Resultados de la búsqueda
-
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
-2005 the upper arm of the gear selectivity function for trawlers is estimated using a two-stage process ... Abstract: Length-dependent fishing selectivity for trawlers fishing for the Patagonian toothfish ... (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 ...
Meeting Document : WG-FSA-05/65 : Autor(es): S.G. Candy (Australia)
-
A RISK ASSESSMENT TO ADVISE ON STRATEGIES FOR SUBDIVIDING A PRECAUTIONARY CATCH LIMIT AMONG SMALL-SCALE MANAGEMENT UNITS DURING STAGE 1 OF THE STAGED DEVELOPMENT OF THE KRILL FISHERY IN SUBAREAS 48.1, 48.2, AND 48.3.
) and S. Hill (United Kingdom) Title: A RISK ASSESSMENT TO ADVISE ON STRATEGIES FOR SUBDIVIDING A ... . (2008) to assess the risks and tradeoffs associated with various management strategies for subdividing ... increase in some SSMUs. In general, the risks of depleting penguin and fish populations are greater for ... Fishing Option 3 than for Fishing Option 2 because the former option requires slightly more fishing in ...
Meeting Document : WG-EMM-08/30 : Autor(es): G.M. Watters, J.T. Hinke (USA) and S. Hill (United Kingdom)
-
Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia
and 4 animals, and have a relatively lower impact on catches, depressing CPUE by up to 20%. Sperm ... Paper Title: Estimating the impact of depredation by killer whales and sperm whales on longline ... fishing for toothfish (Dissostichus eleginoides) around South Georgia Abstract / Description: Observer ... data collected on longliners between 2003 and 2009 were analysed to look at the levels of depredation ... , mean pod size for killer whales actually dropped (significantly: individual t-tests on years 2003 and ... types were killer whales, sperm whales and both species. An overall correction factor for the year can ... over the years 2003 to 2006, followed by two years of low interaction, and finally another year of ... , followed by two years of low interaction, and finally another year of very high interaction in 20009. The ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 163–178 : Autor(es): Moir Clark, J. and D.J. Agnew
-
Hacia una mejor comprensión del concepto de ordenación en la CCRVMA
en las pesquerías actuales................... 20 i) Los primeros años – Enfoques tradicionales de la década de 1980 ... (W.K. de la Mare) ............................................................... 20 ii) Enfoques ... ).................................. 30 (ii) 3.3 La aplicación directa del enfoque ecosistémico – Mortalidad incidental ... la pesca de palangre), el enredo de animales en los desechos marinos, y el efecto de la pesca en el lecho ...
Document : Site Section: Publications
-
Preliminary assessment of long-term yield of Patagonian toothfish (Dissostichus eleginoides) for the Heard Island region (CCAMLR Division 58.5.2) based on a random stratified trawl survey in June 2005
58.5.2 in the vicinity of Heard Island in June 2005 to provide the information for an assessment of short ... for the area of Division 58.5.2 to the west of 79°20’ E using standard CCAMLR methods. It also ... function for the future projections based on full selection of adult fish, and (iv) consequence of reducing ... long-term yield of Patagonian toothfish (Dissostichus eleginoides) for the Heard Island region (CCAMLR ...
Meeting Document : WG-FSA-05/30 : Autor(es): A.J. Constable, T. Lamb and R. Williams (Australia)
-
Best practice seabird by-catch mitigation for Spanish-rig longline vessels with emphasis on line weighting regimes
between weights on longlines (30 m, 40 m and 50 m) and mass of the weights (4 kg, 6 kg and 8 kg) on sink ... mitigation for Spanish-rig longline vessels with emphasis on line weighting regimes Approval: Approved ... throughout the southern hemisphere and has been the source of a large number of seabird fatalities. An ... experiment was conducted on a chartered Spanish-rig vessel to improve the sink rate of longlines to reduce ...
Meeting Document : WG-FSA-06/22 : Autor(es): G. Robertson (Australia), C.A. Moreno (Chile), B. Wienecke (Australia), P. Gandini (Argentina), G. McPherson (Australia) and J.-P. Seco Pon (Argentina)
-
Report on fishing effort and seabird interactions during the season extension trials in the longline fishery for Dissostichus eleginoides in Statistical Division 58.5.2
Abstract: CCAMLR XXXIV (para. 5.68) endorsed new pre-season (1-14 April) and post-season (15-30 ... November) trial season extensions, in addition to existing pre-season (15-30 April) and post-season (1-14 ... -FSA-15/48). Australia undertook to report annually on the results of all the trials. This paper ... presents information on fishing effort and seabird interactions with fishing gear collected during the ...
Meeting Document : WG-FSA-17/20 : Autor(es): T. Lamb
-
Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia
, depressing CPUE by up to 20%. Sperm whales have been more frequently encountered in recent years, occurring ... and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia ... Abstract: Observer data collected on longliners between 2003 and 2009 were analysed to look at ... macrocephalus) around South Georgia. Since 2003, cetaceans have been observed on 22% of 14 300 observed lines ...
Meeting Document : WG-FSA-10/P06 : Autor(es): J. Moir Clark and D.J. Agnew
-
Evaluation of the effects of illegal, unregulated and unreported (IUU) fishing on the legal catch of fisheries for Dissostichus eleginoides
limit derived from an assessment based on the 2001 WG-FSA assessments, which is approximately 3 000 ... Abstract: CCAMLR currently establishes catch limits each year for Patagonian toothfish ... year to compensate for the effects of historical levels of IUU catches. To date, the rate of reduction ... catch was estimated using the GYM and applied as the legal catch limit for the following year, assuming ...
Meeting Document : WG-FSA-02/69 : Autor(es): A.J. Constable (Australia)
-
A Petersen tag-recapture preliminary population assessment of Antarctic toothfish in CCAMLR Subarea 48.4 based on data for the 2009–2014 fishing seasons
tagging returns to be 1,027 tonnes during the 2013/14 season. In previous years the harvest rate used for ... tag-recapture preliminary population assessment of Antarctic toothfish in CCAMLR Subarea 48.4 based on ... data for the 2009–2014 fishing seasons Approval: Approved ...
Meeting Document : WG-FSA-14/30 Rev. 1 : Autor(es): V. Laptikhovsky, R. Scott, M. Söffker, T. Earl and C. Darby (United Kingdom)