Results 51 to 60 of about 70,355 (244)
Peces nativos y pesca artesanal en la cuenca Usumacinta, Guatemala
Revista Mexicana de Biodiversidad, 2018 La ictiofauna nativa de la cuenca del rio Usumacinta se documento en el noroeste de Guatemala para conocer la composicion de los peces nativos en 20 sitios y su importancia en la pesca artesanal.
Christian Barrientos +3 more
semanticscholar +1 more source
The Anatomical Record, EarlyView.Abstract The claspers are the copulatory organs in male elasmobranchs, responsible for directing the semen into the female cloaca (C). However, the microscopic morphology of the claspers remains poorly understood. This study describes the morphology of the claspers and clasper glands (CGs) of cururu stingray (Potamotrygon wallacei) at different ...
Matheus Samuel Cunha Braga +4 more
wiley +1 more source
Diversidad de peces en hábitats estuarinos delta del río Atrato, golfo de Urabá
Boletín Científico Centro de Museos Museo de Historia Natural, 2019 Objetivo: Determinar las especies de peces en cuatro hábitats estuarinos (arracachal, eneal, manglar y áreas sin vegetación) en el delta del río Atrato.
Luis Bryan Arango Sánchez +2 more
semanticscholar +1 more source
Turning Green Into Gold: The Impact of Green Intellectual Capital on Performance in European Firms
Business Strategy and the Environment, EarlyView.ABSTRACT This study examines the impact of green intellectual capital (GIC)—green human, structural and relational capital—on business performance in European firms. Using Eurobarometer 498 data and Partial Least Squares Structural Equation Modelling (PLS‐SEM), results show that GIC explains 15.4% of the variance in business performance, with green ...
María del Carmen Peces Prieto +2 more
wiley +1 more source
A new species of Chrysobrycon Weitzman & Menezes, 1998 (Characiformes, Characidae, Stevardiinae) with remarkable sexually dimorphic pigmentation from the upper Río Vaupés basin, Colombian Amazon, with taxonomic key [PDF]
Zoosystematics and EvolutionThis study describes Chrysobrycon calamar, a new stevardiine fish from the upper Río Vaupés basin in Colombia. The new species differs from its congeners by the following combined characters: adult males have a dark vertical blotch on the abdominal ...
James Anyelo Vanegas-Ríos +2 more
doaj +3 more sources
Diversidad y conservación de los peces de la bahía de La Paz, Baja California Sur, México
Revista Mexicana de Biodiversidad, 2018 Se presenta el estudio de la ictiofauna de bahia de La Paz (BLP), sustentado en una lista taxonomica actualizada con notas zoogeograficas, de conservacion e importancia economica. La lista consta de 533 especies, 314 generos, 123 familias, 34 ordenes y 2
Adrián F. González-Acosta +5 more
semanticscholar +1 more source
Sustainable Development, EarlyView.ABSTRACT How do governance quality and corruption jointly shape sustainable development? We analyze an unbalanced panel of 38 Sub‐Saharan African countries (2002–2021) employing PCSE and FGLS estimators. The model also includes controls for health expenditure, digitalization, unemployment, trade openness, and GDP.
Deniz Erenel +2 more
wiley +1 more source
Los peces de aguas profundas [PDF]
, 2018 ¿Qué peces viven en las grandes profundidades del océano?¿Qué características tienen para poder subsistir allí?Fil: Díaz de Astarloa, Juan Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del
Mabragaña, Ezequiel +1 more
core +1 more source
Monitoring Accessibility Services in Digital Television
International Journal of Digital Multimedia Broadcasting, 2012 This paper addresses methodology and tools applied to the monitoring of accessibility services in digital television at a time when the principles of accessibility and design are being considered in all new audiovisual media communication services.
Francisco Utray +3 more
doaj +1 more source
Peces y coipos: zooarqueología del sitio Valle Hermoso 4 (lago Colhué Huapi, Chubut)
Revista del Museo de Antropologia, 2018 Recientemente se iniciaron investigaciones arqueológicas en el lago Colhué Huapi que resultaron en la detección de una alta densidad de sitios en los sectores noreste y sudoeste.
Ariadna Svoboda, E. Moreno
semanticscholar +1 more source