Search results
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Analyses of acoustic line-transect data from the waters around South Georgia: estimation of krill (Euphausia superba Dana) biomass
t (Coefficient of Variation = 9.5%). This gives an estimate of mean density throughout the region of 11.7 t km ... -2. Although the estimate of the mean is not sensitive to the definition of strata, the variance ... t (Coefficient of Variation = 9.5%). This gives an estimate of mean density throughout the region of 11.7 t km ... -2. Although the estimate of the mean is not sensitive to the definition of strata, the variance ...
Meeting Document : WG-KRILL-91/30 : Author(s): E. Murphy, I. Everson and A. Murray (United Kingdom)
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Homogeneity of body length composition of Antarctic krill within the commercial zone
the area and exhibited similar mean lengths. Whereas in areas where the overall length composition ... . MORRIS and C. RICKETTS. 1985. Nocturnal changes in the mean length of a euphausiid population: vertical ... Abstract / Description: The homogeneity of krill (Euphausia superba) length composition in commercial ... that sampling from one part of the haul provides a reasonable estimate of length composition in the ... Paper Title: Homogeneity of body length composition of Antarctic krill within the commercial zone ... trawl catches (hauls) was investigated by comparing length compositions from different parts of the same ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 17–28 : Author(s): Ichii, T.
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Swimming speed and allocation of time during the dive cycle of Antarctic fur seals
foraging at sea. Mean swimming speeds during diving ranged from 1.32 to 1.99 ms-1 and 90% of diving ... of reduced foraging time and may explain why mean dive depths for individuals were within the range of 12-33 ... in 10 adult female Antarctic fur seals (Arctocephalus gazella) while they were foraging at sea. Mean ... explain why mean dive depths for individuals were within the range of 12-33 m. These data broadly support ...
Meeting Document : WG-EMM-95/25 : Author(s): Bevan, R.M., Boyd, I.L., Reid, K.
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Preliminary analysis of toothfish catch, CPUE, size structure and mark-recapture data from SSRUs 486A and 486G, with comments on the sustainability of different harvest levels
to the mean length at that age. The model makes provision for IUU catches, insofar as this is possible given ... is proportional to the mean length at that age. The model makes provision for IUU catches, insofar ...
Meeting Document : WG-FSA-12/31 : Author(s): E. Thomson and M. Bergh (South Africa)
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Analysis of potential threats from fishing to the objectives of a proposed Ross Sea region MPA
particular threats can be foreseen and located in space, MPA designation is one effective means of avoiding ... particular threats can be foreseen and located in space, MPA designation is one effective means of avoiding ...
Meeting Document : SC-CAMLR-IM-I/09 : Author(s): Delegations of New Zealand and the USA
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Observations of fishing operations on a krill trawler and distributional behaviour of krill off Wilkes Land during the 1985/86 season
) as well as length composition - 345 - seems to be a possible means of detecting yearly changes ... (L.r.HO-E) Fig. 6. Profiles of diurnal variations of mean light intensity, vertical, distribution ... of krill, catch per haul and catch per towing time. Catch per towing time is standardized to mean catch ... Ha nepl10A BpeMeHI1, K:Of'Aa 'IaCTO BCTpe'IaJII1Cb rrOBepXHOCTHhle CK:OrrJIeHI1R. YJIOB 3a ... of krill off Wilkes Land during the 1985/86 season Abstract / Description: Japanese krill fishing ... operations were observed on board a commercial vessel and the actual operation described in detail. ‘Fish ... -finder’ was most useful in detecting swarms, while sonar was used to judge the towing direction. The size ... of fished swarms ranged from 100 m to 10 km with different distributions occurring in different ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 335-368 : Author(s): Ichii, T.
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Utilising data from ecosystem monitoring for managing fisheries: development of statistical summaries of indices arising from the CCAMLR Ecosystem Monitoring Program
appeared in the data. An alternative procedure, using estimates of the mean and variance of baseline time ... appeared in the data. An alternative procedure, using estimates of the mean and variance of baseline time ...
Meeting Document : WG-EMM-00/14 Rev. 1 : Author(s): W. de la Mare and A. Constable (Australia)
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Population demography of Antarctic fur seals: the costs of reproduction and implications for life-histories
reproductive output (ages 5-8 years). 5. Mean pregnancy rate was 0•70 (SD = 0•11) with an interannual range ... reproductive output (ages 5-8 years). 5. Mean pregnancy rate was 0•70 (SD = 0•11) with an interannual range ...
Meeting Document : WG-EMM-95/26 : Author(s): Reid, K., Croxall, J.P., Lunn, N.J., Boyd, I.L.
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Data and approach for the revised stock assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery (Division 58.5.2)
for Patagonian toothfish, Dissostichus eleginoides, at Heard Island and the McDonald Islands (HIMI) in ... CCAMLR Division 58.5.2. Since the last assessment in 2013, an extensive program for ageing otoliths has ... . We have therefore made substantive progress in addressing the main points raised during WG-FSA 2013 ... Abstract: This paper presents the data and assessment approach for the revised stock assessment ...
Meeting Document : WG-SAM-14/23 Rev. 1 : Author(s): P. Ziegler and D. Welsford (Australia)
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Comparison of estimators of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial Distribution
of this ESS when process error variance was set to zero with relative mean square error an order of magnitude ... of this ESS when process error variance was set to zero with relative mean square error an order of magnitude ...
Meeting Document : WG-SAM-07/7 : Author(s): S.G. Candy (Australia)