Search results
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Discrimination of Macrourus whitsoni and M. caml (Gadiformes, Macrouridae) using otolith morphometrics
otolith morphometrics Abstract / Description: That the predominant by-catch of grenadier by the toothfish ... , was recognised in 2010 with the identification of a new species, M. caml. Grenadier are the main by ... Grenadiers (Family Macrouridae) are taken as by-catch in many of the toothfish fisheries in the Southern ... main by-catch in the fishery for Antarc- tic toothfish (Dissostichus mawsoni) in the Ross Sea region ... (CCAMLR Subareas 88.1 and 88.2) (Stevenson et al., 2014). A by-catch of 10 tonnes of grenadiers was ... ; Pinkerton and Bradford-Grieve, 2014; Mormede et al., 2014). Grenadier caught as by-catch and found in ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 15–28 : Author(s): Pinkerton, M.H., C. Ó Maolagáin, J. Forman and P. Marriott
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A declining trend in the abundance of Notothenia rossii marmorata and Notothenia gibberifrons observed in fjords in two sites in the South Shetland Islands
two sites in the South Shetland Islands (Subarea 48.1), is analyzed by a nested ANOVA and demonstrated ... sampling by this method did not utilize a consistent amount of effort between years, the analysis made use ... of standardized catch data by expressing the catches of N. rossii and N. gibberifrons in proportion ... Shetland Islands (Subarea 48.1), is analyzed by a nested ANOVA and demonstrated as significant. The ... Notothenia neglecta, a species with similar ecological habits in the fjords. Since sampling by this method ... catch data by expressing the catches of N. rossii and N. gibberifrons in proportion to the catches of N ... implementation by the Instituto Antartico Argentino of routine sampling of fish a similar situation has been ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 263–274 : Author(s): Barrera-Oro, E. and E. Marschoff
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Estimates of circumpolar abundance of Antarctic krill based on recent acoustic density measurements
K p H n a no aKYCTHVeCKHM C5eMKaM H PeTPOCneKTMBHbIX AaHHbIX no BCeMy a p e a J r y O ~ M T ~ H M I I KPHJIR ... estimates and others can be explained by a number of factors such as: an underestimation of the range or the ... of the demand for krill by predators. Even if these low krill biomass estimates are correct, regional ... target strength which has effectively underestimated the krill biomass by a factor of three, so the new ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 87–99 : Author(s): Nicol, S., A.J. Constable and T. Pauly
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Depth distribution and spawning pattern of Dissostichus eleginoides at South Georgia
o 6 o s ~ a u e ~ o Havano (nepeoe vucno) KaxAoro Mecxqa; ocb y - HapacTalowax my6aea (M); CpeAHxx Anma noMevewa B CM ... eleginoides) were examined using data from approximately 7000 fish sampled by observers from the 1998 fishery ... females move up slope to meet at breeding areas defined by slope position (between 800 and 1200 m depth ... ) and not by geographical position. Pre-spawning animals appear to be distributed all around the South ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 19–36 : Author(s): Agnew, D.J., L. Heaps, C. Jones, A. Watson, K. Berkieta and J. Pearce
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Diet study of Antarctic toothfish caught in the east Antarctic based on stomach content, fatty acid and stable isotope analyses
isotope ratios were determined and compared with those of species caught as by-catch and collected from ... Channichthyidae caught as by-catch and several species collected from toothfish stomachs, including unidentified ... and a regional comparison of their dietary composition by the collection and subsequent biomarker ... isotope ratios were determined and compared with those of species caught as by-catch and collected from ... other Antarctic fish as revealed by chemical tracers, and thus large decreases or increases in its ... toothfish can weaken lower trophic levels by removals of fish such as grenadiers and skates as by-catch ... its diet (DeNiro and Epstein, 1978; Fry and Sherr, 1984), whereas δ15N is enriched by 2–4‰ with each ...
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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Surface water circulation in krill fishing areas near the South Shetland Islands
. ~ ~ U I T P I I X O B ~ H H ~ I M I ~ YqaCTKaMLl IIOKa3aH LIIeJIb@ (my6uaa 200 M IlnA MeHbLIIe). ~ Y H K T M P H ~ I M U JIHHHIIMN IIOKa3aHa ... Abstract / Description: This paper describes tracks followed by six surface drifting buoys that were ... measurements demonstrated that the oceanographic regime in these waters is not well described by geostrophic ... distribution of krill catches taken in the area by Japanese vessels during the period from 1981 to 1994. It is ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 125–136 : Author(s): Ichii, T. and M. Naganobu
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Feeding and food intake of Electrona carlsbergi (Tåning, 1932) Myctophidae
by various methods was from 3.7 to 5.6% of fish body weight. The amount of food consumed by E ... carlsbergi feeds mainly on copepods. Daily food intake estimated by various methods was from 3.7 to 5.6% of ... fish body weight. The amount of food consumed by E. carlsbergi during the year in the waters to the ... data give a fairly complete picture of species composition of food consumed by E. carlsbergi ... fullness the derived value was divided by the sum of weights of the examined fish. Altogether 914 fish ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 411–416 : Author(s): Gerasimova, O.V.
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Analysis and modelling of the Soviet Southern Ocean krill fleet, II: Estimating the number of concentrations and analytical justification for search data
Odyssey and concentrations 4, 8 and 1, 14 for the data collected by the RV Mys Tihiy. The times between ... for the entire fishing period of14 to 30 days.) 290 9. A MORE DETAILED ANALYSIS OF THE DATA FROM RV MYS ... TlHIY Figure 16 shows a histogram of the radii of concentrations encountered by RV Mys Tihiy ... Number of Records 1. Professor Derugin 18.02.82 - 05.05.82 61.2°E - 112.4°E 118 2. Oydssey 3. Mys ... paper, I show how data that are routinely collected by survey vessels can be used to estimate the number ... . Sample computations are performed, using data collected by Soviet research/survey vessels in the early ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 283–322 : Author(s): Mangel, M.
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Editorial
derived from acoustic data, details of the krill and fish by-catch taken in the krill fishery and a novel ... -based decision-making by CCAMLR. One of the most striking changes over the past 30 years is the increase ... undoubtedly driven by the need to publish (or be damned), however, quite often authors refer to their findings ... being ‘important to CCAMLR’ yet those papers do not get submitted for consideration by CCAMLR. I would ... acoustic data, details of the krill and fish by-catch taken in the krill fishery and a novel paper looking ... decision-making by CCAMLR. One of the most striking changes over the past 30 years is the increase in the ... driven by the need to publish (or be damned), however, quite often authors refer to their findings being ... ‘important to CCAMLR’ yet those papers do not get submitted for consideration by CCAMLR. I would urge all ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 167 : Author(s): Editors
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Distribution, morphology and ecology of Macrourus whitsoni and M. caml (Gadiformes, Macrouridae) in the Ross Sea region
varied. A fragmented prey count was based on the number of eyes, heads, mouthparts, tails, otoliths ... teeth in the lower jaw allowed the two species to be distinguished both in the laboratory and by ... scientific observers at sea. The species were sympatric by depth (900–1 900 m) and by spatial area within ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 37–61 : Author(s): Pinkerton, M.H., P. McMillan, J. Forman, P. Marriott, P. Horn, S. Bury and J. Brown