Search results
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Possible effects of different levels of krill fishing on predators – some initial modelling attempts
predator species. A 039;one-way039; interaction model is developed, in which krill abundance ... on this approach are deferred pending further development of the 039;one-way039; analyses. File: 06butterworth ... . A 'one-way' interaction model is developed, in which krill abundance fluctuations impact ... on this approach are deferred pending further development of the 'one-way' analyses. ... maturity plus a gestation period of essentially one year), while for birds it is the age at first laying ... t o b e the biomass of age classes 1 and above (i.e., the '1 + biomass ' ) a t t he 'start' of t h e year (i.e ... ' a n 8 ~ o o r j years, q 0.69 0.67 0.64 0.64 Age-at-First-Reproduction T (yr) 4 4 5 10 The va lues ... year if an upper bound of 1.5 yr-' on the effective annual fishing mortality for fully selected age ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Author(s): Butterworth, D.S. and R.B. Thomson
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Report on an Antarctic cetacean survey on board a Chilean fishing vessel in February 2016
within these comparably small areas of high animal density should be tolerated. We recommend ... within these comparably small areas of high animal density should be tolerated. We recommend ...
Meeting Document : WG-FSA-16/19 : Author(s): S. Viquerat, H. Herr, K.-H. Kock and P. Arana
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Measurements of sound-speed and density contrasts of Antarctic krill (Euphausia superba) on board RV Kaiyo Maru
contrasts between the animal and the surrounding water are required. Sound-speed and mass-density of krill ... contrasts between the animal and the surrounding water are required. Sound-speed and mass-density of krill ...
Meeting Document : WG-EMM-08/56 Rev. 1 : Author(s): Y. Takao, H. Yasuma, R. Matsukura, K. Amakasu and M. Naganobu (Japan)
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REVISED RESEARCH PLAN FOR TOOTHFISH IN DIVISION 58.4.4A and B BY SHINSEI MARU NO. 3 IN 2009/10
line system respectively within one fishing line, will be used in order to standardize the CPUE of Trot ... line system respectively within one fishing line, will be used in order to standardize the CPUE of Trot ... research focusing on tagging program for a period of 3-5 years to estimate current stock size accurately ... -minute latitude x 20-minute longitude grid points, taking into account the need to deploy research hauls ...
Meeting Document : WG-FSA-09/12 : Author(s): Delegation of Japan
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The Patagonian toothfish (Dissostichus eleginoides) fishery in the Kerguelen Islands (Indian Ocean sector of the Southern Ocean)
eleginoides) have been fished in the Kerguelen Islands zone for 20 years, firstly with trawlers and more ... for 20 years, firstly with trawlers and more recently with longliners. This is the oldest fishery ... in each sample changes from one year to the other). results Trawling (1979 to 2001) The first model ... different methods (one sweeps the sea floor, the other one attracts fish). Moreover, targeted fishing ... are withdrawn one by one for different GLMs. The QAIC is calculated for each model. The lowest value ... to three depth ranges (500–1 000, 1 000–1 500 and >1 500 m); the second also analyses the aver- age size ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 1–25 : Author(s): Lord, C., G. Duhamel and P. Pruvost
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e-sc-xxxi-a05.pdf
... . 3.2 With respect to the requirement to complete at least one research haul for every three commercial ... hauls after the first 10 research hauls, the Working Group noted that in all cases, except for one ... of specific datasets. In addition, greater detail should be provided on how and when age determination ... to assess growth or age structure would be conducted. The 144 Working Group agreed that research ... that in all cases, except for one vessel, this requirement was met. However, on several occasions the ... -FSA this year to make further progress on refining the 3 n mile requirement if the interim ... should be provided on how and when age determination to assess growth or age structure would be ... implications for CPUE comparisons in particular locations between years, but the effect on tag-returns at this
application/pdf attached to:WG-SAM-12
Meeting Report : WG-SAM-12
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Fishery Report 2017: Exploratory fishery for Dissostichus mawsoni in Division 58.4.1
there were two to three IUU fishing vessel sightings, in both 2008 and 2009 when one IUU fishing vessel ... vessels, two using gillnet, one longliner and one refrigerated cargo vessel, in 2011. There were two IUU ... in Division 58.4.1. 2 3. In 2017, the fishery was limited to one vessel from each of Australia, France ... and one each from France, Japan, Korea and Spain, have notified their intention to participate ...
Document : Site Section: Publications
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Distribution of mackerel icefish (Champsocephalus gunnari) (Channichthyidae) around South Georgia at various stages of its life cycle
into account the spatial–temporal variability of C. gunnari. Young fish of the first age group (<15 cm ... of C. gunnari. Young fish of the first age group (<15 cm in length) were mainly found in the southern part ... are becoming warmer. Subsequently fi sh gradually migrate into deeper waters. At the age of one year, young ... migrate to the Shag Rocks area most probably die after reaching two years of age. The abovementioned ... and one year old. The ecological niche occupied by young fi sh is distinctly different from ... (Efremenko, 1979, 1983; Kock, 1981, 1989; North, 1987). Young fi sh older than one year inhabit pelagic ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 49–69 : Author(s): Frolkina, Zh.A
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Finfish distribution and abundance in Subareas 48.1 and 48.2, years 2016–2018
distribution and abundance in Subareas 48.1 and 48.2, years 2016–2018 Approval: Approved Secretariat Workflow ... Finfish distribution and abundance in Subareas 48.1 and 48.2, years 2016–2018 ...
Meeting Document : WG-SAM-16/19 : Author(s): P.M. Arana, G. Plaza, J. Arata, N. Alegría and S. Viquerat
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Seabird mortality in the Patagonian toothfish longline fishery around the Prince Edward Islands, 1996–2000
away from the islands over the years. We estimate that the combined impact of sanctioned and IUU ... away from the islands over the years. We estimate that the combined impact of sanctioned and IUU ... and Unreported (IUU) fishing. Independent fishery observers accompanied all but two sanctioned trips between 1996 ... , during the first year, when lines were set during the day and night, a significant number of albatrosses ...
Meeting Document : WG-FSA-01/8 : Author(s): D.C. Nel, P.G. Ryan and B.P. Watkins (South Africa)