Search research articles

ACERCA DE JoVE

Visión General Liderazgo Blog Centro de Ayuda JoVE

AUTORES

Proceso de Publicación Consejo Editorial Alcance y Políticas Revisión por Pares Preguntas Frecuentes Enviar

BIBLIOTECARIOS

Testimonios Suscripciones Acceso Recursos Consejo Asesor de Bibliotecas Preguntas Frecuentes

INVESTIGACIÓN

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archivo

EDUCACIÓN

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Centro de Recursos para Profesores Sitio de Profesores

Términos y Condiciones de Uso

Política de Privacidad

Videos de Conceptos Relacionados

Relative Frequency Histogram

Relative Frequency Histogram

The relative frequency depicts the proportion of data points that have each value. The frequency tells the number of data points that have each value. Like the histogram, a relative frequency histogram also has the same shape with a horizontal scale (the x-axis), but the vertical scale (the y-axis) is marked with relative frequencies (percentages of the whole) instead of actual frequencies. A relative frequency histogram is a graphical representation of a frequency distribution where the...

Time-Series Graph

Time-Series Graph

A time-series graph is a line graph with repeated measurements taken at successive intervals of time. It is also called a time series chart. To construct a time-series graph, one must look at both pieces of a paired data set. The horizontal axis is used to plot the time increments, and the vertical axis is used to plot the values of the variable that one is measuring. By using the axes in this way, each point on the graph will correspond to time and a measured quantity. The points on the graph...

Interpreting Run Charts

Interpreting Run Charts

Run charts, essentially line graphs plotted over time, serve as fundamental yet effective tools for process analysis. They chronicle data sequentially, facilitating the identification of trends, shifts, or cyclical movements. This graphical representation is instrumental in determining whether a process is stable or exhibits signs of potential instability indicative of special cause variation. In the healthcare domain, run charts depict infection rates over time, enabling hospitals to monitor...

Red Algae

Red Algae

Red algae, also known as rhodophytes, are primarily found in marine environments, though some species inhabit freshwater and terrestrial ecosystems. These organisms exist in both unicellular and multicellular forms, with some multicellular varieties reaching macroscopic sizes.As phototrophic organisms, red algae contain chlorophyll a; however, their chloroplasts lack chlorophyll b. Instead, they possess phycobiliproteins, which serve as major light-harvesting pigments, similar to those found in...

Deep Sea Microbial Ecology

Deep Sea Microbial Ecology

The deep ocean and its underlying sediments represent vast, largely unexplored microbial habitats that extend far beyond the sunlit photic zone. The photic (euphotic) zone typically spans the upper ~100–200 meters of pelagic waters in the open ocean, but its depth varies geographically and seasonally, where sufficient light supports photosynthetic life. Below this lies the deep sea, spanning roughly 1000–6000 meters (bathypelagic to abyssal zones), with deeper hadal trenches extending beyond...

Increasing Function

Increasing Function

An increasing function exhibits a rise in output values as input values increase. This behavior is depicted graphically as a curve or line that slopes upward from left to right. Such a function satisfies the condition that if x1 < x2, then f(x1) < f(x2), indicating that the function values grow with increasing inputs. This concept is fundamental in understanding growth trends across various domains, such as population dynamics, financial investments, or resource consumption.The average...

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por

Same author

Increasing pressure on freshwater resources due to terrestrial feed ingredients for aquaculture production.

The Science of the total environment·2015

Same author

Experimental evolution gone wild.

Journal of the Royal Society, Interface·2015

Same author

Diurnal changes in seawater carbonate chemistry speciation at increasing atmospheric carbon dioxide.

Marine biology·2014

Same author

Cellular pH measurements in Emiliania huxleyi reveal pronounced membrane proton permeability.

The New phytologist·2011

Same author

The societal challenge of ocean acidification.

Marine pollution bulletin·2010

Same author

Enhanced biological carbon consumption in a high CO2 ocean.

