Dictionary > Bacterioplankton

Bacterioplankton

Definition
noun
The bacterial component of plankton of aquatic ecosystems
Supplement
Plankton pertain to the small organisms that drift, float, or weakly swimming in aquatic habitats. Some of them may be capable of diel vertical migration but they, in general, flow with their surrounding currents. They may be classified according to their trophic level groups: (1) phytoplankton, (2) zooplankton, (3) bacterioplankton, and (4) mycoplankton.
Bacterioplankton are the bacterial component of the plankton. They are comprised of prokaryotes. Some of them serve as primary producers and others as primary consumers in aquatic ecosystems (e.g. marine and freshwater ecosystems). Primary producer bacterioplankton are those that are capable of photosynthesis, e.g. blue-green algae (cyanophyta). It should be noted though that cyanophyta are also referred to as phytoplankton since they are also regarded as one of the photosynthetic algal groups. However, they are the only algal group that is prokaryotic and therefore are also considered as bacteria. Bacterioplankton are ecologically essential since they are involved in the remineralization processes of organic material. They drive global biogeochemical cycling of elements (e.g. carbon fixation, nitrogen fixation, denitrification, nitrification, etc.). Many of them are saprotrophic as they obtain energy from organic material they consume.
Word origin: bacterio– (of bacteria) + planktón, (planktós (“wandering”)
See also:


You will also like...

"Cronopio dentiacutus", a prehistoric mammal (an illustration)
Mammalian Ancestors

Mammals are a diverse group of organisms, where most of them develop their offspring within the uterus of the mother. Ov..

complete-dominance
Dominance

This tutorial presents Gregor Mendel's law of dominance. Learn more about this form of inheritance and how it can be pre..

Plant Auxins
Plant Auxins – Phototropism & Geotropism

Plants produce hormones to regulate their growth. Auxins, for instance, influence plant growth. Know the role of auxin i..

Principles of Hormonal Control Systems
Principles of Hormonal Control Systems

Hormones are essential in the regulation of the activity of the various biological systems of the human body. The ineffi..

Biological Cell Defense
Biological Cell Defense

Organisms employ different strategies to boost its defenses against antigens. Humans have an immune system to combat pat..

Ecological Research Measuring & Analysis
Ecological Research: Measuring & Analysis

This lesson is about the methods used for ecological research, such as quadrat and transect sampling, canopy fogging, an..

Related Articles...

No related articles found

See all Related Topics