Effects of Ultraviolet Radiation on Sediment Burial Parameters and Photo-Oxidative Response of the Intertidal Anemone <i>Anthopleura hermaphroditica</i>
<i>Anthopleura hermaphroditica</i> is an intertidal anemone that lives semi-buried in soft sediments of estuaries and releases its brooded embryos directly to the benthos, being exposed to potentially detrimental ultraviolet radiation (UVR) levels. In this study, we investigated how expe...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Antioxidants |
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| Online Access: | https://www.mdpi.com/2076-3921/11/9/1725 |
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| author | Víctor M. Cubillos Javier A. Álvarez Eduardo Ramírez Edgardo Cruces Oscar R. Chaparro Jaime Montory Carlos A. Spano |
| author_facet | Víctor M. Cubillos Javier A. Álvarez Eduardo Ramírez Edgardo Cruces Oscar R. Chaparro Jaime Montory Carlos A. Spano |
| author_sort | Víctor M. Cubillos |
| collection | DOAJ |
| description | <i>Anthopleura hermaphroditica</i> is an intertidal anemone that lives semi-buried in soft sediments of estuaries and releases its brooded embryos directly to the benthos, being exposed to potentially detrimental ultraviolet radiation (UVR) levels. In this study, we investigated how experimental radiation (PAR: photosynthetically active radiation; UVA: ultraviolet A radiation; and UVB: ultraviolet B radiation) influences burrowing (time, depth and speed) in adults and juveniles when they were exposed to PAR (P, 400–700 nm), PAR + UVA (PA, 315–700 nm) and PAR + UVA + UVB (PAB, 280–700 nm) experimental treatments. The role of sediment as a physical shield was also assessed by exposing anemones to these radiation treatments with and without sediment, after which lipid peroxidation, protein carbonyls and total antioxidant capacity were quantified. Our results indicate that PAB can induce a faster burial response compared to those anemones exposed only to P. PAB increased oxidative damage, especially in juveniles where oxidative damage levels were several times higher than in adults. Sediment offers protection to adults against P, PA and PAB, as significant differences in their total antioxidant capacity were observed compared to those anemones without sediment. Conversely, the presence or absence of sediment did not influence total antioxidant capacity in juveniles, which may reflect that those anemones have sufficient antioxidant defenses to minimize photooxidative damage due to their reduced tolerance to experimental radiation. Burrowing behavior is a key survival skill for juveniles after they have been released after brooding. |
| first_indexed | 2024-03-10T00:52:50Z |
| format | Article |
| id | doaj.art-5db08305156f482ebb94fda95f5edbd0 |
| institution | Directory Open Access Journal |
| issn | 2076-3921 |
| language | English |
| last_indexed | 2024-03-10T00:52:50Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Antioxidants |
| spelling | doaj.art-5db08305156f482ebb94fda95f5edbd02023-11-23T14:47:56ZengMDPI AGAntioxidants2076-39212022-08-01119172510.3390/antiox11091725Effects of Ultraviolet Radiation on Sediment Burial Parameters and Photo-Oxidative Response of the Intertidal Anemone <i>Anthopleura hermaphroditica</i>Víctor M. Cubillos0Javier A. Álvarez1Eduardo Ramírez2Edgardo Cruces3Oscar R. Chaparro4Jaime Montory5Carlos A. Spano6Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5090000, ChileInstituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5090000, ChileInstituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5090000, ChileCentro de Investigaciones Costeras, Universidad de Atacama (CIC-UDA), Avenida Copayapu 485, Copiapó 1530000, ChileInstituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5090000, ChileCentro i~mar, Universidad de Los Lagos, Casilla 557, Puerto Montt 5480000, ChileDepartamento de Oceanografía Biológica, Ecotecnos S.A., Limache 3405, Viña del Mar 2520000, Chile<i>Anthopleura hermaphroditica</i> is an intertidal anemone that lives semi-buried in soft sediments of estuaries and releases its brooded embryos directly to the benthos, being exposed to potentially detrimental ultraviolet radiation (UVR) levels. In this study, we investigated how experimental radiation (PAR: photosynthetically active radiation; UVA: ultraviolet A radiation; and UVB: ultraviolet B radiation) influences burrowing (time, depth and speed) in adults and juveniles when they were exposed to PAR (P, 400–700 nm), PAR + UVA (PA, 315–700 nm) and PAR + UVA + UVB (PAB, 280–700 nm) experimental treatments. The role of sediment as a physical shield was also assessed by exposing anemones to these radiation treatments with and without sediment, after which lipid peroxidation, protein carbonyls and total antioxidant capacity were quantified. Our results indicate that PAB can induce a faster burial response compared to those anemones exposed only to P. PAB increased oxidative damage, especially in juveniles where oxidative damage levels were several times higher than in adults. Sediment offers protection to adults against P, PA and PAB, as significant differences in their total antioxidant capacity were observed compared to those anemones without sediment. Conversely, the presence or absence of sediment did not influence total antioxidant capacity in juveniles, which may reflect that those anemones have sufficient antioxidant defenses to minimize photooxidative damage due to their reduced tolerance to experimental radiation. Burrowing behavior is a key survival skill for juveniles after they have been released after brooding.https://www.mdpi.com/2076-3921/11/9/1725antioxidant metabolismbehavioroxidative damagesea anemonesediment burrowingUVB radiation |
| spellingShingle | Víctor M. Cubillos Javier A. Álvarez Eduardo Ramírez Edgardo Cruces Oscar R. Chaparro Jaime Montory Carlos A. Spano Effects of Ultraviolet Radiation on Sediment Burial Parameters and Photo-Oxidative Response of the Intertidal Anemone <i>Anthopleura hermaphroditica</i> Antioxidants antioxidant metabolism behavior oxidative damage sea anemone sediment burrowing UVB radiation |
| title | Effects of Ultraviolet Radiation on Sediment Burial Parameters and Photo-Oxidative Response of the Intertidal Anemone <i>Anthopleura hermaphroditica</i> |
| title_full | Effects of Ultraviolet Radiation on Sediment Burial Parameters and Photo-Oxidative Response of the Intertidal Anemone <i>Anthopleura hermaphroditica</i> |
| title_fullStr | Effects of Ultraviolet Radiation on Sediment Burial Parameters and Photo-Oxidative Response of the Intertidal Anemone <i>Anthopleura hermaphroditica</i> |
| title_full_unstemmed | Effects of Ultraviolet Radiation on Sediment Burial Parameters and Photo-Oxidative Response of the Intertidal Anemone <i>Anthopleura hermaphroditica</i> |
| title_short | Effects of Ultraviolet Radiation on Sediment Burial Parameters and Photo-Oxidative Response of the Intertidal Anemone <i>Anthopleura hermaphroditica</i> |
| title_sort | effects of ultraviolet radiation on sediment burial parameters and photo oxidative response of the intertidal anemone i anthopleura hermaphroditica i |
| topic | antioxidant metabolism behavior oxidative damage sea anemone sediment burrowing UVB radiation |
| url | https://www.mdpi.com/2076-3921/11/9/1725 |
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