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Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of tag-detection rates
calculation by using CCAMLR Science, Vol. 20 (2013): 73–80 73 QuantIfyIng vessel performance In the ccamlr ... window used was a circle with a radius of 20 km, centred on the location of the case fishing event ... space window of 20 km was chosen because this value corresponded to the maximum 75 Quantifying ... for Subareas 88.1 and 88.2 by vessel for a space window of 20 km and time window of one season ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 73–80 : Автор(ы): Mormede, S. and A. Dunn
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Survey design to estimate krill abundance during FIBEX
echosignals or from examination of echocharts with respect to integrator output. 4. The operating frequency ... coincide with a periodicity in the krill distribution, is eliminated. 4. By taking account of the ... full account of the analytical methods used is given in BIOMASS (1985) . . 4 . ANALYTICAL FORMULAE ... Coordination Meeting Report, Dammarie-Ies-Lys, France, 4-6 June 1980. BIOMASS Report Series No. 13: 22 pp, 3 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 253–263 : Автор(ы): Everson, I., I. Hampton and G.M. Jolly
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Using ecosystem monitoring data to detect impacts
parameters of a baseline normal probability density function (PDF) were established from 20 observations ... baseline PDF were then used to test for impacts in 20 more obser- vations drawn from the baseline period ... , represent- ing an ‘unimpacted’ population, and 20 observa- tions drawn from a distribution representing the ... ÷= = -ç ÷ç ÷çè ø . (3) Thus ( ) (1 ) o t t o s t P s s p pϑ ϑ ϑ ϑ - = æ ö÷ç ÷³ = -ç ÷ç ÷çè øå . (4 ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 197–212 : Автор(ы): Hill, S.L., J. Forcada, P.N. Trathan and C.M. Waluda
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Management and assessment options for the crab fishery around South Georgia
exploitable part of the stock. The target for the Alaskan king crab is between 20 and 60% depending on ... conservation measure with respect to the crab fishery (Conservation Measure 60/XI) currently applies to the ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 193–202 : Автор(ы): Basson, M. and D.D. Hoggarth
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Assessment and tag program adaption methods for exploratory fisheries in the CAMLR Convention Area: an example application for Division 58.4.3a
abundance data, I: Hillary 104 1 2 22 ,, ˆln ln1 ... exp 22 y y y Iy y I I I p I (4) where ... term in equation (4) is a composite of observa- tion (bar) and process error (PE): 2 2 2 , ,y I y I PE ... released that were not recaptured in the same season, TR, was 4 660. Given natural mortality, tag-induced ... future process error seem to have. Table 3 shows the predicted catch limits for 5, 10 and 20% CVs for ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 101–113 : Автор(ы): Hillary, R.M
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Soviet proposals for a program of ecosystem monitoring in the Commonwealth Sea and Prydz Bay
station grid should be north of 60 0 s. A standard grid of transects should be set up around the area to ... on the scientific findings obtained each year. - 362 - 4. PARTICIPANTS OF THE MONITORING ... knowledge available on the area, the program should reflect top priority objectives and areas of research ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 355-362 : Автор(ы): USSR
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Genetic variations and population structure of krill from the Prydz Bay region of Antarctic waters
- 271 - SC-CAMLR-V/BG/35 GENETIC VARIATIONS AND ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 271-273 : Автор(ы): MacDonald, C.M., R. Williams and M. Adams
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Catch-at-age analysis applied to new fisheries: the case of Dissostichus eleginoides
fishery operations should be flexible, whilst maintaining 4 the requirement for the acquisition of ... survey. (1) (2) (3) (4) (5) 5 So as to reduce the number of parameters, the specific ... probable range. 4. RECRUITMENT ESTIMATION Replacing (3) in (l) and summing over all ages, we may ... library 386-MATLAB was used, with A = 20 and a tolerance factor of 0.01. The smallest residual (SSQ ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 3–9 : Автор(ы): Zuleta, A.V. and C.A. Moreno
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A risk-management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems
) Remote (1) 0 1 2 3 4 5 Rare (2) 0 2 4 6 8 10 Unlikely (3) 0 3 6 9 12 15 Possible (4) 0 4 8 12 16 20 ... Assessment of bottom fishing activities Trigger levels and actions, mitigation measures 4. Evaluate risks ... circumstances 3 Unlikely Could occur at some time 4 Possible Might occur at some time 5 Likely Will probably ... extirpations. 25–50 One–few years 4 Severe Substantial loss to structure or function of ecosystem. Many ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 177–193 : Автор(ы): Martin-Smith, K
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Spawning locations of mackerel icefish at South Georgia
following day, two on 20 March and 14 on 30 March. 011 5 April the catch was just three, and no further ... ) reported a catch of 4 000 C, giinnari in a single haul. With the exception of eight small specimens (67 ... ; it is not clear whether at that time the female gonads were at an advanced stage 3 or stage 4 ... 1986 and 4 January 1987 along transects running offshore from the major embaymei-tts on the north ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 107–118 : Автор(ы): Everson, I., A.W. North, A. Paul, R. Cooper, N.C. McWilliam and K.-H. Kock
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