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

Microenvironments01:22

Microenvironments

54
Microorganisms inhabit highly localized spaces known as microenvironments, which are defined by distinct physical and chemical characteristics. These include oxygen concentration, pH, temperature, light availability, and nutrient levels. The conditions within a microenvironment can differ markedly from those in the surrounding area and significantly influence microbial growth, metabolism, and community structure.Microenvironments often display sharp physicochemical gradients over small spatial...
54
Microbial Mats01:25

Microbial Mats

67
Microbial communities forming biofilms and mats represent complex, spatially structured ecosystems where metabolic processes are stratified according to light, oxygen, and nutrient gradients. Biofilms are initial colonization stages, only a few millimeters thick, while mature microbial mats can reach centimeter-scale thickness and display intricate vertical organization. Their structural and functional heterogeneity allows microorganisms to occupy distinct ecological niches within a few...
67
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
Deep Sea Microbial Ecology01:18

Deep Sea Microbial Ecology

53
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...
53
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

You might also read

Related Articles

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

Sort by
Same author

Hematology-centered profiling of compartmentalized kidney and peripheral blood responses during controlled Vibrio anguillarum infection in mandarin fish (Siniperca chuatsi).

Fish & shellfish immunology·2026
Same author

Optimization of simultaneous bicarbonate recovery and energy generation in a carbon-capture reverse electrodialysis system using response surface methodology.

Environmental research·2026
Same author

Increase in harmful algal blooms and decline in fishery productivity driven by the subtropical Indian Ocean Dipole.

Marine pollution bulletin·2026
Same author

Multi-year monitoring and modeling of benthic environmental improvement by oyster shell capping on coastal sediments.

Marine pollution bulletin·2026
Same author

Bioprocessing of rice starch: advances in extraction, modification, and analytical characterization.

Preparative biochemistry & biotechnology·2026
Same author

Hierarchical Al<sub>2</sub>O<sub>3</sub>-carbon bio-waste microsphere composite as an effective adsorbent for phosphate recovery: Insights into adsorption kinetics and isotherms.

Environmental research·2026

Related Experiment Video

Updated: May 1, 2026

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

25.9K

Field study on short-term changes in benthic environment and benthic microbial communities using pyrolyzed oyster

Maheshkumar Prakash Patil1, Hee-Eun Woo2, Jong-Oh Kim3

  • 1Industry-University Cooperation Foundation, Pukyong National University, 45 Yongso-ro, Nam-Gu, Busan 48513, Republic of Korea.

The Science of the Total Environment
|February 19, 2022
PubMed
Summary

Pyrolyzed crushed oyster shells (PCOS) effectively remediated marine sediments by eliminating hydrogen sulfide and reducing nutrient pollutants. This treatment also shifted microbial communities, promoting beneficial bacteria for ecological health.

Keywords:
Benthic environmentHydrogen sulfiteMicrobial diversityPyrolyzed crushed oyster shellSediment pollutionSediment remediation

More Related Videos

The Benthic Exchange of O2, N2 and Dissolved Nutrients Using Small Core Incubations
10:11

The Benthic Exchange of O2, N2 and Dissolved Nutrients Using Small Core Incubations

Published on: August 3, 2016

10.0K
Bioindication Testing of Stream Environment Suitability for Young Freshwater Pearl Mussels Using In Situ Exposure Methods
07:53

Bioindication Testing of Stream Environment Suitability for Young Freshwater Pearl Mussels Using In Situ Exposure Methods

Published on: September 5, 2018

7.5K

Related Experiment Videos

Last Updated: May 1, 2026

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

25.9K
The Benthic Exchange of O2, N2 and Dissolved Nutrients Using Small Core Incubations
10:11

The Benthic Exchange of O2, N2 and Dissolved Nutrients Using Small Core Incubations

Published on: August 3, 2016

10.0K
Bioindication Testing of Stream Environment Suitability for Young Freshwater Pearl Mussels Using In Situ Exposure Methods
07:53

Bioindication Testing of Stream Environment Suitability for Young Freshwater Pearl Mussels Using In Situ Exposure Methods

Published on: September 5, 2018

7.5K

Area of Science:

  • Marine Biology
  • Environmental Science
  • Microbiology

Background:

  • Marine sediments can accumulate pollutants like hydrogen sulfide (H₂S) and excess nutrients.
  • Sediment pollution negatively impacts marine ecosystems and water quality.

Purpose of the Study:

  • To assess the efficacy of pyrolyzed crushed oyster shells (PCOS) in marine sediment remediation.
  • To investigate the impact of PCOS treatment on microbial community structure and function.

Main Methods:

  • Field study conducted in Buksin Bay, Republic of Korea.
  • Application of PCOS to contaminated marine sediments.
  • Analysis of sediment and water chemistry (H₂S, nutrients, ORP).
  • 16S rRNA sequencing for microbial community analysis.

Main Results:

  • PCOS treatment reduced sediment H₂S from 287 mg/L to 0 mg/L within six months.
  • Significant decreases in NO₂-N + NO₃-N, NH₄-N, and PO₄-P concentrations were observed.
  • Oxidation-reduction potential (ORP) increased in pore water and overlying water post-treatment.
  • Microbial analysis revealed a suppression of H₂S-producing bacteria (Chlorobi) and an increase in beneficial bacteria (Proteobacteria, Bacteroidetes).

Conclusions:

  • PCOS is a viable material for marine sediment remediation, effectively reducing key pollutants.
  • PCOS treatment promotes a shift towards a healthier microbial community structure, enhancing marine ecological functioning.
  • The study highlights the importance of microbial community dynamics in pollutant transformation within marine environments.