Search results
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Integrating Count Effort by Seasonally Correcting Animal Population Estimates (ICESCAPE): a method for estimating abundance and its uncertainty from count data using Adélie penguins as a case study
site distribution contributing to the aggregate dis- tribution has already been formed using sam ... fractions were assumed to be 1). The ICESCAPE estimation procedure was applied to the adult data, with dis ... of uncertainty (e.g. Law, 1962; Ensor and Bassett, 1987). In the interests of promoting a precau- tionary ... for developing avail- ability adjustment factors for adult Adélie pen- guins in East Antarctica, with only two ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 213–227 : Author(s): McKinlay, J., C. Southwell and R. Trebilco
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Modelling egg and larval transport of Antarctic Toothfish (Dissostichus mawsoni) in the East Antarctic region: Plan
to be fully understood. Especially in early life stage, the process of successful egg/larval transport pattern ... from spawning ground to nursery ground is poorly known in the East Antarctic region. This project ... explore possible transport process of egg/larvae in the East Antarctic region and it will contribute ... ) in the East Antarctic region: Plan Approval: Approved Secretariat Workflow Status: Content Approved Document ...
Meeting Document : WG-SAM-2019/20 : Author(s): M. Mori, K. Mizobata, T. Okuda and T. Ichii
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Multiple acoustic estimates of krill density at South Georgia during 2000/2001 reveal significant intra-annual and spatial variability
around South Georgia in the 2000/2001 season: in October 2000 (early-season); during late December ... / early January 2000/2001 (mid-season), and in March 2001 (late-season). The surveys were the first ... the early1980s). We hoped that conducting several surveys in one season would provide information on short-term ... . The early- and late-season surveys were associated with logistic support voyages to South Georgia and were ...
Meeting Document : WG-EMM-01/15 : Author(s): A.S. Brierley, C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst (United Kingdom)
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NEW REGIONAL-SCALE SURVEYS OF THE ADÉLIE PENGUIN BREEDING POPULATION IN PRYDZ BAY: A STEP TOWARDS IMPROVED ESTIMATION OF KRILL CONSUMPTION IN EAST ANTARCTICA
. A review of historical Adélie penguin survey data in east Antarctica revealed Prydz Bay as a priority ... breeding population of Adélie penguins in east Antarctica but the most recent abundance survey ... was conducted 30 years ago. To understand current levels of prey consumption in east Antarctica it is therefore ... in the early 1980s. The new abundance estimates will significantly improve estimates of prey consumption ...
Meeting Document : WG-EMM-11/32 : Author(s): C. Southwell, J. McKinlay, K. Newbery, L. Emmerson and J. Lieser (Australia)
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Icefish fisheries
of the fisheries in the early 1990s. Nowadays, fisheries on mackerel icefish may only occur within two years ... 88 1970 0 5 0 1971 10701 17958 0 1972 551 23891 0 1973 1830 4 0 1974 254 8341 0 1975 746 10694 0 1976 ... annual variability in catches, led to the closure of the fisheries in the early 1990s. Nowadays ...
Page : Site Section: Fisheries
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WG-EMM-05
Islands (48.3) krill fishery (summer 2004 to early winter 2005) O. Pin, H. Nión, E. Delfino and P. Meneses ... penguin foraging trip duration: consequences of high inter-annual variability and usefulness of ice cover ... of pack-ice seals off east Antarctica C. Southwell (Australia), D. Borchers, C. Paxton (United Kingdom ...
Meeting
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Upward adjustments to local catch limits for the krill fishery in Subarea 48.1
opinion, and suggests that indices of foraging trip duration, fledge weight, and reproductive success ... , a ratio of late to early summer krill biomass estimates can be indicative of “surplus” krill potentially ... to increase local catch limits. Provided the stoplight is green, the ratio of late-summer to early-summer ... of foraging trip duration, fledge weight, and reproductive success are highly influential in determining ...
Meeting Document : WG-EMM-16/47 : Author(s): Antarctic Ecosystem Research Division, Southwest Fisheries Science Center and NOAA Fisheries
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Temporal variability in Adélie penguin CEMP parameters and their response to changes in prey availability
the duration of early and late stage foraging trips. For example, low breeding success was recorded in a season ... the duration of early and late stage foraging trips. For example, low breeding success was recorded in a season ... , foraging trip duration, meal mass and fledgling weights. Some years had either good breeding success ... with long foraging trips during the guard period, relatively short trips during the crèche period and heavy ...
Meeting Document : WG-EMM-12/22 : Author(s): L. Emmerson and C. Southwell (Australia)
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Temporal variability in Adélie penguin CEMP parameters and their response to changes in prey availability
the duration of early and late stage foraging trips. For example, low breeding success was recorded in a season ... the duration of early and late stage foraging trips. For example, low breeding success was recorded in a season ... , foraging trip duration, meal mass and fledgling weights. Some years had either good breeding success ... with long foraging trips during the guard period, relatively short trips during the crèche period and heavy ...
Meeting Document : WG-EMM-12/48 : Author(s): L. Emmerson and C. Southwell (Australia)
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Fishery Report: Exploratory fishery for Dissostichus spp. (TOT) in Subareas 88.1 and 88.2
in Subarea 88.1, with an abnormal thawing pattern in the north, and an early thawing in the southeast ... , fishing has started in early December (ice permitting) and has usually finished in January or February ... were quite high in the early part of the fishery, particularly in 2001, but have been relatively low ... ocean sectors. 23. The present hypothesis regarding spawning dynamics and early life history ...
Document : Site Section: Publications