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1. On the power to detect changes using the standard methods for monitoring parameters of predatory species

   foraging trips (A5.1), penguin breeding success (A6.1), penguin chick diet (A8.1), and fur seal foraging ... trip duration (C2.0). The other Standard Methods are not evaluated because the power analysis ... shifts by penguins(Standard Method A2.1), duration of penguin foraging trips (A5.1), penguin breeding ... success (A6.1), penguin chick diet (A8.1), and fur seal foraging trip duration (C2.0). The other Standard ... by penguins (Standard Method A2.1), duration of penguin foraging trips (AS.1), penguin breeding success (A6.1 ... ), penguin chick diet (A8.1), and fur seal foraging trip duration (C2.0). The other Standard Methods ... considered here. 381 3.5 Duration of Foraging Trips (A5.1) The design for monitoring the duration ... of foraging trips is a nested, or hierarchical, experiment. That is, for any particular year, several ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 377–397 : Author(s): Boveng, P. and J.L. Bengtson

2. Long-term trends in the foraging patterns of female Antarctic fur seals at South Georgia

   Georgia Abstract / Description:  The number of feeding trips to sea made by female Antarctic fur seals ... utilizing tetracycline-marked teeth confirmed that the feeding trip/suckling cycles of females are reflected ... of feeding trips made by an individual’'s mother during lactation. This analysis showed that between ... 1962 and 1981 the mean number of feeding trips made by female fur seals varied markedly. From 1962 ... . Bengtson (USA) Abstract The number of feeding trips to sea made by female Antarctic fur seals during ... tetracycline-marked teeth confirmed that the feeding trip/suckling cycles of females are reflected ... , and 2) the number of feeding trips made by an individual's mother during lactation. This analysis showed ... that between 1962 and 1981 the mean number of feeding trips made by female fur seals varied markedly. From ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 441-443 : Author(s): Bengtson, J.L.

3. A first step towards modelling the krill–predator dynamics of the Antarctic ecosystem

   numbers from the 1950s, and after the depletion of the other major baleen species, the sei whales ... , as indicated by transition-phase observations from earplugs, was downwards from the 1950s to the 1980s ... of research cruise observations support this low minke whale abundance in the 1950s. Zenkovich (1962 ... 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 ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 217–277 : Author(s): Mori, M. and D.S. Butterworth

4. Potential interactions between wandering albatrosses and longline fisheries for Patagonian toothfish at South Georgia

   (1 day), especially in relation to the very long foraging trips during the incubation (averaging 10-12 ... , during the brood-guard period (when foraging trips last 2-3 days, on average) the foraging ranges ... , body reserves of the surviving partner may be reduced to atypically low levels (with potential ... shift caused by the loss of its partner. The restriction of foraging activities to the vicinity ... Patagonian toothfish at South Georgia Abstract / Description:  We examine the extent of overlap between South ... that D. exulans breeding at South Georgia have a relatively low potential risk of interaction with ... through mid-May, adult birds of both sexes spend most of their time at sea over the South Georgia ... continental shelf in areas very similar to where the longline fishery operates and are therefore at serious ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 101–110 : Author(s): Croxall, J.P. and P.A. Prince

5. Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground

   Paper Title:  Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald ... adopted whereby the relatively long time series of catch-at-age and mark-recapture data from the main ... directly from the estimates of population numbers-at-age. The properties of these two models for estimation ... Islands using catch-at-age and aged mark-recapture data from the main trawl ground Abstract / Description ... size and the age-at-maturity ogive. The integrated assessments using CASAL (Bull et al., 2005) of ... Science, Vol. 18 (2011): 29–45 29 EstImatIon of natural mortalIty for thE PatagonIan toothfIsh at ... time series of catch-at-age and mark-recapture data from the main trawl ground at HIMI were used to ... require a catch equation but removes catch-at-age numbers directly from the estimates of population ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 29–45 : Author(s): Candy, S.G., D.C. Welsford, T. Lamb, J.J. Verdouw and J.J. Hutchins

