Results 91 to 100 of about 2,824 (201)

The seawater neodymium and lead isotope record of the final stages of Central American Seaway closure [PDF]

open access: yes, 2014
Key Points: Seawater Nd and Pb isotope records for the Pliocene Caribbean and EEP Caribbean Nd isotope composition became more UNADW-like during the Pliocene Short term changes support link between CAS closure and strength of AMOC The ...
Frank, Martin   +5 more
core   +1 more source

Influence of environmental and biological factors on mercury accumulation in fish from the Atrato River Basin, Colombia

open access: yesEnvironmental Pollution
Understanding variations in total mercury (T-Hg) levels in fish is crucial for protecting aquatic biota and human health. This article evaluates the influence of environmental factors (temperature, pH) and biological variables (feeding habits, trophic level, total length, total weight), on T-Hg concentrations in fish from the Atrato River basin ...
Jorge Bernal-Alviz   +7 more
openaire   +3 more sources

WATER LEVEL RECONSTRUCTION OF THE ATRATO RIVER WITH TREE RINGS OF PRIORIA COPAIFERA

open access: yes, 2011
dendrochronology provides hydroclimatic proxy records in many regions with scarcity of instrumental records. In this paper, we reconstructed the Low Atrato River´s water levels and assessed the effect of the ENSO phenomenon in the river level over the past 150 years using the tree rings of Prioria copaifera tree (Cativo).
HERRERA, DAVID ANDRÉS   +1 more
openaire   +1 more source

Aquatic insects associated with macrophytes in wetlands of the middle basin of Atrato River, Chocó - Colombia

open access: yesRevista U.D.C.A Actualidad & Divulgación Científica
Aquatic macrophytes play an important role in lentic systems, since they constitute the particular habitat of several groups of aquatic insects and play a fundamental role in structuring their communities. The objective of this study was to contribute to the knowledge of the aquatic entomofauna associated with macrophytes in wetlands of the middle ...
Zuleyma Mosquera-Murillo   +4 more
openaire   +1 more source

Tendencias de la investigación en Ingeniería Ambiental [PDF]

open access: yes, 2008
Esta obra incluye las memorias del Simposio “Tendencias de la Investigación en Ingeniería Ambiental”, organizado por el Grupo de Investigaciones y Mediciones Ambientales (GEMA), realizado en la Universidad de Medellín en agosto de 2007.
Arias Muñoz, Carolina   +33 more
core  

Flora etnoodontológica de las comunidades indígenas embera del Atrato Medio antioqueño Ethno-dentistry flora of the embera indigenous communities from Antioquia's Medio Atrato region

open access: yesRevista Facultad de Odontología Universidad de Antioquia, 2012
INTRODUCCIÓN: entre los espacios de uso y manejo de la sucesión de bosque hecho por los embera que habitan ecosistemas húmedos tropicales del Chocó biogeográfico se encuentran una serie de plantas de uso odontológico.
José Ubeimar Arango Arroyave   +1 more
doaj  

On the freshwater shells of Tasmania [PDF]

open access: yes, 1875
No attempt has yet been made to arrange the freshwater shells of Tasmania. The land shells have been carefully catalogued by Mr. Legrand, so that little remains to be desired in that department of our island fauna.
Tenison Woods, Julian Edmund
core   +1 more source

The Neotropical whale catfishes (Siluriformes: Cetopsidae: Cetopsinae), a revisionary study

open access: yesNeotropical Ichthyology
The catfishes of the subfamily Cetopsinae of the Neotropical family Cetopsidae are revised. Four genera, Cetopsidium new genus, Cetopsis, Denticetopsis, and Paracetopsis Bleeker are recognized as valid. Bathycetopsis, Hemicetopsis, and Pseudocetopsis are
Richard P. Vari   +2 more
doaj   +1 more source

Estudio de amenaza por inundación en la cabecera municipal del municipio de Garzón-Huila, mediante el software Hec-ras en 2d para Tr 10, 20 y 100 años [PDF]

open access: yes, 2019
Trabajo de investigaciónEl presente informe tiene como finalidad presentar el análisis de amenaza por inundación mediante el software HEC-RAS para períodos de retorno de 10 20 y 100 años y su categorización mediante la metodología propuesta por el ...
Figueroa-Silva, Katherine Daniela   +1 more
core  

ALGUNOS ASPECTOS BIOLÓGICOS DE LA POBLACIÓN DE PROCHILODUS MAGDALENAE EN LAS CIÉNAGAS DE TUMARADÓ (RÍO ATRATO), COLOMBIA SOME BIOLOGICAL ASPECTS OF PROCHILODUS MAGDALENAE POPULATION IN TUMARADÓ FLOODPLAIN LAGOONS (ATRATO RIVER), COLOMBIA

open access: yesActualidades Biológicas, 2008
Se colectaron 355 individuos de Prochilodus magdalenae provenientes de las capturas realizadas por los pescadores artesanales de las ciénagas de Tumaradó, ubicadas en la cuenca baja del río Atrato (Chocó), Colombia, dentro del Parque Nacional Natural ...
Ursula Jaramillo-Villa   +1 more
doaj  

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