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Thematische Bibliographien / Euphausiacia / Dissertationen

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Dissertationen zum Thema „Euphausiacia“

Autor: Grafiati

Veröffentlicht am 4. Juni 2021

Zuletzt aktualisiert am 29. Juli 2025

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1

Gurney, Leigh Josephine. "Feeding biology of three euphausiid species in the vicinity of the Prince Edward Archipelago (Southern Ocean)." Thesis, Rhodes University, 2000. http://hdl.handle.net/10962/d1005381.

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The feeding biology of three euphausiid species, Euphausia vallentini (adults and juveniles), E. longirostris and Nematoscelis megalops was investigated during austral autumn (April/May) of 1998 and 1999, in the vicinity of the Prince Edward Islands (Southern Ocean). Data on the abundance and biomass of these species, estimated from bongo net tows, were investigated. Trophic position was assessed using gut contents and stable nitrogen isotope measurements. Feeding rate and daily carbon ration were estimated using the gut fluorescence and the gut fullness techniques. Vertical migrations into th

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2

Bernard, Anthony Thomas Firth. "Euphausiid population structure and grazing in the Indian sector of the Antarctic Polar Frontal Zone, during austral autumn." Thesis, Rhodes University, 2005. http://hdl.handle.net/10962/d1015960.

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The trophodynamics of the numerically dominant euphausiid species within a region of high mesoscale oceanographic variability in the southwest Indian sector of the Antarctic Polar Frontal Zone (PFZ) were investigated during the austral autumns April/May) of 2004 and 2005. During the 2004 survey, sub-surface (200 m) temperature profiles indicated that an intense frontal feature, formed by the convergence of the Sub-Antarctic Front (SAF) and the Antarctic Polar Front (APF) bisected the survey area into two distinct zones, the Sub- Antarctic Zone (SAZ) and the Antarctic Zone (AAZ). Total integrat

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3

Harkins, Gordon W. "Studies on the population genetics of Euphausiids: a comparison of patterns in plagic taxa displaying different distributions and life-histories." Thesis, University of the Western Cape, 2006. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_6509_1184928511.

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<p>The systematic and population genetic relationships were characterised for three ecologically related euphausiid species: Euphausia lucens, E. recurva and E. vallentini. These species have different geographical distributions and life histories. All three species have a circumpolar distribution in the Southern Hemisphere while E. recurva is also distributed in the North Pacific. DNA sequence variation was determined for three regions of mitochondrial DNA and a single nuclear gene. It was conclusively demonstrated that both E. lucens and E. vallentini represent valid taxonomic species with f

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4

Pillar, Stanley C. "Distribution and population dynamics of Euphausia lucens (Euphausiacea) in the southern Benguela current." Doctoral thesis, University of Cape Town, 1987. http://hdl.handle.net/11427/8406.

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Bibliography: leaves 182-196.<br>The thesis first reviews the research on zooplankton ecology in the Benguela system and then evaluates the contribution of euphausiids to the zooplankton biomass of the southern Benguela region. The study further investigates the population dynamics and maintenance of the dominant euphausiid, Euphausia lucens, principally in the St Helena Bay region because of its importance as a recruitment area for the pelagic fishery.

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5

Menezes, Barbara Santos. "Distribuição de euphausiacea (Crustacea) (krill) no Arquipélago de São Pedro e São Paulo." Florianópolis, SC, 2012. http://repositorio.ufsc.br/xmlui/handle/123456789/96311.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Ecologia, Florianópolis, 2012<br>Made available in DSpace on 2012-10-26T10:48:09Z (GMT). No. of bitstreams: 1 302488.pdf: 4210895 bytes, checksum: 728b1bedc7603ae02f4550f94e42d36b (MD5)<br>Eufausiáceos podem ter sua distribuição afetada por diversos fatores, como a temperatura, massas d'água e a presença de uma topografia abrupta, como quebras de plataformas continentais e cordilheiras submarinas. O Arquipélago de São Pedro e São Paulo (ASPSP) (0°55'00"N e 29°20'45"W) co

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LIMA, Cynthia Dayanne Mello de. "Distribuição vertical de Euphausiacea ao largo do arquipélago de São Pedro e São Paulo." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/18330.

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Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2017-02-16T13:22:40Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertaçãofinal_CynthiaLima.pdf: 1671444 bytes, checksum: a618adc7ce746bd89739101831df619e (MD5)<br>Made available in DSpace on 2017-02-16T13:22:40Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertaçãofinal_CynthiaLima.pdf: 1671444 bytes, checksum: a618adc7ce746bd89739101831df619e (MD5) Previous issue date: 2016-06-29<br>CNPq<br>Este estudo

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7

Albessard, Eric. "Etude de la structure et du métabolisme lipidique de l'euphausiacé Meganyctiphanes norvegica : influence d'un gradient tropho-climatique." Lyon 1, 2003. http://www.theses.fr/2003LYO10045.

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Le but de cette étude est d'évaluer l'impact d'un gradient climatique et trophique sur la structure et le métabolisme des lipides de l'euphausiacé Meganyctiphanes norvegica entre trois biotopes très contrastés: la Mer Ligure, La Mer de Clyde et le Kattegat afin de préciser les mécanismes adaptatifs de l'espèce. L'étude de la reproduction et des facteurs environnementaux (conditions trophiques, température et salinité) agissant sur les lipides, composante énergétique essentielle, rassemble les variables majeures déterminant le succès de l'espèce. La reproduction de M. Norvegica fait largement a

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8

Saunders, Ryan Alexander. "Ecological investigations of euphausiids at high latitudes." Thesis, St Andrews, 2007. http://hdl.handle.net/10023/347.

