Video Experimental Relacionado
Updated: Jan 19, 2026
04:54
Assessing Mineral Availability in Fish Feeds using Complementary Methods Demonstrated with the Example of Zinc in Atlantic Salmon
Published on: October 29, 2021
3.4K
Aprovechar las pesquerías mundiales para hacer frente a las deficiencias de micronutrientes
Christina C Hicks1,2, Philippa J Cohen3,4, Nicholas A J Graham5,3
1Lancaster Environment Centre, Lancaster University, Lancaster, UK. christina.hicks@lancaster.ac.uk.
Nature
|September 27, 2019
Resumen
Las deficiencias de micronutrientes causan millones de muertes y reducen el PIB. Los peces marinos ofrecen nutrientes vitales, y comprender su composición puede mejorar la seguridad alimentaria y nutricional a nivel mundial.
Área de la Ciencia:
- Biología marina
- Ciencias de la nutrición
- Gestión de la pesca
Sus antecedentes:
- Las deficiencias de micronutrientes causan mortalidad global y pérdidas económicas significativas.
- El pescado es una rica fuente de micronutrientes esenciales, pero a menudo se pasa por alto en las políticas nutricionales.
- La comprensión limitada de la composición de los nutrientes de los peces y de los rendimientos pesqueros dificulta el desarrollo de políticas eficaces.
Objetivo del estudio:
- Predecir el contenido de nutrientes de los peces marinos en función de las características ambientales y ecológicas.
- Mapear las concentraciones mundiales de nutrientes en la pesca marina.
- Para comparar el rendimiento de nutrientes con la prevalencia de deficiencia de micronutrientes.
Principales métodos:
- Análisis de 7 nutrientes en más de 350 especies de peces marinos.
- Desarrollo de un modelo predictivo para el contenido de nutrientes.
- Comparación de los rendimientos de nutrientes de la pesca con las necesidades dietéticas humanas.
Principales resultados:
- Las especies tropicales son ricas en calcio, hierro y zinc.
- Los peces más pequeños y las especies pelágicas tienen un mayor contenido de ácidos grasos omega-3.
- La calidad de los nutrientes de la pesca depende de la composición de las especies, no del rendimiento total.
Conclusiones:
- Los peces marinos tienen el potencial de mejorar significativamente la seguridad alimentaria y nutricional mundial.
- La gestión específica de la pesca puede hacer frente a las deficiencias de micronutrientes.
- Las estrategias basadas en el pescado pueden satisfacer las necesidades dietéticas, especialmente para las poblaciones costeras y los niños.
Más Videos Relacionados
Videos de Conceptos Relacionados
01:43Sustainable Development
14.8K
As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
14.8K
01:28Microbial Nutrition
1.1K
Organisms exhibit remarkable metabolic diversity, categorized based on how they acquire energy and carbon. These strategies enable survival in various ecological niches and are essential for maintaining energy flow and nutrient cycling within ecosystems.Energy and Carbon SourcesOrganisms are classified as phototrophs or chemotrophs based on energy acquisition. Phototrophs use light as their energy source, while chemotrophs rely on oxidizing chemical compounds. Further differentiation arises...
1.1K
01:19Absorption of Nutrients
2.8K
Absorption refers to taking dietary nutrients from the intestinal lumen for transportation throughout the body. After digestion in the small intestine, carbohydrates, proteins, and fats are broken down into simpler forms. These essential macronutrients and other vital substances, such as vitamins, minerals, and water, are then prepared for absorption into the bloodstream.
Enterocytes, which are specialized polar epithelial cells, line the mucosa of the small intestinal walls. These cells...
Enterocytes, which are specialized polar epithelial cells, line the mucosa of the small intestinal walls. These cells...
2.8K
02:35Key Elements for Plant Nutrition
24.0K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
24.0K
01:06Primary Production
25.1K
The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.
25.1K
01:22Bioavailability Enhancement: Determination and Conceptual Approaches in Overcoming Bioavailability Problems
192
Body:Bioavailability is a critical pharmacological concept that measures the extent and rate at which an active drug ingredient or therapeutic moiety enters the systemic circulation, remaining unchanged. It's a pivotal factor in determining a drug's efficacy and safety.The Biopharmaceutics Classification System (BCS) plays an essential role in drug development by categorizing drugs into four classes based on their solubility and permeability. This classification aids in understanding drug...
192