Cadmium and morphological alterations in the rotifer Philodina cf. roseola (Bdelloidea: Philodinidae) and the worm Aeolosoma hemprichi (Annelida: Aeolosomatidae)
Fuente:
Redalyc
Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad de Costa Rica
2019
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1876442075661074432 |
|---|---|
| author | Daniela Pérez-Yañez |
| author_facet | Daniela Pérez-Yañez |
| contents | Cadmium and morphological alterations in the rotifer Philodina cf. roseola (Bdelloidea: Philodinidae) and the worm Aeolosoma hemprichi (Annelida: Aeolosomatidae) Daniela Pérez-Yañez Danika Ruth Soriano-Martínez Mendy Eded Damian-Ku Eduardo Cejudo-Espinosa Jesús Alvarado-Flores Biología Teratology zooplankton ecotoxicology metal toxicity Yucatan Peninsula Cadmium is a toxic metal for zooplankton that produces deformations. It is also considered an environmental hazard to aquatic life. Since it has a significant effect in some marine organisms, we used two native zooplankton species from Quintana Roo, Mexico to obtain data regarding cadmium toxicity including the threshold concentration for observable morphological alterations and the percentage of organisms with morphological alterations at the exposure concentrations. We used the rotifer Philodina cf roseola and the oligochaeta Aeolosoma hemprichi, since both feed from the algae Nannochloropsis oculata. Both animals were exposed to a cadmium concentration range from 0.05 mg/l (0.047 mg/l, real concentration) to 10.0 mg/l (9.39 mg/l, real concentration) for 24 h. The LC50 for cadmium in P. cf roseola was 0.7 mg/l (0.65 mg/l, real concentration), whereas in A. hemprichi was 3.38 mg/l (3.17 mg/l, real concentration). The exposure of cadmium at 0.5 mg/l (0.47 mg/l, real concentration) for less than 24 h induced morphological alterations in the lorica of rotifers, foot deformations, and constriction in the middle part of the body. In oligochaetes, damage to the epidermis was noted. The threshold concentration where deformations appeared in rotifer was 0.3 mg/l at 24 h, while in oligochaeta was 0.5 mg/l (0.47 mg/l, real concentration) at 30 min. We concluded that cadmium promotes alterations in aquatic organisms due to direct exposure added to the culture medium. 2019 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44965908021 https://www.redalyc.org/journal/449/44965908021/ https://www.redalyc.org/journal/449/44965908021/html/ https://www.redalyc.org/journal/449/44965908021/44965908021.epub https://www.redalyc.org/journal/449/44965908021/movil DOI 10.15517/RBT.V67I6.35981 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.6 Vol.67 |
| format | Artículo científico |
| id | redalyc_44965908021 |
| institution | Redalyc |
| language | en |
| publishDate | 2019 |
| publisher | Universidad de Costa Rica |
| spellingShingle | Cadmium and morphological alterations in the rotifer Philodina cf. roseola (Bdelloidea: Philodinidae) and the worm Aeolosoma hemprichi (Annelida: Aeolosomatidae) Daniela Pérez-Yañez Biología Teratology zooplankton ecotoxicology metal toxicity Yucatan Peninsula Cadmium and morphological alterations in the rotifer Philodina cf. roseola (Bdelloidea: Philodinidae) and the worm Aeolosoma hemprichi (Annelida: Aeolosomatidae) Daniela Pérez-Yañez Danika Ruth Soriano-Martínez Mendy Eded Damian-Ku Eduardo Cejudo-Espinosa Jesús Alvarado-Flores Biología Teratology zooplankton ecotoxicology metal toxicity Yucatan Peninsula Cadmium is a toxic metal for zooplankton that produces deformations. It is also considered an environmental hazard to aquatic life. Since it has a significant effect in some marine organisms, we used two native zooplankton species from Quintana Roo, Mexico to obtain data regarding cadmium toxicity including the threshold concentration for observable morphological alterations and the percentage of organisms with morphological alterations at the exposure concentrations. We used the rotifer Philodina cf roseola and the oligochaeta Aeolosoma hemprichi, since both feed from the algae Nannochloropsis oculata. Both animals were exposed to a cadmium concentration range from 0.05 mg/l (0.047 mg/l, real concentration) to 10.0 mg/l (9.39 mg/l, real concentration) for 24 h. The LC50 for cadmium in P. cf roseola was 0.7 mg/l (0.65 mg/l, real concentration), whereas in A. hemprichi was 3.38 mg/l (3.17 mg/l, real concentration). The exposure of cadmium at 0.5 mg/l (0.47 mg/l, real concentration) for less than 24 h induced morphological alterations in the lorica of rotifers, foot deformations, and constriction in the middle part of the body. In oligochaetes, damage to the epidermis was noted. The threshold concentration where deformations appeared in rotifer was 0.3 mg/l at 24 h, while in oligochaeta was 0.5 mg/l (0.47 mg/l, real concentration) at 30 min. We concluded that cadmium promotes alterations in aquatic organisms due to direct exposure added to the culture medium. 2019 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44965908021 https://www.redalyc.org/journal/449/44965908021/ https://www.redalyc.org/journal/449/44965908021/html/ https://www.redalyc.org/journal/449/44965908021/44965908021.epub https://www.redalyc.org/journal/449/44965908021/movil DOI 10.15517/RBT.V67I6.35981 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.6 Vol.67 |
| title | Cadmium and morphological alterations in the rotifer Philodina cf. roseola (Bdelloidea: Philodinidae) and the worm Aeolosoma hemprichi (Annelida: Aeolosomatidae) |
| topic | Biología Teratology zooplankton ecotoxicology metal toxicity Yucatan Peninsula |
| url | https://www.redalyc.org/articulo.oa?id=44965908021 https://www.redalyc.org/journal/449/44965908021/ https://www.redalyc.org/journal/449/44965908021/html/ https://www.redalyc.org/journal/449/44965908021/44965908021.epub https://www.redalyc.org/journal/449/44965908021/movil |