Resultados de la búsqueda
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Foraging areas of black-browed and grey-headed albatrosses breeding on Macquarie Island in relation to marine protected areas
-order predators, there is a paucity of data that can be used to evaluate their efficacy in achieving ... Southern Ocean by examining the foraging areas of black-browed and grey-headed albatrosses that were ... Exclusion Zone around Macquarie Island. In contrast, grey-headed albatrosses (T. chrysostoma) spent on only ...
Meeting Document : WG-FSA-04/49 : Autor(es): A. Terauds, R. Gales, G.B. Baker and R. Alderman (Australia)
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Investigation of bias in the mark–recapture estimate of toothfish population size at South Georgia
) and upwards in a low-density box, so that they tended to be retained in high-density boxes. The model ... allows simulation of releases by box over multiple years. The model performed as expected with test ... and/or fishing effort; by ‘ideal’, it is meant that either tagging or fishing effort was in direct ... indicated that the Petersen estimator produced an underestimate of true population size. Although this paper ... that they tended to be retained in high-density boxes. The model allows simulation of releases by box ... - mated by a straight line for this purpose) needed to be sufficiently small that toothfish would have a ... in that year 40 W 43 3 0' W 48 0 0' W M an ag em en t A re a A (W es t S ha ... released in that and earlier years Fi gu re 1 : D is tr ib ut io n of t ag a nd r el ea se ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 47–63 : Autor(es): Agnew, D.J., G.P. Kirkwood, J. Pearce and J. Clark
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ANTARCTIC TOOTHFISH STOCK ASSESSMENT IN DIVISION 58.4.1 ON THE BASIS OF CATCH AND CPUE DATA
of carrying capacity for this stock is found to be about 29000 t. Initial stock biomass is estimated ... this division (e.g. Agnew et al., 2008), the assessment was intended to be independent of estimates of ... production models, current stock biomass in this division is estimated as about 12000 t, while the estimate ... as 19000 t. Author(s): D. Vasilyev, K. Shust, A. Petrov, V. Tatarnikov and I. Istomin (Russia) Title ...
Meeting Document : WG-FSA-09/14 Rev. 1 : Autor(es): D. Vasilyev, K. Shust, A. Petrov, V. Tatarnikov and I. Istomin (Russia)
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e-cc-xvii-a5.pdf
... commented that this should be taken up on a national level by Members in accordance with the harmonised ... that the bonds will be forfeited. The total value of these bonds is estimated at A$2.1 million. Court ... ). Argentina advised that administrative actions had been taken with respect to the following three vessels ... their approach which could be used by other Members as a model. It suggested that a harmonised tariff
application/pdf attached to:SCOI-98Meeting Report : SCOI-98
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BEACH DEBRIS SURVEY AT CAPE SHIRREFF, LIVINGSTON ISLAND, DURING THE ANTARCTIC SEASON 1996/97
produced on board can be stored, with the respective compartments with the international colour for plastic ... international ports, especially in those with an adequate infrastructure to receive that kind of waste ... beaches of Cape Shirrefl Livingston Island, South Shetland Islands, where a total of 1 609 articles with a ... plastic pieces to avoid that tllis material may enter the CEMP Site during storms and windy weather. As it ...
Meeting Document : CCAMLR-XVI/BG/35 : Autor(es): Delegation of Chile
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Evaluation of de la Mare’s composite standardised index for generating a simple time-series summary of many long-term datasets on Antarctic predators: consequences of missing values and criteria for inclusion of predator parameters
found that, for inclusion in the index, parameters should be positively correlated with all other ... for determining the correlation coefficients. These criteria need to be accepted with caution. Further ... parameters present in that year. In this respect, the robustness of the index is dependent on that subset of ... parameters being representative of all the parameters for that year. Clearly, this will depend on how ...
Meeting Document : WG-EMM-98/45 : Autor(es): A. Constable (Australia)
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Research plan for toothfish in Divisions 58.4.4a and 58.4.4b by Shinsei Maru No. 3 in 2012/13
of 20 % achievable from Petersen biomass estimates may be achieved within three years with an annual ... . However, it should be noted that one of the reasons for small number of recaptured fish and decreased CPUE ... overestimated, while that using CPUE comparison may be underestimated. We propose to continue the mark-recapture ... of ≥ 5 fish / ton will be conducted. The comparison test with the experimental gear, which consists ...
Meeting Document : WG-SAM-12/17 : Autor(es): Delegation of Japan
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Preliminary tag-recapture based population assessment of Antarctic toothfish (Dissostichus mawsoni) in Subarea 48.4
from tagging returns to average 1109 tonnes since 2010, with a five-year (2015-2019) average biomass of ... as being part of a much larger stock that extends south into Subarea 48.2, 48.6 and possibly 48.5 ... estimate of the local biomass. Author(s): T. Earl and A. Riley Title: Preliminary tag-recapture based ...
Meeting Document : WG-FSA-2019/27 : Autor(es): T. Earl and A. Riley
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e-cc-xxvi-a4.pdf
... that a full audit should be performed on average once every two years, and in 1995 that this would be ... organisations. Equally, the Compliance Officer would be bound in accordance with the authority designated to ... principle, CCAMLR staff should be treated equitably compared to other Australian taxpayers. It noted that ... . The Committee also recommended that the Executive Secretary be given the authority for payment of the
application/pdf attached to:SCAF-07Meeting Report : SCAF-07
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Line weights of constant mass (and sink rates) for Spanish system Patagonian toothfish longline vessels
every 40 m averaged 0.22 m s –1 to 2 m depth, which would be equal to, or exceeded by, lines with 5 kg ... with seabirds. The weights typically used are collections of rocks enclosed in netting bags. During ... fishing operations the netting bags abrade on the seabed causing rocks to be lost and the weights to ... become progressively lighter, requiring ongoing repair. This problem can be solved by use of ... be equal to, or exceeded by, lines with 5 kg steel weights. Sink rates of Chilean longlines greatly ... subsequent to Agnew et al. (2000), who did not measure sink rates, revealed that longlines equipped with ... is an antiquated line-weighting method that creates problems with regard to consistency of mass ... weight is attached to the end of each one (Figure 1). The branch/connecting lines can be fitted with a ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 93–106 : Autor(es): Robertson, G., C.A. Moreno, E. Gutiérrez, S.G. Candy, E.F. Melvin and J.P. Seco Pon