Journal of Environmental Biology

Ecological composition and distribution of the diatoms

from the Laguna Superior, Oaxaca, Mexico

Author Details

Jos? Luis Moreno-Ruiz

(Corresponding author)

Universidad Aut?noma Metropolitana-Xochimilco, Calzada Del Hueso 1100, Col. Villa Quietud, C.P. 04960,

M?xico, D.F.

e-mail: jlmoreno@correo.xoc.uam.mx;?? jlmr08@yahoo.com.mx;?? jlmr64@yahoo.com.mx

Margarito Tapia-Garcia

Universidad Autonoma Metropolitana-Iztapalapa, Av. Michoacan y Av. La Purisima, Col. Vicentina,

Iztapalapa, C.P. 09340, A.P. 55-535

Sergio Licea

Instituto De Ciencias Del Mar y Limnolog?a, Universidad Nacional Aut?noma de M?xico,

C.P. 04510, A.P. 70-305

Mar?a Guadalupe Figueroa-Torres

Universidad Aut?noma Metropolitana-Xochimilco, Calzada Del Hueso 1100, Col. Villa Quietud,

C.P. 04960, Mexico, D.F.

Alfonso Esquivel

Universidad Aut?noma Metropolitana-Xochimilco, Calzada Del Hueso 1100, Col. Villa Quietud,

C.P. 04960, Mexico, D.F.

Jorge Eduardo Herrera-Galindo

Universidad Del Mar, Puerto ?ngel, Oax., C.P. 70902

Jos? Manuel Gonz?lez-Fern?ndez

Universidad Autonoma Metropolitana-Xochimilco, Calzada Del Hueso 1100, Col. Villa Quietud,

C.P. 04960, M?xico, D.F.

Mar?a Del Carmen Gonz?lez-Macias

Instituto Mexicano Del Petr?leo, Subdirecci?n De Protecci?n Ambiental, Laboratorio De Estudios

Ecol?gicos, C.P. 07730, A.P. 14-805

Publication Data

Paper received:

7 September 2009

Revised received:

16 July 2010

Accepted:

27 September 2010

Abstract

A taxonomic study of diatoms was carried out in a tropical coastal lagoon. Material for this study consists of water samples obtained from February-March 1992 to November-December 2000. Qualitative and quantitative analyses showed the presence of 373 taxa of which the families Bacillariaceae (67 species) and Chaetocerotaceae (37 species) were the most abundant groups. The species Skeletonema costatum, Chaetoceros curvisetus, Coscinodiscus radiatus var. radiatus, Ditylum brightwellii, Thalassiosira eccentrica and Entomoneis alata were found associated with moderate water quality and forming blooms. In addition, a regional comparison between Mexico and South America of the identified species is given. For practical handling, indicative values obtained from their ecological composition are incorporated as well as a code of the floristic list. A checklist of the species and their occurrence are given.

Key words

Phytoplanktic, Indicator values, Neotropical, Blooms, Water quality

Copyright ? 2011 Triveni Enterprises. All rights reserved. No part of the Journal can be reproduced in any form without prior permission. Responsibility regarding the authenticity of the data, and the acceptability of the conclusions enforced or derived, rest completely with the author(s).