Results 61 to 70 of about 554 (146)

Anthropogenic Barriers Limit Fish Access to Essential Habitats in the Amazon in the Face of Climate Change

Global Change Biology, Volume 32, Issue 1, January 2026.
Rivers across the Amazon Basin are increasingly threatened by climate change and dam construction, which restrict fish movements. We combined climate projections with river‐network connectivity analyses to identify where suitable habitats for frugivorous and socioeconomically important fish are likely to persist and where access may be lost due to ...
Kátia Yasuko Yofukuji, Thomaz Mansini Carrenho Fabrin, Bruno Henrique Mioto Stabile, Angelo Antonio Agostinho, Céline Jézéquel, Valéria Flávia Batista‐Silva, Luiz Fernando Esser, José Hilário Delconte Ferreira, Reginaldo Ré, Pablo A. Tedesco, João Carlos Azevedo, Dayani Bailly   +11 more
wiley   +1 more source

Características morfométricas de un lago de plano inundable tropical (ciénaga Hoyo, Los Bagres, Colombia)

Revista Facultad de Ingeniería Universidad de Antioquia, 2011
En este artículo se presentan las características morfométricas de La ciénaga Hoyo Los Bagres (Colombia) y las predicciones de carácter teórico derivadas.
Yimmy Montoya Moreno, Fabio Vélez, Néstor Aguirre Ramírez   +2 more
doaj  

Prof Stephen P. Long, FRS (1950–2025) [PDF]

Global change biology.
GCB Bioenergy, Volume 18, Issue 1, January 2026.
Álvarez‐Filip L, Bai E, Bernacchi C, Bruno R, Butterbach‐Bahl K, Byrne M, Chen I, Chen S, Cheung W, Cotrufo M, Dalu T, Feng X, Fu Y, Gao Y, Huszar V, Janssens I, Jeong S, Jones T, Joseph S, Khanna M, Kirschbaum M, Kobayashi K, LaRoche J, Leakey A, Li X, Li Y, Liu L, Lohila A, Luo Y, McKechnie A, Monadjem A, Nolan R, Pearson R, Peng S, Peñuelas J, Piao S, Robinson S, Ryu Y, Sage R, Shekar R, Xue S, Smith P, Souza G, Spatari S, Suggett D, Wang G, Way D, Wu J, Xia L.   +48 more
europepmc   +2 more sources

Effects of oligotrophication on fish growth: Insights from a mesocosm experiment

Limnology and Oceanography, Volume 70, Issue S2, Page S392-S403, December 2025.
Abstract Human activities can frequently affect aquatic ecosystems in irreversible ways, with flow regulation and water quality being major concerns. Dams can promote the retention of sediments and nutrients, increase water transparency, and reduce primary productivity, all of which characterize the oligotrophication process.
Juliana Deo Dias, Nadson Ressye Simões, Claudia Costa Bonecker, Angelo Antonio Agostinho   +3 more
wiley   +1 more source

Using environmental DNA to identify priority areas for sawfish conservation in Costa Rica, Central America

Endangered Species Research
Environmental DNA (eDNA) analysis is becoming a valuable conservation tool for detecting rare and threatened species in a variety of aquatic environments, but studies in freshwater and estuarine habitats with high levels of suspended sediment are still ...
JA Valerio-Vargas, MK Cooper, CA Simpfendorfer, M Espinoza   +3 more
doaj   +1 more source

Efectos del mercurio sobre algunas plantas acuáticas tropicales

, 2006
This paper describes the effects of mercury on some aquatic plants of the tropics and their habitats. Additionally, a protocol for toxicity tests in duckweed (Lemna minor) is recommended, and the results of preliminary tests with salts of mercury under ...
Posada Posada, Martha Isabel, Arroyave-Maya, M. P. (Maria del Pilar), Posada-Posada, M. I. (Martha Isabel), Arroyave Maya, María del Pilar   +3 more
core  

VARIACIONES NICTEMERALES DE ALGUNAS VARIABLES CLIMÁTICAS, FÍSICAS Y QUÍMICAS EN UNA LAGUNA SOMERA EN GUATAPÉ (ANTIOQUIA), COLOMBIA NICTEMERAL VARIATION OF SOME CLIMATIC, PHYSICAL AND CHEMICAL VARIABLES ON SMALL LAKE IN GUATAPÉ (ANTIOQUIA), COLOMBIA

Actualidades Biológicas, 2008
Se evaluó la variación nictemeral de algunas variables climáticas, físicas y químicas durante dos días de muestreos separados por seis meses en dos épocas hidrológicas diferentes en una laguna tropical en el municipio de Guatapé (Antioquia), Colombia ...
Yimmy Montoya-M
doaj  

Environmental conditions and carbonate chemistry variability influencing coral reef composition along the Pacific coast of Costa Rica

Frontiers in Marine Science
Coral reef development is influenced by a wide variety of factors, including temperature, salinity, nutrient concentrations, and carbonate chemistry. Studies focusing on physicochemical drivers of coral reef distribution and composition in the Eastern ...
Celeste Sánchez-Noguera, Celeste Sánchez-Noguera, Ines D. Lange, Ines D. Lange, Jorge Cortés, Carlos Jiménez, Christian Wild, Tim Rixen   +7 more
doaj   +1 more source

Connecting a Trophic Model and Local Ecological Knowledge to Improve Fisheries Management: The Case of Gulf of Nicoya, Costa Rica

Frontiers in Marine Science, 2019
Trophic models of the Ecopath with Ecosim (EwE) type and local ecological knowledge (LEK) have widely been applied to fisheries assessment and management.
Astrid Sánchez-Jiménez, Astrid Sánchez-Jiménez, Marie Fujitani, Douglas MacMillan, Achim Schlüter, Matthias Wolff   +5 more
doaj   +1 more source

Composition, dynamics and abundance of the phytoplankton community of a lagoon with waters of volcanic origin

, 2011
Se presenta la composición y dinámica del fitoplancton de la laguna Aguas Tibias, Coconuco, Puracé. Se realizaron muestreos mensuales durante octubre de 2006 a junio de 2007. Se midieron temperatura, pH, oxígeno disuelto, conductividad y nutrimentos (N y
Naundorf Sanz, Gerardo, Medina Tombe, Mario, Salazar Sánchez, Margarita   +2 more
core