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Phytoplankton: Trophic modelling of the Ross Sea
cloud-free days (Comiso et al. 1993). By averaging data for each month over a number of years (1997 ... 228 gCg-1Chl-a in the Ross Sea. DiTullio & Smith (1996) give an average value of 130 gCg-1Chl-a for ... an empirical function that they state explains ~80% of the variance of C:Chl-a ratios in the ... Sea during the growing period. Vaillancourt et al. (2003) give an average of 0.4–1.2 gC m-2 d-1 for ...
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Fishery Report: Dissostichus eleginoides South Georgia (Subarea 48.3)
proportion 40 1 50 0.95 60 0.95 70 0.95 80 0.9 90 0.85 100 0.83 110 0.83 20. Exploratory runs and ... program has been under way for three years in Subarea 48.3. The results of the program should enable an ... . Year Sample size for age determination 1998 250 1999 259 2000 298 2001 467 2002 200 2003 200 ... groundfish survey hauls shallower than 400 m around Shag Rocks. Length (cm) Year 10 15 20 25 30 35 40 45 ...
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Fishery Report: Dissostichus eleginoides and Dissostichus mawsoni South Sandwich Islands (Subarea 48.4)
. The models were run over the years 1990 to 2011, with an initial unexploited equilibrium age ... (5% of the catch limit for D. eleginoides). Subarea 48.4 South – (i) an experimental ... precautionary catch limit of 30 tonnes for Dissostichus spp. (D. eleginoides and D. mawsoni combined); (ii ... and 30 tonnes for Dissostichus spp. in Subarea 48.4 South TOT 48.4 4 Weighted Frequency ...
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Fishery Report: Champsocephalus gunnari (ANI) Heard Island (Division 58.5.2)
selectivity vector was used for C. gunnari, starting at 2.5 years and fully selected at age 3. ANI ... Increments in year 365 Years to project stock in simulation 2 Reasonable upper bound for annual F 5.0 ... commercial operation and a catch limit of 30 tonnes of C. gunnari was set aside for research and by-catch ... densities-at-age was derived using the CMIX program and selecting the mean length for ages 1–5 by eye ...
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Fishery Report 2017: Champsocephalus gunnari Heard Island (Division 58.5.2)
used for C. gunnari, starting at 2.5 years and fully selected at age 3. 16. The short-term ... Increments in year 365 Years to project stock in simulation 2 Reasonable upper bound for annual F 5.0 ... years. Size at first maturity for females is 26.5 cm and for males is 28.5 cm total length. Reported ... . Nevertheless, the length frequencies for C. gunnari in Division 58.5.2 typically show a single dominant age ...
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Fishery Report 2017: Dissostichus eleginoides and D. mawsoni South Sandwich Islands (Subarea 48.4)
assessed using an age-structured CASAL integrated stock assessment model for both sexes combined with ... -catch species, as well as collection of toothfish otoliths for age determination. 3 Length ... this fishery are presented in Figure 1 for all years in which the number of that species measured was ... 2008 there were no specified limits, from 2009 to 2013 there was an overall by-catch limit for ...
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Zooplankton: Trophic modelling of the Ross Sea
proportion of body carbon for growing krill for krill of 20, 30 and 40 mm length, giving values of Q/B ... years, assuming that growth periods are only for 4–6 months of the year (Ikeda, 1985). Euphausia ... . crystallorophias up to between 0.02–474 gWW/1000m3 were found, with an average value for E. crystallorophias and E ... . crystallorophias density tabulated was an average over the maximum fishing depth for the trawl. The depths of the ...
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SC-CAMLR-SSP/5 – Part I, 1988
checked by simulation for more detailed krill distribution models; however, such an exercise is outside ... they should be an aspect for attention in subsequent studies. There is some further justification for ... = U[1 O/-V;;;, 20/"~] n miles The basis for this choice is to be found in Butterworth and Miller ... follows for estimating the median value, was drawn to the author's attention by I. Hampton. Consider an ...
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FAO PSM Guide
for the Oceans”, which was some 14 years in the making. It provides the international legal basis for ... group of international scholars and civil society, the Commission, which ran for three years, focused ... yield with the aim of achieving these goals for depleted stocks on an urgent basis and where possible ... arrangements [RFMO/As]). Twenty years after the Earth Summit, the Rio+20 Conference will be held in June ...
Document : Site Section: Compliance
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Fishes of the Ross Sea Region – A field guide to common species caught in the longline fishery
. The guide covers 30 fishes from 11 families including cartilaginous fishes (skates) and bony teleost ... . Reach age of about 14 years. Specimens required: Please retain good examples for the Museum ... . For each species there is an annotated colour image (if available), and text covering distinguishing ... & Heemstra (1990), and Nelson (2006). An ‘example species’ image for each family is provided as a quick ... : Little known. Reach age of about 37 years. Specimens required: Please refer to any separate annual ...
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