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Other Algae

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 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...

Overview of Algae

Overview of Algae

The kingdom Archaeplastida encompasses red and green algae, along with land plants. Unlike other protists with chloroplasts that arose through secondary endosymbiosis, only red and green algae originated from primary endosymbiotic events. This diverse group of eukaryotic organisms contains chlorophyll and performs oxygenic photosynthesis.Algae exist in various forms, from large brown kelp in coastal waters to green scum in puddles and stains on rocks or soil. Some species are responsible for...

Green Algae

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...

Primary Production

Primary Production

The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.

Diversity of Protists II

Diversity of Protists II

Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...

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Updated: Dec 6, 2025

A Standardized Procedure for Monitoring Harmful Algal Blooms in Chile by Metabarcoding Analysis

A Standardized Procedure for Monitoring Harmful Algal Blooms in Chile by Metabarcoding Analysis

Published on: August 26, 2021

Algal blooms.

Guy Schleyer¹, Assaf Vardi¹

¹Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot 7610001, Israel.

Current Biology : CB

|October 6, 2020

Summary

Algal blooms are a growing concern. This study introduces the topic, highlighting key aspects of these harmful aquatic phenomena.

Area of Science:

Environmental Science
Aquatic Ecology

Background:

Algal blooms, rapid growths of algae, pose significant threats to aquatic ecosystems.
These blooms can lead to oxygen depletion, harming aquatic life and impacting water quality.

Purpose of the Study:

To introduce and define the phenomenon of algal blooms.
To provide a foundational understanding of algal bloom causes and consequences.

Main Methods:

Literature review and synthesis of existing research on algal blooms.
Conceptual framework development for understanding algal bloom dynamics.

Main Results:

Algal blooms are complex events influenced by various environmental factors.
The ecological and economic impacts of algal blooms are substantial and widespread.

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Comparison of Scale in a Photosynthetic Reactor System for Algal Remediation of Wastewater

Comparison of Scale in a Photosynthetic Reactor System for Algal Remediation of Wastewater

Published on: March 6, 2017

Microalgae Cultivation and Biomass Quantification in a Bench-Scale Photobioreactor with Corrosive Flue Gases

Microalgae Cultivation and Biomass Quantification in a Bench-Scale Photobioreactor with Corrosive Flue Gases

Published on: December 19, 2019

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Last Updated: Dec 6, 2025

A Standardized Procedure for Monitoring Harmful Algal Blooms in Chile by Metabarcoding Analysis

A Standardized Procedure for Monitoring Harmful Algal Blooms in Chile by Metabarcoding Analysis

Published on: August 26, 2021

Comparison of Scale in a Photosynthetic Reactor System for Algal Remediation of Wastewater

Comparison of Scale in a Photosynthetic Reactor System for Algal Remediation of Wastewater

Published on: March 6, 2017

Microalgae Cultivation and Biomass Quantification in a Bench-Scale Photobioreactor with Corrosive Flue Gases

Microalgae Cultivation and Biomass Quantification in a Bench-Scale Photobioreactor with Corrosive Flue Gases

Published on: December 19, 2019

Conclusions:

Further research is needed to fully understand and mitigate algal blooms.
Effective management strategies require a comprehensive approach addressing nutrient pollution and other contributing factors.