Resultados de la búsqueda
-
Brief results of research fishing in Subarea 88.3 in the 2010/11 season
“Sparta”, with two scientific observers aboard. They deployed 20 sets (trotline) at different depths ... . Total amount of set hooks is 87096. Research catching was carried out in SSRU B, C, and D. In SSRU A ... sets had not took place because of complicated ice conditions. The catch was totally analyzed for its ... fish food analysis). According to the catch’s length variation, 30 fishes of different length have been ...
Meeting Document : WG-SAM-11/09 : Autor(es): Delegation of the Russian Federation
-
AGE ESTIMATION AND LEAD-RADIUM DATING OF ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI)
to at least 39 years of age. Estimated and radiometric ages were in close agreement, confirming age ... commercial fishery in the Southern Ocean, yet many of their life history characteristics, including vital ... estimated ages, the radioactive disequilibrium of lead-210 and radium-226 in otolith cores was measured and ... estimation criteria and an annual periodicity of otolith growth zones. Von Bertalanffy growth function ...
Meeting Document : WG-FSA-08/17 : Autor(es): C.M. Brooks, A.H. Andrews, J.R. Ashford, G.M. Cailliet, N. Ramanna and C. Lundstrom (USA)
-
Survey of Antarctic fur seals Arctocephalus gazella in the South Shetland Islands, Antarctica, during the 1986/87 austral summer
were identified, some of which had not previously been reported. The largest pupping sites are at Telmo ... Abstract: A survey of Antarctic fur seals in the South Shetland Islands, Antarctica, during the ... recolonization of rookery sites following 19th Century commercial exploitation. Twelve fur seal pupping sites ... Island and Cape Shirreff, on the north coast of Livingston Island. Total fur seal pup production in the ...
Meeting Document : SC-CAMLR-VI/BG/18 : Autor(es): J.L. Bengtson, L.M. Ferm (USA), T.J. Härkönen (Sweden), E.G. Schaner and B.S. Stewart (USA)
-
Predator trophic hotspots in the Indian sector of the subantarctic Southern Ocean: how do they overlap with marine protected areas?
which are listed at various level of vulnerability by the IUCN and which are monitored by several bio ... Abstract: The Indian sector of the subantarctic region hosts large populations of top predators ... pelagic species of albatross, penguins and pinnipeds. Merging our analysis with previous results, we find ... ) through a bottom up effect. When mapped on jurisdictions, this network of hotspots appears to be only ...
Meeting Document : WS-SM-18/07 : Autor(es): M. O’Toole, S. Sergi, A. Baudena, C. Cotté, C. Bost, C. Guinet, H. Weimerskirch, M.A. Hindell, P. Koubbi and F. d’Ovidio
-
By-catch of rays in the 2002/03 toothfish fishery around South Georgia
tried: • It was the first in which vessels were asked to cut off all rays at water level to assist ... survival and conservation of rays; • It was the first in which very good quality information was available ... from all observers’ tally periods on the catch rates of rays cut off the line; • In 2003 the UK, with ... the cooperation of Chile and one fishing company, undertook an experiment to determine the ...
Meeting Document : WG-FSA-03/58 : Autor(es): D.J. Agnew, J. Pearce and M. Endicott (United Kingdom)
-
Timescale of ovarian maturation in Notothenia coriiceps (Richardson); evidence for a prolonged adolescent phase
for about one year. The results from a two year study at Signy Island indicate that this adolescent ... accompanied by a failure to spawn and an alternative where fecundity is controlled by the number of small ... oocytes which ripen. Author(s): Inigo Everson (United Kingdom) Title: Timescale of ovarian maturation in ...
Meeting Document : WG-FSA-93/26 : Autor(es): Inigo Everson (United Kingdom)
-
Results of the longline survey for toothfish in the northern Ross Sea region (SSRU 88.2A) by the FV Argos Froyanes, United Kingdom
were released at 3.1 fish tagged per tonne and a tag overlap statistic of 85%. Author(s): M. Soeffker ... fishable areas of SSRUs 88.2 A–B north of 66° S latitude. During the 6 th- 10 th February 2015, the UK ... fish and collect information on the characteristics of the toothfish inhabiting the region. The vessel ... of 49 tonnes of D mawsoni and small catch of 29 kg of two D eleginoides was taken; 150 tagged fish ...
Meeting Document : WG-SAM-15/31 : Autor(es): M. Soeffker, J. Clark, J.M.G. Rebollo and C. Darby (United Kingdom)
-
Modelling the circumpolar distribution of Antarctic toothfish (Dissostichus mawsoni) habitat suitability using correlative species distribution modelling methods
Abstract: Understanding and predicting the distribution of Antarctic toothfish (Dissostichus ... mawsoni) habitat suitability at different spatial and temporal scales can make an important contribution ... to CCAMLR’s management of this species. In this paper the use of Maxent models with fishery catch ... data and environmental data to provide a circumpolar prediction of Antarctic toothfish habitat ...
Meeting Document : WG-FSA-15/64 : Autor(es): CCAMLR Secretariat
-
Stock status and population assessment of the Antarctic starry skate (Amblyraja georgiana) in Subarea 48.3
-catch exploitation rate of Antarctic starry skates is likely low at around 1% of the estimated biomass ... Deficient” by IUCN (Endicott & Kyne 2009) and is one of the main by-catch species in the longline ... . Using ten years of tag-recapture data collected around South Georgia, a comprehensive analysis of data ... Georgia and Shag Rocks was undertaken. The outcomes of this study narrowed some of the existing knowledge ...
Meeting Document : WG-FSA-18/27 : Autor(es): M. Söffker, N.D. Walker, M. Belchier and J. Ellis
-
Preliminary review of Antarctic toothfish maturity in the Ross Sea
was established that in the period of fishing, females and males with gonads at maturity stage III ... Abstract: Results of comparative histological analysis of gonads of female and male Antarctic ... toothfish Dissostichus mawsoni caught by Russian longliners in the Ross Ross Sea of the Pacific sector in ... 2004/2005- 2006/2007 seasons are presented. Morphological indices of females and males, age, indices of ...
Meeting Document : WG-FSA-11/27 : Autor(es): S.V. Piyanova and A.F. Petrov (Russia)