Výsledky vyhledávání - "Helgi Thorarensen"

Akademický článek

Effects of Early Thermal Environment on Growth, Age at Maturity, and Sexual Size Dimorphism in Arctic Charr

Autor: Tómas Árnason, Heiðdís Smáradóttir, Helgi Thorarensen, Agnar Steinarsson

Publikováno v: Journal of Marine Science and Engineering, Vol 10, Iss 2, p 167 (2022)

The effects of early thermal environment on growth, age at maturity, and sexual size dimorphism in Arctic charr (Salvelinus alpinus) are investigated. This study is a 654-day long rearing trial split into two sequential experimental phases termed EP1

Externí odkaz: https://doaj.org/article/0d227db4222b43dbab86400e70899438

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Nutrient Budget of Cage Fish Culture in a Lacustrine Environment: Towards Model Development for the Sustainable Development of Nile Tilapia (Oreochromis niloticus) Culture

Autor: Safina Musa, Christopher Mulanda Aura, Tumi Tomasson, Ólafur Sigurgeirsson, Helgi Thorarensen

Publikováno v: Emerging Sustainable Aquaculture Innovations in Africa ISBN: 9789811974502

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ad8ac11c1c7ff7792286749a36d89589
https://doi.org/10.1007/978-981-19-7451-9_15

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Impacts of Nile tilapia cage culture on water and bottom sediment quality: The ability of an eutrophic lake to absorb and dilute perturbations

Autor: Safina Musa, Christopher Mulanda Aura, Tumi Tomasson, Ólafur Sigurgeirsson, Helgi Thorarensen

Environmentally sustainable aquaculture depends on accurate understanding of the impacts of aquaculture-derived organic matter (AOM) and the ability of aquaculture systems to absorb and dilute perturbations. To this end, the present study assessed th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28a0178231443b1cff89c652fdbecb31
https://hdl.handle.net/10037/28439

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The effect of temperature on growth performance and aerobic metabolic scope in Arctic charr, Salvelinus alpinus (L.)

Autor: Christian Beuvard, Albert K. Imsland, Helgi Thorarensen

Publikováno v: Journal of Thermal Biology

In recent years, Arctic char populations in Iceland have declined and the objective of this experiment was to throw further light on these changes by examining the effect of temperature (5, 9, 13, 17, and 21 °C) on the survival, growth rate, metabol

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::623d6e5101dcdfc96924132be17f9db4
https://hdl.handle.net/10037/28442

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Limitations to growth: Social-ecological challenges to aquaculture development in five wealthy nations

Autor: Ann-Magnhild Solås, Helgi Thorarensen, Camilla Brattland, Nathan Young, Erik Olofsson, Ingrid Kvalvik, Kine Mari Karlsen, Knud Simonsen, Bjørn Hersoug, Celeste Digiovanni, Jahn Petter Johnsen

Publikováno v: Marine Policy. 104:216-224

Accepted manuscript version, licensed CC BY-NC-ND 4.0. Published version available at https://doi.org/10.1016/j.marpol.2019.02.022. Aquaculture is a major contributor to global food production, but has attracted considerable controversy. Disagreement

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5ac6a7dfdf2f3d86c81a75df9decf39
https://doi.org/10.1016/j.marpol.2019.02.022

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Growth and hepatic antioxidant enzyme activity of juvenile Arctic charr (Salvelinus alpinus) fed on diets supplemented with ethoxyquin, rosemary (Rosmarinus officinalis), or bladder wrack (Fucus vesiculosus)

Autor: Ólafur Sigurgeirsson, Patricia Hamaguchi, Godfrey Kawooya Kubiriza, Jón Árnarson, Sigurdur S. Snorrason, Tumi Tómasson, Helgi Thorarensen

Publikováno v: Aquaculture International. 27:287-301

The efficacy of the natural antioxidants rosemary (RM) and bladder wrack (BW), a seaweed, were compared to that of the synthetic ethoxyquin (EQ) in stabilizing lipid oxidation. The three antioxidants (RM, BW, and EQ) were added to 200 g samples of he

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::80294e6f2b4a3c142f9cc8757815c168
https://doi.org/10.1007/s10499-018-0324-5

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Effect of rearing temperature on flesh quality in Arctic charr (Salvelinus alpinus)

Autor: Aðalheiður Ólafsdóttir, Arnþór Gústavsson, Albert K. Imsland, Helgi Thorarensen, Snorri Gunnarsson, Jón Árnason

Publikováno v: Aquaculture Research

Currently, no information is available on the effect of progressively decreasing temperatures on the sensory quality of Arctic charr. The objective of this study was to investigate if and how different and progressively changing rearing temperatures

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72b2c9179ae2531466ff5c1aa3b5ae77
https://hdl.handle.net/11250/2989999

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Aerobic swimming in intensive finfish aquaculture: applications for production, mitigation and selection

Autor: Peter Vilhelm Skov, Gudrun De Boeck, Simon MacKenzie, Paolo Domenici, Arjan P. Palstra, Helgi Thorarensen, Marc Vandeputte, Josep V. Planas, Marie-Laure Bégout, David J. McKenzie, Sonia Rey, Daan Mes

Publikováno v: Reviews In Aquaculture (1753-5123) (Wiley), 2021-01, Vol. 13, N. 1, P. 138-155
Reviews in Aquaculture 13 (2021) 1
Reviews in Aquaculture
Reviews in Aquaculture, Wiley, 2020, 13 (1), pp.138-155. ⟨10.1111/raq.12467⟩
Reviews in Aquaculture, 13(1), 138-155
Reviews in Aquaculture, 2020, 13 (1), pp.138-155. ⟨10.1111/raq.12467⟩
McKenzie, D J, Palstra, A P, Planas, J, MacKenzie, S, Bégout, M-L, Thorarensen, H, Vandeputte, M, Mes, D, Rey, S, De Boeck, G, Domenici, P & Skov, P V 2021, ' Aerobic swimming in intensive finfish aquaculture: applications for production, mitigation and selection ', Reviews in Aquaculture
, vol. 13, no. 1, pp. 138-155 . https://doi.org/10.1111/raq.12467

International audience; We review knowledge on applications of sustained aerobic swimming as a tool to promote productivity and welfare of farmed fish species. There has been extensive interest in whether providing active species with a current to sw

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40a042f873091ead827d54db8ecbb224
https://archimer.ifremer.fr/doc/00636/74789/

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Impact of environmental factors on the growth and maturation of farmed Arctic charr

Autor: Helgi Thorarensen, Albert Kjartan Dagbjartarson Imsland, Snorri Gunnarsson

Publikováno v: Reviews in Aquaculture

Farming of Arctic charr mainly takes place in land‐based farms applying intensive rearing methods with relatively high production costs. Depending on local conditions at each site, it is possible to regulate important environmental factors to impro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6ea0192bcb34f40bdc238d68246397c
https://hdl.handle.net/11250/2726661

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