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9

DEMONER, L. E. "Distribuição e Diversidade de Euphausiacea (crustacea) na Bacia do Espírito Santo e na Bacia de Campos (brasil)." Universidade Federal do Espírito Santo, 2017. http://repositorio.ufes.br/handle/10/9125.

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Made available in DSpace on 2018-08-01T23:42:36Z (GMT). No. of bitstreams: 1 tese_10178_Dissertacao Lilian Demoner.pdf: 1566710 bytes, checksum: 6b0deea80061b242ada5a487d9fa0f25 (MD5) Previous issue date: 2017-03-02<br>Os eufausiáceos representam uma parcela importante do zooplâncton, atuando no controle top-down e bottom-up nas redes alimentares marinhas e desempenhando um importante papel no transporte de carbono para o fundo oceânico. Porém, ainda pouco se sabe sobre a ocorrência e distribuição dos eufausiáceos nas águas da região Sudeste do Brasil, principalmente em águas profundas. Este

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10

Sterley, Jessica Anne. "Trophodynamics of carnivorous zooplankton in the region of the subtropical convergence within the Indian sector of the Southern Ocean, with particular emphasis on chaetognaths." Thesis, Rhodes University, 2009. http://hdl.handle.net/10962/d1005478.

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Trophodynamics of carnivorous zooplankton in the region of the Subtropical Convergence (STC) in the Indian sector of the Southern Ocean was investigated during austral autumn (April 2007) as part of the first cruise of the Southern Ocean Ecosystem Variability Study. Within the region of the study, the STC was well defined by the 14°C surface isotherm which separated the Agulhas Return Current and Subtropical water in the north from Sub-Antarctic waters to the south. Total average abundance (3.89 ± 5.46ind 100m-3) and biomass (0.14 ± 0.27mg Dwt 100m-3) of carnivorous zooplankton south of the fr

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11

Velsch, Jean Philippe. "Dynamique de population et migrations verticales journalières de Meganyctiphanes Norvegica (Crustaces : Euphausiaces) en Méditerranée Nord-Occidentale." Aix-Marseille 2, 1997. http://www.theses.fr/1997AIX22118.

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La dynamique de population et les migrations verticales journalieres de meganyctiphanes norvegica (crustaces : euphausiaces) ont ete etudiees en mediterranee nord-occidentale. Considerant la demographie de la population du golfe du lion, nos observations indiquent que les individus recrutes au printemps effectuent la quasi totalite de leur croissance en moins d'un an, leur taille moyenne etant deja proche d'une valeur asymptotique en hiver. Trente et dix pour cent des individus atteignent respectivement l'age d'un et deux ans. Une simulation de la cinetique des structures de taille de la popul

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12

Fregin, Torsten [Verfasser], and Friedrich [Akademischer Betreuer] Buchholz. "Untersuchungen zu Form und Funktionder Leuchtorgane des Nordischen Krill Meganyctiphanes norvegica (M. SARS, 1857)(Crustacea: Euphausiacea) / Torsten Fregin. Betreuer: Friedrich Buchholz." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2016. http://d-nb.info/1097561763/34.

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13

Fine, Charles Douglas. "The Vertical and Horizontal Distribution of Deep-Sea Crustaceans of the Order Euphausiacea (Malacostraca: Eucarida) from the northern Gulf of Mexico with notes on reproductive seasonality." NSUWorks, 2016. http://nsuworks.nova.edu/occ_stuetd/432.

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The vertical and horizontal distributions of Euphausiacea in the northern Gulf of Mexico, including the location of the Deepwater Horizon oil spill, were analyzed from 340 trawl samples collected between April-June, 2011. This study is the first comprehensive survey of euphausiid distributions from depths deeper than 1000 m in the Gulf of Mexico and included stratified sampling from five discrete depth ranges (0-200 m, 200-600 m, 600-1000 m, 1000-1200 m, and 1200-1500 m). In addition, this study encompasses the region heavily impacted by the Deepwater Horizon oil spill. Data presented here c

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14

O'Brien, DP. "Gregarious behaviour in crustacean micronekton (Euphausiacea, Mysidacea)." Thesis, 1988. https://eprints.utas.edu.au/21071/1/whole_O%27BrienDominicPatrick1988_thesis.pdf.

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Certain species of pelagic euphausiids and hyperbenthic mysids (Crustacea) show highly integrated social behaviour comparable in many aspects to schooling in higher marine organisms such as fish, squid and mammals. The ethology, form, maintenance, occurrence and population structure of aggregations of three species of euphausiid and six species of mysid are described. An attempt is made to define the adaptive advantages and selective pressures determining the characteristics of social behaviour of marine crustaceans as a whole, between orders, and between species. The general internal structu

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15

Jarman, Simon Neil. "DNA evolution in krill : molecular phylogenetics and population genetics of Euphausiacea (Crustacea: Malacostraca) and their close relatives." Thesis, 2001. https://eprints.utas.edu.au/20499/1/whole_JarmanSimonNeil2001_thesis.pdf.

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The evolutionary history of krill (Euphausiacea: Crustacea) was studied through information held in their DNA. The earliest events in the evolution of this group were investigated by phylogenetic analysis of slowly evolving nuclear DNA sequences of krill and their near relatives. These analyses established the sister taxon of krill to be the Mysida. Molecular dating techniques suggested that krill diverged from the Mysida in the upper Carboniferous, two lineages of krill survived the end Cretaceous extinctions, and the extant genera of Euphausiidae radiated during the early Palaeogene. M

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16

Sterley, Jessica Anne. "Trophodynamics of carnivorous zooplankton in the region of the subtropical convergence within the Indian sector of the Southern Ocean, with particular emphasis on chaetognaths /." 2008. http://eprints.ru.ac.za/1624/.

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