Resultados de la búsqueda
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Alternative assessment methods for toothfish at South Georgia
first is that the CPUE in the early 1990s did not decline as would be expected as the resource was ... would be predicted by the model. Thirdly, all models predict a continuing decline, not the increase in ... initial lack of early decline, the abrupt decline between 1995 and 1996 and the subsequent increase in ... biomass in 2002 was between 78,000 and 114,000 t. Author(s): Kirkwood, G., Payne, A., Agnew, D. Title ...
Meeting Document : WG-FSA-SAM-04/17 : Autor(es): Kirkwood, G., Payne, A., Agnew, D.
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Considerations on the design and evaluation of surveys for estimating recruitment of Patagonian toothfish (Dissostichus eleginoides) with preliminary outcomes for the Heard Island plateau region (Division 58.5.2)
levels of confidence in the estimates of abundance for all but the youngest year class. It is recommended ... management procedure for D.eleginoides in Division 58.5.2 in order to determine the potential implications ... in the context of the elements of the current monitoring and assessment methods is outlined. Author(s ...
Meeting Document : WG-FSA-SAM-04/19 : Autor(es): Candy, S., Constable, A.J., Davies, C.R.
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Relationship with the Antarctic Treaty System
ATS), the RP sees virtue in reinforcing the obligations of Articles III, V (and IV.1). This might be ... Treaty; having available for Acceding States, and other States indicating an interest in CCAMLR, a ... virtue in reminding all CPs to CCAMLR of their obligations under the Antarctic Treaty. Commission (2010 ... ) CCAMLR-XXIX, paragraph 15.8; (2010) CCAMLR-XXIX/BG/13 Rev. 2 Commission: In progress – advanced action ...
Page : Site Section: The Organisation
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A comparison of gear selectivity among three fishing gears for Antarctic krill with notes on the demographic patterns and productivity of Antarctic krill during summer 2014
showed that krill collected in Bransfield Strait and Elephant Island areas of the South Shetlands in ... summer 2014 were about 42 mm in length (3yrs old), and few small (<25mm) krill (1 year old) were ... captured. The majority of krill were mature and in spawning condition. Author(s): C. Reiss (USA) and M ...
Meeting Document : WG-EMM-14/37 : Autor(es): C. Reiss (USA) and M. Espino Sanchez (Peru)
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Informe de avance sobre los fundamentos científicos para el establecimiento de un AMP de la CCRVMA en el Mar Weddell (Antártida)
document SC-CAMLR-XXXIII/BG/02. The document (in its final version) provides the scientific basis for the ... evaluation of marine protected areas (MPAs) in the Weddell Sea. At present the background document presents a ... scientific basis in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica) Approval ...
Meeting Document : SC-CAMLR-XXXIII/08 : Autor(es): Delegation of Germany
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Quantifying the escape mortality of trawl caught Antarctic krill (Euphausia superba)
fishing gear. The methods for determining fishing mortality in krill are still poorly developed. We used a ... covered codend sampling technique followed by onboard observations made in holding tanks to monitor ... mortality of krill escaping the trawl nets in our study was 4.4 ± 4.4 %, suggesting that krill are fairly ... tolerant of the capture-and-escape process in trawls. Author(s): B.A. Krafft, L.A. Krag, A. Engås, S ...
Meeting Document : WG-EMM-16/04 : Autor(es): B.A. Krafft, L.A. Krag, A. Engås, S. Nordrum, I. Bruheim and B. Herrmann
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Population trends and reproductive success at a frequently visited penguin colony on the western Antarctic Peninsula
frequently visited locations, is at the epicenter of a rapid shift in which an Adélie penguin dominated fauna ... with larger trends in this region, the Adélie penguin population decreased by 29% and the gentoo ... Petermann Island. Whereas gentoo penguin reproductive success was lowest in colonies frequently visited by ... visited only occasionally. These results are placed in the context of other studies on reproductive ...
Meeting Document : WG-EMM-16/P07 : Autor(es): H.J. Lynch, W.F. Fagan and R. Naveen
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Density and biomass of Antarctic krill around South Shetland Islands using by 2-dB difference method
aggregations in the Elephant Island peripheries and south of South Shetland Islands were higher than those in ... the west of the South Shetland Islands. The mean length/height ratio of krill aggregations in the west ... of the South Shetland Islands (64.5) was higher than that in the south (35.9) and the Elephant Island ...
Meeting Document : SG-ASAM-17/04 : Autor(es): S.-G. Choi, K. Lee and D. An
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A von Bertalanffy growth model for toothfish at Heard Island fitted to length-at-age data and compared to observed growth from mark–recapture studies
frequencies were also included in defining relative probabilities, the VP maximum likelihood (MLPLB) and IWLS ... measured at release and first recapture in mark–recapture studies were compared where predictions used the ... developed and showed that the bias is relatively small for the range of release lengths in the data ... , the mean trend in observed AGR values with release length compared with those obtained using IWLS ... . When length- bin sampling frequencies were also included in defi ning relative probabilities, the VP ... annual growth rate (AGR) for lengths measured at release and fi rst recapture in mark–recapture studies ... the range of release lengths in the data. Predictions of AGR using the MLPLB-estimated VB parameters ... were closer to, but still substantially higher than, the mean trend in observed AGR values with ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 43–66 : Autor(es): Candy, S.G., A.J. Constable, T. Lamb and R. Williams
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Computer program for the calculation and validation of Verhoeff check digits
type of errors in data for analysis are minimised. Accurate recording of the sequence numbers on tags ... the tag sequence number, can assist in the identification of errors in recorded data. A computer ...
Meeting Document : WG-FSA-SAM-05/11 : Autor(es): A. Dunn (New Zealand)