Результаты поиска

1. Major fishery events in Kerguelen Islands: Notothenia rossii, Champsocephalus gunnari, Dissostichus eleginoides – current distribution and status of stocks

   fishing fleet of the fishing grounds in the early 1970’s. The fishery shifted to icefish (Champsocephalus ... banks resulted in the sharp decline in the catches of marbled notothenia. The creation of the French EEZ ... in 1978 closed the free fishery but did not stop the reduction of the biomass of exploited stocks ... . The SKALP first surveys (1987 and 1988), despite bias in the protocols, revealed the poor state of ...

   Meeting Document : WS-MPA-11/P04 : Автор(ы): G. Duhamel, P, Pruvost, M. Bertignac, N. Gasco and M. Hautecoeur

2. CLIMATICALLY DRIVEN FLUCTUATIONS IN SOUTHERN OCEAN ECOSYSTEMS

   role of physical and biological processes in generating fluctuations in the ecosystem around South ... Georgia in the South Atlantic sector of the Southern Ocean. Anomalies in sea surface temperature (SST) in ... changes in SST, and related fluctuations in winter sea ice extent, affect the recruitment and dispersal of ... Antarctic krill. This oceanographically driven variation in krill population dynamics and abundance in turn ...

   Meeting Document : WG-EMM-08/P02 : Автор(ы): E.J. Murphy, P.N. Trathan, J.L. Watkins, K. Reid, M.P. Meredith, J. Forcada, S.E. Thorpe, N.M. Johnston and P. Rothery

3. Results of a research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea, February 2012

   longline surveys to monitor pre-recruit (<100 cm TL) toothfish in the south of SSRUs 881.J and 881.L in ... the southern Ross Sea using standardised gear in a standardised manner; and (ii) To carry out ... experimental depth-stratified fishing in 400–600 m depth adjacent to the survey boundaries to establish the ... carry out a longline survey of pre-recruit toothfish from commercial fishing vessel in Ross Sea using ...

   Meeting Document : WG-SAM-12/29 : Автор(ы): S.M. Hanchet, S. Mormede, A. Dunn (New Zealand) and H.-S. Jo (Republic of Korea)

4. Trophic interactions and population trends of killer whales (Orcinus orca) in the southern Ross Sea

   Abstract:  Foraging events and related trends in numbers of Type-B and-C killer whales (Orcinus ... Sea killer whales (Type-C; RSKWs), a fishing-eating ecotype, has continued to decrease in a pattern ... coincident with a decrease in the number and size of an important prey: Antarctic toothfish (Dissostichus ... -eating killer whales and large Chinook salmon (Oncorhynchus tshawytscha) in the northeast Pacific. In ...

   Meeting Document : WG-FSA-12/P03 : Автор(ы): D.G. Ainley and G. Ballard

5. A preliminary stock assessment in SSRUS 486A, G: A Bayesian and CPUE based biomass dynamic model

   contribution to estimate abundance in a simple biomass dynamic model for both species of toothfish in northern ... sets in which both species are present, and thus, an analysis of catch intention was implemented by ... analysed in terms number of tagged and recovered individuals, and tag size-overlap. Catch reported and ... dynamic model in Bayesian framework using standardised CPUE and catches (considering assumed IUU) was ...

   Meeting Document : WG-SAM-13/29 : Автор(ы): R. Wiff, J.C. Quiroz (Chile) and R. Scott (United Kingdom)

6. Decadal trends in the South Georgia demersal fish assemblage

   research hauls conducted in depths < 350m during 19 research random stratified trawl surveys carried out ... appeared to be linked to habitat type. Low diversity in species was seen consistently over the Shag Rocks ... shelf. There was no detectable change in species composition across the region over three decades. Eight ... species from two families, the Notoheniidae and the Channichthyidae dominated the survey biomass in all ...

   Meeting Document : WG-FSA-13/26 : Автор(ы): M. Belchier (United Kingdom)

7. Analysis of krill fishery operations in Subarea 48.1: spatial-time distribution of CPUE and fishing efforts

   Abstract:  In previous years we revealed that period 2006-2011 is characterized by the highest ... values of standardized CPUE indices in the Subarea 48.1 for the last 25 years. We continue to investigate ... methods. Our investigation shows how fishery operated by years and month in each SSMUs with special ... attention to differences between national fleets. It was shown also significant variability in fishing ...

   Meeting Document : WG-EMM-14/21 : Автор(ы): S. Kasatkina and P. Gasyukov (Russia)

8. Growth and shrinkage in Antarctic krill Euphausia superba is sex-dependent

   period is critical to their success. Laboratory evidence suggests that krill may shrink in body length ... during this time in response to the low availability of food. Nevertheless, verification that krill can ... shrink in the natural environment is lacking because winter data are difficult to obtain. One of the few ... adult krill (>35 mm total body length) obtained from commercial vessels in the Scotia-Weddell region ...

   Meeting Document : WG-EMM-16/P04 : Автор(ы): G. Tarling, S. Hill, H. Peat, S. Fielding, C. Reiss and A. Atkinson

9. Feeding habits and prey consumption of Antarctic minke whale Balaenoptera bonaerensis in the Indo–Pacific region of the Southern Ocean

   species in the Southern Ocean. Quantitative information on prey consumption of whales is useful to ... understand their feeding ecology and role in the Antarctic marine ecosystem. The purposes of this study were ... in stomach contents, and 2) to estimate the amount of prey consumed by whales, accounting for some ... under Special Permit in the Antarctic: 1989/90-2004/05) and JARPAII (2005/06-2013/14) in the Indo ...

   Meeting Document : WG-EMM-17/14 : Автор(ы): T. Tamura

10. Summary of the toothfish fishery and tagging program in the Ross Sea region (Subarea 88.1 and SSRUs 882A–B) through 2017/18

    Abstract:  This report summarises the toothfish fishery in the Ross Sea region (Subarea 88.1 and ... Protected Area, most of fishing effort was carried out in the historically fished areas. There was a small ... amount of effort in the northern area of SSRU 88.2A, which was opened to the exploratory fishery with the ... the SRZ and the area inside the General Protection Zone of the Ross Sea region MPA was taken in the ...

    Meeting Document : WG-FSA-18/46 : Автор(ы): S. Mormede and S. Parker

Страницы