Resultados de la búsqueda
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Growth per molt of male snow crab Chionoecetes opilio from Conception and Bonavista Bays, Newfoundland
, Newfoundland, in order to estimate the increase in size at the time of molting. Ninety-two animals were ... recaptured which had usable information on growth increments. Based on the amount of growth, we hypothesized ... that 20 of these had molted once while the remainder molted twice. Two lines of evidence support this ... interpretation. First, animals in the group presumed to have molted twice were at liberty on average twice as ...
Meeting Document : WS-CRAB-93/12 : Autor(es): D.M. Taylor and J.M. Hoenig (USA)
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Proposal for the establishment of a marine CCAMLR MPA in the Weddell Sea (Antarctica) – First conceptual outline
study aiming at a Weddell Sea MPA, (ii) give a systematic overview of our preliminary data retrieval ... domains CCAMLR member states were asked to take the lead in MPA planning. At the CCAMLR meeting in 2012 ... , the Commission welcomed the offer of Germany to take the lead in developing a Weddell Sea MPA for ... consideration in 2014. Subsequently, the German Federal Ministry of Food, Agriculture and Consumer Protection ...
Meeting Document : WG-EMM-13/22 : Autor(es): K. Teschke, B. Dorschel, J. Gutt, S. Hain, H. Hellmer, K. Jerosch, R. Knust, K.-H. Kock, M. Schlüter, V. Siegel and T. Brey (Germany)
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Depth and temperature preferences of Antarctica toothfish (Dissostichus mawsoni) from a pilot popup satellite archival tag study in the Mawson Sea
appeared to have remained in the Mawson Sea area for the majority of time at liberty. The recaptured ... mawsoni) released in the Mawson Sea were analyzed. Toothfish were at liberty for 36-366 days, and yielding ... depth range of 326 to 1824 m and a temperature range of-1.95 to 0.7°C. Through available depth and ... warranted to observe similar ascents in other individuals, and be analyzed in the greater context of ...
Meeting Document : WG-FSA-18/22 : Autor(es): C.H. Lam, S.-G. Choi, E. Kim, S. Chung, J. Lee and D.H. An
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DEPREDATION AROUND SOUTH GEORGIA AND THE IMPLICATIONS ON STOCK ASSESSMENT OF D. ELEGINOIDES
conducted which looked at the behaviour of cetaceans around fishing vessels in the area. To aid ... Abstract: Observer data collected on longliners between 2003 and 2009 was analysed to look at the ... levels of depredation caused by killer whales (Orcinus orca) and sperm whales (Physeter macrocaphalus ... ) around South Georgia. Since 2003 cetaceans have been observed on 3000 out of 14644 observed lines (20.5 ...
Meeting Document : WG-FSA-09/16 : Autor(es): J. Moir Clark, D.A. Agnew, P. McCarthy and M. Unwin (United Kingdom)
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An updated descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 and 88.2 up to 2005/06
Abstract: A descriptive analysis of the toothfish tagging programme carried out in Subareas 88.1 ... which were presented in July 2006 at WG-FSA-SAM. In addition, the paper presents release and recapture ... still only available for about half of the non-New Zealand vessels for 2003-04. A reported total of 10 ... . About 17% of the recaptures could not be matched to a release observation, mainly because of missing ...
Meeting Document : WG-FSA-06/34 : Autor(es): A. Dunn and S.M. Hanchet (New Zealand)
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Results of a scientific electronic monitoring pilot study on the FV Janas during the 2017/18 Ross Sea fishing season
integrated system collected video data from three cameras (two at the starboard hauling area and one at the ... and sensor data could be easily analysed to understand fishing activities (including understanding of ... developed to supplement and assist with scientific observation. This type of system has the potential to ... assist in improving the accuracy of data recording by observers, as well as allowing observers more time ...
Meeting Document : WG-SAM-18/20 : Autor(es): B. Plum, A. Smith and S. Parker
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Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia
. Most interactions from sperm whales occur during May at the start of the season with the sightings ... Abstract: Observer data collected on longliners between 2003 and 2009 were analysed to look at ... the levels of depredation caused by killer whales (Orcinus orca) and sperm whales (Physeter ... macrocephalus) around South Georgia. Since 2003, cetaceans have been observed on 22% of 14 300 observed lines ...
Meeting Document : WG-FSA-10/P06 : Autor(es): J. Moir Clark and D.J. Agnew
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COLLAPSE OF SOUTH AFRICA’S PENGUINS IN THE EARLY 21ST CENTURY
11 000 pairs in 2009. At Dassen Island, the annual survival rate of adult penguins decreased from ... Abstract: The number of African penguins Spheniscus demersus breeding in South Africa collapsed ... from about 56 000 pairs in 2001 to some 21 000 pairs in 2009, a loss of 35 000 pairs (>60%) in eight ... classification of the species as Endangered. In South Africa, penguins breed in two regions, the Western Capeand ...
Meeting Document : WG-EMM-11/P8 : Autor(es): R.J.M. Crawford, R. Altwegg, B.J. Barham, P.J. Barham, J.M. Durant, B.M. Dyer, D. Geldenhuys, A.B. Makhado, L. Pichegru, P.G. Ryan, L.G. Underhill, L. Upfold, J. Visagie, L.J. Waller and P.A. Whittington
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Exploitation of the marine environment by two sypatric albatrosses in the Pacific Southern Ocean
foraging trips to the Polar Front and Antarctic Zone at a distance of over 2000 km. They relied heavily on ... albatrosses D. chrysostoma breeding at Campbell Island, New Zealand, was studied using satellite telemetry ... . Data were analysed in relation to the bathymetry and sea-surface temperature of the foraging zones ... . Black-browed albatrosses spent 55% of their time on the Campbell Plateau but also carried out long ...
Meeting Document : WG-FSA-04/59 : Autor(es): S.M. Waugh (New Zealand), H. Weimerskirch, Y. Cherel (France), U. Shankar (New Zealand), P.A. Prince (United Kingdom) and P.M. Sagar (New Zealand)
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Distribution, demography and discard mortality of crabs caught as by-catch in an experimental pot fishery for toothfish in the South Atlantic
Abstract: Between March 2000 and April 2001 two commercial fishing vessels undertook trials at ... South Georgia of a method of fishing for toothfish (Dissostichus eleginoides) using pots. A significant ... bycatch of lithodid crabs (three species of Paralomis spp.) was encountered. Paralomis spinosissima ... were also noted in depth distribution of the sexes and the size of crabs. Depth, soak time and area ...
Meeting Document : WG-FSA-01/32 : Autor(es): M.G. Purves (South Africa), D.J. Agnew, G. Moreno, C. Yau and G. Pilling (United Kingdom)