Results 61 to 70 of about 352 (149)

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

Two new trans-Andean species of Imparfinis Eigenmann & Norris, 1900 (Siluriformes: Heptapteridae) from Colombia

open access: yesNeotropical Ichthyology
Two new species of Imparfinis are described from the trans-Andean region of Colombia. Imparfinis timana is diagnosed by having longer anal fin base (12.4-15.5% in SL), in combination with long adipose fin (24.6-31.3% in SL), 5-6 gill rakers on the first ...
Armando Ortega-Lara   +4 more
doaj   +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   +2 more sources

Reconceptualising Cultural Rights

open access: yesBratislava Law Review
Cultural rights remain underdeveloped and marginalised within international human rights law, often defined by vague or state-centric frameworks that reflect Eurocentric values.
Patrick C. Aloamaka
doaj   +1 more source

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

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  

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

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  

Heavy Metal Tolerance of Microorganisms Isolated from Coastal Marine Sediments and Their Lead Removal Potential. [PDF]

open access: yesMicroorganisms, 2023
Alvarado-Campo KL   +8 more
europepmc   +1 more source

Distribución de los gasterópodos del manglar, Neritina virgínea (Neritidae) y Littoraria angulifera (Littorinidae) en la Ecorregión Darién, Caribe colombiano Distribution of the mangrove gastropods Neritina virginea (Neritidae) and Littoraria angulifera (Littorinidae) within the Colombian Caribbean Darién Ecoregion

open access: yesRevista de Biología Tropical, 2012
Aunque los gasterópodos son uno de los grupos más abundantes en los manglares del Caribe, poco se sabe del ámbito de especies particulares debido al enfoque comunitario de la mayoría de los estudios. El ámbito de las poblaciones de L.
Luis Ferney Ortiz, Juan Felipe Blanco
doaj  

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