Results 61 to 70 of about 174,497 (191)

Poromechanical and Crack Evolution of Olivine‐Rich Rock During Serpentinization

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Serpentinization alters the strength, fracture behavior, and rheology of ultramafic rocks, yet the coupled evolution of mineral reactions, cracking, and mechanical softening remains poorly constrained. We experimentally simulated serpentinization in dunite at 220°C and 15 MPa for 14 and 30 days and compared the reacted specimens with dry heat ...
Ummu‐kulthum Lawal, Kiseok Kim
wiley   +1 more source

Yield per recruit of the peacock bass Cichla monoculus (Spix and Agassiz, 1831) caught in Lago Grande at Manacapuru (Amazonas – Brazil)

Brazilian Journal of Biology
We evaluated the stock of peacock bass Cichla monoculus caught by a small-scale fishing fleet in Lago Grande at Manacapuru. The database was constructed by monthly samplings of 200 fish between February 2007 and January 2008. We measured the total length
CP Campos, CEC Freitas
doaj   +1 more source

Panama Canal expansion and shifts in fishing practices: A social‐ecological network approach

People and Nature, Volume 8, Issue 5, Page 1520-1532, May 2026.
Abstract Species introductions have spiked over the past two centuries due to globalization. These introductions impact ecosystems, but may also have long‐term implications for human communities. In one of the world's hubs for global shipping, the Panama Canal, a recent canal expansion has coincided with an increase in marine fishes entering the ...
Michelle Hübel, Gustavo A. Castellanos‐Galindo, Jonathan M. Jeschke, Jorge Abadia, Victor Bravo, Elizabeta Briski, Rigoberto Gonzalez, Diana Sharpe, Mark E. Torchin, Marisol P. Valverde, Lotta C. Kluger   +10 more
wiley   +1 more source

Seasonal and ontogenetic variations in the diet of Cichla kelberi Kullander and Ferreira, 2006 introduced in an artificial lake in southeastern Brazil

Brazilian Journal of Biology
The diet of Cichla kelberi introduced in an artificial lake in Leme-SP was predominantly composed of common fish species (Oreochromis niloticus and C. kelberi). In the spring and summer, the most consumed item was O. niloticus.
LM Gomiero, GA Villares Junior, F Naous
doaj   +1 more source

Evaluation of Proposed Speckled Peacock Bass Cichla temensis Introduction to Puerto Rico

North American Journal of Fisheries Management, 2017
Abstract Speckled Peacock Bass Cichla temensis are being considered for introduction into Puerto Rico to provide sportfishing opportunities and biological control for invasive New World cichlids. The proposed introduction was evaluated by following the American Fisheries Society's recommended seven-step approach to introducing nonnative ...
J. Wesley Neal, Bies, Jason M., Fox, Cynthia N., Lilyestrom, Craig G.   +3 more
openaire   +1 more source

Analysis of propagule pressure and genetic diversity in the invasibility of a freshwater apex predator: the peacock bass (genus Cichla) [PDF]

Neotropical Ichthyology, 2014
An important step in invasive biology is to assess biological variables that could be used to predict invasion success. The study of genetics, evolution, and interactions of invasive and native species in invaded ranges provides a unique opportunity to study processes in population genetics and the capability of a species' range expansion.
CARVALHO, Daniel Cardoso de, OLIVEIRA, Denise Aparecida Andrade de, SAMPAIO, Maria Iracilda da Cunha, BEHEREGARAY, Luciano Bellagamba   +3 more
openaire   +5 more sources

Cortical Bone Loss in Barcelona Across Time (1st Century CE–18th Century CE) and Its Potential Relationship With Linear Enamel Hypoplasia

American Journal of Biological Anthropology, Volume 189, Issue 4, April 2026.
ABSTRACT Objectives The purpose of this study is to conduct a diachronic analysis of cortical bone loss in Barcelona, spanning from the 1st to 18th century CE, assessing the relationship between cortical bone loss and early‐life stressors, as indicated by linear enamel hypoplasia (LEH) across Roman, Late Antiquity, Medieval, and Modern periods and ...
Antony Cevallos, Alexandre Tarragó, Carme Rissech   +2 more
wiley   +1 more source

Unprotected Waters: When Protection Fails In Freshwater

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 3, March 2026.
ABSTRACT Invasive species are a major driver of biodiversity loss in protected areas (PAs), yet their impacts in aquatic environments are less well documented. This study investigated the occurrence and distribution of nonnative freshwater fish in federal PAs in Brazil.
Aymar Orlandi Neto, Éder André Gubiani, Igor Paiva Ramos   +2 more
wiley   +1 more source

Growth of the Cichla temensis Humboldt, 1821 (Perciformes: Cichlidae) from the middle rio Negro, Amazonas, Brazil

Neotropical Ichthyology
This study aimed to estimate age and growth of the peacock bass Cichla temensis from the rio Negro (Brazilian Amazonia) by analyzing scale annuli. Specimens were captured between October 2011 and September 2012 in the main channel of the river and in ...
Caroline Pereira Campos, Carlos Edwar de Carvalho Freitas, Sidineia Amadio   +2 more
doaj   +1 more source

Habitat Preferences and Short‐Term Dynamics of Alien Fishes Revealed by Environmental DNA in River Floodplains

Environmental DNA, Volume 8, Issue 2, March/April 2026.
Based on eDNA metabarcoding, the study revealed habitat‐use patterns and the temporal dynamics of non‐native fish species in two Danubian floodplains. Hydrological connectivity played a major role in shaping alien fish community assembly. ABSTRACT Floodplains are among the most diverse freshwater ecosystems, yet they are increasingly threatened by ...
István Czeglédi, Andrea Funk, Didier Pont, Thomas Hein, Paul Meulenbroek, Bálint Preiszner, Alice Valentini, Tibor Erős   +7 more
wiley   +1 more source