Resultados de la búsqueda

1. Timescale of ovarian maturation in Notothenia coriiceps (Richardson); evidence for a prolonged adolescent phase

   Abstract:  Ovarian maturation in Notothenia coriiceps is known to include a period during which ... phase lasts for about four years. There is also some evidence to indicate that not all sexually mature ... oocytes which ripen. Author(s):  Inigo Everson (United Kingdom) Title:  Timescale of ovarian maturation in ... for about one year. The results from a two year study at Signy Island indicate that this adolescent ...

   Meeting Document : WG-FSA-93/26 : Autor(es): Inigo Everson (United Kingdom)

2. Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island

   while at shallower layer (20-50 m) at night. In the offshore foraging areas krill showed no diurnal ... . Penguin foraging areas were formed in inshore region, where krill frequently occurred but higher density ... areas of krill (≥250g/m2) were rather limited. In contrast, fur sea! foraging areas were formed in ... . 2-3 km in horizontal distance) of higher densities (≥250g/m2). In the inshore foraging areas krill ...

   Meeting Document : WG-KRILL-92/27 : Autor(es): T. Ichii, H. Ishii (Japan), J.L. Bengtson, P. Boveng, J.K. Jansen (USA) and M. Naganobu (Japan)

3. Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands

   Abstract:  The waters in the vicinity of the South Shetland Islands and Elephant Island were ... biomass of krill in the 1990/91 austral summer. Main krill concentrations occurred in the shelf waters ... north of the islands, as usual. Tracks of drifting buoys (with curtain drogues at 30 m depth where krill ... frequently occur), have elucidated the occurrence of convergent complex eddies in these shelf waters. (Note ...

   Meeting Document : WG-KRILL-91/22 : Autor(es): Delegation of Japan

4. By-catch analysis as a part of progress report for the research fishery of Dissostichus spp. in Subarea 48.6 by Japan and South Africa during 2012/13–2016/17

   report for the research fishery of Dissostichus spp. in Subarea 48.6 by Japan and South Africa during ... by-catch occurred in most longline research operations, the number of by-catch individuals was less ... than 100 individuals in most of the operations. In most of longline operation, by-catch weight was less ... than 100 kg and less than 20 % of total catch. GRV and ANT are common by-catch species, which are ...

   Meeting Document : WG-SAM-17/44 : Autor(es): T. Okuda, S. Somhlaba and T. Ichii

5. By-catch analysis as a part of progress report for the research fishery of Dissostichus spp. in Divisions 58.4.3a and 58.4.4b by Japan and France during 2012/13–2016/17

   report for the research fishery of Dissostichus spp. in Division 58.4.3a and 58.4.4b by Japan and France ... . Although the by-catch occurred in most longline research operations, the number of by-catch individuals was ... less than 50 individuals in most of the operations. In most of longline operation, by-catch weight was ... less than 100 kg and less than 20 % of total catch. GRV and ANT are common by-catch species, which are ...

   Meeting Document : WG-SAM-17/45 : Autor(es): T. Okuda, A. Rigaud, R. Sinegre and T. Ichii

6. A bioenergetics model for estimating prey consumption by an Adélie penguin population in east Antarctica

   CEMP site at Bechervaise Island using 13 years of data, a year when penguins successfully reared chicks ... . The model predicts prey consumption throughout the breeding season and incorporates uncertainty in ... krill and fish in their diet, we estimate that this population consumes 78-406 t of krill and 4-46 t of ... bioenergetics model for estimating prey consumption by an Adélie penguin population in east Antarctica Approval ...

   Meeting Document : WG-EMM-16/P10 : Autor(es): D. Southwell, L. Emmerson, J. Forcada and C. Southwell

7. Penguin demography and winter distributions in the Antarctic Peninsula region

   Abstract:  Our long-term seabird research at Admiralty Bay has documented annual variability in ... physical processes to their effects on dependent predators in the Southern Ocean. Our most recent results ... present a conceptual model linking increasing temperatures and decreasing sea ice cover in the Antarctic ... Peninsula region to declines in krill and penguin populations. Winter temperatures in the Antarctic ...

   Meeting Document : WG-EMM-01/32 : Autor(es): W. Trivelpiece and S. Trivelpiece (USA)

8. Discharge of offal in the Ross Sea – follow up to COMM CIRC 15/15–SC CIRC 15/06

   an analysis of the information provided by New Zealand in previous years (COMM CIRC 13/09), along ... Abstract:  In response to a request from New Zealand (COMM CIRC 15/15) the Secretariat undertook ... facilitate further investigation. In 2013 reports of offal were tightly clustered in a small area on the ... border of SSRUs 88.H and J, whereas in 2015 the reports were received from a broader area. For each ...

   Meeting Document : CCAMLR-XXXIV/BG/10 : Autor(es): CCAMLR Secretariat

9. VNIRO program on remote monitoring of oceanographic conditions in fishing areas of the World Ocean (the southwestern Atlantic and the southeastern Pacific)

   interannual variability of SST; results of comparison of maps of monthly mean SST in various years and mean ... , year, etc.). Sample monitoring of fishing areas in the south-western Atlantic and the southeastern ... dynamics of the sea surface temperature (SST) in fishing areas For various time intervals (week, month ... their analyses in the process of estimation and development of the forecast of fishing conditions are ...

   Meeting Document : WG-EMM-98/14 : Autor(es): G.P. Vanyushin, T.B. Barkanova and A.A. Troshkov (Russia)

10. Among-year variation in growth of Antarctic krill Euphausia superba based on length-frequency data

    (annual estimates for a 30 mm krill in the Elephant Island region ranged from 0.00 to0.17 mm d −1; mean ... Southern Ocean over a span of 19 yr to document among-year variation in krill growth during the austral ... estimates of among-year variation in krill growth. We estimate very high among-year variation in growth ... . Kinzey, C. Reiss, S. Munch, G. Watters and M. Mangel (USA) Title:  Among-year variation in growth of ...

    Meeting Document : WG-EMM-13/P01 : Autor(es): A.O. Shelton, D. Kinzey, C. Reiss, S. Munch, G. Watters and M. Mangel (USA)

Páginas