Resultados de la búsqueda
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRU 88.2E for the years 2002–03 to 2010–11
resulted in a 30% higher estimate of initial biomass than for the 2009 base case. The main reason for this ... this model were 484 t. SSRU 88.2E has historically been assessed and managed as a separate area because ... appropriate to carry out a combined stock assessment based on SSRUs 88.2C–G. This combined stock assessment is ... developed in a separate paper. Author(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand) Title ...
Meeting Document : WG-FSA-11/44 : Autor(es): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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PREDICTING SPECIES DISTRIBUTIONS FROM MUSEUM AND HERBARIUM RECORDS USING MULTI-RESPONSE MODELS FITTED WITH MULTIVARIATE ADAPTIVE REGRESSION SPLINES
overcoming these difficulties, analysing a range of data sets using the technique of multivariate adaptive ... computational environments such as a Geographic Information System. MARS also has the advantage that it can ... model multiple responses, meaning that it can combine information from a set of species to determine the ... total set of presence-only sites for a biological group, and using simultaneous analysis of multiple ...
Meeting Document : WS-VME-09/P02 : Autor(es): Elith, J., Leathwick, J.
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ALLOCATING THE PRECAUTIONARY CATCH LIMIT FOR KRILL AMONGST THE SMALL-SCALE MANAGEMENT UNITS IN AREA 48: THE IMPLICATIONS OF DATA UNCERTAINTIES
Abstract: Over the past few years WG-EMM has been developing a management procedure for the krill ... catch limit among a set of small-scale management units. So far the Working Group has identified six ... - subdivision based on the distribution of historical catches). In recognising the need for a “staged ... fishing) until a future date. The remaining three options propose subdividing the catch limit according to ...
Meeting Document : WG-EMM-08/12 : Autor(es): P.N. Trathan and S.L. Hill (United Kingdom)
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GROUNDFISH SURVEY IN CCAMLR SUB-AREA 48.3 IN APRIL 2008 WITH PRELIMINARY ASSESSMENT OF MACKEREL ICEFISH
Abstract: In April 2008 the UK undertook a bottom trawl survey of CCAMLR Sub-Area 48.3 on the FV ... (2003), the biomass of mackerel icefish was estimated to be 80,426 tonnes, with a lower 1-sided 95% CI ... in the NW South Georgia area. A preliminary short-term projection of the mackerel icefish stock was ... was successful. The icefish appeared to be dispersed, which is amenable to a random trawl survey ...
Meeting Document : WG-FSA-08/28 : Autor(es): M.A. Collins, R.E. Mitchell, C.E. Main, J. Lawson, J. Watts, J. Slakowski, L. Featherstone and O. Rzewuski (UK)
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Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Signy Island, South Orkney Islands 1996/97
was estimated that the incidence of entanglement was 0.33%. Data are compared with results from a ... packaging bands were the main entangling materials at both sites, a greater proportion of fur seals was ... was seen to have a neck collar loose enough to come off. Since 1991, 47 entanglements have been ... Islands. However, it is difficult to determine if this is a site specific difference or a product of ...
Meeting Document : SC-CAMLR-XVI/BG/07 : Autor(es): Delegation of the United Kingdom
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Incidental mortality of seabirds associated with longline fishing in Subarea 48.3 – preliminary results of scientific observations onboard the Chilean longliner, Puerto Ballena, from March to May 1996
observations on the by-catch of seabirds during a cruise of the Chilean longliner 'Puerto Ballena' in ... Statistical Subarea 48.3. A total of 118 dead black-browed albatrosses, 3 dead grey-headed albatrosses, 46 ... numbers of dead seabirds from a subsample of hooks to the total number of hooks in a set which warrant ... by crew members as a minimum estimate, these figures appear by far too high to be sustainable by both ...
Meeting Document : WG-FSA-96/31 : Autor(es): Selling, J., Kock, K.-H.
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The biology and ecology of mackerel icefish, Champsocephalus gunnari – an Antarctic fish species that lack haemoglobin
Abstract: The mackerel icefish (Champsocephalus gunnari) is a prominent member of the coastal ... fish fauna of the Seasonal Pack-ice Zone and the islands north of it. Separated into a number of stocks ... comparable to similar sized nototheniids and channichthyids. Stocks of C. gunnari have a number of biological ... ability to reproduce at an early age coupled with a comparatively high fecundity and growth performance ...
Meeting Document : WG-FSA-96/24 : Autor(es): Everson, I., Kock, K.-H.
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Research and monitoring to support an MPA in the Ross Sea Region
research and monitoring plans shall, to the extent necessary and inter alia, specify “(a) scientific ... being met,” we are unclear about what a research and monitoring plan should actually contain and how it ... should be structured. Here we present a draft plan to support an MPA in the Ross Sea Region (RSR) and ... largely represents a mechanism for generating discussion that we hope will be useful to all Members ...
Meeting Document : WG-EMM-12/46 : Autor(es): G.M. Watters and C.S. Reiss (USA)
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Competition-mediated prey availability drives Adélie penguin (Pygocelis adeliae) chick size, mass and condition at colonies of differing size in the southern Ross Sea
interactions between them, is a key component in understanding the factors driving changes in animal ... breeding colonies of different sizes on Ross Island during a period of high environmental variability. The ... efficiency and providing a natural experiment to test the effects of environmental conditions and competition ... foraging. In addition, we show that in some cases, increased intraspecific competition may be a more ...
Meeting Document : WG-EMM-13/31 : Autor(es): A.L. Whitehead (Australia), P. O’B. Lyver (New Zealand), G. Ballard (USA), K. Barton, B.J. Karl (New Zealand), D.G. Ainley, K. Dugger, S. Jennings (USA), A. Lescroël (France) and P.R. Wilson (New Zealand)
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Developing research on Antarctic krill to facilitate the development and updating of feedback management procedures
developing a feedback management procedure for these fisheries. Implementation of such a feedback management ... enabling expansion, further research in a number of international programs and recognition of substantial ... remain a number of major gaps in our understanding of the basic biology and dynamics of krill populations ... ): E.J. Murphy, R.D. Cavanagh (United Kingdom), A. Constable (Australia), E.H. Hofmann (USA), S.L. Hill ...
Meeting Document : WG-EMM-13/12 : Autor(es): E.J. Murphy, R.D. Cavanagh (United Kingdom), A. Constable (Australia), E.H. Hofmann (USA), S.L. Hill, N.M. Johnston, P.N. Trathan and J.L. Watkins (United Kingdom)