to whom? to what? harmful is a purely subjective term
No, algae are not harmful unless it dies. (Found this answer on Yahoo.com)
Water algae can be harmful but most of them are not... Just dont eat any:) :) lol
Algae can be both harmful and helpful. Harmful algae blooms can release toxins harmful to aquatic life and human health. However, algae are also vital to aquatic ecosystems as they produce oxygen through photosynthesis and serve as food for organisms in the food chain.
**** yes
Poison
Yes, black algae can be harmful to fish as it can compete with them for oxygen and nutrients, leading to stress and potential health issues.
The useful effects of algae is that it provides oxygen for various living things. Algae is also a food resource for humans and fish. Algae can become harmful if they produce toxins. Too much algae in the water can kill fish because the algae consumes a great amount of oxygen and can block the sunlight from reaching underwater.
ewan ko
Some algae in the red tide contains a poison that can kill fish.
Chlamydomonas is not harmful to us because it is a photosynthetic organism Also a green Algae
A population explosion of algae is called an ALGAL BLOOM
Algae can be harmful to fish in a pond if it grows excessively and depletes oxygen levels in the water, leading to potential suffocation of the fish. Additionally, certain types of algae can release toxins that are harmful to fish. Proper management of algae growth is important to maintain a healthy environment for fish in a pond.