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Träfflista för sökning "WFRF:(Dahl Ulrika) srt2:(2005-2009)"

Search: WFRF:(Dahl Ulrika) > (2005-2009)

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  • Dahl, Ulrika, 1970- (author)
  • Femme-inism.
  • 2006
  • In: Arena. - 1652-0556. ; :4, s. 12-16
  • Journal article (pop. science, debate, etc.)
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  • Dahl, Ulrika, et al. (author)
  • Food quality effects on copepod growth and development : Implications for bioassays in ecotoxicological testing
  • 2009
  • In: Ecotoxicology and Environmental Safety. - : Elsevier Inc. - 0147-6513 .- 1090-2414. ; 72:2, s. 351-357
  • Journal article (peer-reviewed)abstract
    • We evaluated effects of six algal species in 25 combinations on growth and reproduction of the harpacticoid copepod Nitocra spinipes. In the first lifecycle test, Rhodomonas salina, Phaeodactylum tricornutum, and Dunaliella tertiolecta were used. The results showed that R. salina was the best food, whereas P. tricornutum (0% development success) and D. tertiolecta (41.7% malformations) were poor food items. In the second lifecycle test, a mixture of R. salina, Tetraselmis suecica, and Thalassiosira weisflogii (selected from screening tests) was tested together with a mono-diet of R. salina. Also in this test, copepods fed R. salina performed better (i.e. had higher survival and reproductive success) compared with the other treatment. We conclude that R. salina is appropriate to use as food in toxicity testing with N. spinipes, whereas some of the algae commonly used as feed in ecotoxicological tests with other copepods had detrimental effects on the development, reproduction, and survival of N. spinipes.
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  • Dahl, Ulrika, 1976- (author)
  • Integrating biochemical and growth responses in ecotoxicological assays with copepods
  • 2008
  • Doctoral thesis (other academic/artistic)abstract
    • The understanding of effects of chemical exposure in nature is lagging behind. Predictions of harmful effects of chemicals on aquatic organisms rely mainly on ecotoxicity tests. To improve the understanding of the biological linkage between the cellular and organismal responses to a chemical in an ecotoxicological test, the major aim of this doctoral thesis was to investigate the usefulness of two biochemical endpoints, contents of RNA and ecdysteroids, by incorporating them with life-history traits of copepods (Crustacea). To do so, the two methods needed to be established at our laboratory. Both biochemical methods are more commonly used in basic biological research, but I here present its usefulness in ecotoxicological testing. It was found that individual RNA content as a biochemical endpoint was significantly altered in the brackish water harpacticoid copepod Nitocra spinipes when exposed to the pesticide Lindane (paper IV) and low concentrations (0.16
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  • Result 1-10 of 24
Type of publication
journal article (7)
book chapter (7)
conference paper (4)
artistic work (2)
book (2)
doctoral thesis (2)
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reports (1)
licentiate thesis (1)
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Type of content
other academic/artistic (13)
peer-reviewed (7)
pop. science, debate, etc. (4)
Author/Editor
Dahl, Ulrika, 1970- (13)
Dahl, Ulrika (8)
Hallgren, Hanna, 197 ... (3)
Breitholtz, Magnus (2)
Bengtsson, Bengt-Eri ... (2)
Breitholtz, (2)
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Volcano, Del LaGrace (2)
Gardeström, Johanna (1)
Dahl, Olav (1)
Laurell, Anna (1)
Dahl, Östen, Profess ... (1)
Matthiessen, Peter (1)
Solberg, Arne (1)
Cohn-Cedermark, Gabr ... (1)
Tandstad, Torgrim (1)
Stierner, Ulrika, 19 ... (1)
Gorokhova, Elena (1)
Apraiz, I. (1)
Cristobal, S. (1)
Hallgren, Hanna (1)
Cavallin-Ståhl, Eva (1)
Viberg, Åke, Profess ... (1)
Grahn, Mats (1)
Eklund, Britta (1)
Lind, Charlotta Rubi ... (1)
Dahl, Ulrika, 1976- (1)
Breitholtz, Magnus, ... (1)
Wijkström, Hans (1)
Klepp, Olbjörn (1)
Kotsalainen, Ola (1)
Maxson, Anders (1)
Elwing, Tina (1)
Bremnes, Roy M. (1)
Kvist Darnell, Ulrik ... (1)
Langberg, Carl (1)
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University
Södertörn University (11)
Stockholm University (7)
Uppsala University (4)
University of Gothenburg (3)
Linnaeus University (2)
Lund University (1)
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Karolinska Institutet (1)
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Language
English (17)
Swedish (6)
Spanish (1)
Research subject (UKÄ/SCB)
Social Sciences (11)
Humanities (5)
Natural sciences (3)
Medical and Health Sciences (1)

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