... could die for every one individual retained, depending on species compo- sition of catches, the ... Members of the anomuran crustacean family Lithodidae (commonly known as stone crabs or king crabs) are ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 1–15 : Auteur(s): Belchier, M., T. Peatman and J. Brown
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Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia
Paper Title: Estimating the impact of depredation by killer whales and sperm whales on longline ... data collected on longliners between 2003 and 2009 were analysed to look at the levels of depredation ... . Since 2003, cetaceans have been observed on 22% of 14 300 observed lines, with killer whales present on ... 3.8% and sperm whales on 17.7% of lines. Killer whales appear in pod sizes normally of 4 to 10 animals ... species demonstrate an east to west migration throughout the season that is not related to the pattern of ... proportion of sightings of each species in each area, assuming the split between east and west at 39°W ... at the start of the season in the east and at the end to the west, which could imply that the ... , following the Antarctic ridge and arriving at South Georgia from the east at the beginning of May ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 163–178 : Auteur(s): Moir Clark, J. and D.J. Agnew