Species-specific physiological response of dinoflagellates to quantified small-scale turbulence

Species-specific physiological response of dinoflagellates to quantified small-scale turbulence

13 pages, 6 figures, 3 tables

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Main Authors: Berdalet, Elisa, Peters, Francesc, Koumandou, V. Lila, Roldán, Cristina, Guadayol, Òscar, Estrada, Marta
Format: artículo biblioteca
Language:English
Published: Phycological Society of America 2007-09-25
Subjects:Cellular DNA content, Dinoflagellates, Net growth rate, Orbital shaking, Small-scale turbulence, Swimming speed,
Online Access:http://hdl.handle.net/10261/15717
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spelling dig-icm-es-10261-157172020-11-12T10:29:08Z Species-specific physiological response of dinoflagellates to quantified small-scale turbulence Berdalet, Elisa Peters, Francesc Koumandou, V. Lila Roldán, Cristina Guadayol, Òscar Estrada, Marta Cellular DNA content Dinoflagellates Net growth rate Orbital shaking Small-scale turbulence Swimming speed 13 pages, 6 figures, 3 tables Turbulence has been shown to alter different aspects of the physiology of some dinoflagellates. The response appears to be species-specific and dependent on the experimental design and setup used to generate small-scale turbulence. We examined the variability of the response of three dinoflagellate species to the turbulence, following the same experimental design used by Berdalet (1992) on Akashiwo sanguinea (Hirasaka) Ge. Hansen et Moestrup (=Gymnodinium nelsonii G. W. Martin). In all experiments, turbulence was generated by an orbital shaker at 100 rpm, which corresponded on bulk average, to dissipation rates (ε, quantified using an acoustic Doppler velocimeter) of ≈2 cm2·s−3. Turbulence did not appreciably affect Gymnodinium sp., a small dinoflagellate. However, Alexandrium minutum Halim and Prorocentrum triestinum J. Schiller exhibited a reduced net growth rate (33% and 28%, respectively) when shaken during the exponential growth phase. Compared to the still cultures, the shaken treatments of A. minutum and P. triestinum increased the mean cell volume (up to 1.4- and 2.5-fold, respectively) and the mean DNA content (up to 1.8- and 5.3-fold, respectively). Cultures affected by turbulence recovered their normal cell properties when returned to still conditions. The swimming speed of the cells exposed to agitation was half that of the unshaken ones. Overall, the response of A. minutum and P. triestinum was similar, but with lower intensity, to that observed previously on A. sanguinea. We found no clear trends related to taxonomy or morphology This work has been supported by the Spanish funded projects TURFI (REN2002-01591/MAR), VARITEC (CTM2004-04442-C02), and TURECOTOX (CTM2006-13884-C02-00/MAR), and by the EU project NTAP (EVK3-CT-2000-00022). F. Peters was "Ramón y Cajal" scientist from the Spanish Ministry of Science and Education. Ò. Guadayol had a CSIC I3P doctoral contract. This paper is ELOISE contribution No. 527/40 Peer reviewed 2009-08-05T12:16:56Z 2009-08-05T12:16:56Z 2007-09-25 artículo http://purl.org/coar/resource_type/c_6501 Journal of Phycology 43(5): 965-977 (2007) 0022-3646 http://hdl.handle.net/10261/15717 10.1111/j.1529-8817.2007.00392.x en https://doi.org/10.1111/j.1529-8817.2007.00392.x none 180710 bytes application/pdf Phycological Society of America Blackwell Publishing
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
language English
topic Cellular DNA content
Dinoflagellates
Net growth rate
Orbital shaking
Small-scale turbulence
Swimming speed
Cellular DNA content
Dinoflagellates
Net growth rate
Orbital shaking
Small-scale turbulence
Swimming speed
spellingShingle Cellular DNA content
Dinoflagellates
Net growth rate
Orbital shaking
Small-scale turbulence
Swimming speed
Cellular DNA content
Dinoflagellates
Net growth rate
Orbital shaking
Small-scale turbulence
Swimming speed
Berdalet, Elisa
Peters, Francesc
Koumandou, V. Lila
Roldán, Cristina
Guadayol, Òscar
Estrada, Marta
Species-specific physiological response of dinoflagellates to quantified small-scale turbulence
description 13 pages, 6 figures, 3 tables
format artículo
topic_facet Cellular DNA content
Dinoflagellates
Net growth rate
Orbital shaking
Small-scale turbulence
Swimming speed
author Berdalet, Elisa
Peters, Francesc
Koumandou, V. Lila
Roldán, Cristina
Guadayol, Òscar
Estrada, Marta
author_facet Berdalet, Elisa
Peters, Francesc
Koumandou, V. Lila
Roldán, Cristina
Guadayol, Òscar
Estrada, Marta
author_sort Berdalet, Elisa
title Species-specific physiological response of dinoflagellates to quantified small-scale turbulence
title_short Species-specific physiological response of dinoflagellates to quantified small-scale turbulence
title_full Species-specific physiological response of dinoflagellates to quantified small-scale turbulence
title_fullStr Species-specific physiological response of dinoflagellates to quantified small-scale turbulence
title_full_unstemmed Species-specific physiological response of dinoflagellates to quantified small-scale turbulence
title_sort species-specific physiological response of dinoflagellates to quantified small-scale turbulence
publisher Phycological Society of America
publishDate 2007-09-25
url http://hdl.handle.net/10261/15717
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