Search results
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Physical oceanographic setting of the Siedlecki January 1987, South Shetland Island data set
Paper Title: Physical oceanographic setting of the Siedlecki January 1987, South Shetland Island ... data set Abstract / Description: In the vicinity of the northern tip of the Antarctic Peninsula, the ... water from the Pacific Ocean. A series of fronts form which are collectively referred to as the Weddell ... Scotia Sea water by a zone of varied width (10 to 100 km) of water which can best be considered as ... Ocean, the better we appreciate the extent of its variability, at a variety of scales (Gordon, 1988 ... at the surface between stations 214 and 217 is quite strong, though the temperature expression of ... the front at the immediate surface is nearly absent. South of the front a warm-saline layer is ... Weddell continental margin water advected into the area. The scatter of points at temperatures below -0.5 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 161-184 : Author(s): Gordon, A.L.
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Diet study of Antarctic toothfish caught in the east Antarctic based on stomach content, fatty acid and stable isotope analyses
Paper Title: Diet study of Antarctic toothfish caught in the east Antarctic based on stomach ... isotope ratios were determined and compared with those of species caught as by-catch and collected from ... lesser extent squid. FA profiles in muscle tissues of Antarctic toothfish were very similar to those of ... between them. δ 15 N values of Antarctic toothfish were higher than for the other species collected ... food categories con- sidered at a given taxonomic level. To assess the precision of the index values ... described by Metcalfe et al. (1966). The extracted lipids were saponified at 100°C for 2 h with 1.5 ml of ... analyser to oxidise at high tem- perature (1 030°C). The resultant gases of CO2 and N2 were introduced ... the number, 88.7% of the weight and 90.2% of the IRI (Table 3). It was assumed at the time that the ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 29–44 : Author(s): Park, H.J. , I. Yeon, E. Han, Y.J. Lee, S.M. Hanchet, G.W. Baeck, Y. Kwon, S.G. Choi, D.W. Lee and C.K. Kang*
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Midwater trawl catchability in relation to krill and possible ways of assessing gross catch
with which they come into contact with the trawl net. 2.3 Analysis of the Level ofKrill Escapement Using ... Paper Title: Midwater trawl catchability in relation to krill and possible ways of assessing ... the basis of data obtained from AtlantNIRO expeditions from 1983 to 1990 in the Scotia Sea. A ... methodology was developed for and applied to determining the rate of krill filtration through the trawl rope ... and netting and also the probability that krill will come into contact with various parts of the net ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 87–113 : Author(s): Zimarev, Yu.V., S.M. Kasatkina and Yu.P. Frolov
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Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric characteristic?
index of a morphometric characteristic? Abstract / Description: In sexually dimorphic species ... discriminant analysis can be used to determine the sex of individuals, it is only able to correctly sex a ... certain proportion of birds. Two overlapping normal distributions are used to show that there is a ... using discriminant analysis. When discriminant functions are able to correctly determine the sex of ... size required in order to be 80% certain of detecting the difference at the 5% level of significance ... is shown in Table 1. At sample sizes of less than 300 for each sex, using a discriminant function ... sample at the extreme of the sex ratio variation, with ~* and a*, then 112 -Il * 'Y ... the sex ratios at the time of sampling. This could be done for a small sample by cloacal examination ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 259–272 : Author(s): Agnew, D.J.
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Quantification of Southern Ocean phytoplankton biomass and primary productivity via satellite observations and biogeochemical models (submitted to the 2008 Joint CCAMLR-IWC Workshop)
anomalies, mostly south of 60°S. North of 60°S, the positive phase of the SAM is associ- ated with negative ... Paper Title: Quantification of Southern Ocean phytoplankton biomass and primary productivity via ... / Description: This paper reviews Southern Ocean primary productivity within the framework of satellite remote ... sensing and the development of food-web models. The satellite ocean colour (chlorophyll) data record is ... Temperature Scanner (OCTS), the Seaviewing, Wide Field of view Sensor (SeaWiFS), the Moderate Resolution ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 247–265 : Author(s): P.G. Strutton, N.S. Lovenduski, M. Mongin and R. Matear
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Growth and natural mortality of Patagonian rockcod (Patagonotothen guntheri shagensis) from Shag Rocks shelf
Paper Title: Growth and natural mortality of Patagonian rockcod (Patagonotothen guntheri ... shagensis) from Shag Rocks shelf Abstract / Description: The parameters of Bertalanffy’s growth equation ... -weight data of research and fishery survey cruises in the Shag Rocks area from 1978 to 1986. The natural ... mortality rate was assessed by six different methods and was within a range of 0.63 to 1.06. The mean value ... of 2 to 5 years are most abundant. Sexual maturity is attained by fish at 11 to 13 cm length, 20 to ... ) reported that the length of fish at first maturation is 11 to 13 cm (Le. 2 years old). According to their ... data, 50% of fish attain sexual maturity at a length of 15.6 to 16.5 cm. 115 Our observations ... estimated at 2.5 years. Hence, with T =2.5 years, the natural mortality rate will be 0.73. The range of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 111–121 : Author(s): Shlibanov, V.I.
