Resultados de la búsqueda
-
An update on the development of a management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
the short-term by an increase in the mean length of longline-caught toothfish over the next five years ... status for the toothfish resource in the Prince Edward Islands region that were developed last year are ... a constant future catch suggest that the two scenarios will only be qualitatively distinguished in ... control rule based upon recent trends in both CPUE and this mean length is investigated. This MP is able ...
Meeting Document : WG-FSA-SAM-06/12 : Autor(es): A. Brandão and D.S. Butterworth (South Africa)
-
2007 assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
become available for the years 2006 and 2007. The assessment allows for a second fleet to accommodate ... data from a pot fishery that operated in 2004 and 2005. Biological parameter values adopted for Subarea ... 48.3 are used. The resource is estimated to be at about 37% of its average pre-exploitation level in ... ) Title: 2007 assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward ...
Meeting Document : WG-FSA-07/34 Rev. 1 : Autor(es): A. Brandão and D.S. Butterworth (South Africa)
-
Natural mortality rates of the Antarctic krill Euphausia superba Dana in the Indian sector of the Southern Ocean
Abstract: Data on the size and age composition of Euphausia superba were collected in the ... E.superba in the Indian sector of the Southern Ocean were calculated according to Alverson-Carney’s (1975 ... , during the maturation period, to 1.17 and 3.22 during the first and last years of life, respectively ... superba Dana in the Indian sector of the Southern Ocean Approval: Approved ...
Meeting Document : WG-KRILL-93/44 : Autor(es): E.A. Pakhomov (Ukraine)
-
Environmental response of upper trophic level predators reveals a system change in an Antarctic marine ecosystem
increase in the frequency of years of low reproductive output. Changes in the population structure of krill ... Abstract: In the Antarctic Peninsula region current, long-term changes in the physical ... Georgia. Indices of population size and reproductive performance showed declines in all species and an ... largest size class was sufficient to support predator demand in the 1980's but not in the 1990's ...
Meeting Document : WG-EMM-01/21 : Autor(es): K. Reid and J.P. Croxall (United Kingdom)
-
Variations in food composition and feeding intensity of mackerel icefish (Champsocephalus gunnari) at South Georgia
proportion of mysids in the diet remained fairly constant. krill is obviously the prefered diet. In years of ... ) around Shag Rocks and the mainland of South Georgia was investigated in January/February 1985, January ... superba), the hyperiid Themisto gaudichaudii, mysids and in 1985 also Thysanoessa species. The proportion ... of krill and Themisto in the diet items varied considerably between the three seasons, whereas the ...
Meeting Document : WG-FSA-92/26 : Autor(es): K.-H. Kock (Germany), I. Everson (United Kingdom), S. Wilhelms (Germany), S. Campbell (United Kingdom), J. Szlakowski (Poland), G. Parkes (United Kingdom), Z. Cielniaszek (Poland) and C. Goss (United Kingdom)
-
An assessment of the impact of krill fishery on penguins in the South Shetlands
season (December-March) in the South Shetland Islands (Subarea 48.1) was assessed based on available ... information on fishery, penguins and krill biomass. The catch is very low in December followed by roughly ... intensity to the shelf and slope of Livingston or Elephant Island. In contrast, the food consumption by ... penguins is estimated to be large in the shelf and slope near King George Island (11,680 t/10-day), whereas ...
Meeting Document : WG-KRILL-93/07 : Autor(es): T. Ichii, M. Naganobu and T. Ogishima (Japan)
-
Preliminary information on inshore demersal fish from the Danco Coast, Antarctic Peninsula, in the 1999/00 summer season
population of G. gibberifrons in that area during the last seventeen years. Information on reproduction and ... Abstract: A total of 1103 inshore notothenioid fish were caught by means of trammel-nets in four ... ), Danco Coast, West Antarctic Peninsula, in the summer season of 2000. The families Nototheniidae ... . Gobionotothen gibberifrons and Trematomus newnesi followed in importance. In general, the ichthyofauna agreed in ...
Meeting Document : WG-FSA-00/63 : Autor(es): R. Casaux, E. Barrera-Oro, A. Baroni and A. Ramón
-
Revised research plan for the 2017/18 toothfish fishery in Division 58.4.4b by Japan and France
respectively, in Chapman method considering tags released in the last three years as effective for the biomass ... Abstract: Japan and France revised the next season’s (2017/18) research plan in research blocks ... -SAM meeting in 2017. We have used extracted data provided by the CCAMLR Secretariat on 27th July, 2017 ... . The estimated median stock size in block 58.4.4b_1 and 58.4.4b_2 was 1452.03 and 921.91, tonnes ...
Meeting Document : WG-FSA-17/11 : Autor(es): Delegations of Japan and France
-
A hierarchical classification of benthic biodiversity and assessment of protected areas in the Southern Ocean
protected areas (MPAs) in the Southern Ocean to help provide for the long-term conservation of marine ... biodiversity in the region. Critical to this undertaking is understanding the distribution of benthic ... assemblages. Our aim is to identify the areas where benthic marine assemblages are likely to differ in the ... classified according to the geomorphic features found within the bathomes in each ecoregion. We identified ...
Meeting Document : WS-MPA-11/23 : Autor(es): L.L. Douglass, J. Turner, H.S. Grantham, S. Kaiser, R. Nicoll, A. Post, A. Brandt and D. Beaver (WWF–ASOC)
-
Detection of growth zones in the eyestalk of the Antarctic krill Euphausia superba (Dana, 1852) (Euphausiacea)
February 2015, and varied between 30 and 53 mm in total body length. Up to six growth zones were identified ... Abstract: No reliable measures of age currently exist in the Antarctic krill, Euphausia superba ... (Dana, 1852). The eyestalks from 51 individuals were dissected, cut in longitudinal sections and studied ... the number of zones and body length. Further knowledge about molting process in the Antarctic krill ...
Meeting Document : WG-EMM-16/P02 : Autor(es): B.A. Krafft, M. Kvalsund, G. Søvik, E. Farestveit and A.-L. Agnalt