Resultados de la búsqueda

1. TARGET STRENGTH STUDIES ON ANTARCTIC SILVERFISH (PLEURAGRAMMA ANTARCTICUM) IN THE ROSS SEA

   Abstract:  Target strength (TS) determinations can be classified into several types: 1 ... free swimming fish in their natural habitat. A canvassing of the literature suggested that the type of ... study may influence the result. For example, some authors suggested that freezing the fish reduce the ... over-all backscatter of 30% (Sun et al. 1985), others that TS measurements on living fish ex situ would ...

   Meeting Document : SG-ASAM-09/10 : Autor(es): M. Azzali, I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi (Italy)

2. Pesca ilegal, no declarada y no reglamentada (INDNR)

   In the 1990’s IUU fishing for toothfish in the Convention Area was estimated to be over six times ... the catch reported by authorised fishing vessels. At that time, CCAMLR was aware that other Antarctic ... marine stocks had not recovered from overfishing in the 1970’s and identified that addressing IUU fishing ... was a critical need. Although it is believed that the level of IUU fishing in the Convention Area has ...

   Page : Site Section: Compliance

3. Differentiation of independent populations of Antarctic krill

   circulation. On the basis of the review, it is suggested that there is probably one composite population of E ... -populations is expected to correspond with the number of quasi-stationary cyclonic water circulations. At ... present, at least six stable cyclonic water circulations can be found and at least two or three of them ... may be habitats of independent krill sub-populations. A proposal is given for future studies into ... that in the Southern Ocean there is only one cyclonic circulation with its centre in the Weddell ... with five pairs of pleopods without setae). It is assumed that this path of development corresponds ... Weddell Drift, Le. is a part of the circulation in the Weddell Sea. It will be recalled that there are ... three of them may be habitats of independent krill populations. The possibility that conditions for ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 275-281 : Autor(es): USSR

4. Fishery Report: Champsocephalus gunnari (ANI) South Georgia (Subarea 48.3)

   Throughout this report the CCAMLR fishing season is represented by the year in which that season ended, e.g ... 1998 1 4 520 6 1999 1 4 840 265 2000 2 4 036 4 114 2001 5 6 760 960 2002 5 5 557 2 667 2003 4 ... population but are also likely to be biased by changes in factors such as the characteristics/number of ... hauls (N) and the number of fish measured (n) in each year at the top of each panel. Note that in 2010 ...

   Document : Site Section: Publications

5. Recomendación de iniciar discusiones sobre la manera de planificar y organizar la labor de la Comisión para la Conservación de los Recursos Vivos Marinos Antárticos (CCRVMA)

   Abstract:  In recent years, there has been an increase in the number and complexity of issues that ... issues concurrently. Australia recommends that, given discussions held during the CCAMLR Symposium, and ... ways to more effectively plan and organise the work of the Commission. Australia proposes that the ... -setting exercise. As such, Australia recommends that the Commission: agree that an improved approach to ...

   Meeting Document : CCAMLR-XXXIV/18 : Autor(es): Delegation of Australia

6. Diet of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea region, Antarctica

   . Overall, the diet of sub-adult toothfish was similar to that of adult toothfish, with a dominance of ... stomach contents of toothfish could be used to detect ecosystem change in the Ross Sea region, with a ... the Ross Sea continental slope (70°–73°S, 175°E–175°W). Variation of stomach contents with toothfish ... of baited autoline fishing gear was found to be nearly 11 times higher for icefish than for ...

   Meeting Document : WG-FSA-12/52 : Autor(es): D.W. Stevens, M.R. Dunn, M.H. Pinkerton and J.S. Forman (New Zealand)

7. Revised research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Subarea 48.6

   relatively consistent with that using the CPUE method (using Division 88.2H as a reference area) for ... , and also be more likely to detect tagged fish that had moved off research block to the continual slope ... reference area) were relatively consistent with the observed numbers for D. mawsoni in the block 48.6_2 for ... current research blocks for the second three-season research with the sample sizes re-estimated following ...

   Meeting Document : WG-FSA-15/16 Rev. 1 : Autor(es): Delegation of Japan

8. Antarctic fur seal predator performance indices for the South Shetland Islands 1987/88–2002/03

   rate (C2b) data were recalculated for 1997/98-2001/02 to facilitate comparisons between sites. Long ... survival (85.8%) and natality (74.3%) all indicated that 2002/03 was a season of poor reproductive ...

   Meeting Document : WG-EMM-03/54 : Autor(es): M.E. Goebel (USA)

9. Distribution, abundance and acoustic properties of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea

   500 m. A weak layer at about 80 m depth was associated with juvenile silverfish of 50–80 mm standard ... length. Acoustic backscatter strength from both silverfish and krill marks increased with increasing ... acoustic biomass of silverfish in the study area was 592 000 t (95% confidence interval 326 000–866 000 t ...

   Meeting Document : WG-FSA-10/P04 : Autor(es): R.L. O’Driscoll, G.J. Macaulay, S. Gauthier, M. Pinkerton and S. Hanchet

10. Considerations about managing the krill fishery at small spatial and temporal scales

    that krill demand from a range of predators in near-shore coastal habitats may only be met through ... managing the krill fishery at small temporal and spatial scales. We highlight that the devil is in the ... vulnerable habitats. A body of research will be fundamental to understanding how to move beyond the current ... . Repeated acoustic assessments, ongoing research, couple with closed coastal areas has the potential to lead ...

    Meeting Document : WG-EMM-2019/22 : Autor(es): P.N. Trathan, V. Warwick-Evans and E. Young

Páginas