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Midwater trawl catchability as an aspect of a quantitative assessment of krill biomass conducted using a trawl census survey
. 1. INTRODUCTION Direct census surveys using midwater trawls as well as scientific research fishing ... remain part of an integrated approach to krill studies. VariOllS types of midwater research (e.g. RTM-1 ... hauling period T; P - trawl catchability. (1) (2) Assuming that information on values So S, B, Bo ... contains no errors, the relative error in the biomass estimate from formulas 1 and 2 will be calculated as ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 257–272 : Автор(ы): Kasatkina, S.M.
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Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands
principales * National Research Institute of Far Sea Fisheries, 5-7-1, Orido, Shimizu, 424 Japan 123 ... , 1'abondance de kriU etait inferieure a celle des saisons precedentes. La biomasse totale de kriU ... . 1. INTRODUCTION Krill concentrations regularly observed in the waters north of the South Shetland ... the western side of the Antarctic Peninsula (Leg I: 22 to 29 December, 1990, Figure 1), whereas the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 123–140 : Автор(ы): Ichii, T., H. Ishii and M. Naganobu
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Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys
estas areas, si se considera la pesqueria en un contexto global. 1. INTRODUCTION Since 1974 when ... of krill in the southern Scotia Sea is less than 1%, are not considered here. 2. METHODS 2.1 ... study was restricted to the South Shetland and South Orkney Islands (Figure 1). Elimination of the ... by birds and seals in the Scotia Sea. Using their Table 1 it is possible to calculate mean monthly ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 287–303 : Автор(ы): Agnew, D.J.
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Scientific Abstracts 1998
....................................................... 1 Scientific Committee................................................ 1 Workshop on Area 48 (WS ... , Luis Thayer Ojeda 814, Correo 9, Providencia, San- tiago, Chile), 1 p. (English, unpublished ... /BG/2 Rev. 1 Draft CEMP Tables 1 to 3. CCAMLR Secretariat, 20 pp. (English, unpublished). SC-CAMLR ... pairs, and the remainder by non-breeding adults. The three 1 600 m2 census areas set up in 1996 around ...
Document : Site Section: Publications
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Identifying taxonomic groups vulnerable to bottom longline fishing gear in the Ross Sea region
categories and listed examples of organisms and areas (mega- habitats) considered to be vulnerable (Annex 1 ... designates a 1 n mile- radius risk area around the location of the longline segment midpoint. Monitoring ... between 500 and 2 200 m (Figure 1). Currently, ves- sels are restricted to fishing in certain small-scale ... during the past sev- eral fishing seasons, the answer is yes (Table 1). However, impact is expected to ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 105–127 : Автор(ы): Parker, S.J. and D.A. Bowden
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A risk-management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems
significant adverse impacts on VMEs (SC-CAMLR, 2007a, para- graph 4.164) (Figure 1). desconoce. No obstante ... ). Similarly, Figure 1: Framework for indicating scientific and data collection activities to manage bottom ... complete set of scenarios c, i.e. ( ) ( ){ }, ,i i i i i cR S p p Xϕ= (1) (Kaplan, 1997) where pi(ϕi ... general defini- tion provided in equation (1). Generic risk-management framework The approach proposed ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 177–193 : Автор(ы): Martin-Smith, K
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Do krill and salps compete? Contrary evidence from the krill fisheries
National Research Institute of Far Seas Fisheries 5-7-1 Orido, Shimizu, Shizuoka, Japan 424 W. K. de la ... areas shown in Figure 1 were extracted and used in the analysis (6 911 hauls in total). All vessels ... . Statistical Analysis The results of the analysis of deviance (Table 1) show that each factor and ... . DISCUSSION Seasonal Pattern of Green Krill Results from the statistical analysis (Table 1) clearly show ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 205–216 : Автор(ы): Kawaguchi, S., T. Ichii, M. Naganobu and W.K. de la Mare
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Investigations of required sampling regimes for environmental parameters
, transformada logaritmicamente, con una significacion ex de 0.05 y una potencia P de 0.9. 1. IN1RODUCflON ... parameter with a significance level exS 01 and a statistical power of P (= 1-~) ;::: 0.8. This paper ... (1-P)[v])2 where 0' is the true standard deviation, 0 is the smallest true difference that it is ... which the effect is detected), ta[v] and t2(1-P)[v] are obtained from a two-tailed t table with v ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 561–573 : Автор(ы): Agnew, D.J.
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Potential interactions between wandering albatrosses and longline fisheries for Patagonian toothfish at South Georgia
, ~ ~ 0 6 6 1 YIIpaBneHHe XpYCHbIM IIpOMbICJlOM D. eleginoides B pafi0~e K)xHo~~ re0prkiH OCyII ... Figure 4. This fishery operates mainly over the edge of the continental shelf at depths of around 1 000 ... m and deeper. - - and fishing took place in most months of the year with between 1 and 12 ... these periods we have have limited vulnerability to longline fishing data on a total of 1 976 haul ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 101–110 : Автор(ы): Croxall, J.P. and P.A. Prince
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Scar group of specialists – Marine living resources of the Southern Ocean
Industries P. 0. Box 251 Cape Town, South Africa 8000 >1 Dr. Donald B. Siniff Food and Agriculture ... enunciated in its Terms of Reference, are as follows: (1) To assess the present state of our knowledge of ... Specialists, are the following: (1) To assess the present state of knowledge of the Antarctic marine ... SPECIALISTS ON MARINE LIVING RESOURCES OF THE SOUTHERN OCEAN 1. Adoption of agenda Scott Polar Institute ...
Document : Site Section: The Organisation
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