Resultados de la búsqueda
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Decadal trends in abundance, size and condition of Antarctic toothfish in McMurdo Sound, Antarctica, 1972–2011
Abstract: We report the analyses of a dataset spanning 39 years of near-annual fishing for ... Dissostichus mawsoni in McMurdo Sound, Antarctica, 1972–2011. Data on total length, condition and catch per ... dominated by fish in the upper two-thirds of the overall distribution exhibited in the industrial catch for ... then decreased. Fish length positively correlated with Ross Sea ice extent in early spring, a ...
Meeting Document : WG-FSA-12/P04 : Autor(es): D.G Ainley, N. Nur, J.T Eastman, G. Ballard, C.L Parkinson, C.W Evans and A.L. DeVries
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Research plan for the exploratory longline fishery for Dissostichus spp. in 2014/15 in Division 58.4.3a
coming years in order to achieve a robust stock assessment that would provide advice on a catch limit ... Abstract: In 2011/2012, the Saint André conducted its first exploratory fishery for Dissostichus ... spp. in division 58.4.3a. France notified its wish to continue this exploratory fishery over the ... rate applied to D. eleginoides in Subarea 48.4 (γ = 0.038) gives yields of 15 tons. But biomass ...
Meeting Document : WG-SAM-14/17 : Autor(es): Delegation of France
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Research plan for toothfish in Division 58.4.4a & b by Shinsei Maru No. 3 in 2013/14
years in the same locations as in the 2012/13 season, with the same survey design and sample size of a ... zero to all observed IUU fishing, and using constant YCS (year class strength) in SSRU C. The ... Abstract: We made stock status assessments of Dissostichus eleginoides in SSRUs C and D in ... quarter of observed IUU fishing in the division had occurred in SSRU C. High estimated stock levels were ...
Meeting Document : WG-SAM-13/21 : Autor(es): Delegation of Japan
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GROUNDFISH SURVEY IN CCAMLR SUB-AREA 48.3 IN APRIL 2008 WITH PRELIMINARY ASSESSMENT OF MACKEREL ICEFISH
tonnes in Years 1 & 2 respectively. The Patagonian toothfish population was dominated by the same ... the 1+ fish produced yield of 3445 tonnes in Year 1 (2008/09) and 2318 tonnes in Year 2 (2009/10). In ... Abstract: In April 2008 the UK undertook a bottom trawl survey of CCAMLR Sub-Area 48.3 on the FV ... + and 3+ fish, with differences in the size between Shag Rocks and South Georgia and with few small fish ...
Meeting Document : WG-FSA-08/28 : Autor(es): M.A. Collins, R.E. Mitchell, C.E. Main, J. Lawson, J. Watts, J. Slakowski, L. Featherstone and O. Rzewuski (UK)
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Contrasting population changes in sympatric penguin species in association with climate warming
ice adapted gentoo penguins increased significantly in numbers over the last 26 years, whereas ... Abstract: Climate warming and associated sea ice reductions in Antarctica have modified habitat ... demonstrate remarkable population responses to regional warming. However, inconsistencies in the direction of ... chinstrap and Adélie penguins both declined. These trends occurred in parallel with regional long-term ...
Meeting Document : WG-EMM-06/P3 : Autor(es): J. Forcada, P.N. Trathan, K. Reid, E.J. Murphy and J.P. Croxall (United Kingdom)
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Revised research plan for the exploratory fisheries for Dissostichus spp. in Subarea 48.6 in 2014/15
CPUE method (using Division 88.2H as a reference area) for Dissostichus mawsoni in block 486_2. However ... , the estimates using the Petersen estimator were different from those using the CPUE method in other ... ) were relatively consistent with the observed numbers for D. mawsoni in the block 486_2 for 2012/13 and ... Dissostichus spp. in other blocks. As we proposed at the last WG-SAM meeting, since we have yet to obtain ...
Meeting Document : WG-FSA-14/17 : Autor(es): Delegation of Japan
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Research plan for the exploratory fisheries for Dissostichus spp. in Subarea 48.6 in 2014/15
least 3 years with the same sample size as decided at the last CCAMLR meeting in the current research ... were inconsistent for Dissostichus spp. in other blocks. As we proposed at the WG-FSA meeting last year ... exploratory fishery of toothfish in Subarea 48.6. The stock sizes for five research blocks (486_1, 486_2 ... that using the CPUE method for Dissostichus mawsoni in block 486_2. However, the estimates using the ...
Meeting Document : WG-SAM-14/01 : Autor(es): Delegation of Japan
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The results of performance of tagging programs of the Korean exploratory fishery for Dissostichus spp. in 88.1 in the 2010/11 season
participated in the exploratory fishery from 1st Dec 2010 to 10th Jan 2011 for Dissostichus spp. The fisheries ... took place in subarea 88.1 BCJL. During their activities, the vessels gathered scientific information ... presented the results from the fisheries and comparison of statistics in each SSRU. Total catch including by ... -catches in 88.1 BCJL were 35,436 fishes. Dissostichus Spp. was the highest catch, contributing 99.62% to ...
Meeting Document : WG-FSA-11/54 : Autor(es): T. Jung and H.J. Choi (Republic of Korea)
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Results of the fifth Ross Sea shelf survey to monitor abundance of sub-adult Antarctic toothfish in the southern Ross Sea, February 2016, and notification for continuation in 2017
a mode at 75 cm, and that the older year class has 100 cm. The decline in the catch rates from 2012 ... subsequent year classes. The increase in 2016 is also reflective of the introduction of a new, stronger year ... first four surveys were completed in February 2012, 2013, 2014, and 2015. In this paper we provide ... results of the fifth survey in the time series. The objectives of this survey were: (1) to continue a time ...
Meeting Document : WG-SAM-16/14 : Autor(es): A. Dunn, C. Jones, S. Mormede and S. Parker
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Research plan for toothfish in Divisions 58.4.4a and b by Shinsei Maru No. 3 in 2011/12
Abstract: A tagging survey in SSRUs B and C in Division 58.4.4 a & b was initiated in the ... structure, size, movement and growth of Dissostichus spp. in the centered area of Division 58.4.4 a & b ... . In the 2010/11 a total of 189 D. eleginoides were tagged and released in SSRUs B and C. Four tagged D ... . eleginoides, of which two fish were tagged and released in SSRU C during the 2007/08 and 2009/10 preliminary ...
Meeting Document : WG-SAM-11/07 : Autor(es): Delegation of Japan