Impact of temperature on larval development and evolution of physiological indices in Crassostrea gigas
The effect of four temperatures, ranging between 17 degrees C and 32 degrees C, was studied on development and lipid reserve management of Crassostrea gigas larvae. No effect of temperature was found on larval mortality, as high survival (>90%) was recorded before competence at all temperatures s...
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ftarchimer:oai:archimer.ifremer.fr:13046 2023-05-15T15:57:50+02:00 Impact of temperature on larval development and evolution of physiological indices in Crassostrea gigas Ben Kheder, Rym Moal, Jeanne Robert, Rene 2010-11 application/pdf https://archimer.ifremer.fr/doc/00019/13046/10146.pdf https://doi.org/10.1016/j.aquaculture.2010.09.005 https://archimer.ifremer.fr/doc/00019/13046/ eng eng Elsevier Science Bv https://archimer.ifremer.fr/doc/00019/13046/10146.pdf doi:10.1016/j.aquaculture.2010.09.005 https://archimer.ifremer.fr/doc/00019/13046/ 2010 Elsevier B.V. All rights reserved. info:eu-repo/semantics/openAccess restricted use Aquaculture (0044-8486) (Elsevier Science Bv), 2010-11 , Vol. 309 , N. 1-4 , P. 286-289 Crassostrea gigas Larvae Growth Metamorphosis Temperature Lipids Physiological indices text Publication info:eu-repo/semantics/article 2010 ftarchimer https://doi.org/10.1016/j.aquaculture.2010.09.005 2021-09-23T20:18:56Z The effect of four temperatures, ranging between 17 degrees C and 32 degrees C, was studied on development and lipid reserve management of Crassostrea gigas larvae. No effect of temperature was found on larval mortality, as high survival (>90%) was recorded before competence at all temperatures studied. Temperature did, nonetheless, have a strong effect on growth and settlement success. At low temperature (17 degrees C), larvae competent to metamorphose were only observed from day 23 and only a low percentage finally achieved metamorphosis (12%). The opposite was seen at temperatures >= 27 degrees C: larval competence appeared at day 18 and led to high rates of metamorphosis (60-90%). This difference at settlement seemed to be linked to larval growth, which showed rates of 7 mu m d(-1) at 17 degrees C vs. 10.5 mu m d(-1) at 32 degrees C. In addition, a higher accumulation of lipid reserves at low temperature was revealed by both biochemical (TAG/ST) and colorimetric (OLI) methods. In fact, the lower the temperature, the higher the mean TAG/ST levels recorded (6-9 at 17 degrees C vs. 2-4 at 32 degrees C). In the same way, larvae reared at 17 degrees C had a percentage lipid surface coverage between 19 and 29% (at sizes between 80 and 230 mu m), while lipids covered only 5 to 16% of the surface of larvae reared at 32 degrees C (at size <250 mu m). Neither of these physiological indices can, however, provide a relevant indication of the larval performance induced by different rearing temperatures. (C) 2010 Elsevier B.V. All rights reserved. Article in Journal/Newspaper Crassostrea gigas Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Aquaculture 309 1-4 286 289 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Crassostrea gigas Larvae Growth Metamorphosis Temperature Lipids Physiological indices |
spellingShingle |
Crassostrea gigas Larvae Growth Metamorphosis Temperature Lipids Physiological indices Ben Kheder, Rym Moal, Jeanne Robert, Rene Impact of temperature on larval development and evolution of physiological indices in Crassostrea gigas |
topic_facet |
Crassostrea gigas Larvae Growth Metamorphosis Temperature Lipids Physiological indices |
description |
The effect of four temperatures, ranging between 17 degrees C and 32 degrees C, was studied on development and lipid reserve management of Crassostrea gigas larvae. No effect of temperature was found on larval mortality, as high survival (>90%) was recorded before competence at all temperatures studied. Temperature did, nonetheless, have a strong effect on growth and settlement success. At low temperature (17 degrees C), larvae competent to metamorphose were only observed from day 23 and only a low percentage finally achieved metamorphosis (12%). The opposite was seen at temperatures >= 27 degrees C: larval competence appeared at day 18 and led to high rates of metamorphosis (60-90%). This difference at settlement seemed to be linked to larval growth, which showed rates of 7 mu m d(-1) at 17 degrees C vs. 10.5 mu m d(-1) at 32 degrees C. In addition, a higher accumulation of lipid reserves at low temperature was revealed by both biochemical (TAG/ST) and colorimetric (OLI) methods. In fact, the lower the temperature, the higher the mean TAG/ST levels recorded (6-9 at 17 degrees C vs. 2-4 at 32 degrees C). In the same way, larvae reared at 17 degrees C had a percentage lipid surface coverage between 19 and 29% (at sizes between 80 and 230 mu m), while lipids covered only 5 to 16% of the surface of larvae reared at 32 degrees C (at size <250 mu m). Neither of these physiological indices can, however, provide a relevant indication of the larval performance induced by different rearing temperatures. (C) 2010 Elsevier B.V. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Ben Kheder, Rym Moal, Jeanne Robert, Rene |
author_facet |
Ben Kheder, Rym Moal, Jeanne Robert, Rene |
author_sort |
Ben Kheder, Rym |
title |
Impact of temperature on larval development and evolution of physiological indices in Crassostrea gigas |
title_short |
Impact of temperature on larval development and evolution of physiological indices in Crassostrea gigas |
title_full |
Impact of temperature on larval development and evolution of physiological indices in Crassostrea gigas |
title_fullStr |
Impact of temperature on larval development and evolution of physiological indices in Crassostrea gigas |
title_full_unstemmed |
Impact of temperature on larval development and evolution of physiological indices in Crassostrea gigas |
title_sort |
impact of temperature on larval development and evolution of physiological indices in crassostrea gigas |
publisher |
Elsevier Science Bv |
publishDate |
2010 |
url |
https://archimer.ifremer.fr/doc/00019/13046/10146.pdf https://doi.org/10.1016/j.aquaculture.2010.09.005 https://archimer.ifremer.fr/doc/00019/13046/ |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
Aquaculture (0044-8486) (Elsevier Science Bv), 2010-11 , Vol. 309 , N. 1-4 , P. 286-289 |
op_relation |
https://archimer.ifremer.fr/doc/00019/13046/10146.pdf doi:10.1016/j.aquaculture.2010.09.005 https://archimer.ifremer.fr/doc/00019/13046/ |
op_rights |
2010 Elsevier B.V. All rights reserved. info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1016/j.aquaculture.2010.09.005 |
container_title |
Aquaculture |
container_volume |
309 |
container_issue |
1-4 |
container_start_page |
286 |
op_container_end_page |
289 |
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1766393533863821312 |