Abstract

HERNANDEZ-ALMEIDA, Oscar U.; HERRERA-SILVEIRA, Jorge A.  and  MERINO-VIRGILIO, Fany. Nine new records of benthic diatoms of the genera Cimaconeis, Cocconeis, Licmophora, Talaroneis, Oestrupia, Petroneis and Synedrosphenia from the northern coast of the Yucatan Peninsula, Mexico. Hidrobiológica [online]. 2013, vol.23, n.2, pp.154-168. ISSN 0188-8897.

The ecology and floristics of the marine benthic diatoms are barely studied in Mexico. For the Yucatán Península, there are practically no studies dealing with these topics. The objective of this study is to present new records of benthic diatoms and their distribution in the northern coast of the Yucatán Península; descriptions based on light and electron microscopy are also provided. In order to achieve this, we examined phytoplankton samples from various localities and from Thalassia testudinum blades on Dzilam de Bravo. With the exception of Synedrosphenia cuneata and Cocconeis maxima the remainder species were found both on phytoplankton and T. testudinum samples, thus suggesting that re-suspension processes of benthic diatoms are occurring in the area. The most abundant species was Climaconeis aff. coxii. The number of new records from a few samples emphasizes the need to continue and intensify the study of benthic diatoms in the Yucatán Península.

Keywords : Benthic diatoms; coastal phytoplankton; microphytobenthos; new records; taxonomy.

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