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Factors affecting the incidental mortality of seabirds in the Dissostichus eleginoides fishery in the southwest Atlantic (Subarea 48.3, 1995 season)
from the fine-scale reports submitted by each vessel to its national fishing authority and supplemented ... with the information collected by international scientific observers from each vessel. It was thus ... in vessels' analyses of catch of birds per unit effort (BPUE), as well as of the haul-by-haul ... 1995 season. The data was obtained from the fine-scale reports submitted by each vessel to its ... national fishing authority and supplemented with the information collected by international scientific ... effort (BPUE), as well as of the haul-by-haul data. Dans re document, les auteurs presentent une ... report examines the information recorded in CCAMLR haul-by-haul data reporting forms (C2 V5) submitted ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 79–91 : Автор(ы): Moreno, C.A., P.S. Rubilar, E. Marschoff and L. Benzaquen
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Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey
approach is extended further so as to incorporate most of the amendments specified by the Third and Fourth ... . Three possible fishing seasons are considered. The model extensions requested by the Third Meeting make ... fishing mortality, as specified by the Fourth Meeting, results in marked reductions in the probabilities ... incorporate most of the amendments specified by the Third and Fourth Meetings of the Working Group on Krill ... considered. The model extensions requested by the Third Meeting make little difference to the results of ... imposition of an upper bound of 1.5 on the effective annual fishing mortality, as specified by the Fourth ... biomass drops below a fraction requested by the Fourth Meeting of WG-Krill D,,,, = 0.2 of its median ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 81–106 : Автор(ы): Butterworth, D.S., G.R. Gluckman, R.B. Thomson, S. Chalis, K. Hiramatsu and D.J. Agnew
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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 : Автор(ы): 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 : Автор(ы): Barrera-Oro, E. and E. Marschoff
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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 : Автор(ы): 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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A preliminary investigation of the possible effects of rhizocephalan parasitism on the management of the crab fishery around South Georgia
levels of infection by a rhizocephalan barnacle have been found in the population of the crab Paralomis ... spinosissima, which has been harvested by a new fishery around South Georgia (Subarea 48.3) since 1992. One of ... possible implications of parasitism for management are investigated by considering a population model that ... Relatively high levels of infection by a rhizocephalan barnacle have been found in the population of the ... crab Paralomis spinosissima, which has been harvested by a new fishery around South Georgia (Subarea ... stock management. The possible implications of parasitism for management are investigated by ... INTRODUCTION The first fishing trip targeting crabs in Subarea 48.3, by the FV Pro Surveyor, presented in ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 175–192 : Автор(ы): Basson, M
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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 : Автор(ы): Gerasimova, O.V.
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Chilean krill fishery: analysis of the 1991 season
paper summarises Chilean catch data for 1991. Special emphasis is given to the analysis of haul-by-haul ... fishing in Subarea 48.1 is particularly intense near CEMP sites. Other ways of using of haul-by-haul data ... -by-haul data and its use in studying small-scale spatial distribution of catches. The results show ... haul-by-haul data are suggested. Resume Le present document recapitule les donnees de capture ... objective of CCAMLR, by definition, is the conservation of the Antarctic marine living resources. KriU is ... by far the most abundant resource. The analysis of the kriU fishery is the major task of the Working ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 273–287 : Автор(ы): Marín, V.H., A. Mujica and P. Eberhard
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Estimates of circumpolar abundance of Antarctic krill based on recent acoustic density measurements
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 ... explained by a number of factors such as: an underestimation of the range or the acoustic biomass estimates ... krill by predators. Even if these low krill biomass estimates are correct, regional and total ... effectively underestimated the krill biomass by a factor of three, so the new survey of the South Atlantic in ... where krill are to be found and where the major concentrations lie, and this has been confirmed by ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 87–99 : Автор(ы): Nicol, S., A.J. Constable and T. Pauly
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Depth distribution and spawning pattern of Dissostichus eleginoides at South Georgia
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 ... toothfish (Dissostichus eleginoides) were examined using data from approximately 7000 fish sampled by ... males move down slope and 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 ... third) cruises. The choice of vessels was also influenced by the need to provide sufficient overlap ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 19–36 : Автор(ы): Agnew, D.J., L. Heaps, C. Jones, A. Watson, K. Berkieta and J. Pearce
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