Resultados de la búsqueda
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Preliminary aspects of a simulation model to be used for evaluating the experimental crab fishery
Abstract: At the 1993 meeting of the Working Group on Fish Stock Assessment, members requested ... that work be undertaken to evaluate certain aspects of the experimental management strategy for the ... rate data from the 1991/92 crab fishery are used to motivate the construction of an ontogenetic ... fishery simulation is spatially explicit, and the dynamics of crab abundance are described on a daily ...
Meeting Document : WG-FSA-94/26 : Autor(es): G. Watters (USA)
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Fish as diet of the blue-eyed shag, Phalacrocorax atriceps bransfieldensis at Half-Moon Island, South Shetland Islands
Shetland Islands, during January and February 1993, were analyzed to determine the importance of fish in ... the diet of the blue-eyed shag Phalacrocorax atriceps bransfieldensis. Fish species were identified by ... means of otoliths found in the casts. The size and weight of the fish were estimated from the otolith ... , comprising 91% of prey items. From the 937 otoliths found, 562 fish were represented and 524 were assigned to ...
Meeting Document : WG-CEMP-94/32 : Autor(es): E.R. Barrera-Oro and R.J. Casaux (Argentina)
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Estimating the level of illegal fishing using simulated scaling methods on detected activity
, Annex 5, paragraph 3.18). The results of these simulations suggest that more information on IUU fleet ... the number of IUU fishing days, particularly for areas where patrolling may be relatively infrequent ... vessels between detecting IUU activity, thereby estimating the number of IUU fishing days, and deterring ... such activity. For assessment purposes, this highlights a general problem that the method of ...
Meeting Document : WG-FSA-SAM-04/14 : Autor(es): Ball, I.
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Preliminary report on krill survey off the coast of East Antarctica (Enderby Land to Prydz Bay) February-March 2015
station resupply. The purpose of this opportunistic Marine Science work was to assess: The spatial ... variability, particularly along the shelf break, of the prey field for penguins, flying seabirds and marine ... mammals in East Antarctica. The small scale variability of prey in key foraging locations near to land ... -based colonies of penguins and flying seabirds in East Antarctica. Feasibility and potential of ...
Meeting Document : WG-EMM-15/22 : Autor(es): S. Kawaguchi, A. Constable, L. Emmerson, C. Southwell, R. King, K. Westwood and K. Swadling (Australia)
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High densities of pennatulaceans (sea pens) encountered at sites in the South Orkney Islands (Subarea 48.2): three potential Vulnerable Marine Ecosystems
Abstract: High densities of pennatulaceans (Phylum Cnidaria: Order Pennatulacea), a vulnerable ... marine ecosystem (VME) indicator taxa, were encountered at three sites on the northeastern shelf of the ... South Orkney Islands (Subarea 48.2). The details of these encounters, utilizing occurrence and abundance ... currently registered VMEs, one of which was based solely on high densities pennatulaceans. Although the ...
Meeting Document : WG-EMM-18/36 : Autor(es): C.D. Jones
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Fulfilling CCAMLR’s commitment to create a representative system of Marine Protected Areas
committed to adopting a representative network of marine protected areas (MPAs) in 2009. This paper ... Abstract: The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) first ... adoption and entry into force of the Ross Sea MPA, ASOC calls on CCAMLR to make swift progress towards ... adopting a Southern Ocean representative system of MPAs by 2020. ASOC recommends that this year CCAMLR ...
Meeting Document : CCAMLR-XXXVII/BG/36 : Autor(es): Submitted by ASOC
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Preliminary assessment of genetic diversity in bycatch-caught darkbelly skate (Bathyraja meridionalis) from South Georgia
Abstract: Reliable species identification and population assessments of skates are crucial for ... the sustainable management of their vulnerable stocks. However, species identification is a major ... molecular tools to identify specimens of softnose skates (Bathyraja spp.) caught as bycatch from the ... discrepancy between previous genetic studies of B. meridionalis and B. maccaini that challenged the ...
Meeting Document : WG-FSA-2019/19 : Autor(es): S. Pérez-Espona, W.P. Goodall-Copestake, P. Hollyman and M. Belchier
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Composition and standing stock estimates of finfish from the Polarstern bottom trawl survey around Elephant Island and the South Shetland Islands (Subarea 48.1, 19 December 2006 to 3 January 2007)
composition, biomass, and size composition of the abundant fish species was provided. Estimates of total ... South Shetland Islands and N. rossii in both areas. The proportion of juvenile G. gibberifrons ... , decreased further due to the production of poor year – classes since the late 1990’s. A concentration of N ... . rossii was found in the same location where aggregations of the species have been detected in 1975/76 and ...
Meeting Document : WG-FSA-07/22 : Autor(es): K.-H. Kock, J. Appel, M. Busch, S. Klimpel, M. Holst, D. Pietschok (Germany), L.V. Pshenichnov (Ukraine), R. Riehl, S. Schöling (Germany)
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Approaches to monitoring and assessing the abundance of rattails (Macrourus spp.) and skates in the Ross Sea
, experimental manipulation of fishing effort, catch-curve analysis, tagging programmes, bottom trawl surveys ... towards obtaining abundance estimates for rattails and skates in the Ross Sea. The major advantage of this ... range 600–1500 m to obtain a precise estimate of bycatch abundance in the area of highest densities ... (SSRUs 881E, G, H, I, J, and K). A trawl survey could also be used in conjunction with other methods of ...
Meeting Document : WG-FSA-05/22 : Autor(es): R.L. O’Driscoll, S.M. Hanchet and B.A. Wood (New Zealand)
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Descriptive analysis of haul data from FV Atlantic Navigator in Elephant Islands (48.1), South Georgia Islands (48.3) and South Orkney Islands (48.3) krill fishery (summer 2004 to early winter 2005)
(early winter 2005) with a total of 251 days of effective fishing. Descriptive study of the fishery ... continuous fishing system with air-bubbling suspension and suction of capture (CFS). Individual haul data ... were analyzed to describe differentialy catch rates (catch per day and catch per minute) of the three ... different fishing zones studied. The total catch registered was 41837 tonnes: 50% of this capture was ...
Meeting Document : WG-EMM-05/12 : Autor(es): O. Pin, H. Nión, E. Delfino and P. Meneses (Uruguay)