Resultados de la búsqueda

1. A multivariate approach to examining patterns in research fishing activities using the SSRU 88.2A–B North survey as an example

   criteria to assess the likelihood that a vessel is operating as would be expected in normal research ... activities”, further noting that a characterisation of fishing activities was also required in order to ... the time taken to haul a line as a metric, and estimate vessel effects associated with fishing events ... such as research surveys. Results showed that individual vessels exhibited significantly different ...

   Meeting Document : WG-FSA-16/46 : Autor(es): S. Mormede, A. Dunn, S.J. Parker, T. Earl, C. Darby, M. Söffker and O.R. Godø

2. A statistical method for analysing the extent of IUU fishing in CCAMLR waters: application to Subarea 48.3

   estimate the total number of days of IUU fishing that could occur during each year. For each IUU incident ... occurred. This was the time that elapsed between the FPV cruises that were immediately prior to and ... immediately subsequent to the incident, where these prior and subsequent cruises had not detected that same ... time that the vessel can have been present. 3. This theoretical maximum time was converted to actual ...

   Meeting Document : WG-FSA-02/4 : Autor(es): D.J. Agnew and G.P. Kirkwood (United Kingdom)

3. 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)

   be related to the beginning of migratory movements that make them inaccessible to fishing with bottom ... to increase length with depth seems to be somehow disturbed by inflections or alterations related to ... stratum with highest catch per unit effort was that of 600-800 m though absolute values varied between ... toothfish (D. eleginoides) with 2822 individuals (83.24 %). Macrourus carinatus was the second species in ...

   Meeting Document : WG-FSA-98/48 : Autor(es): L.J. López Abellán y J.F. González Jiménez

4. Morphometrics, maturity and movement of the Antarctic skates Amblyraja georgiana and Bathyraja eatonii in the Ross Sea

   . The regressions for these species should be used with caution. The length at 50% maturity for male A ... sexes combined. It is probable that large females are larger and heavier than males of the same size ... length at 50% maturity of male and female B. eatonii could not be accurately determined, but may be ... -area 88.1 over the 1999–2000 through 2001–02 seasons. Returns suggest some long-term survival, small ...

   Meeting Document : WG-FSA-02/42 : Autor(es): M.P. Francis and N.W. McL. Smith (New Zealand)

5. Assessment of toothfish in Subarea 48.3, 2006

   the region 3300 – 3600 t would be consistent with CCAMLR decision rules. Author(s):  D.J. Agnew, R ... 48.3. We provide sensitivity runs that include revised maturity and catch weighted proportion at length ... trends and construct a model that uses age-based observations, specifically estimates of catches at age ... derived from otolith examination of a random sample of the catch. 3. All the assessments suggest that the ...

   Meeting Document : WG-FSA-06/53 : Autor(es): D.J. Agnew, R. Hillary, M. Belchier, J. Clark and J. Pearce (United Kingdom)

6. Preliminary assessment of Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a survey in April–May 2003

   estimate for 2004 was 2,680 t. Initial tests of length at age assumptions indicated that using a specified ... that it may be appropriate to adjust estimates of cohort strength for catchability where possible. The ... length at age vector that did not include growth beyond 15 years had only small effects on projected long ... of the length distribution of the catches suggest that the two gears sample a similar range of sizes ...

   Meeting Document : WG-FSA-03/33 : Autor(es): A.J. Constable, C.R. Davies, R. Williams and T. Lamb (Australia)

7. Preliminary assessment of mackerel icefish, Champsocephalus gunnari, on the Heard Island Plateau (Division 58.5.2) based on a survey in April–May 2003

   steady yield if possible need to be explored further in the development of a management procedure that ... approximately 20% of the 2002 estimate. This decline in abundance is consistent with the passage of the strong ... the strength of this cohort will not be possible until the May 2004 survey is complete. The estimates ... ) implementations indicated that the GYM version provided slightly higher estimates of short-term yield. These ...

   Meeting Document : WG-FSA-03/32 : Autor(es): A.J. Constable, C.R. Davies, R. Williams and T. Lamb (Australia)

8. RESOURCES EVALUATION OF ANTARCTIC KRILL EUPHAUSIA SUPERBA DANA USING AREAL TRAWLING AND HYDRO-ACOUSTIC DATA

   . Traditional concepts of observation system concerning the resources of krill should be further developed with ... provided with probability methods and spatial analyses requiring knowledge of statistical distribution ... population densities have shown mixed rules of statistical distribution over its natural habitat. Data ... analyses procedures applied for trawling and hydro-acoustic sampling have to in compliance with the rules ...

   Meeting Document : WG-SAM-08/P01 : Autor(es): L.A. Kovalchuk (Ukraine)

9. Broadbandwidth total target strength measurements of Antarctic krill (Euphausia superba) from reverberation in a cavity

   , 2001, J. Acoust. Soc. Am. 109(6): 2587:2597]. From 18 February to 9 March 2002, mean total target ... strengths (??10log(??4?) t TTS), were measured from groups of 57 to 1169 krill (average standard length ... , Antarctica, and aboard R/V Yuzhmorgeologiya. Chirp pulses were sequentially transmitted with an ... -tank and the modulated reverberations were sensed bi-statically with three omnidirectional receivers ...

   Meeting Document : WG-EMM-02/49 : Autor(es): D.A. Demer and S. G. Conti (USA)

10. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2005/06

    fished. The 2006 D. mawsoni catch was the second highest on record with a total of 3388 t against a ... of the fishery by having fewer catch limits. This appeared to be moderately successful, with only one ... nine years in Subarea 88.1 and for five years in Subarea 88.2 with a large amount of data collected on ... combined catch limit of 3451 t. The subarea catch limit was almost reached in both Subarea 88.1 and 88.2 ...

    Meeting Document : WG-FSA-06/29 : Autor(es): S.M. Hanchet, M.L. Stevenson and A. Dunn (New Zealand)

Páginas