Results 51 to 60 of about 569,797 (126)

Microbialites on the northern shelf of Lake Van, eastern Türkiye#: Morphology, texture, stable isotope geochemistry and age

Sedimentology, Volume 71, Issue 3, Page 850-870, April 2024.
ABSTRACT Lake Van, the world's largest alkaline lake, hosts some of the largest microbialite towers worldwide, which are considered as modern analogues of ancient stromatolites. This study investigates the links between microbialite evolution, geology, climate and hydrology, and the role of biotic and abiotic processes in microbialite growth and ...
M. Namık Çağatay, Emre Damcı, Germain Bayon, Mustafa Sarı   +3 more
wiley   +1 more source

Ensamble de crustáceos bentónicos en un lago salino tropical Benthic crustaceans assemblage in a tropical, saline lake

Revista Mexicana de Biodiversidad, 2010
El presente trabajo reconoce la composición, estructura y distribución espacial del ensamble de crustáceos bentónicos de Alchichica, un lago salino tropical ubicado en el extremo oriental del altiplano mexicano. El lago presenta una riqueza taxonómica de
Ma. del Carmen Hernández, Elva Escobar, Javier Alcocer   +2 more
doaj  

Initial field data for the Critically Endangered Alchichica salamander Ambystoma taylori from Lago Alchichica, Mexico

The herpetological bulletin
The Lake Alchichica salamander Ambystoma taylori is a Critically Endangered, neotenic inhabitant of a single, hyposaline lake in Puebla, Mexico. Between 2015 and 2018, initial field data were collected for this understudied species, to inform future ...
Christopher J. Michaels, José Alfredo Hernández Díaz   +1 more
semanticscholar   +1 more source

Depth-dependent sulfur speciation in modern carbonate microbialites from a monomictic lake

Advances in Geochemistry and Cosmochemistry
Recently, carbonate microbialites were discovered in Lake Alchichica, Mexico, forming below the oxycline (down to 40 m depth), under seasonally anoxic conditions, while conspicuous microbialites also grow at shallower depths under continuously oxic ...
J. Caumartin, K. Benzerara, R. Havas, C. Thomazo, Neha Mehta, Vladimir Betancourt, L. C. Colocho Hurtarte, M. Cotte, I. Estève, Didier Jézéquel, E. Kotopoulou, Pierre Sans-Jofre, R. Tavera, Purificaciόn Lόpez-Garcίa   +13 more
semanticscholar   +1 more source

Antiproliferative potential of 3β,5α,6β,7α-tetrahydroxyergosta-8(14),22-diene produced by Acremonium persicinum isolated from an alkaline crater lake in Puebla, Mexico

Natural Product Research, 2019
The sterol 3β,5α,6β,7α-tetrahydroxyergosta-8(14),22-diene was obtained from bio-guided fractioning of the chloroform extract of 50 L of liquid culture of Acremonium persicinum.
César Franceschy, C. Espinoza, J. Padrón, Gandhi Landa-Cadena, M. Norte, J. J. Fernández, A. Shnyreva, Á. Trigos   +7 more
semanticscholar   +1 more source

Water–Rock Interaction Processes in Groundwater and Flows in a Maar Lake in Central Mexico

Water
Tropical maar lakes are distinct ecosystems with unique ecological features. To comprehend, manage, and conserve these lakes, it is essential to understand their water sources, particularly groundwater, and the hydrogeochemical processes shaping their ...
S. Olea-Olea, Raúl A. Silva-Aguilera, J. Alcocer, Ó. Escolero, E. Morales-Casique, Jose Roberto Florez-Peñaloza, Kevin Alexis Almora-Fonseca, L. Oseguera   +7 more
semanticscholar   +1 more source

On Limnocytherina axalapasco, a new freshwater ostracod (Podocopida: Limnocytheridae) from Mexican crater lakes

Revista de Biología Tropical, 2014
Limnocytherina is a genus conformed by 12 species; its distribution in the American continent is known to be exclusively on the North (neartics), but little is reported about its distribution from Mexico (transition zone) and Central America (Neotropics).
Sergio Cohuo-Durán, Liseth Pérez, Ivana Karanovic   +2 more
doaj  

TEMPORAL VARIATION IN THE ABUNDANCE OF POBLANA ALCHICHICA IN NEAR-SHORE HABITAT OF THE HIGH ELEVATION LAKE, LAGO DE ALCHICHICA, PUEBLA, MEXICO

, 2012
"The distribution and abundance of organisms within a pond or lake can reflect the result of a variety of factors. We examined the abundance of the endemic fish, Poblana Alchichica, in Lago de Alchichica, Puebla, Mexico, as well as how the abundance varied among months. Dissolved oxygen, temperature, and salinity varied among months.
GUILLERMO A. WOOLRICH-PIÑA, GEOFFREY R. SMITH, JULIO A. LEMOS-ESPINAL, RAYMUNDO MONTOYA-AYALA, LUIS E. ÁVILA-BOCANEGRA, EDUARDO BENAVIDES GARDUÑO   +5 more
openaire   +2 more sources

The spatio-temporal distribution of alkaline phosphatase activity and phoD gene abundance and diversity in sediment of Sancha Lake. [PDF]

Sci Rep, 2023
Li Y, Yu X, Liu H, Gong Z.
europepmc   +1 more source

Geomicrobiology of Alchichica alkaline lake microbialites (Mexico)

, 2012
Les stromatolites sont des structures organo-sédimentaires formées grâce à l'activité des microorganismes. Ils dominent le registre fossile Précambrien et sont parmi les plus anciennes traces potentielles de vie sur Terre (datées à 3,5 Ga). Cependant les processus biotiques et abiotiques à l'origine de leur formation restent peu compris et ouvrent des ...
openaire   +1 more source