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By-catch of fish in the krill fishery
Paper Title: By-catch of fish in the krill fishery Abstract / Description: Observations are ... reported of icefish being taken as by-catch during krill fishing operations from a research vessel. The ... results indicate that the by-catch of fish in the commercial krill fishery may be significant in some ... areas of the South Georgia shelf. The problem is thought to be least in open ocean krill fishing. File ... commercial fleet in the area. Position at the end of each haul was recorded along with maximum and minimum ... Myctophidae Catches of Myctophidae tended to occur over deep water, in some instances at a great distance ... that we have reported here were obtained during the first few months of the year. Krill fishing at ... of Trawling, i-Water Depth at End of Trawling, j-Minimum Depth of Footrope of Net, k-Maximum Depth ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 381–401 : Author(s): Everson, I., A. Neyelov and Y.B. Permitin
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Characteristics of krill aggregations in the South Sandwich Islands subarea in January–February 2000
Paper Title: Characteristics of krill aggregations in the South Sandwich Islands subarea in ... January–February 2000 Abstract / Description: During the survey of Subarea 48.4 from 17 January to 1 ... swarms. Differences between spatial distribution patterns of different krill aggregation forms in ... characteristics of some 2 400 krill swarms detected in the study area were sized acoustically and are described in ... Atlantida. Acoustic measurements were made using a Simrad EK500 echosounder at frequencies of 38, 120 and ... ). Non-aggregated and scattered forms observed at depths below 80 m were confi ned to zones of sinking ... le 1 : Pr in ci pa l p ar am et er s of th e m id w at er tr aw l P T 7 2/ 30 8 ... s tr at um no n- ag gr eg at ed fo rm s sc at te re d fo rm s fi el d s of s w ar ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 145–164 : Author(s): Kasatkina, S.M., A.P. Malyshko, V.N. Shnar and O.A. Berezhinsky
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Fatty acid and stable isotope analyses to infer diet of Antarctic toothfish caught in the southern Ross Sea
Paper Title: Fatty acid and stable isotope analyses to infer diet of Antarctic toothfish caught ... compared to lipid profiles of fish and invertebrate species taken as by-catch in the fishery or collected ... from the stomachs of toothfish. Stable carbon and nitrogen isotope ratios were also determined to ... further identify feeding relationships between these species. The aim of this study was to establish the ... ). In addition, the stomach contents may represent only a snapshot of the dietary items con- sumed at a ... at 1 000 m. Survey area was in the south of SSRUs 881J and L (after Hanchet et al., 2012). 60 °S ... the six stations which could not be completed due to bad weather and time constraints at the end of ... ’ Society (AOCS, 1998). The extracted lipids were saponified at 100°C for 7 min with 1.5 ml of 0.5 N NaOH ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 21–36 : Author(s): Jo, H.-S., I. Yeon, C. Lim, S.M. Hanchet, D.-W. Lee and C.-K. Kang
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Chilean krill fishery: analysis of the 1991 season
Paper Title: Chilean krill fishery: analysis of the 1991 season Abstract / Description: This ... paper summarises Chilean catch data for 1991. Special emphasis is given to the analysis of haul-by-haul ... data and its use in studying small-scale spatial distribution of catches. The results show that krill ... fishing in Subarea 48.1 is particularly intense near CEMP sites. Other ways of using of haul-by-haul data ... catches (SC-CAMLR 1988, paragraph 2.26). At its 1989 meeting, WG-KriU agreed that analyses of haul-by ... the processing capability of the vessel and as a rule does not exceed 10 tonnes at the time. The ... -per-day was 108 tonnes, a maximum of 160 tonnes was obtained at the end of the season. A total of 419 ... WG-KRILL-9l/39 CHILEAN KRILL FISHERY: ANALYSIS OF THE ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 273–287 : Author(s): Marín, V.H., A. Mujica and P. Eberhard