Resultados de la búsqueda
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Sampling toothfish from longlines with unequal probabilities
Abstract: To obtain a representative sample of the catch taken by toothfish longliners, CCAMLR ... observers are recommended to sample a quota of the first 30 fish that are caught during a sampling session ... . Since toothfish are often aggregated on a line, this means that fish within aggregations are sampled ... number of baskets taken while hauling a line, observers can use this to establish a point at which to ...
Meeting Document : WG-FSA-03/85 : Autor(es): J.R. Ashford (USA)
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Domain 1 MPA designation process: data sharing and future enhanced work
Abstract: During the last years, a large amount of information was gathered and shared in one ... unique project for the development of a representative system of MPAs in Domain 1. This process ... integrates, compiles, analyses and exposes a large amount of information, not only contributing to the best ... science available but also providing a platform for the sharing and visualization of information, further ...
Meeting Document : WG-EMM-16/73 : Autor(es): M. Santos, A. Capurro and C.A. Cárdenas
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Information Note for the Spatial Management Workshop and WG-EMM
M11 motorway, on the outskirts of Cambridge. There are a limited number of on-site parking spaces ... London Stansted. There is also a direct line from Norwich to Cambridge. From Cambridge train station to ... BAS you can use the Universal bus (marked with a “U”) which runs between Eddington (the new north-west ... : 20 minute service 08:00 to 18:30 (no Sunday service). For a route map see here. Tickets cost £2 ...
Page : Site Section: Meetings
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Estimating fishing gear selectivity for Patagonian toothfish (Dissostichus eleginoides) caught by trawlers on the Heard Island plateau region (Division 58.5.2) using trawl and longline length frequency data and forward-calculated continuation ratios
(Dissostichus eleginoides) on the Heard Island Plateau (Division 58.5.2) was modelled as a 3-segment linear ... selectivity and a plateau section in between for the length range where fish are assumed fully selected. Using ... -2005 the upper arm of the gear selectivity function for trawlers is estimated using a two-stage process ... . In the first stage I estimate a parameter for each 40 mm wide length bin from the fit of a binomial ...
Meeting Document : WG-FSA-05/65 : Autor(es): S.G. Candy (Australia)
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Cephalopods and mesoscale oceanography at the Antarctic polar front: satellite tracked predators locate pelagic trophic interactions
cephalopod stocks in the Antarctic Polar Frontal Zone (PFZ). This is a vast, remote region where large ... monitor foraging at sea in January-March 1994. A foraging area at the PFZ, north of South Georgia, was ... located, an acoustic survey undertaken and a fixed station established where acoustic targets were found ... . A net survey was carried out with a commercial pelagic trawl, a rectangular midwater trawl 25 m2 ...
Meeting Document : WG-EMM-96/12 : Autor(es): Murphy, E.J., Trathan, P.N., White, M.G., Bone, D.G., Hatfield, E.M.C., Rodhouse, P.G., Prince, P.A., Watkins, J.L.
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Selectivity of standard polish commercial trawl codends on Antarctic fishing grounds
Abstract: steelon codends used in commercial fishery, with a nominal mesh size A = 80 mm and A ... = 100 mm, made of double twines with a thickness of 4.2 mm. The studies covered 6 major fish species. 1 ... satisfactory. 2. Scotia Sea icefish, Chaenodraco wilsoni, and Chionodraco rastrospinosus exhibit a lower ... solution to the problem of ensuring selectivity of codends at a sufficiently good level seems possible as a ...
Meeting Document : SC-CAMLR-VII/BG/11 : Autor(es): J. Zaucha (Poland)
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On the state of Champsocephalus gunnari stock in Subarea 48.3 and methods of its assessment
2000 showed clearly a necessity to revise the methods of icefish (which is near-bottom and pelagic fish ... species) biomass assessment based on the results of bottom trawl surveys. A question on unreliability of ... ) both during the period of the icefish fishery in 1980s and after its ceasing in 1990s. In all cases, a ... , catch per unit effort (CPUE), and calculations by VPA showed a clear underestimation of the stock (Table ...
Meeting Document : WG-FSA-00/45 : Autor(es): K. Shust, V. Senioukov, P. Gasiukov and A. Kozlov (Russia)
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e-cc-xxiv-a4.pdf
... Installation of a wireless network at the CCAMLR Headquarters ..................... 133 Commission meeting ... Item 3 (Finance and Administration) of its Agenda (CCAMLR-XXIV/1, Appendix A) to SCAF. The ... STATEMENTS FOR 2004 3. The Committee noted that a full audit had been carried out on the 2004 Financial ... Committee noted that the Commission had decided in 1994 that a full audit should be performed on average
application/pdf attached to:SCAF-05
Meeting Report : SCAF-05
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Towards developing diagnostics tools for fishery stock assessments
Abstract: In this paper, we describe developments towards a set of standard diagnostic principles ... and tools used to characterise assessment models. CCAMLR has yet to develop a set of recommended ... statistical diagnostics tools to support their evaluations. While there are a number of standard visual and ... statistical diagnostics available for integrated assessments, their sufficiency to evaluate if a model is well ...
Meeting Document : WG-SAM-15/26 : Autor(es): P. Ziegler, P. Burch, A. Constable (Australia), C. Darby (United Kingdom), A. Dunn (New Zealand), C. Jones, D. Kinzey (USA), S. Mormede (New Zealand) and D. Welsford (Australia)
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Using production models to assess the stock of Paralomis spinosissima around South Georgia Island
Abstract: Four production models were fit to a time series of daily catch per unit effort (CPUE ... considered recruitment in different ways. Model 1 contained a linear recruitment function; Model 2 had ... constant recruitment; Model 3 contained a Beverton-Holt recruitment function, and Model 4 used a Ricker ... abundance (N0), an estimate of the scaling coefficient relating abundance to CPUE (q), and a recruitment ...
Meeting Document : WG-FSA-93/23 : Autor(es): George Watters (USA)