Результаты поиска

1. The use of predator-derived krill length-frequency distributions to calculate krill target strength

   Paper Title:  The use of predator-derived krill length-frequency distributions to calculate krill ... target strength Abstract / Description:  The relationship between krill abundance and predator ... krill sampled from the diet of predators to provide a length-frequency distribution of krill at times ... calculated from acoustic data. Changes in the lengthfrequency distribution of krill over a period of a few ... additional estimates of krill abundance at the beginning and end of the Antarctic summer in conjunction ... ,,,) and in the diet of Antarctic fur seals (TSpred) after the application of a correction factor based on ... relationship given by Morris et al. (1988). After measuring krill in a sample to the nearest millimetre, the ... . By assessing the krill biomass at either end of the austral summer, in addition to the normal ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 155–163 : Автор(ы): Reid, K. and A.S. Brierley

2. Remarks on the natural mortality of Dissostichus eleginoides in Subarea 48.3

   Paper Title:  Remarks on the natural mortality of Dissostichus eleginoides in Subarea 48.3 ... Abstract / Description:  Natural mortality (M) of Dissostichus eleginoides was calculated after Sparre ... (1989) from the data obtained during the Chilean longline fishery in Subarea 48.3 (N = 7 848. The von ... differences in M between fishing sites. On the other hand, when comparing various mean values of M for the ... ) of Dissostichus eleginoides was calculated after Sparre (1989) from the data obtained during the ... Chilean longline fishery in Subarea 48.3 (N = 7 848). The von Bertalanffy growth parameters obtained ... sites. On the other hand, when comparing various mean values of M for the different cases, it was ... straight hooks No. 22. The general mean value of M calculated for the 44 analysed situations was 0.14 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 21–30 : Автор(ы): Moreno, C.A. and P.S. Rubilar

3. Integration of CPUE data into assessments using the Generalised Yield Model

   Paper Title:  Integration of CPUE data into assessments using the Generalised Yield Model Abstract ... / Description:  For the last three years, CCAMLR's Working Group on Fish Stock Assessment (WG-FSA) has ... accorded high priority to the development of methods of integrating different indicators of stock status ... into assessments using the Generalised Yield Model (GYM). In this paper, we propose a method, based on ... beginning of a projection trial are drawn from a lognormal distribution estimated from the time series of ... through the 95% confi- dence limits of the annual standardised CPUEs (after rescaling). In an example ... ), paragraph 3.144. The method itself is described in the next section, after which a series of goodness-of ... distributions, the weights used for test is two-sided, with departures at either end simulation n should be ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 65–74 : Автор(ы): Kirkwood, G.P. and A.J. Constable

4. Observations of fishing operations on a krill trawler and distributional behaviour of krill off Wilkes Land during the 1985/86 season

   of krill off Wilkes Land during the 1985/86 season Abstract / Description:  Japanese krill fishing ... operations were observed on board a commercial vessel and the actual operation described in detail. ‘Fish ... -finder’ was most useful in detecting swarms, while sonar was used to judge the towing direction. The size ... sample taken from the mouth of the net and the other from the end of net. After the comparison, of ... rely. When swarms were small and scattered (generally in the beginning of the season), sonar was ... time tended to be a little higher during the half-light period after sunset. In late-summer (latter ... condensation - aggregating in dense swarms during the daytime and migrating to the surface after sunset ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 335-368 : Автор(ы): Ichii, T.

5. Draft integrated stock assessment for the Heard Island and McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.2

   the end of 2019 and observations until the end of 2018. The updated assessment model is based on the ... model with catch data to 2019 and observations to the end of 2018 including new ageing data from the ... estimated SSB status at the end of 2019 was 0.51 (95% CI: 0.49-0.53). The smaller biomass meant that the ... target level at the end of the 35-year projection period, a pattern that is driven by the switch of the ...

   Meeting Document : WG-FSA-2019/32 : Автор(ы): P. Ziegler

6. Off the hook: an informational video for Alaska longliners

   most Alaska longlines beginning in 2004. Author(s):  E.F. Melvin and D. Mercy (USA) Title:  Off the ... Abstract:  The video portrays a variety of seabird species in flight and interacting with longline ...

   Meeting Document : WG-FSA-03/19 : Автор(ы): E.F. Melvin and D. Mercy (USA)

7. Proposal to amend the fishing season for longline vessels fishing for Dissostichus eleginoides in Subarea 48.3 and trial two further 5 day season extensions

   of the past two seasons and proposes moving the beginning of the fishing season to the 21st April ... Abstract:  Following the successful earlier start of the Dissostichus eleginoides fishing season ... in Subarea 48.3 (26th April in 2009/10 and 21st April in 2010/11) this paper summarises the results ... with a further two five day extensions over the next two years to the 16th and then the 11th April ...

   Meeting Document : WG-IMAF-11/09 : Автор(ы): J. Brown (United Kingdom)

8. Proposed observer logbooks for the 2019 longline and finfish trawl fisheries

   adoption for the beginning of the 2019 fishing season. Author(s):  CCAMLR Secretariat Title:  Proposed ... Abstract:  The first CCAMLR Scheme of International Scientific Observation workshop (WS-SISO) was ... fisheries (see SC-CCAMLR-XXXVI/08). This paper summarises the proposed changes to the observer  logbooks for ... the longline and finfish trawl fisheries, and outlines their introduction leading up the proposed ...

   Meeting Document : WG-FSA-17/03 : Автор(ы): CCAMLR Secretariat

9. Dynamics of abundance and state of Notothenia rossii rossii stocks on the Kerguelen Island shelf

   Kerguelen Island shelf from the beginning of the fishery to 1984 has been examined.Total and commercial ... Abstract:  Population structure and dynamics of the abundance of Notothenia rossii rossii on the ... calculation by mathematical modelling.Comparative estimates of the abundance and recruitment-remainder ratio ... for the period of 1970-1984 have been presented, the average age of recruitment has been stated ...

   Meeting Document : WG-FSA-90/41 : Автор(ы): P.B. Tankevich and V.A. Shlyakhov (YugNIRO, USSR)

10. Variation in the distribution of Antarctic krill Euphausia superba around South Georgia

    krill were found in Weddell Sea water and that the length-frequency distributions at the western end of ... the island contained more large krill that those from the eastern end of the island. We consider such ... experience different conditions during transport to South Georgia and at either end of the island. Author(s ... Abstract:  Between 1980 and 1997 British Antarctic Survey carried out 11 cruises in the region of ...

    Meeting Document : WG-EMM-97/47 : Автор(ы): Daly, H.I., Murray, A.W.A., Watkins, J.L.

Страницы