Nature·2007

Search research articles

Video Experimental Relacionado

Updated: Jul 6, 2026

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar

Published on: May 1, 2018

Tendencias temporales en las profundidades del océano Las relaciones de Redfield.

M Pahlow¹, U Riebesell

¹Alfred Wegener Institute for Polar and Marine Research, Post Office Box 120161, D-27515 Bremerhaven, Germany. mpahlow@awi-bremerhaven.de

Science (New York, N.Y.)

|February 5, 2000

Resumen

El ciclo del carbono marino está cambiando. Las proporciones de flujo de partículas del océano profundo (carbono: nitrógeno: fósforo) muestran tendencias temporales, lo que indica que la bomba de carbono biológica no está en estado estacionario.

Más Videos Relacionados

Investigating the Relationship between Sea Surface Chlorophyll and Major Features of the South China Sea with Satellite Information

Investigating the Relationship between Sea Surface Chlorophyll and Major Features of the South China Sea with Satellite Information

Published on: June 13, 2020

Reefshape: A System for the Efficient Collection and Automated Processing of Time-Series Underwater Photogrammetry Data for Benthic Habitat Monitoring

Reefshape: A System for the Efficient Collection and Automated Processing of Time-Series Underwater Photogrammetry Data for Benthic Habitat Monitoring

Published on: June 13, 2025

Videos de Experimentos Relacionados

Last Updated: Jul 6, 2026

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar

Published on: May 1, 2018

Investigating the Relationship between Sea Surface Chlorophyll and Major Features of the South China Sea with Satellite Information

Investigating the Relationship between Sea Surface Chlorophyll and Major Features of the South China Sea with Satellite Information

Published on: June 13, 2020

Reefshape: A System for the Efficient Collection and Automated Processing of Time-Series Underwater Photogrammetry Data for Benthic Habitat Monitoring

Reefshape: A System for the Efficient Collection and Automated Processing of Time-Series Underwater Photogrammetry Data for Benthic Habitat Monitoring

Published on: June 13, 2025

Área de la Ciencia:

Biogeoquímica marina y biogeoquímica marina.
Oceanografía La oceanografía es la oceanografía.
Ciencias del clima Ciencias del clima Ciencias del clima

Sus antecedentes:

La relación Redfield (carbono: nitrógeno: fósforo) es crucial para el ciclo biogeoquímico marino y el secuestro de carbono.
Esta relación se asume típicamente constante en el océano moderno, pero los datos recientes sugieren lo contrario.

Objetivo del estudio:

Para investigar las tendencias temporales en las relaciones de Redfield de aguas profundas en el hemisferio norte durante las últimas cinco décadas.
Comprender las implicaciones de estas tendencias para el ciclo y el secuestro de carbono marino.

Principales métodos:

Análisis de datos de flujo de partículas de aguas profundas de los océanos Atlántico Norte y Pacífico Norte.
Correlación de los cambios en la relación de Redfield con factores potenciales como la deposición atmosférica y las condiciones oceanográficas.

Principales resultados:

El Atlántico Norte muestra un aumento de la proporción nitrógeno: fósforo, potencialmente vinculado a las emisiones antropogénicas de óxido nitroso.
El Pacífico Norte exhibe crecientes proporciones de carbono: nitrógeno y carbono: fósforo, asociadas con el aumento de las tasas de remineralización y la intensificación de la producción de exportación.
El aumento de la biodisponibilidad del hierro eólico puede estar impulsando el aumento de las exportaciones de carbono en el Pacífico Norte.

Conclusiones:

Las proporciones de Redfield en aguas profundas en el hemisferio norte no son constantes y muestran tendencias temporales significativas.
Estos cambios sugieren que la bomba de carbono biológica no se encuentra actualmente en un estado estacionario.
Los hallazgos tienen implicaciones para la comprensión del secuestro de carbono oceánico y su respuesta a las influencias antropogénicas.