Short-term effect of UVR on vertical distribution of Cyrtograpsus altimanus and Alexandrium tamarense from Atlantic Patagonia

Many marine species spend part of their development in upper layers of the water column, where they may be exposed to solar ultraviolet radiation (UVR). For many of these species, light is one of the key environmental clues which triggers behaviorally-mediated adjustments in vertical distribution. W...

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Autores principales: Gonçalves, R.J., Hernández Moresino, R.D., Spinelli, M.L.
Formato: JOUR
Materias:
Crab larvae
Cyrtograpsus altimanus
Decapoda
Hepatocellular
Ultraviolet radiation (UVR)
Vertical distribution
Alexandrium tamarense
Decapoda (Crustacea)
Dinophyceae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0718560X_v42_n5_p963_Goncalves
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_0718560X_v42_n5_p963_Goncalves
record_format dspace
spelling todo:paper_0718560X_v42_n5_p963_Goncalves2023-10-03T15:36:34Z Short-term effect of UVR on vertical distribution of Cyrtograpsus altimanus and Alexandrium tamarense from Atlantic Patagonia Gonçalves, R.J. Hernández Moresino, R.D. Spinelli, M.L. Crab larvae Cyrtograpsus altimanus Decapoda Hepatocellular Ultraviolet radiation (UVR) Vertical distribution Alexandrium tamarense Cyrtograpsus altimanus Decapoda (Crustacea) Dinophyceae Many marine species spend part of their development in upper layers of the water column, where they may be exposed to solar ultraviolet radiation (UVR). For many of these species, light is one of the key environmental clues which triggers behaviorally-mediated adjustments in vertical distribution. We incubated planktonic larvae of the crab Cyrtograpsus altimanus in column-like aquaria to study their responses with/without UVR (under a solar simulator) and with/without a potential prey (the dinoflagellate Alexandrium tamarense). Their vertical distribution was recorded and used to evaluate the combined effects of UVR and the presence of the dinoflagellate on larval behavior. When UVR was absent, most larvae showed a tendency to swim upwards and to aggregate near the surface, regardless of the dinoflagellate presence. However, UVR inhibited this tendency and induced a repellent effect, which resulted in a more homogeneous vertical distribution of larvae. A. tamarense did not affect the vertical distribution of larvae. These results suggest that UVR-triggered, quick adjustments in vertical distribution might be an important strategy for C. altimanus larvae to cope with high solar radiation, which typically occur during the hatching season. © 2014, Escuela de Ciencias del Mar. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0718560X_v42_n5_p963_Goncalves
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Crab larvae
Cyrtograpsus altimanus
Decapoda
Hepatocellular
Ultraviolet radiation (UVR)
Vertical distribution
Alexandrium tamarense
Cyrtograpsus altimanus
Decapoda (Crustacea)
Dinophyceae
spellingShingle Crab larvae
Cyrtograpsus altimanus
Decapoda
Hepatocellular
Ultraviolet radiation (UVR)
Vertical distribution
Alexandrium tamarense
Cyrtograpsus altimanus
Decapoda (Crustacea)
Dinophyceae
Gonçalves, R.J.
Hernández Moresino, R.D.
Spinelli, M.L.
Short-term effect of UVR on vertical distribution of Cyrtograpsus altimanus and Alexandrium tamarense from Atlantic Patagonia
topic_facet Crab larvae
Cyrtograpsus altimanus
Decapoda
Hepatocellular
Ultraviolet radiation (UVR)
Vertical distribution
Alexandrium tamarense
Cyrtograpsus altimanus
Decapoda (Crustacea)
Dinophyceae
description Many marine species spend part of their development in upper layers of the water column, where they may be exposed to solar ultraviolet radiation (UVR). For many of these species, light is one of the key environmental clues which triggers behaviorally-mediated adjustments in vertical distribution. We incubated planktonic larvae of the crab Cyrtograpsus altimanus in column-like aquaria to study their responses with/without UVR (under a solar simulator) and with/without a potential prey (the dinoflagellate Alexandrium tamarense). Their vertical distribution was recorded and used to evaluate the combined effects of UVR and the presence of the dinoflagellate on larval behavior. When UVR was absent, most larvae showed a tendency to swim upwards and to aggregate near the surface, regardless of the dinoflagellate presence. However, UVR inhibited this tendency and induced a repellent effect, which resulted in a more homogeneous vertical distribution of larvae. A. tamarense did not affect the vertical distribution of larvae. These results suggest that UVR-triggered, quick adjustments in vertical distribution might be an important strategy for C. altimanus larvae to cope with high solar radiation, which typically occur during the hatching season. © 2014, Escuela de Ciencias del Mar. All rights reserved.
format JOUR
author Gonçalves, R.J.
Hernández Moresino, R.D.
Spinelli, M.L.
author_facet Gonçalves, R.J.
Hernández Moresino, R.D.
Spinelli, M.L.
author_sort Gonçalves, R.J.
title Short-term effect of UVR on vertical distribution of Cyrtograpsus altimanus and Alexandrium tamarense from Atlantic Patagonia
title_short Short-term effect of UVR on vertical distribution of Cyrtograpsus altimanus and Alexandrium tamarense from Atlantic Patagonia
title_full Short-term effect of UVR on vertical distribution of Cyrtograpsus altimanus and Alexandrium tamarense from Atlantic Patagonia
title_fullStr Short-term effect of UVR on vertical distribution of Cyrtograpsus altimanus and Alexandrium tamarense from Atlantic Patagonia
title_full_unstemmed Short-term effect of UVR on vertical distribution of Cyrtograpsus altimanus and Alexandrium tamarense from Atlantic Patagonia
title_sort short-term effect of uvr on vertical distribution of cyrtograpsus altimanus and alexandrium tamarense from atlantic patagonia
url http://hdl.handle.net/20.500.12110/paper_0718560X_v42_n5_p963_Goncalves
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AT hernandezmoresinord shorttermeffectofuvronverticaldistributionofcyrtograpsusaltimanusandalexandriumtamarensefromatlanticpatagonia
AT spinelliml shorttermeffectofuvronverticaldistributionofcyrtograpsusaltimanusandalexandriumtamarensefromatlanticpatagonia
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