Título del libro: Lake Alchichica Limnology: The Uniqueness Of A Tropical Maar Lake
Título del capítulo: The Littoral Community
JAVIER ALCOCER DURAND; ELVA GUADALUPE ESCOBAR BRIONES; LUIS ALBERTO OSEGUERA PEREZ; ALFONSO LUGO VAZQUEZ; MARIA DEL ROSARIO SANCHEZ RODRIGUEZ; LAURA PERALTA SORIANO; MARIA GUADALUPE OLIVA MARTINEZ;
Autores externos:
Idioma:
Año de publicación:
2022
Palabras clave:
Benthic macroinvertebrates; Diatoms; Functional Feeding Groups; Heterotrophic protists; Trophic groups
Resumen:
Diatoms are fundamental primary producers in freshwater, marine, and aquatic ecosystems. Its characteristic structure, the frustule, is made of silicon dioxide, which is why these organisms actively participate in the silicon cycle on our planet. In the littoral zone of Lake Alchichica, a high species richness (40 spp.) was found in 8 sites studied over three periods and in four different substrates: epiphytic (on Ruppia maritima and Chara canescens), epilithic, and in the plocon. Pennate diatoms dominated, and the most frequently observed species were Navicymbula pusilla, Rophalodia gibberula, Gomphoneis olivaceum, Mastogloia smithii, Halamphora veneta, Mastogloia elliptica, Cocconeis placentula, Surirella striata, Anomoeneis sphavicula, and Anomoneis sp. Most of the species (23 spp.) occurred in the three samplings, and eight species were found in a single sample. Regarding their spatial distribution, only G. olivaceum and N. pusilla appeared in the eight sampling sites in October 2006 and March 2007. Six species more were found in all sites in March 2007. In September 2007, three species were present in all sites. Most species did not show a preference for some substrate since they grew on the four substrates collected. Cluster analysis showed that temporal variation had the most significant influence because samples were mainly grouped by the sampling date. Some of the plocon samples became the ones with the most remarkable difference in species composition. The Lake Alchichica diatoms seem to be of great importance as components of the littoral food web, as they are indeed a very significant food for most of the different groups of macroinvertebrates that inhabit it. Together with the planktonic diatom species, they indeed have a very relevant function within the lake?s silicon cycle. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2022.
Entidades citadas de la UNAM:
ISBN:
9783030790967
Editorial:
Springer International Publishing Nombre de la publicación:
The Littoral Community
Página inicial:
163
Página final:
182
