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

Diversity of Protists III01:27

Diversity of Protists III

Rhizaria are a diverse group of unicellular protists characterized by their threadlike cytoplasmic extensions known as pseudopodia. These structures aid in both locomotion and feeding, giving Rhizaria an amoeboid appearance. Their amoeboid morphology once led to taxonomic confusion, but molecular phylogenetics has clarified their evolutionary placement and emphasized their shared use of pseudopodia despite divergent lineages.This clade comprises diverse lineages such as Chlorarachniophyta,...
Other Algae01:19

Other Algae

The group Stramenopiles include some phototrophic microorganisms. Members of this group possess flagella covered in numerous short, hairlike extensions, a feature that inspired the group's name, derived from the Latin words for "straw" and "hair." Some of the main categories of Stramenopiles include diatoms, golden algae, and brown algae.Diatoms are unicellular, photosynthetic eukaryotes, with over 200 known genera. They play a key role in the planktonic communities of both marine and...
Red Algae01:23

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...
Green Algae01:21

Green Algae

Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...
Microbial Mats01:25

Microbial Mats

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...
Marine Microbial Ecology01:30

Marine Microbial Ecology

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...

You might also read

Related Articles

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

Sort by
Same author

DNA sequencing of Linnaeus's Ulva compressa, U. intestinalis, and U. linza (Ulvaceae, Chlorophyta) and other Ulva type specimens.

Journal of phycology·2026
Same author

Maigheotides A-C, Peptides from the Deep-Sea Black Coral <i>Phanopathes</i> sp.

Journal of natural products·2025
Same author

Exiguolysin, a Novel Thermolysin (M4) Peptidase from <i>Exiguobacterium oxidotolerans</i>.

Microorganisms·2024
Same author

Xeniaphyllane and Xeniolide Diterpenes from the Deep-Sea Soft Coral <i>Paragorgia arborea</i>.

ACS omega·2024
Same author

Progesterone for Neurodevelopment in Fetuses With Congenital Heart Defects: A Randomized Clinical Trial.

JAMA network open·2024
Same author

Temporal patterns of fucoxanthin in four species of European marine brown macroalgae.

Scientific reports·2023

Related Experiment Video

Updated: Jun 24, 2026

Coral Reef Arks: An In Situ Mesocosm and Toolkit for Assembling Reef Communities
07:59

Coral Reef Arks: An In Situ Mesocosm and Toolkit for Assembling Reef Communities

Published on: January 6, 2023

Like a rolling stone: the mobility of maerl (Corallinaceae) and the neutrality of the associated assemblages.

Gustavo Hinojosa-Arango1, Christine A Maggs, Mark P Johnson

  • 1School of Biological Sciences, Queen's University Belfast, 97 Lisburn Road, Belfast, Northern Ireland BT9 7BL.

Ecology
|March 28, 2009
PubMed
Summary
This summary is machine-generated.

Maerl beds, important habitats for diverse species, show varied responses to natural disturbance. While some changes align with neutral community assembly, others suggest complex ecological interactions influencing species richness and abundance.

More Related Videos

Fluorescence-Activated Cell Sorting for the Isolation of Scleractinian Cell Populations
04:32

Fluorescence-Activated Cell Sorting for the Isolation of Scleractinian Cell Populations

Published on: May 31, 2020

Increasing Durability of Dissociated Neural Cell Cultures Using Biologically Active Coralline Matrix
09:22

Increasing Durability of Dissociated Neural Cell Cultures Using Biologically Active Coralline Matrix

Published on: June 3, 2020

Related Experiment Videos

Last Updated: Jun 24, 2026

Coral Reef Arks: An In Situ Mesocosm and Toolkit for Assembling Reef Communities
07:59

Coral Reef Arks: An In Situ Mesocosm and Toolkit for Assembling Reef Communities

Published on: January 6, 2023

Fluorescence-Activated Cell Sorting for the Isolation of Scleractinian Cell Populations
04:32

Fluorescence-Activated Cell Sorting for the Isolation of Scleractinian Cell Populations

Published on: May 31, 2020

Increasing Durability of Dissociated Neural Cell Cultures Using Biologically Active Coralline Matrix
09:22

Increasing Durability of Dissociated Neural Cell Cultures Using Biologically Active Coralline Matrix

Published on: June 3, 2020

Area of Science:

  • Marine ecology
  • Benthic ecology
  • Community ecology

Background:

  • Nonattached coralline algae beds (maerl or rhodoliths) are widespread and species-rich habitats.
  • These habitats are typically found in physically disturbed areas, leading to frequent movement of maerl thalli.
  • The impact of natural disturbance regimes on maerl-associated species remains poorly understood.

Purpose of the Study:

  • To compare species richness, animal abundance, and algal biomass in maerl-associated communities over two years.
  • To investigate how natural disturbance affects maerl-associated species assemblages.
  • To assess changes in species composition against a neutral model of community assembly.

Main Methods:

  • Comparison of a wave-disturbed maerl bed and a sheltered maerl bed over a two-year period.
  • Assessment of species richness, animal abundance, and algal biomass.
  • Analysis of community changes using a neutral model framework to detect deviations from random sampling.

Main Results:

  • Algal biomass and species richness decreased at the wave-exposed site during high wind speeds.
  • Species richness changes at the exposed site were consistent with neutral assembly, suggesting random species addition as disturbance lessened.
  • Animal species responses were mixed, with both neutral and non-neutral patterns observed; artificial stabilization inconsistently affected animal richness but increased attached algal species.

Conclusions:

  • Community responses to natural disturbance can exhibit neutral dynamics, but the extent of such neutrality may be limited.
  • Artificial stabilization of maerl beds created assemblages distinct from random expectations, indicating non-neutral processes.
  • Observed inconsistencies in community responses to stabilization suggest the influence of site-specific disturbance regimes and adjacent habitat source populations.