Species composition and assemblage structure of microfouling diatoms growing on fiberglass plates off the coast of Yucatán, Mexico

  • Francisco Omar López-Fuerte 1Laboratorio de Sistemas Arrecifales, Depto. Académico de Economía, Universidad Autónoma de Baja California Sur. Carretera al Sur, Km. 5.5 s/n, La Paz, Baja California Sur, 23080. México Colección de Microalgas, Centro de Investigaciones Biológicas del Noroeste (CIBNOR). Avenida Instituto Politécnico Nacional 195 s/n, Col. Playa Palo de Sta. Rita, La Paz, Baja California Sur, 23096, México
  • David A. Siqueiros-Beltrones Instituto Politécnico Nacional, Departamento de Plancton y Ecología Marina, Centro Interdisciplinario de Ciencias Marinas (CICIMAR). Avenida Instituto Politécnico Nacional s/n, Col. Playa Palo de Santa Rita, La Paz, Baja California Sur, 23096, México
  • Lucien Veleva Instituto Politécnico Nacional, Laboratorio de Fisicoquímica, Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados-Unidad Mérida (CINVESTAV) Km. 6 Antigua carretera a Progreso, Cordemex, s/n, Col. Loma Bonita Xcumpich, Mérida, Yucatán, 97310, México
  • Dora A. Huerta-Quintanilla 5Instituto Politécnico Nacional, Laboratorio Nacional para el análisis de Nano y Biomateriales, CINVESTAV e-mail: dsiquei@gmail.com
Palabras clave: Bacillariophyceae, colonization, Coscinodiscophyceae, fiberglass substrate, fouling diatoms, Fragilariophyceae.

Resumen

Background. It is generally accepted that exopolymer films secreted by diatoms promote the onset of macrofouling on surfaces of materials used in marine environments. However, few studies provide precise information at species level regarding the microfouling process. The use of anti-fouling paints on different surfaces to create a toxic environment may aid in precluding development of the initial diatom microfilm leading to macrofouling. Goals. To describe the species composition and the structure of fouling diatoms. Methods. We analyzed assemblages growing on fiberglass plates, coated and uncoated with antifouling paint, fixed on PVC stands submerged at a 10-m depth. Because diatoms are opportunistic, fast growing microalgae that proliferate on many substrates, our hypothesis was that diatom assemblages growing on fiberglass surfaces, coated or uncoated with antifouling paint, would not differ in their structure. Results. Floristic analysis yielded 170 diatom taxa and similar assemblages with high values of diversity occurring on both surfaces. Conclusions. In keeping with our hypothesis, both colonized fiberglass surfaces compare to living substrata that favor the growth of diatom associations that exhibit high species diversity. This information will be useful in environmental studies, such as pollution abatement, and for the design and maintenance of fishing boats and industrial equipment prone to biofouling.

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Publicado
14-07-2017
Cómo citar
López-Fuerte, F. O., Siqueiros-Beltrones, D. A., Veleva, L., & Huerta-Quintanilla, D. A. (2017). Species composition and assemblage structure of microfouling diatoms growing on fiberglass plates off the coast of Yucatán, Mexico. HIDROBIOLÓGICA, 27(1), 23-37. https://doi.org/10.24275/uam/izt/dcbs/hidro/2017v27n1/Siqueiros
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