Resultados de la búsqueda

1. Target strengths of krill at 136 and 20 kHz

   and using trawling-acoustic method. Ensonification of encaged live krill. For aggregations with mean ... 136 kHz. For aggregations with mean lengths in the range (43,47)mm the mean single-krill target ... strengths are in the range (-71,-77) dB at 20 kHz. Trawling-acoustic method. For aggregations with mean ... obtained. At the same frequency for aggregations with mean lengths in the range (41,47) mm the mean single ...

   Meeting Document : WG-KRILL-91/29 : Autor(es): S.M. Kasatkina (USSR)

2. The effect of temporal variability on power analysis predictions for Adélie penguin CEMP parameters at Béchervaise Island

   another and it has major ramifications on power estimates. Increasing the variability associated with ... results based on occupied nest counts with increasing levels of temporal variability (% CV) are applicable ... (5.2 – 6.7%). For example, with a 10 year monitoring program it is possible to detect fixed increases ... or decreases larger than 2% each year with more than 80% power. Increasing the duration of the ...

   Meeting Document : WG-EMM-03/49 : Autor(es): L.M. Emmerson and C. Southwell (Australia)

3. Progress report on the Korean exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2 in 2016/17 season

   various scientific researches. The total catch of D. mawsoni was 153,084 kg with 4,360 individuals. The ... 58.4.2, tagging rate with tag overlap statistics of D. mawsoni were 5.22 with 88% and 5.51 with 74 ... ) were used along with protective frames that would prevent the CTD connector from being damaged. Water ...

   Meeting Document : WG-SAM-17/27 : Autor(es): S.-G. Choi, J. Lee, J. Lee and D. An

4. Design of the used on Russian vessels Sparta and Chio Maru No. 3 bottom trot-line for toothfish fishing

   Abstract:  This work is prepared in accordance with recommendation of 4.18 WG-SAM-12 about ... lines with hooks and weight. This design allows avoiding fish injuries outside the mouth cavity and ... catching of VME-organisms to a large extent, because at the presented design of a longline each line with a ... weight (“barandija”) has bunch of 5-10 snoods with hooks and length of a snood is 30-40 cm or sometimes ...

   Meeting Document : WG-FSA-12/22 : Autor(es): I.G. Istomin, V.V. Akishin, V.A. Tatarnikov and I.I. Gordeev (Russia)

5. Revised research longline fishing proposal for Dissostichus spp. in Subarea 48.2, second season

     recommendations adopted, coordination was achieved with the Delegation of Ukraine to develop research in the ... , operational agreements were reached. In addition, Chile expressed its interest to further discuss with Ukraine ... , with the assistance of the Secretariat, strategies to improve both proposals, and contribute with a ...

   Meeting Document : WG-FSA-17/27 : Autor(es): Delegation of Chile

6. Stock assessment of the Patagonian toothfish, Dissostichus eleginoides, harvested by the French fishery at Kerguelen Islands (Division 58.5.1 of the CCAMLR)

   Island (division 58.5.1 of the CCAMLR) was undertaken with the modeling software CASAL, using different ... iteratively estimated process error was applied to the length frequency data. With an initial biomass of about ... 200,000 tons, the modeling tends to present results which are consistent with the stock assessments ... biomass long-term projection, done for the Patagonian toothfish with a simulated 5,100 tons catch by long ...

   Meeting Document : WG-FSA-11/28 : Autor(es): A. Relot-Stirnemann (France)

7. Net-based verification of acoustic techniques used to identify Antarctic krill

   ' using an SDWBA-derived range for Sv120-3, (iii) '2 freq 2-16'- with an Sv120-38 range ... of 2-16 dB and (iv) '2 freq 2-12'-with an Sv120-38 range of 2-12 dB The '3 freq model ... orientation distributions for the two cruises were estimated with the SDWBA model, with cruise specific ... orientation distributions applied the performance of the '3 freq model' was comparable with the two ...

   Meeting Document : SG-ASAM-09/04 : Autor(es): J. Watkins and S. Fielding (United Kingdom)

8. Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia

   , with killer whales present on 3.8% and sperm whales on 17.7% of lines. Killer whales appear in pod ... . Most interactions from sperm whales occur during May at the start of the season with the sightings ... consistent with no obvious pattern between months. Both species demonstrate an east to west migration ... throughout the season that is not related to the pattern of fishing effort. By comparing catch rates with and ...

   Meeting Document : WG-FSA-10/P06 : Autor(es): J. Moir Clark and D.J. Agnew

9. Krill population dynamics at South Georgia: implications for ecosystem-based fisheries management

   with krill population size structure over the same period from predator diet data, were used with a ... recruitment in each year showed the greatest correlation with the acoustic series. The results are consistent ... with a krill population with allochthonous recruitment entering a retained adult population; i.e ...

   Meeting Document : WG-EMM-10/P08 : Autor(es): K. Reid, J.L. Watkins, E.J. Murphy, P.N. Trathan, S. Fielding and P. Enderlein

10. Temporal variability in Adélie penguin CEMP parameters and their response to changes in prey availability

    , foraging trip duration, meal mass and fledgling weights. Some years had either good breeding success with ... heavy fledglings or poor breeding success with light fledglings while others had a lack of concordance ... a season with long foraging trips during the guard period, relatively short trips during the crèche ... response parameters was much greater than was observed in the two years with concurrent krill abundance. If ...

    Meeting Document : WG-EMM-12/22 : Autor(es): L. Emmerson and C. Southwell (Australia)

Páginas