Results 101 to 110 of about 2,339 (217)

DNA barcoding uncovers two putative new species in Trachelyopterus (Siluriformes: Auchenipteridae)

Journal of Fish Biology, EarlyView.
Abstract Trachelyopterus is a cryptic genus within the Neotropical catfish family Auchenipteridae with a complex history of taxonomic revisions. Despite the notable morphological and genetic similarities among its species, some studies suggest that the genus harbours greater diversity than is currently recognized, including additional species yet to be
Fiorindo José Cerqueira, Maelin da Silva, Chrystian Aparecido Grillo Haerter, Sandra Mariotto, Liano Centofante, Eliana Feldberg, Orlando Moreira Filho, Vladimir Pavan Margarido, Daniel Rodrigues Blanco, Roberto Laridondo Lui   +9 more
wiley   +1 more source

Cryptic diversity and recent diversification in the Pyrrhulina australis species complex (Characiformes, Lebiasinidae) revealed by mitochondrial DNA

Journal of Fish Biology, EarlyView.
Abstract Pyrrhulina australis Eigenmann & Kennedy, 1903, is widely distributed across the main hydrographic basins of South America. The taxonomic integrity of this species is nevertheless challenged by the lack of clear diagnostic characters, its marked geographic variation and the morphological overlap with its congeners. In this context, the present
Taina Barbosa De Souza, Daniela Cristina Ferreira, Hugmar Pains Da Silva, Carolina B. Machado, Claudio Oliveira, André L. Netto‐Ferreira, Paulo C. Venere   +6 more
wiley   +1 more source

Integrated multitissue analysis reveals distinct oxidative stress responses during recovery from cold shock in the Amazonian fish Colossoma macropomum

Journal of Fish Biology, EarlyView.
Abstract Tambaqui (Colossoma macropomum) is a tropical fish widely cultivated in South America. The increasing demand for this species has heightened interest in its cultivation in subtropical regions with greater thermal variability, where cold shock may induce oxidative stress. This study evaluated the effects of cold shock and subsequent recovery on
Naiara Melo, Isaac Konig, Stefania Priscilla de Souza, Maria Fernanda Aquino Freitas, Daniella Aparecida de Jesus Paula, Ronald Kennedy Luz, Priscila Vieira Rosa, Luis David Solis Murgas   +7 more
wiley   +1 more source

Diagnosis and Off‐Label Treatment of Subcutaneous Putative Dracunculoid Nematodes in Apteronotus albifrons Originating From Wild‐Caught Fisheries

Journal of Fish Diseases, EarlyView.
ABSTRACT Apteronotus albifrons (Gymnotiformes: Apteronotidae), commonly known as the black ghost knifefish, is a high‐value ornamental fish that is susceptible to various parasites. The affected fish were wild‐caught fisheries and subsequently introduced into a commercial breeding system.
Pedro Henrique Magalhães Cardoso, Simone de Carvalho Balian, Herbert Sousa Soares, Marcelo Bahia Labruna, Gracienhe Gomes dos Santos, José Blanchard Girão Ribeiro Filho, Mauricio Laterça Martins   +6 more
wiley   +1 more source

Immunogenicity and Protective Efficacy of the First Autogenous Aeromonas hydrophila Vaccine for Piaractus brachypomus

Journal of Fish Diseases, EarlyView.
ABSTRACT Aeromonas hydrophila is a major zoonotic bacterial pathogen responsible for haemorrhagic septicemia, substantial economic losses in aquaculture and increasing antimicrobial resistance among field isolates. It is also one of the main bacterial species associated with mortality outbreaks in pirapitinga, Piaractus brachypomus, culture in the ...
Layana Aparecida Batista Pereira, Juliana do Nascimento Ferreira, Laine Patricia Costa dos Santos, Larissa Andréia Ferreira Sampaio, Igor Bartolomeu Alves de Barros, Elizabeth Gusmão Affonso, Jefferson Yunis‐Aguinaga, Gustavo da Silva Claudiano   +7 more
wiley   +1 more source

Governing Transnational Commons: How International Treaties and Multi‐Stakeholder Organizations Shape Cooperation and Conflict

Journal of Management Studies, EarlyView.
Abstract When common‐pool resources such as freshwater, clean air, and fisheries span national borders, the collective action problems encountered are particularly severe. This study explores the role of polycentric governance systems in overcoming these pressing problems, which frequently underlie global grand challenges. Integrating political economy
Amol M. Joshi, David Antons, Erk P. Piening, Christina Dienhart, Torsten‐Oliver Salge   +4 more
wiley   +1 more source

Shape of Water: Power Dynamics for Supply Chain Resilience

Journal of Supply Chain Management, EarlyView.
ABSTRACT The world is facing climate change‐driven disruptions such as extreme weather events, which affect nature as well as firms and their supply chains. Nonetheless, little is known about how supply chain players shape their socioecological resilience, including from a power perspective.
Aristides R. Oliveira Junior, Minelle E. Silva, Fabiana L. Oliveira, Daiane M. Neutzling   +3 more
wiley   +1 more source

Molecular phylogenetic analysis sheds light on the diversity and evolutionary history of the Neotropical and African Triplophyllum (Tectariaceae)

Journal of Systematics and Evolution, EarlyView.
We used a molecular approach to resolve the evolutionary lineages of Neotropical Triplophyllum, uncovering that current species circumscriptions are hindered by high morphological homoplasy in indument characters. Our results support the recognition of three new species and provide a necessary neotypification for T.
Mauricio Gonçalves Nunes, Amabily Bohn, Jefferson Prado, Regina Y. Hirai, Hanna Tuomisto, Germinal Rouhan, Paulo H. Labiak   +6 more
wiley   +1 more source

Hydrodynamics of the Amazon basin [PDF]

Anais da Academia Brasileira de Ciências, 2002
openaire   +3 more sources

Tick‐borne diseases in subtropical dairy farming: The role of calf rearing strategies in antibody and antigen prevalence Enfermedades Transmitidas por Garrapatas en la Ganadería Lechera subtropical: El Papel de las Estrategias de Crianza de Terneros en la Prevalencia de Anticuerpos y Antígenos

Medical and Veterinary Entomology, EarlyView.
Tropical farmers try to adapt calf‐rearing systems to temperate dairy industry standards. Calves in tick‐infested areas develop stronger immunity to TBD under controlled exposure to ticks. Early tick exposure promotes sustainable management, balancing tick infestation and developing TBD immunity.
Daniela Balseca, Valeria Paucar‐Quishpe, Richar Rodríguez‐Hidalgo, Ximena Pérez‐Otáñez, Darío Cepeda‐Bastidas, Cecilia Pérez‐Escalante, María‐Augusta Chávez‐Larrea, Sandra Enríquez, Jorge Grijalva, Sophie O. Vanwambeke, Claude Saegerman, Lenin Ron‐Garrido   +11 more
wiley   +1 more source