Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Microbial Nutrition01:28

Microbial Nutrition

2.0K
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...
2.0K
Microbes and Other Elemental Cycles01:24

Microbes and Other Elemental Cycles

89
Microbial activity plays a pivotal role in the biogeochemical cycling of iron and manganese, especially at the redox gradients characteristic of stratified aquatic environments. These cycles are driven by microbial transformations between oxidized and reduced forms of the metals, allowing organisms to exploit them for metabolic energy and structural purposes.Iron Cycling Across Redox GradientsIn neutral, oxygen-rich surface waters, iron is predominantly found in its oxidized, insoluble ferric...
89
Marine Microbial Ecology01:30

Marine Microbial Ecology

66
Marine microbial ecosystems are shaped by distinct physicochemical limits, including high salinity, low nutrient availability, and fluctuating oxygen levels. These conditions favor smaller microbial cell sizes, which maximize their surface-to-volume ratio for efficient nutrient uptake.Microbial activity and community composition are closely linked to biogeochemical cycles, particularly in dynamic environments like estuaries, where halotolerant microbes thrive in response to variable salinity...
66
Freshwater Microbial Ecology01:24

Freshwater Microbial Ecology

58
Freshwater systems such as streams, rivers, and lakes exhibit distinct physical and biological characteristics that influence their microbial communities. These environments are broadly categorized into lotic systems—those with flowing waters like streams and most rivers—and lentic systems, which include still or slow-moving waters such as lakes, ponds, and marshes.In lentic systems, phytoplankton drive primary production, generating autochthonous organic carbon. In contrast, lotic...
58
Soil Microbial Ecology01:29

Soil Microbial Ecology

83
Soil microbial ecology is defined by highly diverse, spatially structured communities that drive nutrient cycling, organic matter turnover, and overall ecosystem stability. Although a gram of soil can contain thousands of bacterial and archaeal taxa, the ecological processes they mediate are even more crucial for sustaining terrestrial life.Microhabitats and NichesSoil is a heterogeneous mixture of minerals, organic matter, water, and air. Microbes inhabit distinct microhabitats formed by...
83
Microbes and Climate Change01:27

Microbes and Climate Change

91
Microorganisms are pivotal agents in Earth's biogeochemical cycles, significantly influencing climate dynamics through their metabolic activities. These microbes modulate the levels of key greenhouse gases by both contributing to and helping mitigate climate change.Microbial Contributions to Greenhouse Gas EmissionsRising global temperatures accelerate microbial metabolism, which, in turn, speeds up the decomposition of organic matter. This process releases carbon dioxide (CO₂) through...
91

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Genome-resolved biogeography of Phaeocystales, cosmopolitan bloom-forming algae.

Nature communications·2025
Same author

Ice gliding diatoms establish record-low temperature limits for motility in a eukaryotic cell.

Proceedings of the National Academy of Sciences of the United States of America·2025
Same author

Unveiling the contribution of particle-associated non-cyanobacterial diazotrophs to N<sub>2</sub> fixation in the upper mesopelagic North Pacific Gyre.

Communications biology·2025
Same author

Rapid climate change alters the environment and biological production of the Indian Ocean.

The Science of the total environment·2023
Same author

UCYN-A/haptophyte symbioses dominate N<sub>2</sub> fixation in the Southern California Current System.

ISME communications·2023
Same author

Seasonal Water Mass Evolution and Non-Redfield Dynamics Enhance CO<sub>2</sub> Uptake in the Chukchi Sea.

Journal of geophysical research. Oceans·2023

Related Experiment Video

Updated: May 1, 2026

Chemotactic Response of Marine Micro-Organisms to Micro-Scale Nutrient Layers
22:38

Chemotactic Response of Marine Micro-Organisms to Micro-Scale Nutrient Layers

Published on: May 28, 2007

12.9K

Marine microorganisms and global nutrient cycles.

Kevin R Arrigo1

  • 1Department of Geophysics, Stanford University, Stanford, California 94305-2215, USA. arrigo@stanford.edu

Nature
|September 16, 2005
PubMed
Summary

Marine microbes are key players in global nutrient cycles, influencing biological production and atmospheric carbon dioxide. Their complex roles and distributions are a major focus in biological oceanography.

Area of Science:

  • Biological oceanography
  • Biogeochemical cycles
  • Marine microbial ecology

Background:

  • Nutrient cycling across atmospheric, terrestrial, and oceanic reservoirs shapes ecosystems and influences global atmospheric carbon dioxide levels.
  • Marine microorganisms, due to rapid growth, significantly contribute to global nutrient cycles.
  • Understanding the factors controlling marine microbial distribution and nutrient transformations is a critical challenge.

Purpose of the Study:

  • To investigate the complexity of marine microbial communities.
  • To understand the controls on marine microbial distributions and nutrient transformations.
  • To highlight the role of marine microbes in global nutrient cycling.

Main Methods:

  • This study synthesizes current understanding in biological oceanography.

More Related Videos

Unraveling the Unseen Players in the Ocean - A Field Guide to Water Chemistry and Marine Microbiology
10:43

Unraveling the Unseen Players in the Ocean - A Field Guide to Water Chemistry and Marine Microbiology

Published on: November 5, 2014

25.0K
Visualizing Methane-Cycling Microbial Dynamics in Coastal Wetlands
07:26

Visualizing Methane-Cycling Microbial Dynamics in Coastal Wetlands

Published on: January 31, 2025

971

Related Experiment Videos

Last Updated: May 1, 2026

Chemotactic Response of Marine Micro-Organisms to Micro-Scale Nutrient Layers
22:38

Chemotactic Response of Marine Micro-Organisms to Micro-Scale Nutrient Layers

Published on: May 28, 2007

12.9K
Unraveling the Unseen Players in the Ocean - A Field Guide to Water Chemistry and Marine Microbiology
10:43

Unraveling the Unseen Players in the Ocean - A Field Guide to Water Chemistry and Marine Microbiology

Published on: November 5, 2014

25.0K
Visualizing Methane-Cycling Microbial Dynamics in Coastal Wetlands
07:26

Visualizing Methane-Cycling Microbial Dynamics in Coastal Wetlands

Published on: January 31, 2025

971
  • It involves the analysis of existing data on marine microbial ecology.
  • Focuses on theoretical and observational approaches to nutrient cycling.

    • Main Results:

    • Marine microbial communities exhibit a previously unrecognized level of complexity.
    • Nutrient cycling is significantly constrained by microbial activities.
    • Microbial roles in structuring marine ecosystems are more intricate than previously thought.

    Conclusions:

    • Marine microorganisms are central to understanding global nutrient cycles and ecosystem structure.
    • Further research is needed to fully elucidate the complex interactions within marine microbial communities.
    • The complexity of marine microbial life has profound implications for ocean productivity and climate regulation.