Résultats de la recherche
-
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
statistical distribution, need to be accommodated. The present study addresses these issues by devel- oping a ... chick) and the date of the count. These issues are addressed by developing a par- ametric bootstrap ... was cho- sen because it represented four issues of the estima- tion process: adjustment of counts that ... availability data. As Starck (1980) made no mention of issues related to sample fraction or detectability, it ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 213–227 : Auteur(s): McKinlay, J., C. Southwell and R. Trebilco
-
Marine debris and fishing gear associated with seabirds at sub-Antarctic Marion island, 1996/97 and 1997/98: in relation to longline fishing activity
their foraging ranges, as well as the level of interaction between these species and sources of marine ... debris (e.g. unregulated fishing vessels). The interaction of procellariiformes with longline fishing ... , this interaction was almost certainly with the toothfish vessels operating around Marion Island ... ., J.P. Croxall, P.S. Rubilar and C.A. Moreno. 1995. Seabird interaction with longlining operations for ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 85–96 : Auteur(s): Nel, D.C. and J.L. Nel
-
Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based on scientific observer data
, subareas and vessels. The potent interaction effect between year and subarea suggests large spatio–temporal ... hardly show difference among years, subareas and vessels. The potent interaction effect between year and ... interaction effect on the variation of krill length as follows: ij i j ijY µ α β γ= + + + (1) ( )~ N 0,10 ... ij represent the effect of year i, the effect of subarea j, and their interaction effect ... Biological model The biological model describes the year effect, the subarea effect, and their interaction ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 31–47 : Auteur(s): Okuda, T. and M. Kiyota
-
Revised age and growth estimates for Antarctic starry skate (Amblyraja georgiana) from the Ross Sea
% (Campana, 2001). There was no apparent bias between the two readings of reader 1, although individual ... -reader bias (see Campana, 2001). Both readers obtained similar age estimates, on average, for skates ... Zealand (Francis et al., 2001), the Falkland Islands (Henderson et al., 2005; Arkhipkin et al., 2008) and ... . Campana, S.E. 2001. Accuracy, precision and qual- ity control in age determination, including a review of ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 211–220 : Auteur(s): Francis, M.P. and M.J. Gallagher
-
Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea
., 2001). More recently, growth bands have Резюме Для оценки возраста особей антарктического ската ... to vertebrae and caudal thorns (Francis and Ó Maolagáin, 2001). The best results were obtained from ... sets of age determinations (Campana et al., 1995). Campana (2001) reported an empirical regression ... preliminary observations from the authors’ previous study (Francis and Ó Maolagáin, 2001), and suggests that ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 183–194 : Auteur(s): Francis, M.P. and C. Ó Maolagáin
-
Length-based assessment for mackerel icefish (Champsocephalus gunnari) at South Georgia
when there are issues separating cohorts that have different birthdays: in an age-structured ... availability issues, an alternative unstratified bootstrap proce- dure was used. This used survey data that ... for this stock. The main reason for moving to a length- based framework was to avoid the issues with ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 129–137 : Auteur(s): Hillary, R.M., C.T.T. Edwards, R.E. Mitchell and D.J. Agnew
-
Population genetic structure of Patagonian toothfish in the West Indian Ocean sector of the Southern Ocean
and PEMI collected samples between 2001 and 2003 (Table 1). Exact fi shing locations are not given ... using primers 12SAR-H (Palumbi et al., 1991) and L16498 (fol- lowing Smith et al., 2001, without the GC ... . (1993) and the Mt-76 primer of Smith et al. (2001). This fragment (approximately 1.1 kb, as in Smith et ... al. (2001)) was digested with NlaIII. Table 1: Sample sizes and average lengths of Dissostichus ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 21–32 : Auteur(s): Appleyard, S.A., R. Williams and R.D. Ward
-
Factors affecting the incidental mortality of seabirds in the Dissostichus eleginoides fishery in the southwest Atlantic (Subarea 48.3, 1995 season)
birds were observed killed, which gives a BPUE of 0.115/1000 hooks. interaction between birds and ... . 1995. Seabird interaction with longlining operations for Dissostichus eleginoides around South ... , Hobart, Australia. Ashford J.R. and P.S. Rubilar. 1994. Interactions between cetaceans and longlining ... interactions with longlining operations for Dissostichus eleginoides at the South Sandwich Islands and South ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 79–91 : Auteur(s): Moreno, C.A., P.S. Rubilar, E. Marschoff and L. Benzaquen
-
Midwater trawl catchability as an aspect of a quantitative assessment of krill biomass conducted using a trawl census survey
mouth. Specific krill biomass over the study area are calculated on the basis of this section of the ... the Isaacs-Kidd trawl it is clear that this type of trawl does not have a rope section and the ... vertical mouth opening in the fine-mesh section (metres) 9.8 11.0 17 13 Horizontal opening between ... length along the topenant - from 115 141 138 115 wingtips to the fine-mesh section (metres) Length of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 257–272 : Auteur(s): Kasatkina, S.M.
-
Areas of seabed within the 500 m isobath around Elephant Island (Subarea 48.1)
estimate had erroneously included the easternmost section of the King George Island shelf and a seamount ... fact that the easternmost section of the King George Island shelf and the seamount to the south of ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 131–135 : Auteur(s): Kock, K.-H. and U. Harm