Resultados de la búsqueda
-
Revised research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in Subarea 48.6 by South Africa and Japan
order to identify an appropriate stock unit in the future. The stock sizes for research blocks were ... two areas for block 48.6_2 by latitude of 55.2°S to estimate the biomasses of D. mawsoni because the ... recaptures were concentrated in the southern area. We considered that recaptures for 3 years at liberty is ... in 2016. We have used extracted data provided by CCAMLR Secretariat in this late August for the ...
Meeting Document : WG-FSA-16/32 Rev. 1 : Autor(es): Delegations of Japan and South Africa
-
Estimates of the tag loss rates for single and double tagged toothfish (Dissostichus mawsoni) fishery in the Ross Sea
tagged fish having at least one tag remaining after one year at liberty; 98.9% after two years at liberty ... periods of up to six years at liberty. The loss rate for double tags had been incorrectly derived and ... -estimated for double tagged fish in the first four years and under-estimated after that. However, the tag ... (95% C.I.s 0.027–0.052) tags per year. For double tagged fish this corresponds to 99.5% of double ...
Meeting Document : WG-SAM-11/18 : Autor(es): A. Dunn, M.H. Smith (New Zealand), D.J. Agnew (UK) and S. Mormede (New Zealand)
-
Deployment of research hauls in the exploratory fisheries for Dissostichus spp. in Subareas 48.6 and 58.4 in 2010/11
Abstract: In November 2010, the Secretariat allocated 1405 random starting positions for research ... participate in exploratory fisheries for Dissostichus spp. in Subarea 48.6 and Divisions 58.4.1, 58.4.2 and ... provided with three random lots of starting positions for research hauls in each SSRU. These random lots ... were provided by the Secretariat, on request from the notifying Member or its vessel, and prior to the ...
Meeting Document : WG-SAM-11/04 : Autor(es): Secretariat
-
Background information to support development of a feedback management strategy for the krill fishery in Subarea 48.1
in ice, which acts as an environmentally-driven constraint on the duration of the fishing season in ... Abstract: Here we compile eight vignettes that, together, provide the background data and ... information needed to support development of a feedback management strategy for the krill fishery in Subarea ... 48.1. In this compilation, we provide support for combining SSMUs into groups of SSMUS (gSSMUs) to form ...
Meeting Document : WG-EMM-16/45 : Autor(es): Antarctic Ecosystem Research Division, Southwest Fisheries Science Center and NOAA Fisheries
-
Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.1
least 3 years with the same sample size as decided at the last CCAMLR meeting for the current research ... while reducing the inconveniences for operation. Similarly, strict application of the move-on rule ... trigger level of 1 500 kg for the catch of Macrourus spp. in two 10-day periods provided in the paragraph ... observer data. The stock size estimates for research blocks were revised following advice in the last WG ...
Meeting Document : WG-FSA-13/38 : Autor(es): Delegation of Japan
-
Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.2
least 3 years with the same sample size as decided at the last CCAMLR meeting for the current research ... reducing the inconveniences for operation. Similarly, strict application of the move-on rule could ... level of 1 500 kg for the catch of Macrourus spp. in two 10-day periods provided in the paragraph 6 of ... observer data. The stock size estimates for the research block (5842E) was revised following advice in the ...
Meeting Document : WG-FSA-13/39 : Autor(es): Delegation of Japan
-
Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Subarea 48.6
least 3 years with the same sample size as decided at the last CCAMLR meeting for the current research ... of the austral summer sea-ice during past 10 years in the current research blocks and an additional ... and observer data. The stock size estimates for research blocks were revised following advice in the ... such a way that the numbers of tag recoveries in the 2016 season shows an approximately 0.3 of ...
Meeting Document : WG-FSA-13/37 : Autor(es): Delegation of Japan
-
A development of catch per unit effort (CPUE) trends that may be useful in stock assessment for Dissostichus mawsoni in Subarea 48.6
Abstract: Catch per unit effort (CPUE) is developed for subarea 48.6 from data covering 2004/2005 ... to 2017/2018 fishing seasons. General Linear Models and General Linear Mixed Models were applied to ... models for Dissostichus mawsoni (D. mawsoni) in the area. The entire fishing area in 48.6 which is ... covered by various research blocks is treated as a single area and the developed trends are for the entire ...
Meeting Document : WG-SAM-2019/37 : Autor(es): S. Somhlaba, K. Leach, M. Bergh, T. Okuda, T, IIchi, R. Sarralde and T. Namba
-
Descriptive analysis of acoustic data collected during the 2003 exploratory fishery for toothfish in the Ross Sea
conducting acoustic surveys for toothfish and rattails in the Ross Sea. Acoustic data were collected during ... . These analyses focused on the subset of acoustic data collected when setting longlines so acoustic ... recordings, 68 were considered suitable for acoustic analysis. Poor data quality was associated with strong ... winds and/or high seas: conditions that led to bubble interference on the hull-mounted transducer. Other ...
Meeting Document : WG-FSA-03/28 : Autor(es): R.L. O’Driscoll and G.J. Macaulay (New Zealand)
-
Timescale of ovarian maturation in Notothenia coriiceps (Richardson); evidence for a prolonged adolescent phase
for about one year. The results from a two year study at Signy Island indicate that this adolescent ... phase lasts for about four years. There is also some evidence to indicate that not all sexually mature ... fish spawn each season. Two reproductive strategies are considered, one where adverse conditions are ... accompanied by a failure to spawn and an alternative where fecundity is controlled by the number of small ...
Meeting Document : WG-FSA-93/26 : Autor(es): Inigo Everson (United Kingdom)