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DEFINING TAG RATES AND TACS TO OBTAIN SUITABLY PRECISE ABUNDANCE ESTIMATES FOR NEW AND EXPLORATORY FISHERIES IN THE CCAMLR CONVENTION AREA
catches (TACs) that would be expected to yield a pre-specified precision in a resultant abundance estimate ... and recaptures, which can in turn be expressed in terms of the tagging rate per tonne caught, the catch taken ... of defining suitable catch levels and tagging rates required to obtain a given precision in the Petersen ... This paper outlines a method of calculating suitable tagging rates and total allowable catches ...
Meeting Document : WG-SAM-08/06 : Author(s): R.M. Hillary (UK)
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Re-analysis of CPUE in both species of toothfish in 48.6 area
, an analysis of catch intention was implemented by using multivariate statistical approach of the catch ... of catch intention was implemented by using multivariate statistical approach of the catch composition ...
Meeting Document : WG-FSA-13/63 : Author(s): R. Wiff, J.C. Quiroz (Chile) and R. Scott (United Kingdom)
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Reports on abundance and biological information of toothfish in Division 58.4.4 a & b by Shinsei maru No. 3 in 2013/14 season
trotline system were made in the blocks. Total catch of Dissostichus eleginoides (excluding those tagged ... . Fish in single-hooked and good physical condition constituted 72.6 and 74.1 % of the total catch ... were made in the blocks. Total catch of Dissostichus eleginoides (excluding those tagged and released ... in single-hooked and good physical condition constituted 72.6 and 74.1 % of the total catch in the block ...
Meeting Document : WG-SAM-15/14 : Author(s): Delegation of Japan
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On the problem of Soviet krill fishery allocation and intensity in the area of Elephant Island in the season of 1988-1989
. Though the catch of the USSR in the above-mentioned season reached maximum, the total fishery intensity ... . The highest catch per-unit-of-effort was observed in January (7.7 t per hour of trawling in average ... 59°-62°S and 53°-57°W during the period from 21.11.1988 to 25.03.1989, are analysed. Though the catch ... was low and only 1 standard vessel operated in the area during 40% of the period. The highest catch per ...
Meeting Document : WG-CEMP-92/30 : Author(s): V.A. Sushin and A.S. Myskov (Russian Federation)
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The random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the waters surrounding Heard Island (Division 58.5.2) for 2017
than that of 2016 and 2.5 times the average. For the managed by-catch species, unstratified densities ... Bathyraja sp. (skates) was higher than both 2016 and the long term average. The catch of invertebrates ... times the average. For the managed by-catch species, unstratified densities were lower than the average ... ) was higher than both 2016 and the long term average. The catch of invertebrates in the 2017 survey was 70 ...
Meeting Document : WG-FSA-17/14 Rev. 1 : Author(s): G.B. Nowara, T.D. Lamb and P. Ziegler
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Informe de la campaña de investigación biológico-pesquera de palangre de fondo en aguas del Atlántico sur-oriental y en los sectores Atlántico e índico de la CCRVMA (Subárea 48.6 y División 58.4.4)
1500 and 2000 metres. Catches in numbers were widely dominated by toothfish (D. eleginoides) with 2822 ... individuals). The total catch in weight was 21.43 t, of which 20.502 t (95.63 %) corresponded to toothfish ... of the catches, and the relative abundance and the size structure of D. eleginoides found in each of them ... 90 cm of total length. The stratum with highest catch per unit effort was that of 600-800 m though ...
Meeting Document : WG-FSA-98/48 : Author(s): L.J. López Abellán y J.F. González Jiménez
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Stable isotope analysis of tissue samples to investigate trophic linkages of Antarctic toothfish (Dissostichus mawsoni) in the Ross and Amundsen Sea regions
each of four by-catch species (grenadiers, icefish, moray cods and deep-sea cod) were also analysed ... , the predator-prey polygon largely enclosed the toothfish isotope values, indicating that the by-catch species ... isotope data were inconsistent for the northern seamount region because δ 13 C for by-catch species were ... each of four by-catch species (grenadiers, icefish, moray cods and deep-sea cod) were also analysed ...
Meeting Document : WG-EMM-14/50 : Author(s): M.H. Pinkerton, S.J Bury, J.C.S. Brown, J. Forman and A. Kilimnik (New Zealand)
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An assessment of the impact of krill fishery on penguins in the South Shetlands
information on fishery, penguins and krill biomass. The catch is very low in December followed by roughly ... ), the present catch rate (≤10 x103t/10-day) is smaller by one or more orders of magnitude within the localized ... areas. Hence, from the view point of the quantity of catches as well, present fishery is very unlikely ... on fishery, penguins and krill biomass. The catch is very low in December followed by roughly equivalent ...
Meeting Document : WG-KRILL-93/07 : Author(s): T. Ichii, M. Naganobu and T. Ogishima (Japan)
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CCAMLR measures regulating the tagging of Dissostichus species, metrics used to assess vessel tagging performance, the potential for some anomalous results, and general recommendations on tagging; a view from the hauling room
rate within sub areas of the assessed ASD. The current level of two tonnes of Dissostichus catch ... that at low levels of tagging, equating to between 2 and 10 t of Dissostichus catch, there is a strong ... rate within sub areas of the assessed ASD. The current level of two tonnes of Dissostichus catch ... that at low levels of tagging, equating to between 2 and 10 t of Dissostichus catch, there is a strong ...
Meeting Document : WG-FSA-11/50 : Author(s): J.M. Fenaughty (New Zealand) and J. Brown (United Kingdom)
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The random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the waters of Heard Island (Division 58.5.2) for 2016
was five times that of 2015 and nearly three times the average. For the managed bycatch species catch rates ... and the long term average. The catch of invertebrates in the 2016 survey was two times higher than average, due ... that of 2015 and nearly three times the average. For the managed bycatch species catch rates were lower than ... . The catch of invertebrates in the 2016 survey was two times higher than average, due in part to the greater ...
Meeting Document : WG-FSA-16/23 : Author(s): G.B. Nowara, T.D. Lamb and D.C. Welsford