6. Estimation of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial distribution

   to gener- ate Figure 1. The second step of the simulation involved generating random catch-at-age data ... Paper Title:  Estimation of effective sample size for catch-at-age and catch-at-length data using ... distribution of catch-at-age or catch-at-length frequencies using a multinomial likelihood when there is extra ... simulated data from the Dirichlet-multinomial distribution Abstract / Description:  The incorporation of ... ‘effective sample size’ (ESS) in integrated assessments is an approximate but simple way of modelling the ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 115–138 : Author(s): Candy, S.G

7. Breeding numbers and success of Eudyptes penguins at Marion Island, and the influence of mass and time of arrival of adults

   Island, South Georgia, during incuba- tion macaroni penguins travelled long distances on foraging trips ... : on average 572 km for males and 376 km for females, whereas during chick-rearing trips they averaged 62 km ... , A. and A.R. Rey. 2004. Long days, long trips: foraging ecology of female rockhopper penguins Eudyptes ... Paper Title:  Breeding numbers and success of Eudyptes penguins at Marion Island, and the ... influence of mass and time of arrival of adults Abstract / Description:  At sub-Antarctic Marion Island ... , there was substantial correlation in the numbers of adults breeding at study colonies of macaroni ... mass of chicks at fledging. For both species, mass on arrival of males was significantly correlated ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 175–190 : Author(s): Crawford, R.J.M., B.M. Dyer, J. Cooper and L.G. Underhill

8. A von Bertalanffy growth model for toothfish at Heard Island fitted to length-at-age data and compared to observed growth from mark–recapture studies

   . More detail can be made available on request (S. Candy). If fi shing selectivity is assumed to be age ... ’ selection at 1 000 mm length down to 1% selection for a length of 1 600 mm. When length-bin sampling ... VB parameter estimates obtained from the length-at-age data and the Fabens (1965) form of the VB ... to give more realistic predictions of mean length-at-age for young fish. File:  03candy-etal.pdf ... Paper Title:  A von Bertalanffy growth model for toothfish at Heard Island fitted to length-at-age ...

   Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 43–66 : Author(s): Candy, S.G., A.J. Constable, T. Lamb and R. Williams

9. A review of the diet and at-sea distribution of penguins breeding within the CAMLR Convention Area (submitted to the 2008 Joint CCAMLR-IWC Workshop)

   , in species with prolonged foraging trips, food returned to chicks may differ from that ingested by adults ... : prey adults bring back will have been caught during the latter part of the trip, since that captured ... the trip owing to areas with different prey availabilities being exploited, or due to adults deliberately ... then there are complications owing to variations in detectability at different stages of a foraging trip: commuting penguins ... Paper Title:  A review of the diet and at-sea distribution of penguins breeding within the CAMLR ... published information on the diet and at-sea distribution of the six penguin species that breed in the CAMLR ... bioenergetics models that estimate the amount of prey consumed by predators are required to inform such policy ... . These models require information on the number of predators in a population, their nutritional demands ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 75–114 : Author(s): Ratcliffe, N. and P. Trathan

10. Measurements of differences in the target strength of Antarctic krill (Euphausia superba) swarms at 38 kHz and 120 kHz

    superba) swarms at 38 kHz and 120 kHz Abstract / Description:  Differences in the target strength of adult ... differences in the mean back-scattering strength of swarms simultaneously insonified at these two frequencies ... experimental work on the target strength of encaged E. superba at 38 and 120 kHz but are in major conflict with ... Paper Title:  Measurements of differences in the target strength of Antarctic krill (Euphausia ... TARGET STRENGTH OF ANTARCTIC KRILL (EUPHAUSIA SUPERBA) SWARMS AT 38 KHZ AND 120 KHZ I. Hampton ... ) at 38 and 120 kHz have been inferred from differences in the mean back-scattering strength of swarms ... are in good agreement with recent experimental work on the target strength of encaged E. superba at ... (Euphausia superba) abundance have commonly been conducted at echosounder frequencies of between 50 and 200 ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 75–86 : Author(s): Hampton, I.

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