Search results
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Data on juvenile fish surveys within South Georgia
Abstract: Data on 6 juvenile fish surveys within South Georgia Subarea have been analysed in the ... paper. There has been revealed that the most abundant species in the catches by juvenile fish trawl were ... Champsocephalus gunnari and Lepidonotothen larseni and those the most varions were the representatives or ... on size-composition of most abundant species taken with a midwater trawl, as well as on their size ...
Meeting Document : WG-FSA-96/58 : Author(s): Frolkina, Z.A.
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A synoptic review of energetic requirements of southern ocean krill predators
requirements of krill predators that may be in the most direct competition with the krill fishery. These krill ... Abstract: The purpose of this paper is to synthesize information on the energetics and food ... compiled for each species. Estimates' of the amount of krill needed. to sustain individuals and/or ... predators are the Adélie (Pygoscelis adeliae), chinstrap (Pygoscelis antarctica), gentoo (Pygoscelis papua ...
Meeting Document : WG-EMM-96/19 : Author(s): Stansfield, A.M.
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SELECTIVITY OF CONVENTIONAL AND CONTINUOUS TECHNIQUES OF KRILL FISHERY
Abstract: Combination of conventional and continuous techniques during krill fishery at the ... Russian commercial vessel "Maxim Starostin" allowed to compare the size structure of the ... Antarctic krill (Euphausia superba) caught by these two techniques. Results of comparison are discussed in ... relation to the selectivity of fishing gears and the space-time variability of krill. Differences between ...
Meeting Document : WG-EMM-11/14 : Author(s): D. Sologub (Russia)
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Midwater trawl catchability as an aspect of a quantitative assessment of krill biomass conducted using a trawl census survey
is detennined according to mean specific biomass for each stratum. Finally, total krill biomass for the entire ... by the trawl over a standard hauling period; mq - mean catch per standard hauling period T; P - trawl ... of mean catch per standard hauling period T; - relative error in estimate of trawl catchability ... to the accepted confidence probability £ - number of hauls aq,op,ap - mean standard deviations in the catch ... variable which depends on both the behavioural and distributional characteristics of the target species and ... midwater trawls and small research trawls, in this case using an Isaacs-Kidd trawl, demonstrated the ... futility of using the latter for trawl census survey biomass assessments due to their highly variable ... can facilitate selecting the optimal construction of commercial midwater trawls. Assessments of the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 257–272 : Author(s): Kasatkina, S.M.
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Distribution of mackerel icefish by size-group at South Georgia
of 8 depth strata with mean depths of 112, 137, 165, 185, 208, 230, 257 and 308 m. Fish were divided ... with mean depths of 112, 137, 165, 185, 208, 230, 257 and 308 m. Fish were divided into size groups ...
Meeting Document : WAMI-01/16 : Author(s): A.W. North and I. Everson (United Kingdom)
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OCEAN-BOTTOM KRILL SEX
Abstract: For the first time the entire sequence of the mating behaviour of Antarctic krill ... (Euphausia superba) in the wild is captured on underwater video. This footage also provides evidence that ... mating can take place near the seafloor at depths of 400–700 m. This observation challenges the generally ... accepted concept of the pelagic lifestyle of krill. The mating behaviour observed most closely resembles ...
Meeting Document : WG-EMM-11/P7 : Author(s): S. Kawaguchi, R. Kilpatrick, L. Roberts, R.A. King and S. Nicol
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Homogeneity of Adélie penguins as krill samplers
that it is possible to obtain estimators for mean lengths from samples obtained from a patchy distribution ... of krill measure (Level 0). Table 1 shows the date of sampling, mean length, variance and number ... increased, until it became significantly different from zero for C = 2.83 mm, equivalent to 7% of the mean ... to be eating similar sized krill. Mean lengths derived from stomach contents of penguins are formally ... penguins in the length of krill eaten, using data from Esperanza Bay. The variance component-0.26 was not ... penguins to estimate parameters of the prey population without discriminating by sex, weight or other ... Paper Title: Homogeneity of Adélie penguins as krill samplers Abstract / Description: A nested ... ANOVA design was used to measure the variance component due to differences between individual Adélie ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 253–257 : Author(s): Marschoff, E. and B. Gonzalez
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CEMP cameras data validation experiment at the Galindez Island gentoo colonies
, provided continuous observations every day of gentoo nests in the three sites where automatic time-lapse ... Abstract: We inform on the results of the data validation experiment provided for pictures from ... time-lapse cameras of the CEMP camera monitoring project of CCAMLR at Galindez Island gentoo colonies ... cameras installed. The results of visual observations have been compared with data from camera pictures ...
Meeting Document : SC-CAMLR-XXXVII/BG/20 : Author(s): A. Dzhulay, V. Smagol, G. Milinevsky, I. Dykyy, A. Simon, M. Telipska, E. Dykyy, L. Pshenichnov and A. Grytsai
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How many krill should we measure?
of 2000 animals per sample, comparisons were made in mean body length and cumulative frequency ... estimates on mean body length. At least I000 measurements are desirable to get reliable estimates ... animals per sample, comparisons were made in mean body length and cumulative frequency distribution ... on mean body length. At least I000 measurements are desirable to get reliable estimates on cumulative ...
Meeting Document : WG-KRILL-90/26 : Author(s): Y. Endo (Japan)
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Fishery Report: Dissostichus eleginoides Crozet Island inside the French EEZ (Subarea 58.6)
and management advice............................................. 7 7.1 Conservation measures ... of records extracted (sets), catch by SSRU (catch, tonnes), number of vessels (vessels) mean catch per set ... (tonnes/set), mean catch per hook (kg/hook) and mean depth fished (m), 1997–2008. Season Sets Catch ... ) Mean depth (m) 1996/97 69 - 61.2 14.3 75.5 1 1.1 0.27 1107 1997/98 8 - 12.1 - 12.1 1 1.5 0.26 1115 ...
Document : Site Section: Publications