Response of the Ciliates <i>Fabrea salina</i> and <i>Condylostoma</i> sp. to Different Salinities and Microalgal Feeds

In the quest of finding local strains of marine ciliates that can be easily cultured under a broad range of salinity and fed with microalgae, <i>Fabrea salina</i> Henneguy, 1890 and <i>Condylostoma</i> sp. Bory de St. Vincent, 1826 were cultured for 22 days in small volumes a...

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Main Authors: George N. Hotos, Ioanna Touloupi
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Ecologies
Subjects:
Online Access:https://www.mdpi.com/2673-4133/3/2/17
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author George N. Hotos
Ioanna Touloupi
author_facet George N. Hotos
Ioanna Touloupi
author_sort George N. Hotos
collection DOAJ
description In the quest of finding local strains of marine ciliates that can be easily cultured under a broad range of salinity and fed with microalgae, <i>Fabrea salina</i> Henneguy, 1890 and <i>Condylostoma</i> sp. Bory de St. Vincent, 1826 were cultured for 22 days in small volumes at a temperature of 16–18 °C and fed with flagellated microalgae. <i>F. salina</i> presented a clear preference for the salinity of 40 ppt and <i>Condylostoma</i>. sp. for 20 ppt. <i>Rhodomonas salina</i> Hill and Wetherbee, 1989 were the most efficient feeds, resulting in 30 ind./mL in <i>F. salina</i> and 73 ind./mL in <i>Condylostoma</i>. <i>Dunaliella salina</i> Teodoresco, 1905 and <i>Nephroselmis</i> sp. F. Stein, 1878 also resulted in considerable ciliate densities while <i>Isochrysis galbana</i> Parke, 1949 came last with the highest density in <i>Condylostoma</i>. The strain of <i>Tetraselmis</i> sp. F. Stein, 1878 (var. red pappas) which is transformed in immobilized palmelloid cells and the dinoflagellate <i>Amphidinium carterae</i> Hulburt, 1957, which is suspected of toxin production, were inappropriate for both ciliates. These ciliates can be easily cultured and can serve as useful organisms in bioassays and probably as live food in marine fish hatcheries.
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spelling doaj.art-4f8a89d9f17b4bfc8d7325fbff92eb6c2023-11-23T16:21:53ZengMDPI AGEcologies2673-41332022-06-013222523410.3390/ecologies3020017Response of the Ciliates <i>Fabrea salina</i> and <i>Condylostoma</i> sp. to Different Salinities and Microalgal FeedsGeorge N. Hotos0Ioanna Touloupi1Plankton Culture Laboratory, Department of Animal Production, Fisheries and Aquaculture, University of Patras, 30200 Messolonghi, GreecePlankton Culture Laboratory, Department of Animal Production, Fisheries and Aquaculture, University of Patras, 30200 Messolonghi, GreeceIn the quest of finding local strains of marine ciliates that can be easily cultured under a broad range of salinity and fed with microalgae, <i>Fabrea salina</i> Henneguy, 1890 and <i>Condylostoma</i> sp. Bory de St. Vincent, 1826 were cultured for 22 days in small volumes at a temperature of 16–18 °C and fed with flagellated microalgae. <i>F. salina</i> presented a clear preference for the salinity of 40 ppt and <i>Condylostoma</i>. sp. for 20 ppt. <i>Rhodomonas salina</i> Hill and Wetherbee, 1989 were the most efficient feeds, resulting in 30 ind./mL in <i>F. salina</i> and 73 ind./mL in <i>Condylostoma</i>. <i>Dunaliella salina</i> Teodoresco, 1905 and <i>Nephroselmis</i> sp. F. Stein, 1878 also resulted in considerable ciliate densities while <i>Isochrysis galbana</i> Parke, 1949 came last with the highest density in <i>Condylostoma</i>. The strain of <i>Tetraselmis</i> sp. F. Stein, 1878 (var. red pappas) which is transformed in immobilized palmelloid cells and the dinoflagellate <i>Amphidinium carterae</i> Hulburt, 1957, which is suspected of toxin production, were inappropriate for both ciliates. These ciliates can be easily cultured and can serve as useful organisms in bioassays and probably as live food in marine fish hatcheries.https://www.mdpi.com/2673-4133/3/2/17<i>Fabrea salina</i><i>Condylostoma</i>growthsalinity<i>Tetraselmis</i><i>Dunaliella</i>
spellingShingle George N. Hotos
Ioanna Touloupi
Response of the Ciliates <i>Fabrea salina</i> and <i>Condylostoma</i> sp. to Different Salinities and Microalgal Feeds
Ecologies
<i>Fabrea salina</i>
<i>Condylostoma</i>
growth
salinity
<i>Tetraselmis</i>
<i>Dunaliella</i>
title Response of the Ciliates <i>Fabrea salina</i> and <i>Condylostoma</i> sp. to Different Salinities and Microalgal Feeds
title_full Response of the Ciliates <i>Fabrea salina</i> and <i>Condylostoma</i> sp. to Different Salinities and Microalgal Feeds
title_fullStr Response of the Ciliates <i>Fabrea salina</i> and <i>Condylostoma</i> sp. to Different Salinities and Microalgal Feeds
title_full_unstemmed Response of the Ciliates <i>Fabrea salina</i> and <i>Condylostoma</i> sp. to Different Salinities and Microalgal Feeds
title_short Response of the Ciliates <i>Fabrea salina</i> and <i>Condylostoma</i> sp. to Different Salinities and Microalgal Feeds
title_sort response of the ciliates i fabrea salina i and i condylostoma i sp to different salinities and microalgal feeds
topic <i>Fabrea salina</i>
<i>Condylostoma</i>
growth
salinity
<i>Tetraselmis</i>
<i>Dunaliella</i>
url https://www.mdpi.com/2673-4133/3/2/17
work_keys_str_mv AT georgenhotos responseoftheciliatesifabreasalinaiandicondylostomaisptodifferentsalinitiesandmicroalgalfeeds
AT ioannatouloupi responseoftheciliatesifabreasalinaiandicondylostomaisptodifferentsalinitiesandmicroalgalfeeds