Related Experiment Video
Updated: Feb 8, 2026
07:59
Coral Reef Arks: An In Situ Mesocosm and Toolkit for Assembling Reef Communities
Published on: January 6, 2023
4.3K
Benthic mucilage blooms threaten coralligenous reefs
L Piazzi1, F Atzori2, N Cadoni2
1Dipartimento di Chimica e Farmacia, Università di Sassari, Via Piandanna 4, 07100, Sassari, Italy.
Marine Environmental Research
|June 21, 2018
Summary
Benthic mucilage blooms harm marine ecosystems by reducing biodiversity and negatively impacting coralligenous assemblages. These algal blooms pose a significant ecological threat requiring monitoring.
Area of Science:
- Marine Ecology
- Algal Blooms
- Biodiversity Studies
Background:
- Mucilaginous aggregates from algae are ecological threats to marine systems.
- Benthic mucilage blooms can significantly alter marine habitats.
Purpose of the Study:
- To evaluate the effects of benthic mucilage blooms on coralligenous assemblage structure.
- To assess the ecological impact on a site affected by mucilage.
Main Methods:
- Utilized a Before/After-Control/Impact (BACI) design.
- Compared an impacted site with two reference sites.
- Assessed biodiversity (α and β-diversity) and ecological indices (ESCA, COARSE).
Main Results:
- Reduced α and β-diversity, ESCA, and COARSE indices at the impacted site post-bloom.
- Decreased cover of encrusting algae and bryozoans.
- Increased gorgonian necrosis and algal turf cover at the impacted site.
Conclusions:
- Ephemeral mucilage blooms negatively impact entire coralligenous assemblages.
- Mucilage blooms represent a novel threat to these sensitive habitats.
- Highlights the necessity for robust monitoring programs for marine ecosystems.
Related Concept Videos
01:17What is an Ecosystem?
47.2K
Overview
47.2K
01:19What is Biodiversity?
33.8K
Biodiversity describes the variety of living things at multiple organizational levels: genetic, species and ecosystem diversity. Species diversity includes all branches of the evolutionary tree from single-celled prokaryotic organisms, bacteria, and archaea, to the eukaryotic kingdoms: plants; animals; fungi; and protists. To date, there have been about 1.75 million species identified, and new species are discovered every week.
33.8K
02:09Stereotype Threat and Self-fulfilling Prophecies
42.5K
When we hold a stereotype about a person, we have expectations that he or she will fulfill that stereotype. A self-fulfilling prophecy is an expectation held by a person that alters his or her behavior in a way that tends to make it true. When we hold stereotypes about a person, we tend to treat the person according to our expectations. This treatment can influence the person to act according to our stereotypic expectations, thus confirming our stereotypic beliefs. Research by Rosenthal and...
42.5K
01:21The Phosphorus Cycle
44.0K
Unlike carbon, water, and nitrogen, phosphorus is not present in the atmosphere as a gas. Instead, most phosphorus in the ecosystem exists as compounds, such as phosphate ions (PO43-), found in soil, water, sediment and rocks. Phosphorus is often a limiting nutrient (i.e., in short supply). Consequently, phosphorus is added to most agricultural fertilizers, which can cause environmental problems related to runoff in aquatic ecosystems.
44.0K
01:14Fundamental Attribution Error
13.8K
According to some social psychologists, people tend to overemphasize internal factors as explanations—or attributions—for the behavior of other people. They tend to assume that the behavior of another person is a trait of that person, and to underestimate the power of the situation on the behavior of others. They tend to fail to recognize when the behavior of another is due to situational variables, and thus to the person’s state. This erroneous assumption is...
13.8K
01:50Global Climate Change
29.0K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
29.0K