Search results
-
Preliminary results of age determination by otolith mass in mackerel icefish Champsocephalus gunnari Lonnberg 1905 in the Heard Island area (Australia)
Abstract: To determine mackerel icefish Champsocephalus gunnari age, otolith mass was used ... analysis method. Five age groups were defined. Bertalanffi linear growth equation was calculated: Lt=41.73 ... (1-e-0.5149(1+0.05225)) On this basis the size-age key for this season has been estimated. Author(s): I.B ... . Russelo (Ukraine) Title: Preliminary results of age determination by otolith mass in mackerel icefish ...
Meeting Document : WG-FSA-94/08 : Author(s): I.B. Russelo (Ukraine)
-
Research plan for the exploratory longline fishery for Dissostichus spp. in 2016/17 in Division 58.4.3a by France and Japan
for the von Bertalanffy growth curve from age readings. The catch limit should remain unchanged at 32 tonnes ... growth curve from age readings. The catch limit should remain unchanged at 32 tonnes for 2016/17 ... the coming years in order to contribute to the tagging program and to achieve a robust stock assessment ... their intention to continue their exploratory fisheries in Division 58.4.3a over the coming years in order ...
Meeting Document : WG-SAM-16/03 : Author(s): Delegations of France and Japan
-
Annual variation in the timing of reproduction in Antarctic fur seals (Arctocephalus gazella) at Bird Island, South Georgia
, which is less synchronous within years than female arrival, was significantly later in 1987 than in any ... other year. Female arrival, estimated by pup birth date where necessary, was highly synchronous ... : it usually started when 80% or more of potential territory sites were occupied by males. Cows arrived ... synchronous within years than female arrival, was significantly later in 1987 than in any other year. Female ...
Meeting Document : WG-CEMP-90/39 : Author(s): C.D. Duck (United Kingdom)
-
Performance metrics to index the spatial coverage of mark-recapture data
was 70% (95% CIs 53–80%), and the median tag overlap bias was 88% (95% CIs 64–114%). In 2014 the median ... ;80%), and the median tag overlap bias was 88% (95% CIs 64–114%). In 2014 the median tag spatial ...
Meeting Document : WG-SAM-16/13 : Author(s): C. Marsh, A. Dunn and S. Mormede
-
Effect of orientation on broadband acoustic scattering of Antarctic krill Euphausia superba: implications for inverting zooplankton spectral acoustic signatures for angle of orientation
and video footage from several Antarctic krill were carried out to determine the effect of animal ... Classification (CMVC) approach, using generic and animal-specific theoretical and empirical model spaces ... . The animal-specific empirical model space was best able to invert for angle of orientation. The CMVC ... footage from several Antarctic krill were carried out to determine the effect of animal orientation ...
Meeting Document : WG-EMM-99/41 : Author(s): L.V. Martin Traykovski (USA), R.L. O’Driscoll (New Zealand) and D.E. McGehee (USA)
-
Modelling the dynamics of krill populations in the Antarctic Peninsula region
age-structured population model and uses only the recruitment data to develop a model of the long-term ... dynamics. Data on the recruitment of the first and second age groups were used to derive different ... estimates of mortality rates. Both model approaches applied to the recruitment data for the first age class ... data. Using the recruitment data for the second age class produced higher mortality rate estimates ...
Meeting Document : WG-EMM-99/56 : Author(s): E.J. Murphy (United Kingdom), A. Constable (Australia) and D. Agnew (United Kingdom)
-
Growth rates of Antarctic fur seals as indices of environmental conditions
mass at age in each year compared to the multi-year mean, that was not dependent on assumptions ... population samples. A new index was developed, based on the deviation of pup mass at age in each year ... growth rates in years of low krill availability. Biases reflecting changes in the component ... in years of low krill availability. Biases reflecting changes in the component of the population available ...
Meeting Document : WG-EMM-01/20 : Author(s): K. Reid (United Kingdom)
-
Casal2: New Zealand’s integrated population modelling tool
assessment pack-age since 2002. Casal2 replicates most of CASAL’s functions such as many stocks, fisheries ... , and areas; age-or length-based dynamics; the use of several data sources (e.g., abundance indices, age ... assessment pack-age since 2002. Casal2 replicates most of CASAL’s functions such as many stocks ... , fisheries, and areas; age-or length-based dynamics; the use of several data sources (e.g., abundance indices ...
Meeting Document : WG-SAM-18/P01 : Author(s): I. Doonan, K. Large, A. Dunn, S. Rasmussen, C. Marsh and S. Mormede
-
EU PROPOSAL FOR AMENDMENT TO CCAMLR CONSERVATION MEASURE 10-07 TO ALLOW FOR INTERSESSIONAL DE-LISTING OF IUU VESSELS
FOR INTERSESSIONAL DE-LISTING OF IUU VESSELS Explanatory Memorandum Over the course of last years, CCAMLR adopted ... Review Panel that "CCAMLR should review the process […], timing and frequency with which vessels ... FOR INTERSESSIONAL DE-LISTING OF IUU VESSELS Explanatory Memorandum Over the course of last years, CCAMLR adopted ... of the Performance Review Panel that "CCAMLR should review the process […], timing and frequency ...
Meeting Document : CCAMLR-XXIX/43 : Author(s): Delegation of the European Union
-
EU PROPOSAL FOR AMENDMENT TO CCAMLR CONSERVATION MEASURE 10-06 TO ALLOW FOR INTERSESSIONAL DE-LISTING OF IUU VESSELS
FOR INTERSESSIONAL DE-LISTING OF IUU VESSELS Explanatory Memorandum Over the course of last years, CCAMLR adopted ... Review Panel that "CCAMLR should review the process […], timing and frequency with which vessels ... FOR INTERSESSIONAL DE-LISTING OF IUU VESSELS Explanatory Memorandum Over the course of last years, CCAMLR adopted ... of the Performance Review Panel that "CCAMLR should review the process […], timing and frequency ...
Meeting Document : CCAMLR-XXIX/42 : Author(s): Delegation of the European Union