Resultados de la búsqueda
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UPDATE OF THE INTEGRATED STOCK ASSESSMENT FOR THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS (DIVISION 58.5.2)
. sub-fishery) and year-specific length frequency (LF) data. A Poisson log-linear (contingency-type ... sample sizes for the commercial catch-at-age proportions, assuming a multinomial distribution, and the ... coefficient of variation (CV) for the abundance-at-age, assuming a lognormal distribution, each took into ... random ageing error. CASAL allows a single ageing error matrix to be defined and applies this matrix to ...
Meeting Document : WG-FSA-09/20 : Autor(es): S.G. Candy and D.C. Welsford (Australia)
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RAPID WARMING OF THE OCEAN AROUND SOUTH GEORGIA,SOUTHERN OCEAN, DURING THE 20TH CENTURY: FORCINGS, CHARACTERISTICS AND IMPLICATIONS FOR LOWER TROPHIC LEVELS
variable data, a mixed model utilising a Residual Maximum Likelihood (REML) method was used. Over the 81 ... -year period, a mean increase of ~0.9°C in January and ~2.3°C in August was evident in the top 100 m of ... variaibility. It is likely that all of these play a part in the observed temperature increase. However, the ... warming has for South Georgia’s lower trophic levels. For Euphausia superba, we find a significant ...
Meeting Document : WG-EMM-08/P03 : Autor(es): M.J. Whitehouse, M.P. Meredith, P. Rothery, A. Atkinson, P. Ward and R.E. Korb
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Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Signy Island, South Orkney Islands, 2006/07
a seal wearing a neck collar of man-made debris. Data are compared with results from a parallel ...
Meeting Document : SC-CAMLR-XXVI/BG/20 : Autor(es): Delegation of the United Kingdom
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History of development and completion of tasks put forward by WG-EMM (2001/02)
Abstract: A history of development and completion of tasks put forward by WG-EMM is summarised ... records since the adoption by WG-EMM in 2001 of a new five-year plan of work. A history of tasks for the ...
Meeting Document : WG-EMM-03/23 : Autor(es): Secretariat
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Investigations on tagging data in the Kerguelen Islands Patagonian toothfish fishery (division 58.5.1)
Abstract: In 2014, FSA-14-36r1 presented a new assessment of Patagonian toothfish in the French ... EEZ. A singularity in the tagging fits was observed by the working group. A lower number of recaptures ...
Meeting Document : WG-SAM-15/43 : Autor(es): R. Sinegre and G. Duhamel (France)
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Fishing with pots in the Antarctic region (CCAMLR Statistical Subareas 48.1, 48.2 and 88.3)
the fishing gear, with a distance of approximately 90 m between them. The pots were lowered at a depth ... of 290-1 920 m. A total of 300 pots of four different designs were used. Approximately 1 kg of either ... ) with 51.2 g/pot. In general, P. anemerae was captured in all researched subareas, with a higher yield ...
Meeting Document : WG-FSA-98/20
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DEVELOPMENT OF EFFECTIVE MITIGATION TO REDUCE SEABIRD MORTALITY IN THE ICEFISH (CHAMPSOCEPHALUS GUNNARI) TRAWL FISHERY IN SUBAREA 48.3
Subarea 48.3 became a concern in the late 1990s. At this time there was little knowledge on how to ... mitigate such mortality. As an interim measures a vessel specific 20‐bird mortality threshold was ... introduced for Subarea 48.3 in 2001. This provided a strong commercial incentive for industry to develop ... several measures, including net‐binding and net weighting. Net binding has proved to be a highly effective ...
Meeting Document : WG-IMAF-09/15 : Autor(es): B. Sullivan (BirdLife International), J. Clark (United Kingdom), K. Reid (Secretariat) and E. Reid (BirdLife International)
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APPLICATION TO UNDERTAKE WINTER SCIENTIFIC RESEARCH IN CCAMLR SUBAREA 88.1 (SSRUS 88.1B, 88.1C AND 88.1G) IN THE 2008/09 SEASON
Abstract: New Zealand proposes to conduct a scientific research survey during the austral winter ... in CCAMLR SSRUs 88.1B, 88.1C and, ice permitting, 88.1G in 2008/09, as the first in a three year time ... series. The proposal is for a targeted longline survey designed to cover critical gaps in the knowledge ... of the life cycle of D. mawsoni in the Ross Sea by collecting biological samples from a broad spread ...
Meeting Document : WG-FSA-08/62 : Autor(es): Delegation of New Zealand
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Estimation of size at maturity and calculation of an appropriate size limit for male Paralomis formosa
Abstract: A number of weighted smoothing splines were fit to data on carapace length and size ... . Bootstrapping techniques provided a bias-corrected estimate of morphometric size at maturity (sBc) equal to 80 ... claws). Given the uncertainty in sBC and the lack of information about body size growth rates, a wide ... species, there does not seem to be a sufficiently strong biological reason to revise the size limit ...
Meeting Document : WG-FSA-96/35 : Autor(es): Watters, G.
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Gentoo penguin Pygoscelis papua diet as an indicator of planktonic availability in the Kerguelen Islands
zooplankton derived from penguins' diet matched closely those from net hauls during a year of high ... plankton availability (1987). On the other hand, a weaker correspondence was found during a year of ... therefore needed in the near future to validate the potential of penguin diet as a measure of plankton ...
Meeting Document : WG-Joint-94/11 : Autor(es): C.A. Bost, P. Koubbi, F. Genevois, L. Ruchon and V. Ridoux (France)