- Vibrio species: These bacteria are found in warm coastal waters and can cause gastroenteritis, wound infections, and ear infections.
- Escherichia coli: This bacterium is found in the intestines of humans and other animals and can cause diarrhea, urinary tract infections, and sepsis.
- Salmonella species: These bacteria are found in the intestines of animals and can cause food poisoning.
- Staphylococcus aureus: This bacterium is found on the skin and in the nose of humans and can cause skin infections, pneumonia, and food poisoning.
Archaea
- Halobacteria: These archaea are found in extremely salty environments and are known for their ability to produce a red pigment that protects them from the sun.
- Methanogens: These archaea are found in anaerobic environments and produce methane gas as a byproduct of their metabolism.
Protists
- Diatoms: These algae are found in all oceans and are important primary producers.
- Dinoflagellates: These algae are found in all oceans and can be photosynthetic or heterotrophic. Some dinoflagellates produce toxins that can cause harmful algal blooms.
- Foraminifera: These protozoa are found in all oceans and are important for building carbonate sediments.
- Radiolaria: These protozoa are found in all oceans and are important for building siliceous sediments.
Fungi
- Aspergillus species: These fungi are found in marine environments and can cause infections in humans and animals.
- Candida species: These fungi are found in marine environments and can cause infections in humans and animals.
- Penicillium species: These fungi are found in marine environments and can produce antibiotics that can be used to treat bacterial infections.
Viruses
- Hepatitis A virus: This virus is found in contaminated water and can cause liver inflammation.
- Norovirus: This virus is found in contaminated water and can cause gastroenteritis.
- Rotavirus: This virus is found in contaminated water and can cause diarrhea, vomiting, and fever.