promana

Antimicrobial Secretions of Toads (Anura, Bufonidae): Bioactive Extracts and Isolated Compounds against Human Pathogens

Species of the family Bufonidae, better known as true toads, are widespread and producebioactive substances in the secretions obtained from specialized skin macroglands. Some true toadshave been employed as a folk remedy to treat infectious diseases caused by microbial pathogens.Recent publications based on in silico analysis highlighted the Bufonidae as promising sources ofantimicrobial peptides. A […]

Antimicrobial Secretions of Toads (Anura, Bufonidae): Bioactive Extracts and Isolated Compounds against Human Pathogens Leer más »

Genetic structure of the invasive Nile tilapia Oreochromis niloticus (Perciformes, Cichlidae) and molecular identification of tilapia species in Panama using barcode

Genetic diversity and genetic structure of the invasive Nile tilapia (Oreochromis niloticus) were studied using partial sequences of cytochrome oxidase I gene from samples collected in Gatun, Bayano, Alajuela, and Barrigon lakes, Republic of Panama. O. niloticus sequences from Bayano included in the analysis corresponded to samples from previous studies conducted in this lake. O.

Genetic structure of the invasive Nile tilapia Oreochromis niloticus (Perciformes, Cichlidae) and molecular identification of tilapia species in Panama using barcode Leer más »

A preliminary multi-isotope assessment of human mobility and diet in pre-columbian panama

This study uses carbon (δ¹³C), nitrogen (δ¹⁵N), oxygen (δ¹⁸O), and strontium (⁸⁷Sr/⁸⁶Sr) isotopes to infer the diets and mobility patterns of pre-Columbian humans from seven archaeological sites in Panama: Cerro Mangote, Sitio Sierra, and Cerro Juan Díaz in central Pacific Panama; Cerro Brujo and Sitio Drago along Panama’s northwest Caribbean coast; Jicarita Island in the

A preliminary multi-isotope assessment of human mobility and diet in pre-columbian panama Leer más »

Life Below Water

The problems related to the process of industrialisation such as biodiversity depletion, climate change and a worsening of health and living conditions, especially but not only in developing countries, intensify. Therefore, there is an increasing need to search for integrated solutions to make development more sustainable. The United Nations has acknowledged the problem and approved the 2030

Life Below Water Leer más »

Benthic community responses to organic enrichment during an ENSO event (2009–2010), in the north coast of Rio de la Plata estuary

The 2009–2010 “El Niño”-Southern Oscillation (ENSO) event was characterized by a warm-phase leading to a five-fold increase in the Río de la Plata river flow and an associated change in trophic state because of organic enrichment. We analyzed the biotic response of benthic communities to such an increased trophic state during this ENSO event using

Benthic community responses to organic enrichment during an ENSO event (2009–2010), in the north coast of Rio de la Plata estuary Leer más »

Assessing multimetric trophic state variability during an ENSO event in a large estuary (Río de la Plata, South America)

Abstract During the “El Niño”- Southern Oscillation (ENSO) event 2009-2010, trophic state uni (TSI´s) and multimetric (TRIX´s) indexes were determined in the north coast of the Rio de la Plata (RdlP). The relationships of such indexes with the hydrological, physical and chemical parameters were explored to identify climatic variability or anthropogenic effects on the eutrophication

Assessing multimetric trophic state variability during an ENSO event in a large estuary (Río de la Plata, South America) Leer más »

Mesozooplancton y variacion ambiental durante el evento ENOS 2009-2010 en la costa norte del esturario del rio de la plata

Previous studies have demonstrated that macro-scale climatic events such as ENSO, cause changes in meteorological and hydrological conditions, inducing physicochemical changes in the water column, as well as in coastal and estuarine communities in the Atlantic Ocean. Rio de la Plata (RdlP) is the second largest estuary of South America, where ENSO is a macro-scale

Mesozooplancton y variacion ambiental durante el evento ENOS 2009-2010 en la costa norte del esturario del rio de la plata Leer más »

Biología y Métodos de estudio del Zooplancton gelatinoso con énfasis en investigaciones del Pacífico Tropical

Esta revisión da un vistazo general a los avances en el estudio de zooplanctongelatinoso en el área del Pacífico Este Tropical. Se inicia con una breve descripción delos principales filos que conforman el zooplancton gelatinoso, Cnidaria y Ctenofora, ysobre la clase Thaliacea, perteneciente al subfilo Urochordata, cuyos integrantes sonfrecuentes en esta zona. Además, se realiza

Biología y Métodos de estudio del Zooplancton gelatinoso con énfasis en investigaciones del Pacífico Tropical Leer más »

Management and Monitoring of Eutrophication: Trophic State Indexes on the Río de la Plata Northern Coast

Marine pollution is an introduction by humans, directly or indirectly, of substances or energy into marine environments (including estuaries) resulting in such deleterious effects as harm to living resources, hazards to human health, hindrance of marine activities including fishing, impairment of quality for use of sea, and reduction of amenities. Eutrophication process or the enrichment

Management and Monitoring of Eutrophication: Trophic State Indexes on the Río de la Plata Northern Coast Leer más »

Intertidal sea anemones (Cnidaria: Actiniaria) from the west coast of the Peninsula of Baja California, Mexico

Nine species of sea anemones are documented from the west coast of the Peninsula of Baja California. Short descriptions of Anthopleura artemisia (Pickering in Dana, 1846), A elegantissima (Brandt, 1835), A. sola Pearse & Francis, 2000 and Epiactis prolifera Verrill, 1869 are provided, including images of the external and internal anatomy, as well as cnidae.

Intertidal sea anemones (Cnidaria: Actiniaria) from the west coast of the Peninsula of Baja California, Mexico Leer más »