Search results
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ANALYSIS OF VARIABILITY OF KRILL SIZE AND FISH BY-CATCH IN JAPANESE KRILL FISHERY BASED ON SCIENTIFIC OBSERVER DATA
a hierarchical Bayesian model. The model was composed of multistage cluster units (i.e., years, subarea, vessels ... length and bycatch fish number, the parameters estimated by MCMC showed the variation among years ... , subareas, and vessels. The potent interaction effect between year and subarea suggests large spatiotemporal ... Bayesian model. The model was composed of multistage cluster units (i.e., years, subarea, vessels, and haul ...
Meeting Document : WG-EMM-11/39 : Author(s): T. Okuda and M. Kiyota (Japan)
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A revised estimate of short-term yield for the mackerel icefish (Champsocephalus gunnari) off Heard Island based on a trawl survey in 1998
in this population. Unlike the previous 3 years, the Age 2 cohort in 1998 is very weak and is expected to contribute ... little to the biomass in subsequent years. If recruitment to Age 2 in 1999 is also weak then the fishery ... the previous 3 years, the Age 2 cohort in 1998 is very weak and is expected to contribute little to the biomass ... in subsequent years. If recruitment to Age 2 in 1999 is also weak then the fishery in 2000 will be predominantly ...
Meeting Document : WG-FSA-98/54 : Author(s): A. Constable and D. Williams (Australia)
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On problem of natural subdividing of Antarctic krill’s geographic area (an application to the monitoring of fishing)
) rises the necessarity to repeate these observations during several years, which is very expensive ... are a serious help in this respect for intermediate years beetween the seasons of wide scientific expeditional ... ) rises the necessarity to repeate these observations during several years, which is very expensive ... are a serious help in this respect for intermediate years beetween the seasons of wide scientific expeditional ...
Meeting Document : WG-KRILL-93/37 : Author(s): R.R. Makarov and L.L. Menshenina (Russia)
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Age and growth in length of Micromesistius australis, Norman, 1937 (Pisces, Gadidae), in the southern zone of the Argentine Sea
Herwig and Shinkai Marú in agreement with the Argentine Republic, in the years 1978 and 1978/79 ... and t in years. For the estimation of the general equation parameters the first 15 age classes in males ... and Shinkai Marú in agreement with the Argentine Republic, in the years 1978 and 1978/79 respectively ... as: Lt= 58.18 [1-e-0.1709 (t+2.44)] Lt= 63 [1-e-0.1134 (t+5.2)] giving Lt in cm and t in years ...
Meeting Document : SC-CAMLR-V/BG/31 : Author(s): Delegation of Argentina
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Sea ice characterisation of the proposed Ross Sea region Marine Protected Area Special Research Zone
ice within and surrounding the boundaries of the proposed SRZ over the past 16 years, the impact ... was still removed from the area in constraining ice years (2010 and 2013). The main influence of sea ice ... within and surrounding the boundaries of the proposed SRZ over the past 16 years, the impact it has had ... in constraining ice years (2010 and 2013). The main influence of sea ice on achieving the proposed objectives ...
Meeting Document : SC-CAMLR-XXXIV/BG/31 : Author(s): S. Parker, S. Hoyle, S. Hanchet and R.J.C. Currey (New Zealand)
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Poor breeding success of the Adélie penguin at Béchervaise Island in the 1998/99 season
to adult birds spending longer at sea foraging than in normal years. In most previous seasons birds have ... " years. Meal masses brought back to the chicks appeared normal, but feeding frequencies were ... spending longer at sea foraging than in normal years. In most previous seasons birds have foraged both ... penguins carried out fewer local trips, and both sexes spent longer at sea than in "good" years. Meal ...
Meeting Document : WG-EMM-99/25 : Author(s): L. Irvine, J.R. Clarke and K.R. Kerry (Australia)
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TEMPORAL CLARIFICATION OF THE TRANSITION FROM BLUE PHASE FINGERLING TO EARLY JUVENILE BROWN PHASE IN NOTOTHENIA ROSSII FROM THE SOUTH SHETLAND ISLANDS
juveniles of 8.5-20.9 cm and predominant age groups 1-2 years. Counting of sclerites facilitated ... juveniles of 8.5-20.9 cm and predominant age groups 1-2 years. Counting of sclerites facilitated ... rossii caught in Potter Cove, South Shetland Islands, in summer of years 2003-2006 and 2008. The sample ... was composed by blue phase fingerlings of 7-7.6 cm (TL) and age group 0 year and demersal young brown phase ...
Meeting Document : WG-FSA-09/32 : Author(s): E. Barrera-Oro, E. Moreira, N. Alescio and E. Marschoff (Argentina)
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A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2015 random stratified trawl survey
population structure, abundance and yield for the area of Division 58.5.2 to the west of 79o 20’ E using ... population structure, abundance and yield for the area of Division 58.5.2 to the west of 79o 20&rsquo ...
Meeting Document : WG-FSA-15/12 Rev. 1 : Author(s): D.C. Welsford (Australia)
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DEPREDATION AROUND SOUTH GEORGIA AND THE IMPLICATIONS ON STOCK ASSESSMENT OF D. ELEGINOIDES
) around South Georgia. Since 2003 cetaceans have been observed on 3000 out of 14644 observed lines (20 ... examined and varied from 0.9% to 5.8% of the TAC per year over the time period. Additional work was also ... identification and give an idea of population size, a photographic catalogue of individual animals was developed ... in season and between years. Hydrophones deployed on longlines recorded both vocalisations of cetaceans ...
Meeting Document : WG-FSA-09/16 : Author(s): J. Moir Clark, D.A. Agnew, P. McCarthy and M. Unwin (United Kingdom)
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PRELIMINARY ASSESSMENT OF MACKEREL ICEFISH, CHAMPSOCEPHALUS GUNNARI, IN THE VICINITY OF HEARD ISLAND AND MCDONALD ISLANDS (DIVISION 58.5.2), BASED ON A SURVEY IN JULY 2008, USING THE GENERALISED YIELD MODEL
for the area of Division 58.5.2 to the west of 79o 20’ E using standard CCAMLR methods. The strong year class ... of Division 58.5.2 to the west of 79o 20’ E using standard CCAMLR methods. The strong year class ... detected in last year’s survey is now fully recruited as the 2+ cohort, and dominates the population ... detected in last year’s survey is now fully recruited as the 2+ cohort, and dominates the population. ...
Meeting Document : WG-FSA-08/56 : Author(s): D.C. Welsford (Australia)