Resultados de la búsqueda

1. Results of E.L. Holmberg 1997 fish survey in Subarea 48.3

   of stations in a nested ANOVA model. No significant changes in the mean densities of several species ... Abstract:  The survey comprised 51 bottom trawl hauls taken in subarea 48.3. Of these, one was ... discarded due to net damage. About 80% of the hauls were taken in the shelf of South Georgia Islands (41 ... ) and the remaining in the Shag Rocks area (9); 64% of the hauls were intended as replicates of the ...

   Meeting Document : WG-FSA-97/47 : Autor(es): Prenski, B., Calcagno, J., Marschoff, E.R., Gonzalez, B.

2. Reduced bait loss and bycatch of seabirds in longlining by using a seabird scarer

   , bycatch of seabirds on longlines is a problem in certain seasons and areas. Birds feeding on the bait ... during setting of the gear might cause considerable bait loss and occasional hooking of birds might ... eventually give high mortalities considering the large amounts of hooks used. Both from a fishery and bird ... a seabird scarer in the Norwegian longline fishery. The scarer, a line with streamers trailing ...

   Meeting Document : WG-IMALF-94/09 : Autor(es): S. Løkkeborg and Å. Bjordal (Norway)

3. Annual migrations of pelagic fish stocks into a krill hotspot

   Abstract:  We report here on the existence of seasonal fish migrations into a krill hotspot ... , utilized both by central place foragers and the industry. We do not have trawl samples overlapping with the ... acoustic data, but the behaviour displayed suggests that the fish are planktivorous. Furthermore, the ... from krill on a single frequency. Trawl catches in the area during 2019 gave high densities of mackerel ...

   Meeting Document : WG-EMM-2019/33 : Autor(es): T. Klevjer

4. Ross Sea Environment and Ecosystem Voyage 2019

   Abstract:  New Zealand carried out a 40-day voyage to the Ross Sea from 8 January to 16 February ... 2019 using the research vessel Tangaroa. The purpose of this multi-disciplinary research voyage was to ... increase knowledge about key environmental and biological processes in the Ross Sea region of Antarctica ... and the Southern Ocean, and thereby improve understanding of ecosystem function and likely responses ...

   Meeting Document : WG-EMM-2019/38 : Autor(es): R.L. O’Driscoll, D. Bowden and M.H. Pinkerton

5. Krill biomass in Area 48 and Area 58: recalculations of FIBEX data

   / Description:  FIBEX acoustic and length frequency data held in the BIOMASS database were used to provide ... estimates of mean density and biomass for the Indian Ocean sector and the West Atlantic sector as well as ... estimates were calculated using the target strength relationships used at the original FIBEX acoustic ... workshop. Estimates for the different areas were also calculated using the target strength relationships of ... ., 1986 - p. 46), but no information was available for the Nella Dan. 2.1. 2 Acoustic Data Data were ... 41.4 mm for the cruise. Since no length frequency data were available for Kaiyo Maru, this TS value ... held in the BIOMASS database were used to provide estimates of mean density and biomass for the ... Indian Ocean sector and the West Atlantic sector as well as for FAO Statistical Area 41, and CCAMLR ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 157–181 : Autor(es): Trathan, P.N., D.J. Agnew, D.G.M. Miller, J.L. Watkins, I. Everson, M.R. Thorley, E. Murphy, A.W.A. Murray and C. Goss

6. An index of per capita recruitment

   recruitment (PCR) is proposed such that where R 1 is the proportion of age-l animals sampled in year y and M ... is the post-recruit mortality rate. The intent of the index is to facilitate investigation of ... reproductive success and the factors postulated to affect it. The formulation of PCR is based on the ... animals spawn; (iii) a representative sample of the population is available; and (iv) the proportion of ... that the ratio of PCR to R/S would be 0.317 if half of age-2 animals spawn and to 0.266 if no age-2 ... R/S showed no central tendency with lower values more common than higher values. The distribution ... equilibrium spawning population but has no effect on the ratio of PCR and R/S. (iv) Increasing the rate at ... where R1 is the proportion of age-l animals sampled in year y and M is the post-recruit mortality rate ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 179–196 : Autor(es): Hewitt, R

7. Developing layers for a Risk Assessment for Subarea 48.1 using data from at-sea sightings

   Abstract:  CCAMLR has endorsed the use of the Risk Assessment framework to apportion the krill ... catch limits in order to minimise the risk of the fishery to krill dependent predators. We plan to apply ... the risk assessment framework across Subarea 48.1 at various spatial and temporal scales, in order to ... identify the most appropriate way to spread catch limits for the krill fishery. The risk assessment ...

   Meeting Document : WG-EMM-2019/23 : Autor(es): V. Warwick-Evans, L. Dalla Rosa, E. Secchi, E. Seyboth, N. Kelly and P.N. Trathan

8. Krill biomass and density distribution in February–March 2002 in Subarea 48.3

   of the fact that no sustainable commercial aggregations are formed during critical period for animals ... Abstract:  Presented are the results of krill acoustic survey carried out by Russian RV Atlantida ... on the South Georgia shelf within the 500-m isobath. The survey was made during the period from ... February 14 to March 5, 2002. Average krill density in the survey area was estimated at 45.45 g/m2 and ...

   Meeting Document : WG-EMM-03/30 : Autor(es): S.M. Kasatkina and A.P. Malyshko (Russia)

9. Revisión del enfoque precautorio para garantizar el uso racional del recurso vivo Dissostichus eleginoides en la Subárea 48.3

   . This paper reviews the long-term decline in the size structure of Patagonian toothfish (Dissostichus ... eleginoides) observed in longline catches taken in the South Georgia Area (FAO Area 48.3). We note that from ... the start of the 2000s until now, longline fishing in the South Georgia area has targeted immature ... fish smaller than 100 cm. The issue of non-rational use of the Patagonian toothfish stock in Subarea ...

   Meeting Document : CCAMLR-38/31 Rev. 2 : Autor(es): Делегация Российской Федерации

10. Report on recent French catches of sea pens (Pennatulacea) in Lena Bank (CCAMLR sector 58.4.4b)

    Abstract:  Important catches of sea pens (Pennatulacea, NTW) in the 58.4.4b sector (Lena bank ... ) have been reported during the CCAMLR SAM Working Group 2018 (see WG-SAM-18/31 "Annual report of ... specimens have been collected according to the French protocol for benthic invertebrate survey, which ... includes the exhaustive collection of the organisms caught by the longlines (see WG-EMM-17/09). This report ...

    Meeting Document : WG-FSA-18/23 : Autor(es): A. Martin, J. Blettery and M. Eléaume

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